/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-array-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 23:23:11,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 23:23:11,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 23:23:11,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 23:23:11,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 23:23:11,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 23:23:11,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 23:23:11,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 23:23:11,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 23:23:11,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 23:23:11,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 23:23:11,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 23:23:11,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 23:23:11,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 23:23:11,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 23:23:11,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 23:23:11,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 23:23:11,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 23:23:11,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 23:23:11,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 23:23:11,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 23:23:11,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 23:23:11,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 23:23:11,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 23:23:11,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 23:23:11,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 23:23:11,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 23:23:11,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 23:23:11,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 23:23:11,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 23:23:11,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 23:23:11,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 23:23:11,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 23:23:11,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 23:23:11,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 23:23:11,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 23:23:11,738 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.epf [2022-01-18 23:23:11,763 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 23:23:11,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 23:23:11,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 23:23:11,764 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 23:23:11,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 23:23:11,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 23:23:11,765 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 23:23:11,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 23:23:11,765 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 23:23:11,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 23:23:11,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 23:23:11,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 23:23:11,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 23:23:11,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 23:23:11,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 23:23:11,766 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 23:23:11,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 23:23:11,766 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 23:23:11,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 23:23:11,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 23:23:11,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 23:23:11,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 23:23:11,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 23:23:11,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:23:11,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 23:23:11,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 23:23:11,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 23:23:11,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 23:23:11,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 23:23:11,767 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 23:23:11,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 23:23:11,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 23:23:11,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 23:23:11,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 23:23:11,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 23:23:11,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 23:23:11,976 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 23:23:11,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-array-1.i [2022-01-18 23:23:12,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84ff972bd/e1c294366b6245cfbb0ab5f66bd1cade/FLAG2e812a997 [2022-01-18 23:23:12,400 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 23:23:12,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-1.i [2022-01-18 23:23:12,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84ff972bd/e1c294366b6245cfbb0ab5f66bd1cade/FLAG2e812a997 [2022-01-18 23:23:12,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84ff972bd/e1c294366b6245cfbb0ab5f66bd1cade [2022-01-18 23:23:12,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 23:23:12,770 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 23:23:12,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 23:23:12,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 23:23:12,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 23:23:12,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:23:12" (1/1) ... [2022-01-18 23:23:12,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e990ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:12, skipping insertion in model container [2022-01-18 23:23:12,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:23:12" (1/1) ... [2022-01-18 23:23:12,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 23:23:12,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 23:23:13,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-1.i[30035,30048] [2022-01-18 23:23:13,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:23:13,119 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 23:23:13,147 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-1.i[30035,30048] [2022-01-18 23:23:13,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:23:13,181 INFO L208 MainTranslator]: Completed translation [2022-01-18 23:23:13,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:13 WrapperNode [2022-01-18 23:23:13,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 23:23:13,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 23:23:13,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 23:23:13,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 23:23:13,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:13" (1/1) ... [2022-01-18 23:23:13,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:13" (1/1) ... [2022-01-18 23:23:13,215 INFO L137 Inliner]: procedures = 170, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2022-01-18 23:23:13,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 23:23:13,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 23:23:13,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 23:23:13,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 23:23:13,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:13" (1/1) ... [2022-01-18 23:23:13,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:13" (1/1) ... [2022-01-18 23:23:13,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:13" (1/1) ... [2022-01-18 23:23:13,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:13" (1/1) ... [2022-01-18 23:23:13,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:13" (1/1) ... [2022-01-18 23:23:13,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:13" (1/1) ... [2022-01-18 23:23:13,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:13" (1/1) ... [2022-01-18 23:23:13,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 23:23:13,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 23:23:13,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 23:23:13,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 23:23:13,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:13" (1/1) ... [2022-01-18 23:23:13,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:23:13,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:13,275 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) [2022-01-18 23:23:13,287 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 [2022-01-18 23:23:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-18 23:23:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 23:23:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 23:23:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2022-01-18 23:23:13,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2022-01-18 23:23:13,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 23:23:13,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 23:23:13,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 23:23:13,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 23:23:13,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 23:23:13,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 23:23:13,300 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 23:23:13,383 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 23:23:13,384 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 23:23:13,572 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 23:23:13,577 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 23:23:13,577 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-18 23:23:13,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:23:13 BoogieIcfgContainer [2022-01-18 23:23:13,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 23:23:13,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 23:23:13,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 23:23:13,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 23:23:13,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:23:12" (1/3) ... [2022-01-18 23:23:13,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea1ebcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:23:13, skipping insertion in model container [2022-01-18 23:23:13,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:23:13" (2/3) ... [2022-01-18 23:23:13,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea1ebcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:23:13, skipping insertion in model container [2022-01-18 23:23:13,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:23:13" (3/3) ... [2022-01-18 23:23:13,584 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-array-1.i [2022-01-18 23:23:13,587 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 23:23:13,587 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 23:23:13,587 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 23:23:13,605 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,605 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,606 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,606 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,606 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,606 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,606 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,606 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,606 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,607 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,607 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,607 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,607 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,607 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,610 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,610 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,610 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,610 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,610 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:13,613 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-18 23:23:13,651 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:23:13,658 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 [2022-01-18 23:23:13,658 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 23:23:13,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 88 transitions, 184 flow [2022-01-18 23:23:13,716 INFO L129 PetriNetUnfolder]: 12/126 cut-off events. [2022-01-18 23:23:13,716 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 23:23:13,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 126 events. 12/126 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 225 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 71. Up to 4 conditions per place. [2022-01-18 23:23:13,719 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 88 transitions, 184 flow [2022-01-18 23:23:13,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 78 transitions, 164 flow [2022-01-18 23:23:13,742 INFO L129 PetriNetUnfolder]: 6/74 cut-off events. [2022-01-18 23:23:13,742 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:23:13,742 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:13,743 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] [2022-01-18 23:23:13,744 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:13,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:13,747 INFO L85 PathProgramCache]: Analyzing trace with hash -744396743, now seen corresponding path program 1 times [2022-01-18 23:23:13,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:13,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226361764] [2022-01-18 23:23:13,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:13,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:13,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:13,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226361764] [2022-01-18 23:23:13,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226361764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:13,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:13,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 23:23:13,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521673277] [2022-01-18 23:23:13,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:13,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 23:23:13,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:13,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 23:23:13,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 23:23:13,946 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 88 [2022-01-18 23:23:13,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 78 transitions, 164 flow. Second operand has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 states have internal predecessors, (162), 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) [2022-01-18 23:23:13,952 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:13,952 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 88 [2022-01-18 23:23:13,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:13,996 INFO L129 PetriNetUnfolder]: 3/99 cut-off events. [2022-01-18 23:23:13,996 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-18 23:23:13,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 99 events. 3/99 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 145 event pairs, 0 based on Foata normal form. 7/99 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2022-01-18 23:23:13,998 INFO L132 encePairwiseOnDemand]: 84/88 looper letters, 2 selfloop transitions, 0 changer transitions 1/74 dead transitions. [2022-01-18 23:23:13,998 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 74 transitions, 160 flow [2022-01-18 23:23:14,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 23:23:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-18 23:23:14,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 166 transitions. [2022-01-18 23:23:14,007 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9431818181818182 [2022-01-18 23:23:14,008 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 166 transitions. [2022-01-18 23:23:14,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 166 transitions. [2022-01-18 23:23:14,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:14,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 166 transitions. [2022-01-18 23:23:14,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 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) [2022-01-18 23:23:14,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2022-01-18 23:23:14,021 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2022-01-18 23:23:14,022 INFO L186 Difference]: Start difference. First operand has 75 places, 78 transitions, 164 flow. Second operand 2 states and 166 transitions. [2022-01-18 23:23:14,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 74 transitions, 160 flow [2022-01-18 23:23:14,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 74 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:14,032 INFO L242 Difference]: Finished difference. Result has 76 places, 73 transitions, 154 flow [2022-01-18 23:23:14,034 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=154, PETRI_PLACES=76, PETRI_TRANSITIONS=73} [2022-01-18 23:23:14,037 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, 1 predicate places. [2022-01-18 23:23:14,037 INFO L470 AbstractCegarLoop]: Abstraction has has 76 places, 73 transitions, 154 flow [2022-01-18 23:23:14,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 states have internal predecessors, (162), 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) [2022-01-18 23:23:14,037 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:14,038 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] [2022-01-18 23:23:14,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 23:23:14,038 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:14,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:14,039 INFO L85 PathProgramCache]: Analyzing trace with hash -53406567, now seen corresponding path program 1 times [2022-01-18 23:23:14,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:14,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819991061] [2022-01-18 23:23:14,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:14,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:14,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:14,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819991061] [2022-01-18 23:23:14,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819991061] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:14,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:14,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:23:14,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531365381] [2022-01-18 23:23:14,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:14,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:23:14,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:14,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:23:14,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:23:14,216 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 88 [2022-01-18 23:23:14,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 73 transitions, 154 flow. Second operand has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 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) [2022-01-18 23:23:14,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:14,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 88 [2022-01-18 23:23:14,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:14,306 INFO L129 PetriNetUnfolder]: 1/85 cut-off events. [2022-01-18 23:23:14,307 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 23:23:14,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 85 events. 1/85 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 31 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 124. Up to 15 conditions per place. [2022-01-18 23:23:14,308 INFO L132 encePairwiseOnDemand]: 76/88 looper letters, 24 selfloop transitions, 9 changer transitions 2/81 dead transitions. [2022-01-18 23:23:14,308 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 81 transitions, 240 flow [2022-01-18 23:23:14,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:23:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:23:14,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 362 transitions. [2022-01-18 23:23:14,311 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6856060606060606 [2022-01-18 23:23:14,311 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 362 transitions. [2022-01-18 23:23:14,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 362 transitions. [2022-01-18 23:23:14,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:14,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 362 transitions. [2022-01-18 23:23:14,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 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) [2022-01-18 23:23:14,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 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) [2022-01-18 23:23:14,314 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 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) [2022-01-18 23:23:14,314 INFO L186 Difference]: Start difference. First operand has 76 places, 73 transitions, 154 flow. Second operand 6 states and 362 transitions. [2022-01-18 23:23:14,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 81 transitions, 240 flow [2022-01-18 23:23:14,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 81 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:14,317 INFO L242 Difference]: Finished difference. Result has 81 places, 74 transitions, 188 flow [2022-01-18 23:23:14,317 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=188, PETRI_PLACES=81, PETRI_TRANSITIONS=74} [2022-01-18 23:23:14,318 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, 6 predicate places. [2022-01-18 23:23:14,318 INFO L470 AbstractCegarLoop]: Abstraction has has 81 places, 74 transitions, 188 flow [2022-01-18 23:23:14,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 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) [2022-01-18 23:23:14,319 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:14,319 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:14,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 23:23:14,319 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:14,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash -658806082, now seen corresponding path program 1 times [2022-01-18 23:23:14,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:14,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618115206] [2022-01-18 23:23:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:14,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:14,363 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 23:23:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:14,420 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 23:23:14,420 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 23:23:14,421 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 23:23:14,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-18 23:23:14,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 23:23:14,426 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-18 23:23:14,427 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 23:23:14,428 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-18 23:23:14,444 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,445 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,445 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,445 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,445 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,445 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,445 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,445 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,445 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,445 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,446 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,446 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,447 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,447 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,447 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,447 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,447 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,447 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,447 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,447 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,447 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,447 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,447 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,448 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,448 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,448 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,449 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,449 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,449 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,450 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,450 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,450 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,450 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,451 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,451 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,452 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,452 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,452 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,458 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 23:23:14,459 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:23:14,460 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 [2022-01-18 23:23:14,460 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 23:23:14,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 95 transitions, 208 flow [2022-01-18 23:23:14,488 INFO L129 PetriNetUnfolder]: 23/217 cut-off events. [2022-01-18 23:23:14,488 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-18 23:23:14,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 217 events. 23/217 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 512 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 128. Up to 8 conditions per place. [2022-01-18 23:23:14,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 95 transitions, 208 flow [2022-01-18 23:23:14,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 85 transitions, 188 flow [2022-01-18 23:23:14,493 INFO L129 PetriNetUnfolder]: 7/76 cut-off events. [2022-01-18 23:23:14,493 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:23:14,493 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:14,493 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] [2022-01-18 23:23:14,493 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:14,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:14,494 INFO L85 PathProgramCache]: Analyzing trace with hash 477382265, now seen corresponding path program 1 times [2022-01-18 23:23:14,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:14,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367690100] [2022-01-18 23:23:14,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:14,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:14,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:14,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:14,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367690100] [2022-01-18 23:23:14,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367690100] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:14,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:14,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 23:23:14,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169200010] [2022-01-18 23:23:14,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:14,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 23:23:14,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:14,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 23:23:14,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 23:23:14,547 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 95 [2022-01-18 23:23:14,547 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 85 transitions, 188 flow. Second operand has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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) [2022-01-18 23:23:14,547 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:14,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 95 [2022-01-18 23:23:14,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:14,579 INFO L129 PetriNetUnfolder]: 7/165 cut-off events. [2022-01-18 23:23:14,579 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-01-18 23:23:14,580 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 165 events. 7/165 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 344 event pairs, 0 based on Foata normal form. 12/165 useless extension candidates. Maximal degree in co-relation 103. Up to 8 conditions per place. [2022-01-18 23:23:14,580 INFO L132 encePairwiseOnDemand]: 91/95 looper letters, 4 selfloop transitions, 0 changer transitions 1/81 dead transitions. [2022-01-18 23:23:14,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 81 transitions, 188 flow [2022-01-18 23:23:14,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 23:23:14,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-18 23:23:14,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 178 transitions. [2022-01-18 23:23:14,583 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9368421052631579 [2022-01-18 23:23:14,583 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 178 transitions. [2022-01-18 23:23:14,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 178 transitions. [2022-01-18 23:23:14,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:14,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 178 transitions. [2022-01-18 23:23:14,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 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) [2022-01-18 23:23:14,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2022-01-18 23:23:14,584 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2022-01-18 23:23:14,584 INFO L186 Difference]: Start difference. First operand has 83 places, 85 transitions, 188 flow. Second operand 2 states and 178 transitions. [2022-01-18 23:23:14,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 81 transitions, 188 flow [2022-01-18 23:23:14,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 81 transitions, 188 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:14,587 INFO L242 Difference]: Finished difference. Result has 84 places, 80 transitions, 178 flow [2022-01-18 23:23:14,587 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=178, PETRI_PLACES=84, PETRI_TRANSITIONS=80} [2022-01-18 23:23:14,589 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 1 predicate places. [2022-01-18 23:23:14,589 INFO L470 AbstractCegarLoop]: Abstraction has has 84 places, 80 transitions, 178 flow [2022-01-18 23:23:14,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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) [2022-01-18 23:23:14,590 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:14,590 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] [2022-01-18 23:23:14,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 23:23:14,590 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:14,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:14,590 INFO L85 PathProgramCache]: Analyzing trace with hash 280868760, now seen corresponding path program 1 times [2022-01-18 23:23:14,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:14,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774960955] [2022-01-18 23:23:14,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:14,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:14,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:14,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:14,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774960955] [2022-01-18 23:23:14,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774960955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:14,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:14,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:23:14,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205866369] [2022-01-18 23:23:14,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:14,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:23:14,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:14,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:23:14,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:23:14,700 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 95 [2022-01-18 23:23:14,701 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 80 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 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) [2022-01-18 23:23:14,701 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:14,701 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 95 [2022-01-18 23:23:14,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:14,778 INFO L129 PetriNetUnfolder]: 5/169 cut-off events. [2022-01-18 23:23:14,778 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-18 23:23:14,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 169 events. 5/169 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 322 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 261. Up to 45 conditions per place. [2022-01-18 23:23:14,779 INFO L132 encePairwiseOnDemand]: 83/95 looper letters, 34 selfloop transitions, 9 changer transitions 0/94 dead transitions. [2022-01-18 23:23:14,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 94 transitions, 298 flow [2022-01-18 23:23:14,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:23:14,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:23:14,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 400 transitions. [2022-01-18 23:23:14,782 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7017543859649122 [2022-01-18 23:23:14,782 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 400 transitions. [2022-01-18 23:23:14,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 400 transitions. [2022-01-18 23:23:14,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:14,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 400 transitions. [2022-01-18 23:23:14,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 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) [2022-01-18 23:23:14,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 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) [2022-01-18 23:23:14,785 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 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) [2022-01-18 23:23:14,785 INFO L186 Difference]: Start difference. First operand has 84 places, 80 transitions, 178 flow. Second operand 6 states and 400 transitions. [2022-01-18 23:23:14,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 94 transitions, 298 flow [2022-01-18 23:23:14,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 94 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:14,791 INFO L242 Difference]: Finished difference. Result has 89 places, 83 transitions, 220 flow [2022-01-18 23:23:14,791 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=220, PETRI_PLACES=89, PETRI_TRANSITIONS=83} [2022-01-18 23:23:14,792 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 6 predicate places. [2022-01-18 23:23:14,792 INFO L470 AbstractCegarLoop]: Abstraction has has 89 places, 83 transitions, 220 flow [2022-01-18 23:23:14,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 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) [2022-01-18 23:23:14,793 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:14,793 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:14,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 23:23:14,793 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:14,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:14,798 INFO L85 PathProgramCache]: Analyzing trace with hash 618023769, now seen corresponding path program 1 times [2022-01-18 23:23:14,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:14,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290704189] [2022-01-18 23:23:14,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:14,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:14,827 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 23:23:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:14,866 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 23:23:14,866 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 23:23:14,866 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 23:23:14,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-18 23:23:14,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 23:23:14,867 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-18 23:23:14,867 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 23:23:14,867 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-01-18 23:23:14,880 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,880 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,880 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,880 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,880 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,880 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,880 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,880 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,881 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,881 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,881 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,881 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,881 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,881 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,881 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,882 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,886 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,886 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,886 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,886 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,886 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,886 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,886 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,886 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,887 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,887 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,888 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,889 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,889 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,889 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,889 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,889 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,889 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,889 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,889 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,890 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,890 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,890 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,890 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,890 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,890 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,890 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,890 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,890 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:14,892 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 23:23:14,893 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:23:14,894 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 [2022-01-18 23:23:14,894 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 23:23:14,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 102 transitions, 234 flow [2022-01-18 23:23:14,933 INFO L129 PetriNetUnfolder]: 45/383 cut-off events. [2022-01-18 23:23:14,933 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-01-18 23:23:14,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 383 events. 45/383 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1193 event pairs, 1 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 225. Up to 16 conditions per place. [2022-01-18 23:23:14,934 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 102 transitions, 234 flow [2022-01-18 23:23:14,935 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 92 transitions, 214 flow [2022-01-18 23:23:14,941 INFO L129 PetriNetUnfolder]: 6/74 cut-off events. [2022-01-18 23:23:14,942 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:23:14,942 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:14,942 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] [2022-01-18 23:23:14,942 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:14,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:14,942 INFO L85 PathProgramCache]: Analyzing trace with hash -783703138, now seen corresponding path program 1 times [2022-01-18 23:23:14,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:14,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9504655] [2022-01-18 23:23:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:14,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:14,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:14,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:14,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9504655] [2022-01-18 23:23:14,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9504655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:14,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:14,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 23:23:14,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339753464] [2022-01-18 23:23:14,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:14,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 23:23:14,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:14,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 23:23:14,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 23:23:14,964 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 102 [2022-01-18 23:23:14,964 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 92 transitions, 214 flow. Second operand has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 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) [2022-01-18 23:23:14,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:14,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 102 [2022-01-18 23:23:14,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:14,993 INFO L129 PetriNetUnfolder]: 16/282 cut-off events. [2022-01-18 23:23:14,993 INFO L130 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-01-18 23:23:14,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 282 events. 16/282 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 769 event pairs, 1 based on Foata normal form. 21/282 useless extension candidates. Maximal degree in co-relation 179. Up to 16 conditions per place. [2022-01-18 23:23:14,994 INFO L132 encePairwiseOnDemand]: 98/102 looper letters, 6 selfloop transitions, 0 changer transitions 1/88 dead transitions. [2022-01-18 23:23:14,995 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 88 transitions, 218 flow [2022-01-18 23:23:14,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 23:23:14,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-18 23:23:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 190 transitions. [2022-01-18 23:23:14,996 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9313725490196079 [2022-01-18 23:23:14,996 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 190 transitions. [2022-01-18 23:23:14,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 190 transitions. [2022-01-18 23:23:14,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:14,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 190 transitions. [2022-01-18 23:23:14,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 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) [2022-01-18 23:23:14,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2022-01-18 23:23:14,997 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2022-01-18 23:23:14,997 INFO L186 Difference]: Start difference. First operand has 91 places, 92 transitions, 214 flow. Second operand 2 states and 190 transitions. [2022-01-18 23:23:14,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 88 transitions, 218 flow [2022-01-18 23:23:14,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 88 transitions, 218 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:15,001 INFO L242 Difference]: Finished difference. Result has 92 places, 87 transitions, 204 flow [2022-01-18 23:23:15,001 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=204, PETRI_PLACES=92, PETRI_TRANSITIONS=87} [2022-01-18 23:23:15,003 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 1 predicate places. [2022-01-18 23:23:15,004 INFO L470 AbstractCegarLoop]: Abstraction has has 92 places, 87 transitions, 204 flow [2022-01-18 23:23:15,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 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) [2022-01-18 23:23:15,005 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:15,005 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] [2022-01-18 23:23:15,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 23:23:15,006 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:15,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:15,007 INFO L85 PathProgramCache]: Analyzing trace with hash 232883262, now seen corresponding path program 1 times [2022-01-18 23:23:15,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:15,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494453629] [2022-01-18 23:23:15,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:15,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:15,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:15,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494453629] [2022-01-18 23:23:15,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494453629] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:15,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:15,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:23:15,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834058256] [2022-01-18 23:23:15,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:15,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:23:15,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:15,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:23:15,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:23:15,072 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 102 [2022-01-18 23:23:15,073 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 87 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 6 states have internal predecessors, (397), 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) [2022-01-18 23:23:15,073 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:15,073 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 102 [2022-01-18 23:23:15,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:15,168 INFO L129 PetriNetUnfolder]: 15/320 cut-off events. [2022-01-18 23:23:15,168 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-01-18 23:23:15,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 320 events. 15/320 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1092 event pairs, 0 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 510. Up to 103 conditions per place. [2022-01-18 23:23:15,170 INFO L132 encePairwiseOnDemand]: 90/102 looper letters, 37 selfloop transitions, 9 changer transitions 0/102 dead transitions. [2022-01-18 23:23:15,170 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 102 transitions, 335 flow [2022-01-18 23:23:15,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:23:15,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:23:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 433 transitions. [2022-01-18 23:23:15,172 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7075163398692811 [2022-01-18 23:23:15,172 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 433 transitions. [2022-01-18 23:23:15,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 433 transitions. [2022-01-18 23:23:15,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:15,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 433 transitions. [2022-01-18 23:23:15,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 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) [2022-01-18 23:23:15,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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) [2022-01-18 23:23:15,174 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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) [2022-01-18 23:23:15,174 INFO L186 Difference]: Start difference. First operand has 92 places, 87 transitions, 204 flow. Second operand 6 states and 433 transitions. [2022-01-18 23:23:15,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 102 transitions, 335 flow [2022-01-18 23:23:15,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 102 transitions, 335 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:15,176 INFO L242 Difference]: Finished difference. Result has 97 places, 90 transitions, 246 flow [2022-01-18 23:23:15,176 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=246, PETRI_PLACES=97, PETRI_TRANSITIONS=90} [2022-01-18 23:23:15,177 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 6 predicate places. [2022-01-18 23:23:15,177 INFO L470 AbstractCegarLoop]: Abstraction has has 97 places, 90 transitions, 246 flow [2022-01-18 23:23:15,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 6 states have internal predecessors, (397), 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) [2022-01-18 23:23:15,178 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:15,178 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:15,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 23:23:15,178 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:15,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:15,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1470109151, now seen corresponding path program 1 times [2022-01-18 23:23:15,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:15,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913435252] [2022-01-18 23:23:15,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:15,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:15,203 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 23:23:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:15,233 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 23:23:15,233 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 23:23:15,233 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 23:23:15,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-18 23:23:15,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 23:23:15,234 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-18 23:23:15,234 WARN L235 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 23:23:15,234 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-01-18 23:23:15,242 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,242 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,242 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,242 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,242 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,242 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,242 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,242 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,242 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,243 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,243 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,243 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,243 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,243 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,243 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,243 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,244 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,244 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,244 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,244 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,244 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,244 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,244 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,244 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,244 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,244 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,244 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,244 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,245 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,245 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,245 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,245 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,245 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,245 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,245 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,245 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,245 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,245 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,245 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,245 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,246 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,247 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,247 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,247 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,247 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,247 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,247 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,247 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,247 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,248 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,248 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,248 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,248 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,248 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,249 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,249 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,249 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,249 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,249 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,249 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,249 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,249 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,250 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,250 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:15,251 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 23:23:15,252 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:23:15,252 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 [2022-01-18 23:23:15,253 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 23:23:15,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 109 transitions, 262 flow [2022-01-18 23:23:15,294 INFO L129 PetriNetUnfolder]: 91/701 cut-off events. [2022-01-18 23:23:15,295 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-01-18 23:23:15,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 701 events. 91/701 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3012 event pairs, 6 based on Foata normal form. 0/594 useless extension candidates. Maximal degree in co-relation 403. Up to 32 conditions per place. [2022-01-18 23:23:15,297 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 109 transitions, 262 flow [2022-01-18 23:23:15,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 99 transitions, 242 flow [2022-01-18 23:23:15,303 INFO L129 PetriNetUnfolder]: 6/74 cut-off events. [2022-01-18 23:23:15,303 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:23:15,303 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:15,304 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] [2022-01-18 23:23:15,304 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:15,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:15,304 INFO L85 PathProgramCache]: Analyzing trace with hash -888353237, now seen corresponding path program 1 times [2022-01-18 23:23:15,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:15,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303899741] [2022-01-18 23:23:15,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:15,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:15,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:15,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:15,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303899741] [2022-01-18 23:23:15,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303899741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:15,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:15,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 23:23:15,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400103286] [2022-01-18 23:23:15,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:15,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 23:23:15,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:15,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 23:23:15,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 23:23:15,325 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 109 [2022-01-18 23:23:15,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 99 transitions, 242 flow. Second operand has 2 states, 2 states have (on average 96.0) internal successors, (192), 2 states have internal predecessors, (192), 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) [2022-01-18 23:23:15,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:15,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 109 [2022-01-18 23:23:15,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:15,364 INFO L129 PetriNetUnfolder]: 37/503 cut-off events. [2022-01-18 23:23:15,365 INFO L130 PetriNetUnfolder]: For 122/122 co-relation queries the response was YES. [2022-01-18 23:23:15,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 503 events. 37/503 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2010 event pairs, 6 based on Foata normal form. 38/503 useless extension candidates. Maximal degree in co-relation 317. Up to 37 conditions per place. [2022-01-18 23:23:15,367 INFO L132 encePairwiseOnDemand]: 105/109 looper letters, 8 selfloop transitions, 0 changer transitions 1/95 dead transitions. [2022-01-18 23:23:15,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 250 flow [2022-01-18 23:23:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 23:23:15,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-18 23:23:15,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 202 transitions. [2022-01-18 23:23:15,368 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.926605504587156 [2022-01-18 23:23:15,368 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 202 transitions. [2022-01-18 23:23:15,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 202 transitions. [2022-01-18 23:23:15,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:15,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 202 transitions. [2022-01-18 23:23:15,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 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) [2022-01-18 23:23:15,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 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) [2022-01-18 23:23:15,369 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 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) [2022-01-18 23:23:15,369 INFO L186 Difference]: Start difference. First operand has 99 places, 99 transitions, 242 flow. Second operand 2 states and 202 transitions. [2022-01-18 23:23:15,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 95 transitions, 250 flow [2022-01-18 23:23:15,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 95 transitions, 250 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:15,372 INFO L242 Difference]: Finished difference. Result has 100 places, 94 transitions, 232 flow [2022-01-18 23:23:15,372 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=232, PETRI_PLACES=100, PETRI_TRANSITIONS=94} [2022-01-18 23:23:15,373 INFO L334 CegarLoopForPetriNet]: 99 programPoint places, 1 predicate places. [2022-01-18 23:23:15,373 INFO L470 AbstractCegarLoop]: Abstraction has has 100 places, 94 transitions, 232 flow [2022-01-18 23:23:15,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 96.0) internal successors, (192), 2 states have internal predecessors, (192), 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) [2022-01-18 23:23:15,373 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:15,373 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] [2022-01-18 23:23:15,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 23:23:15,373 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:15,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:15,374 INFO L85 PathProgramCache]: Analyzing trace with hash -197363061, now seen corresponding path program 1 times [2022-01-18 23:23:15,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:15,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18675837] [2022-01-18 23:23:15,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:15,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:15,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:15,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:15,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18675837] [2022-01-18 23:23:15,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18675837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:15,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:15,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:23:15,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681349824] [2022-01-18 23:23:15,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:15,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:23:15,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:15,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:23:15,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:23:15,429 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 109 [2022-01-18 23:23:15,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 94 transitions, 232 flow. Second operand has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 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) [2022-01-18 23:23:15,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:15,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 109 [2022-01-18 23:23:15,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:15,536 INFO L129 PetriNetUnfolder]: 38/603 cut-off events. [2022-01-18 23:23:15,536 INFO L130 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2022-01-18 23:23:15,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 987 conditions, 603 events. 38/603 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2859 event pairs, 1 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 980. Up to 218 conditions per place. [2022-01-18 23:23:15,540 INFO L132 encePairwiseOnDemand]: 97/109 looper letters, 40 selfloop transitions, 9 changer transitions 0/110 dead transitions. [2022-01-18 23:23:15,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 110 transitions, 374 flow [2022-01-18 23:23:15,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:23:15,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:23:15,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 466 transitions. [2022-01-18 23:23:15,541 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7125382262996942 [2022-01-18 23:23:15,541 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 466 transitions. [2022-01-18 23:23:15,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 466 transitions. [2022-01-18 23:23:15,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:15,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 466 transitions. [2022-01-18 23:23:15,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 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) [2022-01-18 23:23:15,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2022-01-18 23:23:15,544 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2022-01-18 23:23:15,544 INFO L186 Difference]: Start difference. First operand has 100 places, 94 transitions, 232 flow. Second operand 6 states and 466 transitions. [2022-01-18 23:23:15,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 110 transitions, 374 flow [2022-01-18 23:23:15,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 110 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:15,546 INFO L242 Difference]: Finished difference. Result has 105 places, 97 transitions, 274 flow [2022-01-18 23:23:15,546 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=274, PETRI_PLACES=105, PETRI_TRANSITIONS=97} [2022-01-18 23:23:15,547 INFO L334 CegarLoopForPetriNet]: 99 programPoint places, 6 predicate places. [2022-01-18 23:23:15,547 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 97 transitions, 274 flow [2022-01-18 23:23:15,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 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) [2022-01-18 23:23:15,548 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:15,548 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:15,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 23:23:15,548 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:15,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:15,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1092255810, now seen corresponding path program 1 times [2022-01-18 23:23:15,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:15,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989325162] [2022-01-18 23:23:15,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:15,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:15,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:15,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:15,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989325162] [2022-01-18 23:23:15,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989325162] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:23:15,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973542403] [2022-01-18 23:23:15,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:15,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:15,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:15,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:23:15,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 23:23:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:15,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 23:23:15,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:23:16,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:16,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:23:16,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:16,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973542403] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:23:16,223 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:23:16,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-01-18 23:23:16,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176910661] [2022-01-18 23:23:16,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:23:16,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 23:23:16,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:16,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 23:23:16,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-01-18 23:23:16,226 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 109 [2022-01-18 23:23:16,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 274 flow. Second operand has 20 states, 20 states have (on average 70.6) internal successors, (1412), 20 states have internal predecessors, (1412), 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) [2022-01-18 23:23:16,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:16,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 109 [2022-01-18 23:23:16,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:16,589 INFO L129 PetriNetUnfolder]: 35/583 cut-off events. [2022-01-18 23:23:16,589 INFO L130 PetriNetUnfolder]: For 130/130 co-relation queries the response was YES. [2022-01-18 23:23:16,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1081 conditions, 583 events. 35/583 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2947 event pairs, 2 based on Foata normal form. 2/585 useless extension candidates. Maximal degree in co-relation 1072. Up to 125 conditions per place. [2022-01-18 23:23:16,591 INFO L132 encePairwiseOnDemand]: 94/109 looper letters, 37 selfloop transitions, 20 changer transitions 0/117 dead transitions. [2022-01-18 23:23:16,591 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 117 transitions, 442 flow [2022-01-18 23:23:16,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 23:23:16,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-18 23:23:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 875 transitions. [2022-01-18 23:23:16,593 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.668960244648318 [2022-01-18 23:23:16,593 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 875 transitions. [2022-01-18 23:23:16,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 875 transitions. [2022-01-18 23:23:16,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:16,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 875 transitions. [2022-01-18 23:23:16,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 72.91666666666667) internal successors, (875), 12 states have internal predecessors, (875), 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) [2022-01-18 23:23:16,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 109.0) internal successors, (1417), 13 states have internal predecessors, (1417), 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) [2022-01-18 23:23:16,597 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 109.0) internal successors, (1417), 13 states have internal predecessors, (1417), 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) [2022-01-18 23:23:16,597 INFO L186 Difference]: Start difference. First operand has 105 places, 97 transitions, 274 flow. Second operand 12 states and 875 transitions. [2022-01-18 23:23:16,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 117 transitions, 442 flow [2022-01-18 23:23:16,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 117 transitions, 430 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-18 23:23:16,599 INFO L242 Difference]: Finished difference. Result has 115 places, 105 transitions, 355 flow [2022-01-18 23:23:16,600 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=355, PETRI_PLACES=115, PETRI_TRANSITIONS=105} [2022-01-18 23:23:16,600 INFO L334 CegarLoopForPetriNet]: 99 programPoint places, 16 predicate places. [2022-01-18 23:23:16,600 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 105 transitions, 355 flow [2022-01-18 23:23:16,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 70.6) internal successors, (1412), 20 states have internal predecessors, (1412), 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) [2022-01-18 23:23:16,601 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:16,601 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:16,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 23:23:16,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-01-18 23:23:16,810 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:16,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:16,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1090444432, now seen corresponding path program 1 times [2022-01-18 23:23:16,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:16,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872589939] [2022-01-18 23:23:16,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:16,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:16,831 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 23:23:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:16,856 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 23:23:16,856 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 23:23:16,857 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 23:23:16,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-18 23:23:16,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 23:23:16,857 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-18 23:23:16,857 WARN L235 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 23:23:16,857 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-01-18 23:23:16,867 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,867 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,867 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,867 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,867 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,867 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,867 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,867 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,867 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,867 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,867 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,867 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,868 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,868 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,868 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,868 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,868 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,868 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,868 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,869 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,870 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,871 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,871 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,871 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,871 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,871 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,871 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,871 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,871 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,871 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,871 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,871 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,871 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,872 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,872 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,872 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,872 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,872 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,872 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,872 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,872 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,872 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,872 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,873 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,874 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,874 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,874 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,874 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,874 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:16,875 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-01-18 23:23:16,877 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:23:16,877 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 [2022-01-18 23:23:16,877 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 23:23:16,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 116 transitions, 292 flow [2022-01-18 23:23:16,972 INFO L129 PetriNetUnfolder]: 189/1327 cut-off events. [2022-01-18 23:23:16,973 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2022-01-18 23:23:16,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 1327 events. 189/1327 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7613 event pairs, 23 based on Foata normal form. 0/1122 useless extension candidates. Maximal degree in co-relation 746. Up to 80 conditions per place. [2022-01-18 23:23:16,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 116 transitions, 292 flow [2022-01-18 23:23:16,978 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 106 transitions, 272 flow [2022-01-18 23:23:16,981 INFO L129 PetriNetUnfolder]: 6/74 cut-off events. [2022-01-18 23:23:16,981 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:23:16,981 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:16,981 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] [2022-01-18 23:23:16,981 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:16,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:16,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1138952928, now seen corresponding path program 1 times [2022-01-18 23:23:16,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:16,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89532909] [2022-01-18 23:23:16,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:16,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:16,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:16,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89532909] [2022-01-18 23:23:16,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89532909] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:16,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:16,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 23:23:16,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065127099] [2022-01-18 23:23:16,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:16,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 23:23:16,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:16,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 23:23:16,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 23:23:16,997 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 116 [2022-01-18 23:23:16,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 106 transitions, 272 flow. Second operand has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 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) [2022-01-18 23:23:16,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:16,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 116 [2022-01-18 23:23:16,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:17,066 INFO L129 PetriNetUnfolder]: 86/936 cut-off events. [2022-01-18 23:23:17,066 INFO L130 PetriNetUnfolder]: For 285/285 co-relation queries the response was YES. [2022-01-18 23:23:17,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1133 conditions, 936 events. 86/936 cut-off events. For 285/285 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4964 event pairs, 23 based on Foata normal form. 71/936 useless extension candidates. Maximal degree in co-relation 584. Up to 86 conditions per place. [2022-01-18 23:23:17,070 INFO L132 encePairwiseOnDemand]: 112/116 looper letters, 10 selfloop transitions, 0 changer transitions 1/102 dead transitions. [2022-01-18 23:23:17,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 102 transitions, 284 flow [2022-01-18 23:23:17,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 23:23:17,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-18 23:23:17,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 214 transitions. [2022-01-18 23:23:17,071 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9224137931034483 [2022-01-18 23:23:17,072 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 214 transitions. [2022-01-18 23:23:17,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 214 transitions. [2022-01-18 23:23:17,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:17,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 214 transitions. [2022-01-18 23:23:17,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2022-01-18 23:23:17,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2022-01-18 23:23:17,073 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2022-01-18 23:23:17,073 INFO L186 Difference]: Start difference. First operand has 107 places, 106 transitions, 272 flow. Second operand 2 states and 214 transitions. [2022-01-18 23:23:17,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 102 transitions, 284 flow [2022-01-18 23:23:17,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 102 transitions, 284 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:17,074 INFO L242 Difference]: Finished difference. Result has 108 places, 101 transitions, 262 flow [2022-01-18 23:23:17,075 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=262, PETRI_PLACES=108, PETRI_TRANSITIONS=101} [2022-01-18 23:23:17,076 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 1 predicate places. [2022-01-18 23:23:17,076 INFO L470 AbstractCegarLoop]: Abstraction has has 108 places, 101 transitions, 262 flow [2022-01-18 23:23:17,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 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) [2022-01-18 23:23:17,076 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:17,076 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] [2022-01-18 23:23:17,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 23:23:17,076 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:17,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:17,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1009870209, now seen corresponding path program 1 times [2022-01-18 23:23:17,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:17,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795323740] [2022-01-18 23:23:17,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:17,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:17,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:17,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:17,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795323740] [2022-01-18 23:23:17,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795323740] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:17,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:17,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:23:17,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780441325] [2022-01-18 23:23:17,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:17,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:23:17,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:17,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:23:17,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:23:17,122 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 116 [2022-01-18 23:23:17,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 101 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 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) [2022-01-18 23:23:17,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:17,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 116 [2022-01-18 23:23:17,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:17,258 INFO L129 PetriNetUnfolder]: 90/1150 cut-off events. [2022-01-18 23:23:17,258 INFO L130 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2022-01-18 23:23:17,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1903 conditions, 1150 events. 90/1150 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7075 event pairs, 7 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 1895. Up to 450 conditions per place. [2022-01-18 23:23:17,263 INFO L132 encePairwiseOnDemand]: 104/116 looper letters, 43 selfloop transitions, 9 changer transitions 0/118 dead transitions. [2022-01-18 23:23:17,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 118 transitions, 415 flow [2022-01-18 23:23:17,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:23:17,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:23:17,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2022-01-18 23:23:17,265 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7169540229885057 [2022-01-18 23:23:17,265 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 499 transitions. [2022-01-18 23:23:17,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 499 transitions. [2022-01-18 23:23:17,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:17,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 499 transitions. [2022-01-18 23:23:17,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 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) [2022-01-18 23:23:17,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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) [2022-01-18 23:23:17,267 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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) [2022-01-18 23:23:17,267 INFO L186 Difference]: Start difference. First operand has 108 places, 101 transitions, 262 flow. Second operand 6 states and 499 transitions. [2022-01-18 23:23:17,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 118 transitions, 415 flow [2022-01-18 23:23:17,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 118 transitions, 415 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:17,270 INFO L242 Difference]: Finished difference. Result has 113 places, 104 transitions, 304 flow [2022-01-18 23:23:17,270 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=304, PETRI_PLACES=113, PETRI_TRANSITIONS=104} [2022-01-18 23:23:17,270 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 6 predicate places. [2022-01-18 23:23:17,270 INFO L470 AbstractCegarLoop]: Abstraction has has 113 places, 104 transitions, 304 flow [2022-01-18 23:23:17,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 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) [2022-01-18 23:23:17,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:17,270 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:17,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 23:23:17,271 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:17,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:17,271 INFO L85 PathProgramCache]: Analyzing trace with hash -796867189, now seen corresponding path program 1 times [2022-01-18 23:23:17,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:17,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296489673] [2022-01-18 23:23:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:17,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:17,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:17,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:17,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296489673] [2022-01-18 23:23:17,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296489673] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:23:17,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971272322] [2022-01-18 23:23:17,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:17,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:17,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:17,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:23:17,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 23:23:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:17,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 23:23:17,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:23:17,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:17,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:23:17,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:17,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971272322] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:23:17,772 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:23:17,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-01-18 23:23:17,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668628176] [2022-01-18 23:23:17,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:23:17,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 23:23:17,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:17,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 23:23:17,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-01-18 23:23:17,774 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 116 [2022-01-18 23:23:17,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 104 transitions, 304 flow. Second operand has 20 states, 20 states have (on average 75.6) internal successors, (1512), 20 states have internal predecessors, (1512), 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) [2022-01-18 23:23:17,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:17,776 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 116 [2022-01-18 23:23:17,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:18,189 INFO L129 PetriNetUnfolder]: 87/1130 cut-off events. [2022-01-18 23:23:18,189 INFO L130 PetriNetUnfolder]: For 276/276 co-relation queries the response was YES. [2022-01-18 23:23:18,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2122 conditions, 1130 events. 87/1130 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 7284 event pairs, 8 based on Foata normal form. 2/1132 useless extension candidates. Maximal degree in co-relation 2112. Up to 271 conditions per place. [2022-01-18 23:23:18,195 INFO L132 encePairwiseOnDemand]: 101/116 looper letters, 40 selfloop transitions, 20 changer transitions 0/125 dead transitions. [2022-01-18 23:23:18,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 125 transitions, 483 flow [2022-01-18 23:23:18,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 23:23:18,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-18 23:23:18,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 938 transitions. [2022-01-18 23:23:18,198 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6738505747126436 [2022-01-18 23:23:18,198 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 938 transitions. [2022-01-18 23:23:18,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 938 transitions. [2022-01-18 23:23:18,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:18,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 938 transitions. [2022-01-18 23:23:18,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 78.16666666666667) internal successors, (938), 12 states have internal predecessors, (938), 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) [2022-01-18 23:23:18,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 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) [2022-01-18 23:23:18,201 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 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) [2022-01-18 23:23:18,201 INFO L186 Difference]: Start difference. First operand has 113 places, 104 transitions, 304 flow. Second operand 12 states and 938 transitions. [2022-01-18 23:23:18,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 125 transitions, 483 flow [2022-01-18 23:23:18,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 125 transitions, 471 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-18 23:23:18,205 INFO L242 Difference]: Finished difference. Result has 123 places, 112 transitions, 385 flow [2022-01-18 23:23:18,205 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=385, PETRI_PLACES=123, PETRI_TRANSITIONS=112} [2022-01-18 23:23:18,206 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 16 predicate places. [2022-01-18 23:23:18,206 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 112 transitions, 385 flow [2022-01-18 23:23:18,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 75.6) internal successors, (1512), 20 states have internal predecessors, (1512), 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) [2022-01-18 23:23:18,206 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:18,206 INFO L254 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:18,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 23:23:18,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-01-18 23:23:18,419 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:18,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:18,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1793274580, now seen corresponding path program 1 times [2022-01-18 23:23:18,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:18,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438659599] [2022-01-18 23:23:18,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:18,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:18,432 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 23:23:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:18,445 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 23:23:18,445 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 23:23:18,446 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 23:23:18,446 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-18 23:23:18,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 23:23:18,446 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-18 23:23:18,446 WARN L235 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 23:23:18,446 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2022-01-18 23:23:18,451 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,451 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,451 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,451 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,452 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,453 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,454 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,455 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,456 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,456 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,456 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,456 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,456 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,456 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,456 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,456 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,456 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,456 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,456 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,456 WARN L322 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,457 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,458 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,458 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,458 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,458 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,458 WARN L322 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,458 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,458 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,458 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,458 WARN L322 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,458 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:18,459 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-01-18 23:23:18,460 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:23:18,460 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 [2022-01-18 23:23:18,460 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 23:23:18,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 123 transitions, 324 flow [2022-01-18 23:23:18,612 INFO L129 PetriNetUnfolder]: 399/2577 cut-off events. [2022-01-18 23:23:18,612 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2022-01-18 23:23:18,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2809 conditions, 2577 events. 399/2577 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 18391 event pairs, 72 based on Foata normal form. 0/2178 useless extension candidates. Maximal degree in co-relation 1426. Up to 192 conditions per place. [2022-01-18 23:23:18,620 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 123 transitions, 324 flow [2022-01-18 23:23:18,625 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 113 transitions, 304 flow [2022-01-18 23:23:18,628 INFO L129 PetriNetUnfolder]: 6/74 cut-off events. [2022-01-18 23:23:18,628 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:23:18,628 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:18,628 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] [2022-01-18 23:23:18,628 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:18,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:18,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1073742714, now seen corresponding path program 1 times [2022-01-18 23:23:18,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:18,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172553221] [2022-01-18 23:23:18,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:18,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:18,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:18,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:18,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172553221] [2022-01-18 23:23:18,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172553221] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:18,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:18,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 23:23:18,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840509720] [2022-01-18 23:23:18,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:18,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 23:23:18,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:18,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 23:23:18,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 23:23:18,639 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 123 [2022-01-18 23:23:18,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 113 transitions, 304 flow. Second operand has 2 states, 2 states have (on average 106.0) internal successors, (212), 2 states have internal predecessors, (212), 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) [2022-01-18 23:23:18,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:18,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 123 [2022-01-18 23:23:18,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:18,795 INFO L129 PetriNetUnfolder]: 199/1801 cut-off events. [2022-01-18 23:23:18,795 INFO L130 PetriNetUnfolder]: For 647/647 co-relation queries the response was YES. [2022-01-18 23:23:18,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2232 conditions, 1801 events. 199/1801 cut-off events. For 647/647 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 12225 event pairs, 72 based on Foata normal form. 136/1801 useless extension candidates. Maximal degree in co-relation 1120. Up to 199 conditions per place. [2022-01-18 23:23:18,804 INFO L132 encePairwiseOnDemand]: 119/123 looper letters, 12 selfloop transitions, 0 changer transitions 1/109 dead transitions. [2022-01-18 23:23:18,804 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 109 transitions, 320 flow [2022-01-18 23:23:18,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 23:23:18,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-18 23:23:18,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 226 transitions. [2022-01-18 23:23:18,805 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9186991869918699 [2022-01-18 23:23:18,805 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 226 transitions. [2022-01-18 23:23:18,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 226 transitions. [2022-01-18 23:23:18,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:18,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 226 transitions. [2022-01-18 23:23:18,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 113.0) internal successors, (226), 2 states have internal predecessors, (226), 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) [2022-01-18 23:23:18,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2022-01-18 23:23:18,806 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2022-01-18 23:23:18,806 INFO L186 Difference]: Start difference. First operand has 115 places, 113 transitions, 304 flow. Second operand 2 states and 226 transitions. [2022-01-18 23:23:18,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 109 transitions, 320 flow [2022-01-18 23:23:18,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 109 transitions, 320 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:18,808 INFO L242 Difference]: Finished difference. Result has 116 places, 108 transitions, 294 flow [2022-01-18 23:23:18,808 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=294, PETRI_PLACES=116, PETRI_TRANSITIONS=108} [2022-01-18 23:23:18,809 INFO L334 CegarLoopForPetriNet]: 115 programPoint places, 1 predicate places. [2022-01-18 23:23:18,809 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 108 transitions, 294 flow [2022-01-18 23:23:18,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 106.0) internal successors, (212), 2 states have internal predecessors, (212), 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) [2022-01-18 23:23:18,809 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:18,809 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] [2022-01-18 23:23:18,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 23:23:18,810 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:18,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:18,810 INFO L85 PathProgramCache]: Analyzing trace with hash 2090329114, now seen corresponding path program 1 times [2022-01-18 23:23:18,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:18,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293169538] [2022-01-18 23:23:18,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:18,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:18,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:18,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:18,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293169538] [2022-01-18 23:23:18,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293169538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:18,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:18,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:23:18,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671482547] [2022-01-18 23:23:18,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:18,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:23:18,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:18,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:23:18,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:23:18,850 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 123 [2022-01-18 23:23:18,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 108 transitions, 294 flow. Second operand has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2022-01-18 23:23:18,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:18,851 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 123 [2022-01-18 23:23:18,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:19,067 INFO L129 PetriNetUnfolder]: 207/2229 cut-off events. [2022-01-18 23:23:19,067 INFO L130 PetriNetUnfolder]: For 257/257 co-relation queries the response was YES. [2022-01-18 23:23:19,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3724 conditions, 2229 events. 207/2229 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 16900 event pairs, 30 based on Foata normal form. 0/2097 useless extension candidates. Maximal degree in co-relation 3715. Up to 923 conditions per place. [2022-01-18 23:23:19,079 INFO L132 encePairwiseOnDemand]: 111/123 looper letters, 46 selfloop transitions, 9 changer transitions 0/126 dead transitions. [2022-01-18 23:23:19,080 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 126 transitions, 458 flow [2022-01-18 23:23:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:23:19,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:23:19,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2022-01-18 23:23:19,081 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7208672086720868 [2022-01-18 23:23:19,081 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 532 transitions. [2022-01-18 23:23:19,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 532 transitions. [2022-01-18 23:23:19,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:19,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 532 transitions. [2022-01-18 23:23:19,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 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) [2022-01-18 23:23:19,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 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) [2022-01-18 23:23:19,084 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 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) [2022-01-18 23:23:19,084 INFO L186 Difference]: Start difference. First operand has 116 places, 108 transitions, 294 flow. Second operand 6 states and 532 transitions. [2022-01-18 23:23:19,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 126 transitions, 458 flow [2022-01-18 23:23:19,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 126 transitions, 458 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:19,086 INFO L242 Difference]: Finished difference. Result has 121 places, 111 transitions, 336 flow [2022-01-18 23:23:19,086 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=336, PETRI_PLACES=121, PETRI_TRANSITIONS=111} [2022-01-18 23:23:19,087 INFO L334 CegarLoopForPetriNet]: 115 programPoint places, 6 predicate places. [2022-01-18 23:23:19,087 INFO L470 AbstractCegarLoop]: Abstraction has has 121 places, 111 transitions, 336 flow [2022-01-18 23:23:19,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2022-01-18 23:23:19,087 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:19,087 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:19,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 23:23:19,087 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:19,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:19,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1136105305, now seen corresponding path program 1 times [2022-01-18 23:23:19,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:19,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744152685] [2022-01-18 23:23:19,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:19,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:19,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:19,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:19,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744152685] [2022-01-18 23:23:19,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744152685] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:23:19,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431797603] [2022-01-18 23:23:19,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:19,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:19,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:19,147 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:23:19,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 23:23:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:19,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 23:23:19,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:23:19,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:19,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:23:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:19,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431797603] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:23:19,559 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:23:19,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-01-18 23:23:19,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998111958] [2022-01-18 23:23:19,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:23:19,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 23:23:19,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:19,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 23:23:19,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-01-18 23:23:19,561 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 123 [2022-01-18 23:23:19,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 111 transitions, 336 flow. Second operand has 20 states, 20 states have (on average 80.6) internal successors, (1612), 20 states have internal predecessors, (1612), 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) [2022-01-18 23:23:19,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:19,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 123 [2022-01-18 23:23:19,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:20,038 INFO L129 PetriNetUnfolder]: 204/2209 cut-off events. [2022-01-18 23:23:20,038 INFO L130 PetriNetUnfolder]: For 573/573 co-relation queries the response was YES. [2022-01-18 23:23:20,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4182 conditions, 2209 events. 204/2209 cut-off events. For 573/573 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 17141 event pairs, 31 based on Foata normal form. 2/2211 useless extension candidates. Maximal degree in co-relation 4171. Up to 577 conditions per place. [2022-01-18 23:23:20,051 INFO L132 encePairwiseOnDemand]: 108/123 looper letters, 43 selfloop transitions, 20 changer transitions 0/133 dead transitions. [2022-01-18 23:23:20,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 133 transitions, 526 flow [2022-01-18 23:23:20,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 23:23:20,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-18 23:23:20,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1001 transitions. [2022-01-18 23:23:20,053 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6781842818428184 [2022-01-18 23:23:20,053 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1001 transitions. [2022-01-18 23:23:20,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1001 transitions. [2022-01-18 23:23:20,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:20,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1001 transitions. [2022-01-18 23:23:20,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 83.41666666666667) internal successors, (1001), 12 states have internal predecessors, (1001), 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) [2022-01-18 23:23:20,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 123.0) internal successors, (1599), 13 states have internal predecessors, (1599), 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) [2022-01-18 23:23:20,058 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 123.0) internal successors, (1599), 13 states have internal predecessors, (1599), 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) [2022-01-18 23:23:20,058 INFO L186 Difference]: Start difference. First operand has 121 places, 111 transitions, 336 flow. Second operand 12 states and 1001 transitions. [2022-01-18 23:23:20,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 133 transitions, 526 flow [2022-01-18 23:23:20,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 133 transitions, 514 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-18 23:23:20,061 INFO L242 Difference]: Finished difference. Result has 131 places, 119 transitions, 417 flow [2022-01-18 23:23:20,061 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=417, PETRI_PLACES=131, PETRI_TRANSITIONS=119} [2022-01-18 23:23:20,061 INFO L334 CegarLoopForPetriNet]: 115 programPoint places, 16 predicate places. [2022-01-18 23:23:20,061 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 119 transitions, 417 flow [2022-01-18 23:23:20,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 80.6) internal successors, (1612), 20 states have internal predecessors, (1612), 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) [2022-01-18 23:23:20,062 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:20,062 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:20,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 23:23:20,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:20,279 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:20,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:20,279 INFO L85 PathProgramCache]: Analyzing trace with hash -86842844, now seen corresponding path program 1 times [2022-01-18 23:23:20,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:20,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780659285] [2022-01-18 23:23:20,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:20,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:20,353 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:23:20,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:20,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780659285] [2022-01-18 23:23:20,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780659285] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:23:20,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712333476] [2022-01-18 23:23:20,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:20,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:20,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:20,354 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:23:20,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 23:23:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:20,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 23:23:20,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:23:20,648 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:23:20,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:23:20,820 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:23:20,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712333476] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:23:20,821 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:23:20,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-01-18 23:23:20,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560140318] [2022-01-18 23:23:20,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:23:20,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 23:23:20,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:20,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 23:23:20,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-01-18 23:23:20,823 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 123 [2022-01-18 23:23:20,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 119 transitions, 417 flow. Second operand has 21 states, 21 states have (on average 84.57142857142857) internal successors, (1776), 21 states have internal predecessors, (1776), 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) [2022-01-18 23:23:20,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:20,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 123 [2022-01-18 23:23:20,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:21,287 INFO L129 PetriNetUnfolder]: 209/1895 cut-off events. [2022-01-18 23:23:21,287 INFO L130 PetriNetUnfolder]: For 1240/1240 co-relation queries the response was YES. [2022-01-18 23:23:21,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4470 conditions, 1895 events. 209/1895 cut-off events. For 1240/1240 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 14149 event pairs, 8 based on Foata normal form. 52/1947 useless extension candidates. Maximal degree in co-relation 4456. Up to 491 conditions per place. [2022-01-18 23:23:21,301 INFO L132 encePairwiseOnDemand]: 108/123 looper letters, 45 selfloop transitions, 29 changer transitions 0/146 dead transitions. [2022-01-18 23:23:21,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 146 transitions, 673 flow [2022-01-18 23:23:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 23:23:21,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-18 23:23:21,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1939 transitions. [2022-01-18 23:23:21,306 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6854012018381054 [2022-01-18 23:23:21,306 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1939 transitions. [2022-01-18 23:23:21,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1939 transitions. [2022-01-18 23:23:21,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:21,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1939 transitions. [2022-01-18 23:23:21,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 84.30434782608695) internal successors, (1939), 23 states have internal predecessors, (1939), 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) [2022-01-18 23:23:21,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 123.0) internal successors, (2952), 24 states have internal predecessors, (2952), 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) [2022-01-18 23:23:21,315 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 123.0) internal successors, (2952), 24 states have internal predecessors, (2952), 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) [2022-01-18 23:23:21,315 INFO L186 Difference]: Start difference. First operand has 131 places, 119 transitions, 417 flow. Second operand 23 states and 1939 transitions. [2022-01-18 23:23:21,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 146 transitions, 673 flow [2022-01-18 23:23:21,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 146 transitions, 652 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-01-18 23:23:21,321 INFO L242 Difference]: Finished difference. Result has 150 places, 127 transitions, 497 flow [2022-01-18 23:23:21,321 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=497, PETRI_PLACES=150, PETRI_TRANSITIONS=127} [2022-01-18 23:23:21,322 INFO L334 CegarLoopForPetriNet]: 115 programPoint places, 35 predicate places. [2022-01-18 23:23:21,322 INFO L470 AbstractCegarLoop]: Abstraction has has 150 places, 127 transitions, 497 flow [2022-01-18 23:23:21,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 84.57142857142857) internal successors, (1776), 21 states have internal predecessors, (1776), 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) [2022-01-18 23:23:21,322 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:21,323 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:21,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 23:23:21,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:21,535 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:21,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1969581107, now seen corresponding path program 1 times [2022-01-18 23:23:21,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:21,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817608310] [2022-01-18 23:23:21,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:21,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:21,555 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 23:23:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:21,579 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 23:23:21,580 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 23:23:21,580 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 23:23:21,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-18 23:23:21,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 23:23:21,581 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-18 23:23:21,581 WARN L235 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 23:23:21,581 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2022-01-18 23:23:21,588 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,589 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,590 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,591 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,592 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,592 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,592 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,592 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,592 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,592 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,592 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,592 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,592 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,592 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,592 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,595 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,595 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,596 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,597 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,598 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,598 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,598 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,598 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,598 WARN L322 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,598 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,598 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,598 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,599 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,599 WARN L322 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,599 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,599 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,599 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,599 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,599 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,599 WARN L322 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,600 WARN L322 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,601 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,601 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,601 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,601 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,601 WARN L322 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:21,603 INFO L148 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-01-18 23:23:21,604 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:23:21,604 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 [2022-01-18 23:23:21,604 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 23:23:21,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 132 places, 130 transitions, 358 flow [2022-01-18 23:23:21,952 INFO L129 PetriNetUnfolder]: 849/5091 cut-off events. [2022-01-18 23:23:21,952 INFO L130 PetriNetUnfolder]: For 525/525 co-relation queries the response was YES. [2022-01-18 23:23:21,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5589 conditions, 5091 events. 849/5091 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 44321 event pairs, 201 based on Foata normal form. 0/4306 useless extension candidates. Maximal degree in co-relation 2795. Up to 448 conditions per place. [2022-01-18 23:23:21,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 130 transitions, 358 flow [2022-01-18 23:23:21,985 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 120 transitions, 338 flow [2022-01-18 23:23:21,988 INFO L129 PetriNetUnfolder]: 6/74 cut-off events. [2022-01-18 23:23:21,988 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:23:21,988 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:21,988 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] [2022-01-18 23:23:21,989 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:21,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:21,989 INFO L85 PathProgramCache]: Analyzing trace with hash -177689860, now seen corresponding path program 1 times [2022-01-18 23:23:21,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:21,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502896138] [2022-01-18 23:23:21,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:21,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:21,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:22,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:22,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502896138] [2022-01-18 23:23:22,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502896138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:22,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:22,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 23:23:22,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785360800] [2022-01-18 23:23:22,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:22,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 23:23:22,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:22,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 23:23:22,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 23:23:22,001 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 130 [2022-01-18 23:23:22,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 120 transitions, 338 flow. Second operand has 2 states, 2 states have (on average 111.0) internal successors, (222), 2 states have internal predecessors, (222), 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) [2022-01-18 23:23:22,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:22,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 130 [2022-01-18 23:23:22,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:22,258 INFO L129 PetriNetUnfolder]: 456/3546 cut-off events. [2022-01-18 23:23:22,258 INFO L130 PetriNetUnfolder]: For 1449/1449 co-relation queries the response was YES. [2022-01-18 23:23:22,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4500 conditions, 3546 events. 456/3546 cut-off events. For 1449/1449 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 29289 event pairs, 201 based on Foata normal form. 265/3546 useless extension candidates. Maximal degree in co-relation 2217. Up to 456 conditions per place. [2022-01-18 23:23:22,273 INFO L132 encePairwiseOnDemand]: 126/130 looper letters, 14 selfloop transitions, 0 changer transitions 1/116 dead transitions. [2022-01-18 23:23:22,273 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 116 transitions, 358 flow [2022-01-18 23:23:22,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 23:23:22,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-18 23:23:22,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 238 transitions. [2022-01-18 23:23:22,273 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9153846153846154 [2022-01-18 23:23:22,274 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 238 transitions. [2022-01-18 23:23:22,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 238 transitions. [2022-01-18 23:23:22,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:22,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 238 transitions. [2022-01-18 23:23:22,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 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) [2022-01-18 23:23:22,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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) [2022-01-18 23:23:22,275 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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) [2022-01-18 23:23:22,275 INFO L186 Difference]: Start difference. First operand has 123 places, 120 transitions, 338 flow. Second operand 2 states and 238 transitions. [2022-01-18 23:23:22,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 116 transitions, 358 flow [2022-01-18 23:23:22,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 116 transitions, 358 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:22,277 INFO L242 Difference]: Finished difference. Result has 124 places, 115 transitions, 328 flow [2022-01-18 23:23:22,277 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=328, PETRI_PLACES=124, PETRI_TRANSITIONS=115} [2022-01-18 23:23:22,277 INFO L334 CegarLoopForPetriNet]: 123 programPoint places, 1 predicate places. [2022-01-18 23:23:22,277 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 115 transitions, 328 flow [2022-01-18 23:23:22,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 111.0) internal successors, (222), 2 states have internal predecessors, (222), 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) [2022-01-18 23:23:22,277 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:22,277 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] [2022-01-18 23:23:22,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 23:23:22,278 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:22,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:22,278 INFO L85 PathProgramCache]: Analyzing trace with hash 513300316, now seen corresponding path program 1 times [2022-01-18 23:23:22,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:22,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714372987] [2022-01-18 23:23:22,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:22,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:22,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:22,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:22,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714372987] [2022-01-18 23:23:22,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714372987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:22,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:22,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:23:22,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438656549] [2022-01-18 23:23:22,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:22,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:23:22,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:22,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:23:22,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:23:22,310 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 130 [2022-01-18 23:23:22,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 115 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2022-01-18 23:23:22,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:22,310 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 130 [2022-01-18 23:23:22,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:22,743 INFO L129 PetriNetUnfolder]: 469/4384 cut-off events. [2022-01-18 23:23:22,743 INFO L130 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2022-01-18 23:23:22,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7394 conditions, 4384 events. 469/4384 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 39826 event pairs, 102 based on Foata normal form. 0/4123 useless extension candidates. Maximal degree in co-relation 7384. Up to 1893 conditions per place. [2022-01-18 23:23:22,761 INFO L132 encePairwiseOnDemand]: 118/130 looper letters, 49 selfloop transitions, 9 changer transitions 0/134 dead transitions. [2022-01-18 23:23:22,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 134 transitions, 503 flow [2022-01-18 23:23:22,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:23:22,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:23:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 565 transitions. [2022-01-18 23:23:22,762 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7243589743589743 [2022-01-18 23:23:22,762 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 565 transitions. [2022-01-18 23:23:22,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 565 transitions. [2022-01-18 23:23:22,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:22,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 565 transitions. [2022-01-18 23:23:22,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.16666666666667) internal successors, (565), 6 states have internal predecessors, (565), 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) [2022-01-18 23:23:22,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 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) [2022-01-18 23:23:22,764 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 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) [2022-01-18 23:23:22,764 INFO L186 Difference]: Start difference. First operand has 124 places, 115 transitions, 328 flow. Second operand 6 states and 565 transitions. [2022-01-18 23:23:22,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 134 transitions, 503 flow [2022-01-18 23:23:22,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 134 transitions, 503 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:22,767 INFO L242 Difference]: Finished difference. Result has 129 places, 118 transitions, 370 flow [2022-01-18 23:23:22,767 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=370, PETRI_PLACES=129, PETRI_TRANSITIONS=118} [2022-01-18 23:23:22,768 INFO L334 CegarLoopForPetriNet]: 123 programPoint places, 6 predicate places. [2022-01-18 23:23:22,768 INFO L470 AbstractCegarLoop]: Abstraction has has 129 places, 118 transitions, 370 flow [2022-01-18 23:23:22,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2022-01-18 23:23:22,768 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:22,768 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:22,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 23:23:22,768 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:22,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:22,769 INFO L85 PathProgramCache]: Analyzing trace with hash -199260274, now seen corresponding path program 1 times [2022-01-18 23:23:22,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:22,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169778277] [2022-01-18 23:23:22,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:22,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:22,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:22,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:22,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169778277] [2022-01-18 23:23:22,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169778277] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:23:22,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249345713] [2022-01-18 23:23:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:22,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:22,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:22,830 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:23:22,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 23:23:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:22,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 23:23:22,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:23:23,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:23,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:23:23,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:23,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249345713] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:23:23,251 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:23:23,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-01-18 23:23:23,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508518559] [2022-01-18 23:23:23,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:23:23,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 23:23:23,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:23,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 23:23:23,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-01-18 23:23:23,253 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 130 [2022-01-18 23:23:23,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 118 transitions, 370 flow. Second operand has 20 states, 20 states have (on average 85.6) internal successors, (1712), 20 states have internal predecessors, (1712), 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) [2022-01-18 23:23:23,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:23,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 130 [2022-01-18 23:23:23,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:23,934 INFO L129 PetriNetUnfolder]: 466/4364 cut-off events. [2022-01-18 23:23:23,935 INFO L130 PetriNetUnfolder]: For 1182/1182 co-relation queries the response was YES. [2022-01-18 23:23:23,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8317 conditions, 4364 events. 466/4364 cut-off events. For 1182/1182 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 40048 event pairs, 103 based on Foata normal form. 2/4366 useless extension candidates. Maximal degree in co-relation 8305. Up to 1219 conditions per place. [2022-01-18 23:23:23,958 INFO L132 encePairwiseOnDemand]: 115/130 looper letters, 46 selfloop transitions, 20 changer transitions 0/141 dead transitions. [2022-01-18 23:23:23,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 141 transitions, 571 flow [2022-01-18 23:23:23,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 23:23:23,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-18 23:23:23,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1064 transitions. [2022-01-18 23:23:23,960 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6820512820512821 [2022-01-18 23:23:23,960 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1064 transitions. [2022-01-18 23:23:23,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1064 transitions. [2022-01-18 23:23:23,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:23,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1064 transitions. [2022-01-18 23:23:23,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 88.66666666666667) internal successors, (1064), 12 states have internal predecessors, (1064), 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) [2022-01-18 23:23:23,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 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) [2022-01-18 23:23:23,964 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 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) [2022-01-18 23:23:23,964 INFO L186 Difference]: Start difference. First operand has 129 places, 118 transitions, 370 flow. Second operand 12 states and 1064 transitions. [2022-01-18 23:23:23,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 141 transitions, 571 flow [2022-01-18 23:23:23,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 141 transitions, 559 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-18 23:23:23,968 INFO L242 Difference]: Finished difference. Result has 139 places, 126 transitions, 451 flow [2022-01-18 23:23:23,968 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=451, PETRI_PLACES=139, PETRI_TRANSITIONS=126} [2022-01-18 23:23:23,968 INFO L334 CegarLoopForPetriNet]: 123 programPoint places, 16 predicate places. [2022-01-18 23:23:23,968 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 126 transitions, 451 flow [2022-01-18 23:23:23,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 85.6) internal successors, (1712), 20 states have internal predecessors, (1712), 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) [2022-01-18 23:23:23,969 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:23,969 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:23,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 23:23:24,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-01-18 23:23:24,185 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:24,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:24,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1937108701, now seen corresponding path program 1 times [2022-01-18 23:23:24,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:24,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118950247] [2022-01-18 23:23:24,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:24,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:24,262 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:23:24,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:24,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118950247] [2022-01-18 23:23:24,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118950247] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:23:24,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963371005] [2022-01-18 23:23:24,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:24,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:24,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:24,263 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:23:24,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 23:23:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:24,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 23:23:24,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:23:24,531 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:23:24,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:23:24,710 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:23:24,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963371005] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:23:24,711 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:23:24,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-01-18 23:23:24,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973132004] [2022-01-18 23:23:24,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:23:24,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 23:23:24,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:24,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 23:23:24,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-01-18 23:23:24,713 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 130 [2022-01-18 23:23:24,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 126 transitions, 451 flow. Second operand has 21 states, 21 states have (on average 89.57142857142857) internal successors, (1881), 21 states have internal predecessors, (1881), 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) [2022-01-18 23:23:24,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:24,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 130 [2022-01-18 23:23:24,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:25,411 INFO L129 PetriNetUnfolder]: 488/4012 cut-off events. [2022-01-18 23:23:25,411 INFO L130 PetriNetUnfolder]: For 2645/2645 co-relation queries the response was YES. [2022-01-18 23:23:25,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9401 conditions, 4012 events. 488/4012 cut-off events. For 2645/2645 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 36779 event pairs, 38 based on Foata normal form. 80/4092 useless extension candidates. Maximal degree in co-relation 9386. Up to 1124 conditions per place. [2022-01-18 23:23:25,435 INFO L132 encePairwiseOnDemand]: 115/130 looper letters, 49 selfloop transitions, 29 changer transitions 0/155 dead transitions. [2022-01-18 23:23:25,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 155 transitions, 725 flow [2022-01-18 23:23:25,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 23:23:25,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-18 23:23:25,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2058 transitions. [2022-01-18 23:23:25,438 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6882943143812709 [2022-01-18 23:23:25,438 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2058 transitions. [2022-01-18 23:23:25,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2058 transitions. [2022-01-18 23:23:25,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:25,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2058 transitions. [2022-01-18 23:23:25,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 89.47826086956522) internal successors, (2058), 23 states have internal predecessors, (2058), 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) [2022-01-18 23:23:25,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 130.0) internal successors, (3120), 24 states have internal predecessors, (3120), 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) [2022-01-18 23:23:25,443 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 130.0) internal successors, (3120), 24 states have internal predecessors, (3120), 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) [2022-01-18 23:23:25,443 INFO L186 Difference]: Start difference. First operand has 139 places, 126 transitions, 451 flow. Second operand 23 states and 2058 transitions. [2022-01-18 23:23:25,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 155 transitions, 725 flow [2022-01-18 23:23:25,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 155 transitions, 704 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-01-18 23:23:25,451 INFO L242 Difference]: Finished difference. Result has 158 places, 134 transitions, 531 flow [2022-01-18 23:23:25,451 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=531, PETRI_PLACES=158, PETRI_TRANSITIONS=134} [2022-01-18 23:23:25,452 INFO L334 CegarLoopForPetriNet]: 123 programPoint places, 35 predicate places. [2022-01-18 23:23:25,452 INFO L470 AbstractCegarLoop]: Abstraction has has 158 places, 134 transitions, 531 flow [2022-01-18 23:23:25,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 89.57142857142857) internal successors, (1881), 21 states have internal predecessors, (1881), 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) [2022-01-18 23:23:25,452 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:25,452 INFO L254 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:25,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-18 23:23:25,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-01-18 23:23:25,667 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:25,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:25,667 INFO L85 PathProgramCache]: Analyzing trace with hash 204495269, now seen corresponding path program 1 times [2022-01-18 23:23:25,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:25,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727688771] [2022-01-18 23:23:25,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:25,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:25,683 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 23:23:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:25,705 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 23:23:25,705 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 23:23:25,705 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 23:23:25,705 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-18 23:23:25,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 23:23:25,706 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-18 23:23:25,706 WARN L235 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 23:23:25,706 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2022-01-18 23:23:25,712 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,713 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,713 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,713 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,713 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,713 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,713 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,713 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,713 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,713 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,713 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,714 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,714 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,714 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,714 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,714 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,714 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,714 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,714 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,714 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,714 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,714 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,714 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,715 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,716 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,717 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,718 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,719 WARN L322 ript$VariableManager]: TermVariabe thrThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe thrThread2of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe thrThread3of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,720 WARN L322 ript$VariableManager]: TermVariabe thrThread4of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe thrThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe thrThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,721 WARN L322 ript$VariableManager]: TermVariabe thrThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,722 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,722 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,722 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,722 WARN L322 ript$VariableManager]: TermVariabe thrThread8of8ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,722 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:25,725 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-01-18 23:23:25,725 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:23:25,726 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 [2022-01-18 23:23:25,726 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 23:23:25,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 140 places, 137 transitions, 394 flow [2022-01-18 23:23:26,460 INFO L129 PetriNetUnfolder]: 1811/10165 cut-off events. [2022-01-18 23:23:26,460 INFO L130 PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES. [2022-01-18 23:23:26,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11250 conditions, 10165 events. 1811/10165 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 102534 event pairs, 522 based on Foata normal form. 0/8610 useless extension candidates. Maximal degree in co-relation 5573. Up to 1024 conditions per place. [2022-01-18 23:23:26,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 137 transitions, 394 flow [2022-01-18 23:23:26,494 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 127 transitions, 374 flow [2022-01-18 23:23:26,496 INFO L129 PetriNetUnfolder]: 6/74 cut-off events. [2022-01-18 23:23:26,496 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:23:26,496 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:26,496 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] [2022-01-18 23:23:26,496 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:26,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:26,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1961474308, now seen corresponding path program 1 times [2022-01-18 23:23:26,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:26,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276796742] [2022-01-18 23:23:26,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:26,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:26,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:26,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:26,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276796742] [2022-01-18 23:23:26,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276796742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:26,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:26,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 23:23:26,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944903043] [2022-01-18 23:23:26,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:26,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 23:23:26,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:26,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 23:23:26,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 23:23:26,507 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 137 [2022-01-18 23:23:26,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 127 transitions, 374 flow. Second operand has 2 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 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) [2022-01-18 23:23:26,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:26,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 137 [2022-01-18 23:23:26,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:27,112 INFO L129 PetriNetUnfolder]: 1033/7083 cut-off events. [2022-01-18 23:23:27,112 INFO L130 PetriNetUnfolder]: For 3220/3220 co-relation queries the response was YES. [2022-01-18 23:23:27,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9201 conditions, 7083 events. 1033/7083 cut-off events. For 3220/3220 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 68981 event pairs, 522 based on Foata normal form. 522/7083 useless extension candidates. Maximal degree in co-relation 4483. Up to 1033 conditions per place. [2022-01-18 23:23:27,135 INFO L132 encePairwiseOnDemand]: 133/137 looper letters, 16 selfloop transitions, 0 changer transitions 1/123 dead transitions. [2022-01-18 23:23:27,135 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 123 transitions, 398 flow [2022-01-18 23:23:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 23:23:27,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-18 23:23:27,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 250 transitions. [2022-01-18 23:23:27,136 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9124087591240876 [2022-01-18 23:23:27,136 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 250 transitions. [2022-01-18 23:23:27,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 250 transitions. [2022-01-18 23:23:27,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:27,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 250 transitions. [2022-01-18 23:23:27,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 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) [2022-01-18 23:23:27,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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) [2022-01-18 23:23:27,137 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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) [2022-01-18 23:23:27,137 INFO L186 Difference]: Start difference. First operand has 131 places, 127 transitions, 374 flow. Second operand 2 states and 250 transitions. [2022-01-18 23:23:27,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 123 transitions, 398 flow [2022-01-18 23:23:27,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 123 transitions, 398 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:27,139 INFO L242 Difference]: Finished difference. Result has 132 places, 122 transitions, 364 flow [2022-01-18 23:23:27,139 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=364, PETRI_PLACES=132, PETRI_TRANSITIONS=122} [2022-01-18 23:23:27,139 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 1 predicate places. [2022-01-18 23:23:27,140 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 122 transitions, 364 flow [2022-01-18 23:23:27,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 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) [2022-01-18 23:23:27,140 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:27,140 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] [2022-01-18 23:23:27,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 23:23:27,140 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:27,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:27,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1445989307, now seen corresponding path program 1 times [2022-01-18 23:23:27,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:27,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656676572] [2022-01-18 23:23:27,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:27,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:27,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:27,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:27,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656676572] [2022-01-18 23:23:27,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656676572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:27,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:27,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:23:27,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7447829] [2022-01-18 23:23:27,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:27,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:23:27,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:27,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:23:27,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:23:27,173 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 137 [2022-01-18 23:23:27,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 122 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 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) [2022-01-18 23:23:27,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:27,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 137 [2022-01-18 23:23:27,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:28,095 INFO L129 PetriNetUnfolder]: 1052/8719 cut-off events. [2022-01-18 23:23:28,095 INFO L130 PetriNetUnfolder]: For 1164/1164 co-relation queries the response was YES. [2022-01-18 23:23:28,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14849 conditions, 8719 events. 1052/8719 cut-off events. For 1164/1164 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 91882 event pairs, 303 based on Foata normal form. 0/8201 useless extension candidates. Maximal degree in co-relation 14838. Up to 3888 conditions per place. [2022-01-18 23:23:28,143 INFO L132 encePairwiseOnDemand]: 125/137 looper letters, 52 selfloop transitions, 9 changer transitions 0/142 dead transitions. [2022-01-18 23:23:28,143 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 142 transitions, 550 flow [2022-01-18 23:23:28,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:23:28,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:23:28,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 598 transitions. [2022-01-18 23:23:28,144 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7274939172749392 [2022-01-18 23:23:28,144 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 598 transitions. [2022-01-18 23:23:28,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 598 transitions. [2022-01-18 23:23:28,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:28,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 598 transitions. [2022-01-18 23:23:28,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.66666666666667) internal successors, (598), 6 states have internal predecessors, (598), 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) [2022-01-18 23:23:28,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 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) [2022-01-18 23:23:28,146 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 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) [2022-01-18 23:23:28,146 INFO L186 Difference]: Start difference. First operand has 132 places, 122 transitions, 364 flow. Second operand 6 states and 598 transitions. [2022-01-18 23:23:28,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 142 transitions, 550 flow [2022-01-18 23:23:28,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 142 transitions, 550 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:28,149 INFO L242 Difference]: Finished difference. Result has 137 places, 125 transitions, 406 flow [2022-01-18 23:23:28,149 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=406, PETRI_PLACES=137, PETRI_TRANSITIONS=125} [2022-01-18 23:23:28,150 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 6 predicate places. [2022-01-18 23:23:28,150 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 125 transitions, 406 flow [2022-01-18 23:23:28,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 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) [2022-01-18 23:23:28,150 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:28,150 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:28,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 23:23:28,150 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:28,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:28,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1355647550, now seen corresponding path program 1 times [2022-01-18 23:23:28,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:28,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202672567] [2022-01-18 23:23:28,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:28,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:28,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:28,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:28,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202672567] [2022-01-18 23:23:28,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202672567] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:23:28,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788989134] [2022-01-18 23:23:28,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:28,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:28,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:28,202 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:23:28,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 23:23:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:28,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 23:23:28,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:23:28,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:28,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:23:28,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:28,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788989134] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:23:28,649 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:23:28,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-01-18 23:23:28,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178630913] [2022-01-18 23:23:28,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:23:28,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 23:23:28,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:28,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 23:23:28,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-01-18 23:23:28,651 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 137 [2022-01-18 23:23:28,651 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 125 transitions, 406 flow. Second operand has 20 states, 20 states have (on average 90.6) internal successors, (1812), 20 states have internal predecessors, (1812), 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) [2022-01-18 23:23:28,651 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:28,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 137 [2022-01-18 23:23:28,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:29,750 INFO L129 PetriNetUnfolder]: 1049/8699 cut-off events. [2022-01-18 23:23:29,750 INFO L130 PetriNetUnfolder]: For 2440/2440 co-relation queries the response was YES. [2022-01-18 23:23:29,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16687 conditions, 8699 events. 1049/8699 cut-off events. For 2440/2440 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 92161 event pairs, 304 based on Foata normal form. 2/8701 useless extension candidates. Maximal degree in co-relation 16674. Up to 2565 conditions per place. [2022-01-18 23:23:29,804 INFO L132 encePairwiseOnDemand]: 122/137 looper letters, 49 selfloop transitions, 20 changer transitions 0/149 dead transitions. [2022-01-18 23:23:29,804 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 149 transitions, 618 flow [2022-01-18 23:23:29,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 23:23:29,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-18 23:23:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1127 transitions. [2022-01-18 23:23:29,806 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6855231143552312 [2022-01-18 23:23:29,806 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1127 transitions. [2022-01-18 23:23:29,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1127 transitions. [2022-01-18 23:23:29,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:29,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1127 transitions. [2022-01-18 23:23:29,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 93.91666666666667) internal successors, (1127), 12 states have internal predecessors, (1127), 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) [2022-01-18 23:23:29,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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) [2022-01-18 23:23:29,808 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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) [2022-01-18 23:23:29,808 INFO L186 Difference]: Start difference. First operand has 137 places, 125 transitions, 406 flow. Second operand 12 states and 1127 transitions. [2022-01-18 23:23:29,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 149 transitions, 618 flow [2022-01-18 23:23:29,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 149 transitions, 606 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-18 23:23:29,815 INFO L242 Difference]: Finished difference. Result has 147 places, 133 transitions, 487 flow [2022-01-18 23:23:29,815 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=487, PETRI_PLACES=147, PETRI_TRANSITIONS=133} [2022-01-18 23:23:29,815 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 16 predicate places. [2022-01-18 23:23:29,815 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 133 transitions, 487 flow [2022-01-18 23:23:29,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.6) internal successors, (1812), 20 states have internal predecessors, (1812), 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) [2022-01-18 23:23:29,816 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:29,816 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:29,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 23:23:30,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:30,032 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:30,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:30,032 INFO L85 PathProgramCache]: Analyzing trace with hash 224936797, now seen corresponding path program 1 times [2022-01-18 23:23:30,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:30,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131615916] [2022-01-18 23:23:30,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:30,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:30,098 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:23:30,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:30,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131615916] [2022-01-18 23:23:30,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131615916] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:23:30,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341870162] [2022-01-18 23:23:30,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:30,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:30,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:30,100 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:23:30,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 23:23:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:30,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 23:23:30,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:23:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:23:30,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:23:30,519 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:23:30,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341870162] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:23:30,520 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:23:30,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-01-18 23:23:30,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371908567] [2022-01-18 23:23:30,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:23:30,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 23:23:30,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:30,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 23:23:30,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-01-18 23:23:30,521 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 137 [2022-01-18 23:23:30,522 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 133 transitions, 487 flow. Second operand has 21 states, 21 states have (on average 94.57142857142857) internal successors, (1986), 21 states have internal predecessors, (1986), 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) [2022-01-18 23:23:30,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:30,522 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 137 [2022-01-18 23:23:30,522 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:31,701 INFO L129 PetriNetUnfolder]: 1098/8331 cut-off events. [2022-01-18 23:23:31,701 INFO L130 PetriNetUnfolder]: For 5494/5494 co-relation queries the response was YES. [2022-01-18 23:23:31,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19416 conditions, 8331 events. 1098/8331 cut-off events. For 5494/5494 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 89485 event pairs, 140 based on Foata normal form. 116/8447 useless extension candidates. Maximal degree in co-relation 19400. Up to 2468 conditions per place. [2022-01-18 23:23:31,735 INFO L132 encePairwiseOnDemand]: 122/137 looper letters, 53 selfloop transitions, 29 changer transitions 0/164 dead transitions. [2022-01-18 23:23:31,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 164 transitions, 779 flow [2022-01-18 23:23:31,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 23:23:31,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-18 23:23:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2177 transitions. [2022-01-18 23:23:31,737 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6908917803871787 [2022-01-18 23:23:31,737 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2177 transitions. [2022-01-18 23:23:31,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2177 transitions. [2022-01-18 23:23:31,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:31,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2177 transitions. [2022-01-18 23:23:31,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 94.65217391304348) internal successors, (2177), 23 states have internal predecessors, (2177), 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) [2022-01-18 23:23:31,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 137.0) internal successors, (3288), 24 states have internal predecessors, (3288), 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) [2022-01-18 23:23:31,741 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 137.0) internal successors, (3288), 24 states have internal predecessors, (3288), 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) [2022-01-18 23:23:31,742 INFO L186 Difference]: Start difference. First operand has 147 places, 133 transitions, 487 flow. Second operand 23 states and 2177 transitions. [2022-01-18 23:23:31,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 164 transitions, 779 flow [2022-01-18 23:23:31,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 164 transitions, 758 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-01-18 23:23:31,752 INFO L242 Difference]: Finished difference. Result has 166 places, 141 transitions, 567 flow [2022-01-18 23:23:31,752 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=567, PETRI_PLACES=166, PETRI_TRANSITIONS=141} [2022-01-18 23:23:31,753 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 35 predicate places. [2022-01-18 23:23:31,753 INFO L470 AbstractCegarLoop]: Abstraction has has 166 places, 141 transitions, 567 flow [2022-01-18 23:23:31,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 94.57142857142857) internal successors, (1986), 21 states have internal predecessors, (1986), 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) [2022-01-18 23:23:31,753 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:31,753 INFO L254 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:31,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-01-18 23:23:31,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-01-18 23:23:31,967 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:31,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:31,968 INFO L85 PathProgramCache]: Analyzing trace with hash -523637086, now seen corresponding path program 1 times [2022-01-18 23:23:31,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:31,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318213228] [2022-01-18 23:23:31,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:31,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:31,983 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 23:23:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:32,015 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 23:23:32,015 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 23:23:32,015 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 23:23:32,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-18 23:23:32,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 23:23:32,015 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-18 23:23:32,016 WARN L235 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 23:23:32,016 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2022-01-18 23:23:32,026 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,026 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,026 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,026 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,026 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,026 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,026 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,026 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,026 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,026 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,027 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,028 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe |thrThread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe |thrThread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe |thrThread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe |thrThread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,029 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,030 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,031 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,032 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,032 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,032 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,032 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,032 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,032 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,032 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,032 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,034 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,034 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,035 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,036 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,036 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,036 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,036 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,036 WARN L322 ript$VariableManager]: TermVariabe thrThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,036 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,036 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,036 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,036 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,036 WARN L322 ript$VariableManager]: TermVariabe thrThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe thrThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe thrThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,037 WARN L322 ript$VariableManager]: TermVariabe thrThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe thrThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe thrThread7of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,038 WARN L322 ript$VariableManager]: TermVariabe thrThread8of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,039 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,039 WARN L322 ript$VariableManager]: TermVariabe |thrThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,039 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,039 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,039 WARN L322 ript$VariableManager]: TermVariabe thrThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,039 WARN L322 ript$VariableManager]: TermVariabe |thrThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:32,042 INFO L148 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-01-18 23:23:32,043 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:23:32,044 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 [2022-01-18 23:23:32,044 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 23:23:32,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 148 places, 144 transitions, 432 flow [2022-01-18 23:23:33,664 INFO L129 PetriNetUnfolder]: 3861/20423 cut-off events. [2022-01-18 23:23:33,664 INFO L130 PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES. [2022-01-18 23:23:33,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22800 conditions, 20423 events. 3861/20423 cut-off events. For 2460/2460 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 236307 event pairs, 1291 based on Foata normal form. 0/17330 useless extension candidates. Maximal degree in co-relation 11232. Up to 2304 conditions per place. [2022-01-18 23:23:33,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 144 transitions, 432 flow [2022-01-18 23:23:33,758 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 134 transitions, 412 flow [2022-01-18 23:23:33,761 INFO L129 PetriNetUnfolder]: 7/77 cut-off events. [2022-01-18 23:23:33,761 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:23:33,761 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:33,761 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] [2022-01-18 23:23:33,761 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:33,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:33,761 INFO L85 PathProgramCache]: Analyzing trace with hash 507427541, now seen corresponding path program 1 times [2022-01-18 23:23:33,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:33,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614405395] [2022-01-18 23:23:33,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:33,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:33,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:33,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614405395] [2022-01-18 23:23:33,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614405395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:33,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:33,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:23:33,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736207207] [2022-01-18 23:23:33,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:33,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:23:33,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:33,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:23:33,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:23:33,795 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 144 [2022-01-18 23:23:33,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 134 transitions, 412 flow. Second operand has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 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) [2022-01-18 23:23:33,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:33,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 144 [2022-01-18 23:23:33,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:35,748 INFO L129 PetriNetUnfolder]: 2340/17475 cut-off events. [2022-01-18 23:23:35,748 INFO L130 PetriNetUnfolder]: For 2496/2496 co-relation queries the response was YES. [2022-01-18 23:23:35,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30058 conditions, 17475 events. 2340/17475 cut-off events. For 2496/2496 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 210326 event pairs, 825 based on Foata normal form. 1/16444 useless extension candidates. Maximal degree in co-relation 14831. Up to 7996 conditions per place. [2022-01-18 23:23:35,819 INFO L132 encePairwiseOnDemand]: 128/144 looper letters, 55 selfloop transitions, 9 changer transitions 1/151 dead transitions. [2022-01-18 23:23:35,819 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 151 transitions, 603 flow [2022-01-18 23:23:35,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:23:35,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:23:35,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 639 transitions. [2022-01-18 23:23:35,820 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7395833333333334 [2022-01-18 23:23:35,820 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 639 transitions. [2022-01-18 23:23:35,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 639 transitions. [2022-01-18 23:23:35,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:35,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 639 transitions. [2022-01-18 23:23:35,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.5) internal successors, (639), 6 states have internal predecessors, (639), 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) [2022-01-18 23:23:35,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 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) [2022-01-18 23:23:35,822 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 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) [2022-01-18 23:23:35,822 INFO L186 Difference]: Start difference. First operand has 139 places, 134 transitions, 412 flow. Second operand 6 states and 639 transitions. [2022-01-18 23:23:35,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 151 transitions, 603 flow [2022-01-18 23:23:35,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 151 transitions, 603 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:35,825 INFO L242 Difference]: Finished difference. Result has 145 places, 132 transitions, 444 flow [2022-01-18 23:23:35,826 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=444, PETRI_PLACES=145, PETRI_TRANSITIONS=132} [2022-01-18 23:23:35,826 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, 6 predicate places. [2022-01-18 23:23:35,826 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 132 transitions, 444 flow [2022-01-18 23:23:35,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 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) [2022-01-18 23:23:35,826 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:35,826 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:35,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 23:23:35,827 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:35,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:35,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1959051616, now seen corresponding path program 1 times [2022-01-18 23:23:35,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:35,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998878685] [2022-01-18 23:23:35,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:35,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:35,874 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:35,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:35,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998878685] [2022-01-18 23:23:35,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998878685] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:23:35,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349942409] [2022-01-18 23:23:35,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:35,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:35,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:35,875 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:23:35,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 23:23:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:35,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 23:23:35,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:23:36,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:36,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:23:36,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:36,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349942409] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:23:36,297 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:23:36,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-01-18 23:23:36,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826252252] [2022-01-18 23:23:36,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:23:36,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 23:23:36,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:36,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 23:23:36,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-01-18 23:23:36,298 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 144 [2022-01-18 23:23:36,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 132 transitions, 444 flow. Second operand has 20 states, 20 states have (on average 95.6) internal successors, (1912), 20 states have internal predecessors, (1912), 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) [2022-01-18 23:23:36,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:36,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 144 [2022-01-18 23:23:36,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:38,550 INFO L129 PetriNetUnfolder]: 2337/17454 cut-off events. [2022-01-18 23:23:38,550 INFO L130 PetriNetUnfolder]: For 5052/5052 co-relation queries the response was YES. [2022-01-18 23:23:38,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33707 conditions, 17454 events. 2337/17454 cut-off events. For 5052/5052 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 210625 event pairs, 826 based on Foata normal form. 2/17456 useless extension candidates. Maximal degree in co-relation 16679. Up to 5383 conditions per place. [2022-01-18 23:23:38,648 INFO L132 encePairwiseOnDemand]: 129/144 looper letters, 52 selfloop transitions, 20 changer transitions 0/157 dead transitions. [2022-01-18 23:23:38,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 157 transitions, 667 flow [2022-01-18 23:23:38,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 23:23:38,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-18 23:23:38,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1190 transitions. [2022-01-18 23:23:38,649 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6886574074074074 [2022-01-18 23:23:38,649 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1190 transitions. [2022-01-18 23:23:38,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1190 transitions. [2022-01-18 23:23:38,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:38,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1190 transitions. [2022-01-18 23:23:38,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 99.16666666666667) internal successors, (1190), 12 states have internal predecessors, (1190), 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) [2022-01-18 23:23:38,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 144.0) internal successors, (1872), 13 states have internal predecessors, (1872), 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) [2022-01-18 23:23:38,652 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 144.0) internal successors, (1872), 13 states have internal predecessors, (1872), 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) [2022-01-18 23:23:38,652 INFO L186 Difference]: Start difference. First operand has 145 places, 132 transitions, 444 flow. Second operand 12 states and 1190 transitions. [2022-01-18 23:23:38,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 157 transitions, 667 flow [2022-01-18 23:23:38,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 157 transitions, 655 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-18 23:23:38,662 INFO L242 Difference]: Finished difference. Result has 154 places, 140 transitions, 525 flow [2022-01-18 23:23:38,662 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=525, PETRI_PLACES=154, PETRI_TRANSITIONS=140} [2022-01-18 23:23:38,662 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, 15 predicate places. [2022-01-18 23:23:38,663 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 140 transitions, 525 flow [2022-01-18 23:23:38,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 95.6) internal successors, (1912), 20 states have internal predecessors, (1912), 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) [2022-01-18 23:23:38,663 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:38,663 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:38,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-01-18 23:23:38,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:38,879 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:38,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:38,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1360586743, now seen corresponding path program 1 times [2022-01-18 23:23:38,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:38,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894321200] [2022-01-18 23:23:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:38,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:38,955 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:23:38,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:38,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894321200] [2022-01-18 23:23:38,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894321200] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:23:38,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058482026] [2022-01-18 23:23:38,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:38,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:38,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:38,957 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:23:38,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-18 23:23:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:39,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 23:23:39,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:23:39,244 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:23:39,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:23:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:23:39,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058482026] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:23:39,414 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:23:39,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-01-18 23:23:39,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105706258] [2022-01-18 23:23:39,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:23:39,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 23:23:39,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:39,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 23:23:39,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-01-18 23:23:39,416 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 144 [2022-01-18 23:23:39,417 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 140 transitions, 525 flow. Second operand has 21 states, 21 states have (on average 99.57142857142857) internal successors, (2091), 21 states have internal predecessors, (2091), 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) [2022-01-18 23:23:39,417 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:39,417 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 144 [2022-01-18 23:23:39,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:41,827 INFO L129 PetriNetUnfolder]: 2425/17099 cut-off events. [2022-01-18 23:23:41,827 INFO L130 PetriNetUnfolder]: For 11266/11266 co-relation queries the response was YES. [2022-01-18 23:23:41,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39718 conditions, 17099 events. 2425/17099 cut-off events. For 11266/11266 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 208813 event pairs, 443 based on Foata normal form. 161/17260 useless extension candidates. Maximal degree in co-relation 20303. Up to 5293 conditions per place. [2022-01-18 23:23:41,953 INFO L132 encePairwiseOnDemand]: 129/144 looper letters, 57 selfloop transitions, 29 changer transitions 0/173 dead transitions. [2022-01-18 23:23:41,954 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 173 transitions, 835 flow [2022-01-18 23:23:41,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 23:23:41,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-18 23:23:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2296 transitions. [2022-01-18 23:23:41,956 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6932367149758454 [2022-01-18 23:23:41,956 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2296 transitions. [2022-01-18 23:23:41,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2296 transitions. [2022-01-18 23:23:41,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:41,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2296 transitions. [2022-01-18 23:23:41,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 99.82608695652173) internal successors, (2296), 23 states have internal predecessors, (2296), 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) [2022-01-18 23:23:41,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 144.0) internal successors, (3456), 24 states have internal predecessors, (3456), 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) [2022-01-18 23:23:41,962 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 144.0) internal successors, (3456), 24 states have internal predecessors, (3456), 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) [2022-01-18 23:23:41,962 INFO L186 Difference]: Start difference. First operand has 154 places, 140 transitions, 525 flow. Second operand 23 states and 2296 transitions. [2022-01-18 23:23:41,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 173 transitions, 835 flow [2022-01-18 23:23:41,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 173 transitions, 814 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-01-18 23:23:41,984 INFO L242 Difference]: Finished difference. Result has 173 places, 148 transitions, 605 flow [2022-01-18 23:23:41,984 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=605, PETRI_PLACES=173, PETRI_TRANSITIONS=148} [2022-01-18 23:23:41,985 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, 34 predicate places. [2022-01-18 23:23:41,985 INFO L470 AbstractCegarLoop]: Abstraction has has 173 places, 148 transitions, 605 flow [2022-01-18 23:23:41,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 99.57142857142857) internal successors, (2091), 21 states have internal predecessors, (2091), 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) [2022-01-18 23:23:41,985 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:41,985 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:42,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-18 23:23:42,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-01-18 23:23:42,207 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:42,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:42,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1024113870, now seen corresponding path program 1 times [2022-01-18 23:23:42,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:42,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212818696] [2022-01-18 23:23:42,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:42,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-01-18 23:23:42,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:42,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212818696] [2022-01-18 23:23:42,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212818696] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:23:42,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134724821] [2022-01-18 23:23:42,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:42,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:42,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:42,292 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:23:42,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-18 23:23:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:42,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 23:23:42,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:23:42,615 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-01-18 23:23:42,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:23:42,819 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-01-18 23:23:42,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134724821] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:23:42,819 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:23:42,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-01-18 23:23:42,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811736272] [2022-01-18 23:23:42,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:23:42,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 23:23:42,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:42,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 23:23:42,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-01-18 23:23:42,822 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 144 [2022-01-18 23:23:42,823 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 148 transitions, 605 flow. Second operand has 21 states, 21 states have (on average 100.0) internal successors, (2100), 21 states have internal predecessors, (2100), 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) [2022-01-18 23:23:42,823 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:42,823 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 144 [2022-01-18 23:23:42,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:45,825 INFO L129 PetriNetUnfolder]: 2425/21293 cut-off events. [2022-01-18 23:23:45,825 INFO L130 PetriNetUnfolder]: For 24512/24512 co-relation queries the response was YES. [2022-01-18 23:23:45,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57818 conditions, 21293 events. 2425/21293 cut-off events. For 24512/24512 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 275349 event pairs, 909 based on Foata normal form. 932/22225 useless extension candidates. Maximal degree in co-relation 29788. Up to 6547 conditions per place. [2022-01-18 23:23:46,016 INFO L132 encePairwiseOnDemand]: 129/144 looper letters, 49 selfloop transitions, 31 changer transitions 0/169 dead transitions. [2022-01-18 23:23:46,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 169 transitions, 855 flow [2022-01-18 23:23:46,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 23:23:46,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-18 23:23:46,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2287 transitions. [2022-01-18 23:23:46,018 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6905193236714976 [2022-01-18 23:23:46,018 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2287 transitions. [2022-01-18 23:23:46,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2287 transitions. [2022-01-18 23:23:46,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:46,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2287 transitions. [2022-01-18 23:23:46,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 99.43478260869566) internal successors, (2287), 23 states have internal predecessors, (2287), 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) [2022-01-18 23:23:46,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 144.0) internal successors, (3456), 24 states have internal predecessors, (3456), 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) [2022-01-18 23:23:46,022 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 144.0) internal successors, (3456), 24 states have internal predecessors, (3456), 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) [2022-01-18 23:23:46,022 INFO L186 Difference]: Start difference. First operand has 173 places, 148 transitions, 605 flow. Second operand 23 states and 2287 transitions. [2022-01-18 23:23:46,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 169 transitions, 855 flow [2022-01-18 23:23:46,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 169 transitions, 812 flow, removed 7 selfloop flow, removed 9 redundant places. [2022-01-18 23:23:46,077 INFO L242 Difference]: Finished difference. Result has 187 places, 154 transitions, 665 flow [2022-01-18 23:23:46,078 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=665, PETRI_PLACES=187, PETRI_TRANSITIONS=154} [2022-01-18 23:23:46,078 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, 48 predicate places. [2022-01-18 23:23:46,078 INFO L470 AbstractCegarLoop]: Abstraction has has 187 places, 154 transitions, 665 flow [2022-01-18 23:23:46,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 100.0) internal successors, (2100), 21 states have internal predecessors, (2100), 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) [2022-01-18 23:23:46,079 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:46,079 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:46,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-18 23:23:46,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-01-18 23:23:46,296 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:46,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:46,296 INFO L85 PathProgramCache]: Analyzing trace with hash 436831306, now seen corresponding path program 1 times [2022-01-18 23:23:46,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:46,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823032113] [2022-01-18 23:23:46,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:46,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:46,314 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 23:23:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:23:46,330 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 23:23:46,331 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 23:23:46,331 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 23:23:46,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-18 23:23:46,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 23:23:46,332 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-18 23:23:46,332 WARN L235 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 23:23:46,332 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2022-01-18 23:23:46,342 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,342 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,342 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,342 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,343 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,344 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,345 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,346 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe |thrThread9of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe |thrThread9of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe |thrThread9of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe |thrThread9of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,347 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe |thrThread10of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe |thrThread10of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe |thrThread10of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe |thrThread10of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,348 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe thrThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe thrThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe thrThread3of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,349 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,350 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,350 WARN L322 ript$VariableManager]: TermVariabe thrThread4of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,350 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,350 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,350 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,350 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,350 WARN L322 ript$VariableManager]: TermVariabe thrThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,350 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,350 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,350 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,350 WARN L322 ript$VariableManager]: TermVariabe |thrThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,350 WARN L322 ript$VariableManager]: TermVariabe thrThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe |thrThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe thrThread7of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe |thrThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe thrThread8of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe |thrThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe |thrThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,351 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,352 WARN L322 ript$VariableManager]: TermVariabe thrThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,352 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,352 WARN L322 ript$VariableManager]: TermVariabe |thrThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,352 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,352 WARN L322 ript$VariableManager]: TermVariabe |thrThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,352 WARN L322 ript$VariableManager]: TermVariabe thrThread10of10ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:23:46,353 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2022-01-18 23:23:46,354 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:23:46,354 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 [2022-01-18 23:23:46,354 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 23:23:46,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 156 places, 151 transitions, 472 flow [2022-01-18 23:23:50,174 INFO L129 PetriNetUnfolder]: 8215/41177 cut-off events. [2022-01-18 23:23:50,174 INFO L130 PetriNetUnfolder]: For 5330/5330 co-relation queries the response was YES. [2022-01-18 23:23:50,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46383 conditions, 41177 events. 8215/41177 cut-off events. For 5330/5330 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 535162 event pairs, 3084 based on Foata normal form. 0/35010 useless extension candidates. Maximal degree in co-relation 22780. Up to 5120 conditions per place. [2022-01-18 23:23:50,331 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 151 transitions, 472 flow [2022-01-18 23:23:50,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 141 transitions, 452 flow [2022-01-18 23:23:50,413 INFO L129 PetriNetUnfolder]: 6/74 cut-off events. [2022-01-18 23:23:50,413 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:23:50,413 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:50,413 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] [2022-01-18 23:23:50,413 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:50,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:50,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1949500845, now seen corresponding path program 1 times [2022-01-18 23:23:50,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:50,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546960740] [2022-01-18 23:23:50,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:50,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:50,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:50,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:50,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546960740] [2022-01-18 23:23:50,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546960740] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:50,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:50,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 23:23:50,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320882422] [2022-01-18 23:23:50,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:50,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 23:23:50,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:50,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 23:23:50,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 23:23:50,431 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 151 [2022-01-18 23:23:50,431 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 141 transitions, 452 flow. Second operand has 2 states, 2 states have (on average 125.5) internal successors, (251), 2 states have internal predecessors, (251), 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) [2022-01-18 23:23:50,431 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:50,432 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 151 [2022-01-18 23:23:50,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:53,207 INFO L129 PetriNetUnfolder]: 5131/28877 cut-off events. [2022-01-18 23:23:53,207 INFO L130 PetriNetUnfolder]: For 15625/15625 co-relation queries the response was YES. [2022-01-18 23:23:53,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39214 conditions, 28877 events. 5131/28877 cut-off events. For 15625/15625 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 363627 event pairs, 3084 based on Foata normal form. 2060/28877 useless extension candidates. Maximal degree in co-relation 18938. Up to 5131 conditions per place. [2022-01-18 23:23:53,367 INFO L132 encePairwiseOnDemand]: 147/151 looper letters, 20 selfloop transitions, 0 changer transitions 1/137 dead transitions. [2022-01-18 23:23:53,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 137 transitions, 484 flow [2022-01-18 23:23:53,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 23:23:53,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-18 23:23:53,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 274 transitions. [2022-01-18 23:23:53,368 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9072847682119205 [2022-01-18 23:23:53,368 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 274 transitions. [2022-01-18 23:23:53,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 274 transitions. [2022-01-18 23:23:53,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:53,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 274 transitions. [2022-01-18 23:23:53,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 137.0) internal successors, (274), 2 states have internal predecessors, (274), 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) [2022-01-18 23:23:53,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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) [2022-01-18 23:23:53,369 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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) [2022-01-18 23:23:53,369 INFO L186 Difference]: Start difference. First operand has 147 places, 141 transitions, 452 flow. Second operand 2 states and 274 transitions. [2022-01-18 23:23:53,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 137 transitions, 484 flow [2022-01-18 23:23:53,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 137 transitions, 484 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:53,373 INFO L242 Difference]: Finished difference. Result has 148 places, 136 transitions, 442 flow [2022-01-18 23:23:53,373 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=442, PETRI_PLACES=148, PETRI_TRANSITIONS=136} [2022-01-18 23:23:53,373 INFO L334 CegarLoopForPetriNet]: 147 programPoint places, 1 predicate places. [2022-01-18 23:23:53,373 INFO L470 AbstractCegarLoop]: Abstraction has has 148 places, 136 transitions, 442 flow [2022-01-18 23:23:53,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 125.5) internal successors, (251), 2 states have internal predecessors, (251), 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) [2022-01-18 23:23:53,374 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:53,374 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] [2022-01-18 23:23:53,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 23:23:53,374 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:53,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:53,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2078583564, now seen corresponding path program 1 times [2022-01-18 23:23:53,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:53,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879700838] [2022-01-18 23:23:53,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:53,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:53,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:23:53,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:53,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879700838] [2022-01-18 23:23:53,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879700838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:23:53,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:23:53,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:23:53,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108093210] [2022-01-18 23:23:53,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:23:53,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:23:53,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:53,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:23:53,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:23:53,404 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 151 [2022-01-18 23:23:53,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 136 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 101.16666666666667) internal successors, (607), 6 states have internal predecessors, (607), 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) [2022-01-18 23:23:53,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:53,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 151 [2022-01-18 23:23:53,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:23:57,598 INFO L129 PetriNetUnfolder]: 5165/35193 cut-off events. [2022-01-18 23:23:57,598 INFO L130 PetriNetUnfolder]: For 5375/5375 co-relation queries the response was YES. [2022-01-18 23:23:57,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61146 conditions, 35193 events. 5165/35193 cut-off events. For 5375/5375 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 474996 event pairs, 2116 based on Foata normal form. 0/33137 useless extension candidates. Maximal degree in co-relation 61133. Up to 16457 conditions per place. [2022-01-18 23:23:57,817 INFO L132 encePairwiseOnDemand]: 139/151 looper letters, 58 selfloop transitions, 9 changer transitions 0/158 dead transitions. [2022-01-18 23:23:57,817 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 158 transitions, 650 flow [2022-01-18 23:23:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:23:57,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:23:57,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 664 transitions. [2022-01-18 23:23:57,819 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7328918322295805 [2022-01-18 23:23:57,819 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 664 transitions. [2022-01-18 23:23:57,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 664 transitions. [2022-01-18 23:23:57,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:23:57,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 664 transitions. [2022-01-18 23:23:57,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.66666666666667) internal successors, (664), 6 states have internal predecessors, (664), 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) [2022-01-18 23:23:57,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 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) [2022-01-18 23:23:57,820 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 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) [2022-01-18 23:23:57,820 INFO L186 Difference]: Start difference. First operand has 148 places, 136 transitions, 442 flow. Second operand 6 states and 664 transitions. [2022-01-18 23:23:57,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 158 transitions, 650 flow [2022-01-18 23:23:57,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 158 transitions, 650 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:23:57,827 INFO L242 Difference]: Finished difference. Result has 153 places, 139 transitions, 484 flow [2022-01-18 23:23:57,827 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=484, PETRI_PLACES=153, PETRI_TRANSITIONS=139} [2022-01-18 23:23:57,828 INFO L334 CegarLoopForPetriNet]: 147 programPoint places, 6 predicate places. [2022-01-18 23:23:57,828 INFO L470 AbstractCegarLoop]: Abstraction has has 153 places, 139 transitions, 484 flow [2022-01-18 23:23:57,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.16666666666667) internal successors, (607), 6 states have internal predecessors, (607), 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) [2022-01-18 23:23:57,828 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:23:57,828 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:23:57,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 23:23:57,828 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:23:57,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:23:57,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1349887398, now seen corresponding path program 1 times [2022-01-18 23:23:57,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:23:57,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113668954] [2022-01-18 23:23:57,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:57,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:23:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:57,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:57,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:23:57,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113668954] [2022-01-18 23:23:57,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113668954] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:23:57,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390001397] [2022-01-18 23:23:57,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:23:57,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:23:57,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:23:57,881 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:23:57,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-18 23:23:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:23:57,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 23:23:57,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:23:58,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:58,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:23:58,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 23:23:58,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390001397] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:23:58,295 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:23:58,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-01-18 23:23:58,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160332583] [2022-01-18 23:23:58,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:23:58,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 23:23:58,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:23:58,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 23:23:58,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-01-18 23:23:58,296 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 151 [2022-01-18 23:23:58,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 139 transitions, 484 flow. Second operand has 20 states, 20 states have (on average 100.6) internal successors, (2012), 20 states have internal predecessors, (2012), 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) [2022-01-18 23:23:58,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:23:58,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 151 [2022-01-18 23:23:58,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:24:03,076 INFO L129 PetriNetUnfolder]: 5162/35173 cut-off events. [2022-01-18 23:24:03,076 INFO L130 PetriNetUnfolder]: For 10491/10491 co-relation queries the response was YES. [2022-01-18 23:24:03,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68404 conditions, 35173 events. 5162/35173 cut-off events. For 10491/10491 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 475219 event pairs, 2117 based on Foata normal form. 2/35175 useless extension candidates. Maximal degree in co-relation 68389. Up to 11273 conditions per place. [2022-01-18 23:24:03,304 INFO L132 encePairwiseOnDemand]: 136/151 looper letters, 55 selfloop transitions, 20 changer transitions 0/165 dead transitions. [2022-01-18 23:24:03,305 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 165 transitions, 718 flow [2022-01-18 23:24:03,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 23:24:03,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-18 23:24:03,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1253 transitions. [2022-01-18 23:24:03,306 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6915011037527594 [2022-01-18 23:24:03,306 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1253 transitions. [2022-01-18 23:24:03,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1253 transitions. [2022-01-18 23:24:03,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:24:03,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1253 transitions. [2022-01-18 23:24:03,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 104.41666666666667) internal successors, (1253), 12 states have internal predecessors, (1253), 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) [2022-01-18 23:24:03,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 151.0) internal successors, (1963), 13 states have internal predecessors, (1963), 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) [2022-01-18 23:24:03,308 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 151.0) internal successors, (1963), 13 states have internal predecessors, (1963), 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) [2022-01-18 23:24:03,308 INFO L186 Difference]: Start difference. First operand has 153 places, 139 transitions, 484 flow. Second operand 12 states and 1253 transitions. [2022-01-18 23:24:03,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 165 transitions, 718 flow [2022-01-18 23:24:03,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 165 transitions, 706 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-18 23:24:03,328 INFO L242 Difference]: Finished difference. Result has 163 places, 147 transitions, 565 flow [2022-01-18 23:24:03,329 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=565, PETRI_PLACES=163, PETRI_TRANSITIONS=147} [2022-01-18 23:24:03,329 INFO L334 CegarLoopForPetriNet]: 147 programPoint places, 16 predicate places. [2022-01-18 23:24:03,329 INFO L470 AbstractCegarLoop]: Abstraction has has 163 places, 147 transitions, 565 flow [2022-01-18 23:24:03,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 100.6) internal successors, (2012), 20 states have internal predecessors, (2012), 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) [2022-01-18 23:24:03,329 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:24:03,329 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:24:03,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-18 23:24:03,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-01-18 23:24:03,539 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:24:03,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:24:03,540 INFO L85 PathProgramCache]: Analyzing trace with hash 2099791053, now seen corresponding path program 1 times [2022-01-18 23:24:03,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:24:03,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259586101] [2022-01-18 23:24:03,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:24:03,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:24:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:24:03,607 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:24:03,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:24:03,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259586101] [2022-01-18 23:24:03,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259586101] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:24:03,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944515626] [2022-01-18 23:24:03,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:24:03,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:24:03,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:24:03,609 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:24:03,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-18 23:24:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:24:03,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 23:24:03,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:24:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:24:03,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:24:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 23:24:04,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944515626] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:24:04,036 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:24:04,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-01-18 23:24:04,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607098650] [2022-01-18 23:24:04,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:24:04,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 23:24:04,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:24:04,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 23:24:04,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-01-18 23:24:04,038 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 151 [2022-01-18 23:24:04,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 147 transitions, 565 flow. Second operand has 21 states, 21 states have (on average 104.57142857142857) internal successors, (2196), 21 states have internal predecessors, (2196), 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) [2022-01-18 23:24:04,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:24:04,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 151 [2022-01-18 23:24:04,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:24:09,045 INFO L129 PetriNetUnfolder]: 5303/34867 cut-off events. [2022-01-18 23:24:09,045 INFO L130 PetriNetUnfolder]: For 22976/22976 co-relation queries the response was YES. [2022-01-18 23:24:09,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80890 conditions, 34867 events. 5303/34867 cut-off events. For 22976/22976 co-relation queries the response was YES. Maximal size of possible extension queue 794. Compared 475079 event pairs, 1268 based on Foata normal form. 216/35083 useless extension candidates. Maximal degree in co-relation 80872. Up to 11201 conditions per place. [2022-01-18 23:24:09,486 INFO L132 encePairwiseOnDemand]: 136/151 looper letters, 61 selfloop transitions, 29 changer transitions 0/182 dead transitions. [2022-01-18 23:24:09,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 182 transitions, 893 flow [2022-01-18 23:24:09,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 23:24:09,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-18 23:24:09,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2415 transitions. [2022-01-18 23:24:09,489 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.695364238410596 [2022-01-18 23:24:09,489 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2415 transitions. [2022-01-18 23:24:09,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2415 transitions. [2022-01-18 23:24:09,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:24:09,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2415 transitions. [2022-01-18 23:24:09,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 105.0) internal successors, (2415), 23 states have internal predecessors, (2415), 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) [2022-01-18 23:24:09,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 151.0) internal successors, (3624), 24 states have internal predecessors, (3624), 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) [2022-01-18 23:24:09,494 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 151.0) internal successors, (3624), 24 states have internal predecessors, (3624), 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) [2022-01-18 23:24:09,494 INFO L186 Difference]: Start difference. First operand has 163 places, 147 transitions, 565 flow. Second operand 23 states and 2415 transitions. [2022-01-18 23:24:09,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 182 transitions, 893 flow [2022-01-18 23:24:09,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 182 transitions, 872 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-01-18 23:24:09,527 INFO L242 Difference]: Finished difference. Result has 182 places, 155 transitions, 645 flow [2022-01-18 23:24:09,527 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=645, PETRI_PLACES=182, PETRI_TRANSITIONS=155} [2022-01-18 23:24:09,527 INFO L334 CegarLoopForPetriNet]: 147 programPoint places, 35 predicate places. [2022-01-18 23:24:09,527 INFO L470 AbstractCegarLoop]: Abstraction has has 182 places, 155 transitions, 645 flow [2022-01-18 23:24:09,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 104.57142857142857) internal successors, (2196), 21 states have internal predecessors, (2196), 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) [2022-01-18 23:24:09,528 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:24:09,528 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:24:09,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-18 23:24:09,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2022-01-18 23:24:09,728 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:24:09,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:24:09,729 INFO L85 PathProgramCache]: Analyzing trace with hash -721855566, now seen corresponding path program 1 times [2022-01-18 23:24:09,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:24:09,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264688774] [2022-01-18 23:24:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:24:09,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:24:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:24:09,803 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-01-18 23:24:09,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:24:09,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264688774] [2022-01-18 23:24:09,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264688774] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:24:09,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512104188] [2022-01-18 23:24:09,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:24:09,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:24:09,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:24:09,804 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:24:09,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-18 23:24:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:24:09,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 23:24:09,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:24:10,113 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-01-18 23:24:10,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:24:10,415 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-01-18 23:24:10,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512104188] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:24:10,416 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:24:10,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-01-18 23:24:10,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271177865] [2022-01-18 23:24:10,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:24:10,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 23:24:10,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:24:10,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 23:24:10,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-01-18 23:24:10,417 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 151 [2022-01-18 23:24:10,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 155 transitions, 645 flow. Second operand has 21 states, 21 states have (on average 105.0) internal successors, (2205), 21 states have internal predecessors, (2205), 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) [2022-01-18 23:24:10,418 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:24:10,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 151 [2022-01-18 23:24:10,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:24:17,060 INFO L129 PetriNetUnfolder]: 5303/43579 cut-off events. [2022-01-18 23:24:17,061 INFO L130 PetriNetUnfolder]: For 49998/49998 co-relation queries the response was YES. [2022-01-18 23:24:17,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118189 conditions, 43579 events. 5303/43579 cut-off events. For 49998/49998 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 631199 event pairs, 2236 based on Foata normal form. 1936/45515 useless extension candidates. Maximal degree in co-relation 118170. Up to 13569 conditions per place. [2022-01-18 23:24:17,427 INFO L132 encePairwiseOnDemand]: 136/151 looper letters, 52 selfloop transitions, 31 changer transitions 0/177 dead transitions. [2022-01-18 23:24:17,427 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 177 transitions, 906 flow [2022-01-18 23:24:17,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 23:24:17,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-18 23:24:17,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2405 transitions. [2022-01-18 23:24:17,429 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6924848833861215 [2022-01-18 23:24:17,429 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2405 transitions. [2022-01-18 23:24:17,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2405 transitions. [2022-01-18 23:24:17,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:24:17,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2405 transitions. [2022-01-18 23:24:17,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 104.56521739130434) internal successors, (2405), 23 states have internal predecessors, (2405), 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) [2022-01-18 23:24:17,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 151.0) internal successors, (3624), 24 states have internal predecessors, (3624), 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) [2022-01-18 23:24:17,434 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 151.0) internal successors, (3624), 24 states have internal predecessors, (3624), 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) [2022-01-18 23:24:17,434 INFO L186 Difference]: Start difference. First operand has 182 places, 155 transitions, 645 flow. Second operand 23 states and 2405 transitions. [2022-01-18 23:24:17,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 177 transitions, 906 flow [2022-01-18 23:24:17,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 177 transitions, 863 flow, removed 7 selfloop flow, removed 9 redundant places. [2022-01-18 23:24:17,538 INFO L242 Difference]: Finished difference. Result has 196 places, 161 transitions, 705 flow [2022-01-18 23:24:17,539 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=705, PETRI_PLACES=196, PETRI_TRANSITIONS=161} [2022-01-18 23:24:17,539 INFO L334 CegarLoopForPetriNet]: 147 programPoint places, 49 predicate places. [2022-01-18 23:24:17,539 INFO L470 AbstractCegarLoop]: Abstraction has has 196 places, 161 transitions, 705 flow [2022-01-18 23:24:17,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 105.0) internal successors, (2205), 21 states have internal predecessors, (2205), 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) [2022-01-18 23:24:17,539 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:24:17,539 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:24:17,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-18 23:24:17,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:24:17,747 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:24:17,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:24:17,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1444007648, now seen corresponding path program 2 times [2022-01-18 23:24:17,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:24:17,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308576511] [2022-01-18 23:24:17,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:24:17,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:24:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:24:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-18 23:24:17,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:24:17,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308576511] [2022-01-18 23:24:17,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308576511] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:24:17,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138507091] [2022-01-18 23:24:17,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 23:24:17,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:24:17,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:24:17,834 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:24:17,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-18 23:24:17,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 23:24:17,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 23:24:17,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 23:24:17,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:24:18,374 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-18 23:24:18,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:24:18,558 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-18 23:24:18,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138507091] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:24:18,559 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:24:18,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2022-01-18 23:24:18,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108275886] [2022-01-18 23:24:18,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:24:18,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 23:24:18,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:24:18,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 23:24:18,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2022-01-18 23:24:18,561 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 151 [2022-01-18 23:24:18,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 161 transitions, 705 flow. Second operand has 27 states, 27 states have (on average 100.96296296296296) internal successors, (2726), 27 states have internal predecessors, (2726), 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) [2022-01-18 23:24:18,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:24:18,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 151 [2022-01-18 23:24:18,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:24:25,555 INFO L129 PetriNetUnfolder]: 5285/43459 cut-off events. [2022-01-18 23:24:25,555 INFO L130 PetriNetUnfolder]: For 83480/83480 co-relation queries the response was YES. [2022-01-18 23:24:25,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132935 conditions, 43459 events. 5285/43459 cut-off events. For 83480/83480 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 631513 event pairs, 2242 based on Foata normal form. 2/43461 useless extension candidates. Maximal degree in co-relation 132915. Up to 15482 conditions per place. [2022-01-18 23:24:25,956 INFO L132 encePairwiseOnDemand]: 136/151 looper letters, 61 selfloop transitions, 30 changer transitions 0/185 dead transitions. [2022-01-18 23:24:25,956 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 185 transitions, 1005 flow [2022-01-18 23:24:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 23:24:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-18 23:24:25,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1851 transitions. [2022-01-18 23:24:25,958 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6810154525386314 [2022-01-18 23:24:25,958 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1851 transitions. [2022-01-18 23:24:25,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1851 transitions. [2022-01-18 23:24:25,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:24:25,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1851 transitions. [2022-01-18 23:24:25,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 102.83333333333333) internal successors, (1851), 18 states have internal predecessors, (1851), 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) [2022-01-18 23:24:25,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 151.0) internal successors, (2869), 19 states have internal predecessors, (2869), 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) [2022-01-18 23:24:25,961 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 151.0) internal successors, (2869), 19 states have internal predecessors, (2869), 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) [2022-01-18 23:24:25,961 INFO L186 Difference]: Start difference. First operand has 196 places, 161 transitions, 705 flow. Second operand 18 states and 1851 transitions. [2022-01-18 23:24:25,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 185 transitions, 1005 flow [2022-01-18 23:24:26,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 185 transitions, 937 flow, removed 0 selfloop flow, removed 15 redundant places. [2022-01-18 23:24:26,065 INFO L242 Difference]: Finished difference. Result has 201 places, 168 transitions, 785 flow [2022-01-18 23:24:26,065 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=785, PETRI_PLACES=201, PETRI_TRANSITIONS=168} [2022-01-18 23:24:26,066 INFO L334 CegarLoopForPetriNet]: 147 programPoint places, 54 predicate places. [2022-01-18 23:24:26,066 INFO L470 AbstractCegarLoop]: Abstraction has has 201 places, 168 transitions, 785 flow [2022-01-18 23:24:26,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 100.96296296296296) internal successors, (2726), 27 states have internal predecessors, (2726), 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) [2022-01-18 23:24:26,066 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:24:26,066 INFO L254 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:24:26,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-01-18 23:24:26,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:24:26,275 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:24:26,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:24:26,276 INFO L85 PathProgramCache]: Analyzing trace with hash 493188029, now seen corresponding path program 1 times [2022-01-18 23:24:26,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:24:26,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53726198] [2022-01-18 23:24:26,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:24:26,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:24:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:24:26,519 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 418 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:24:26,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:24:26,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53726198] [2022-01-18 23:24:26,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53726198] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:24:26,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831687370] [2022-01-18 23:24:26,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:24:26,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:24:26,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:24:26,521 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:24:26,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-18 23:24:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:24:26,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 27 conjunts are in the unsatisfiable core [2022-01-18 23:24:26,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:24:27,607 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:24:27,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 23:24:27,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831687370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:24:27,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 23:24:27,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [26] total 50 [2022-01-18 23:24:27,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960707457] [2022-01-18 23:24:27,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:24:27,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 23:24:27,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:24:27,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 23:24:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=1975, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 23:24:27,610 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 151 [2022-01-18 23:24:27,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 168 transitions, 785 flow. Second operand has 26 states, 26 states have (on average 100.6923076923077) internal successors, (2618), 26 states have internal predecessors, (2618), 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) [2022-01-18 23:24:27,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:24:27,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 151 [2022-01-18 23:24:27,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:24:35,476 INFO L129 PetriNetUnfolder]: 5285/43454 cut-off events. [2022-01-18 23:24:35,476 INFO L130 PetriNetUnfolder]: For 136516/136516 co-relation queries the response was YES. [2022-01-18 23:24:35,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144148 conditions, 43454 events. 5285/43454 cut-off events. For 136516/136516 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 631284 event pairs, 2242 based on Foata normal form. 1/43455 useless extension candidates. Maximal degree in co-relation 144125. Up to 19528 conditions per place. [2022-01-18 23:24:35,838 INFO L132 encePairwiseOnDemand]: 137/151 looper letters, 80 selfloop transitions, 45 changer transitions 0/218 dead transitions. [2022-01-18 23:24:35,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 218 transitions, 1343 flow [2022-01-18 23:24:35,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 23:24:35,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-01-18 23:24:35,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3648 transitions. [2022-01-18 23:24:35,842 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6710816777041942 [2022-01-18 23:24:35,842 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3648 transitions. [2022-01-18 23:24:35,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3648 transitions. [2022-01-18 23:24:35,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:24:35,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3648 transitions. [2022-01-18 23:24:35,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 101.33333333333333) internal successors, (3648), 36 states have internal predecessors, (3648), 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) [2022-01-18 23:24:35,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 151.0) internal successors, (5587), 37 states have internal predecessors, (5587), 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) [2022-01-18 23:24:35,848 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 151.0) internal successors, (5587), 37 states have internal predecessors, (5587), 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) [2022-01-18 23:24:35,848 INFO L186 Difference]: Start difference. First operand has 201 places, 168 transitions, 785 flow. Second operand 36 states and 3648 transitions. [2022-01-18 23:24:35,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 218 transitions, 1343 flow [2022-01-18 23:24:35,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 218 transitions, 1311 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-01-18 23:24:35,986 INFO L242 Difference]: Finished difference. Result has 225 places, 187 transitions, 972 flow [2022-01-18 23:24:35,986 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=972, PETRI_PLACES=225, PETRI_TRANSITIONS=187} [2022-01-18 23:24:35,986 INFO L334 CegarLoopForPetriNet]: 147 programPoint places, 78 predicate places. [2022-01-18 23:24:35,986 INFO L470 AbstractCegarLoop]: Abstraction has has 225 places, 187 transitions, 972 flow [2022-01-18 23:24:35,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 100.6923076923077) internal successors, (2618), 26 states have internal predecessors, (2618), 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) [2022-01-18 23:24:35,987 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:24:35,987 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:24:36,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-01-18 23:24:36,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-01-18 23:24:36,187 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:24:36,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:24:36,188 INFO L85 PathProgramCache]: Analyzing trace with hash -756280765, now seen corresponding path program 1 times [2022-01-18 23:24:36,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:24:36,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086458380] [2022-01-18 23:24:36,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:24:36,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:24:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:24:36,331 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 36 proven. 90 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 23:24:36,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:24:36,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086458380] [2022-01-18 23:24:36,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086458380] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:24:36,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978629350] [2022-01-18 23:24:36,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:24:36,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:24:36,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:24:36,333 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:24:36,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-01-18 23:24:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:24:36,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-18 23:24:36,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:24:36,761 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 64 proven. 62 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 23:24:36,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:24:36,989 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 64 proven. 62 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 23:24:36,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978629350] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:24:36,990 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:24:36,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 33 [2022-01-18 23:24:36,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291881210] [2022-01-18 23:24:36,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:24:36,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 23:24:36,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:24:36,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 23:24:36,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=889, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 23:24:36,993 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 151 [2022-01-18 23:24:36,995 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 187 transitions, 972 flow. Second operand has 33 states, 33 states have (on average 104.48484848484848) internal successors, (3448), 33 states have internal predecessors, (3448), 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) [2022-01-18 23:24:36,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:24:36,995 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 151 [2022-01-18 23:24:36,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:24:43,283 INFO L129 PetriNetUnfolder]: 6259/37108 cut-off events. [2022-01-18 23:24:43,283 INFO L130 PetriNetUnfolder]: For 118162/118162 co-relation queries the response was YES. [2022-01-18 23:24:43,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129562 conditions, 37108 events. 6259/37108 cut-off events. For 118162/118162 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 500402 event pairs, 244 based on Foata normal form. 786/37894 useless extension candidates. Maximal degree in co-relation 129539. Up to 11332 conditions per place. [2022-01-18 23:24:43,638 INFO L132 encePairwiseOnDemand]: 136/151 looper letters, 88 selfloop transitions, 65 changer transitions 0/246 dead transitions. [2022-01-18 23:24:43,638 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 246 transitions, 1587 flow [2022-01-18 23:24:43,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 23:24:43,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-01-18 23:24:43,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3869 transitions. [2022-01-18 23:24:43,641 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6925004474673349 [2022-01-18 23:24:43,641 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 3869 transitions. [2022-01-18 23:24:43,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 3869 transitions. [2022-01-18 23:24:43,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:24:43,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 3869 transitions. [2022-01-18 23:24:43,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 104.56756756756756) internal successors, (3869), 37 states have internal predecessors, (3869), 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) [2022-01-18 23:24:43,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 151.0) internal successors, (5738), 38 states have internal predecessors, (5738), 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) [2022-01-18 23:24:43,648 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 151.0) internal successors, (5738), 38 states have internal predecessors, (5738), 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) [2022-01-18 23:24:43,648 INFO L186 Difference]: Start difference. First operand has 225 places, 187 transitions, 972 flow. Second operand 37 states and 3869 transitions. [2022-01-18 23:24:43,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 246 transitions, 1587 flow [2022-01-18 23:24:43,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 246 transitions, 1497 flow, removed 7 selfloop flow, removed 18 redundant places. [2022-01-18 23:24:43,786 INFO L242 Difference]: Finished difference. Result has 244 places, 195 transitions, 1097 flow [2022-01-18 23:24:43,786 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=1097, PETRI_PLACES=244, PETRI_TRANSITIONS=195} [2022-01-18 23:24:43,786 INFO L334 CegarLoopForPetriNet]: 147 programPoint places, 97 predicate places. [2022-01-18 23:24:43,786 INFO L470 AbstractCegarLoop]: Abstraction has has 244 places, 195 transitions, 1097 flow [2022-01-18 23:24:43,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 104.48484848484848) internal successors, (3448), 33 states have internal predecessors, (3448), 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) [2022-01-18 23:24:43,787 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:24:43,787 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:24:43,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-01-18 23:24:44,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:24:44,003 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:24:44,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:24:44,003 INFO L85 PathProgramCache]: Analyzing trace with hash 446492981, now seen corresponding path program 1 times [2022-01-18 23:24:44,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:24:44,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295567904] [2022-01-18 23:24:44,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:24:44,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:24:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:24:44,177 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 36 proven. 93 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-01-18 23:24:44,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:24:44,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295567904] [2022-01-18 23:24:44,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295567904] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:24:44,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777040007] [2022-01-18 23:24:44,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:24:44,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:24:44,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:24:44,180 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:24:44,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-01-18 23:24:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:24:44,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-18 23:24:44,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:24:44,642 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 64 proven. 65 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-01-18 23:24:44,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:24:44,894 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 64 proven. 65 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-01-18 23:24:44,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777040007] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 23:24:44,894 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 23:24:44,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 33 [2022-01-18 23:24:44,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895382692] [2022-01-18 23:24:44,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 23:24:44,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 23:24:44,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:24:44,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 23:24:44,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=889, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 23:24:44,896 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 151 [2022-01-18 23:24:44,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 195 transitions, 1097 flow. Second operand has 33 states, 33 states have (on average 104.6969696969697) internal successors, (3455), 33 states have internal predecessors, (3455), 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) [2022-01-18 23:24:44,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:24:44,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 151 [2022-01-18 23:24:44,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:24:53,290 INFO L129 PetriNetUnfolder]: 6259/46040 cut-off events. [2022-01-18 23:24:53,291 INFO L130 PetriNetUnfolder]: For 219807/219807 co-relation queries the response was YES. [2022-01-18 23:24:53,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182681 conditions, 46040 events. 6259/46040 cut-off events. For 219807/219807 co-relation queries the response was YES. Maximal size of possible extension queue 671. Compared 658925 event pairs, 3405 based on Foata normal form. 1276/47316 useless extension candidates. Maximal degree in co-relation 182657. Up to 14715 conditions per place. [2022-01-18 23:24:53,733 INFO L132 encePairwiseOnDemand]: 136/151 looper letters, 60 selfloop transitions, 68 changer transitions 0/223 dead transitions. [2022-01-18 23:24:53,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 223 transitions, 1524 flow [2022-01-18 23:24:53,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 23:24:53,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-01-18 23:24:53,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3839 transitions. [2022-01-18 23:24:53,735 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6871308394487202 [2022-01-18 23:24:53,736 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 3839 transitions. [2022-01-18 23:24:53,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 3839 transitions. [2022-01-18 23:24:53,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:24:53,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 3839 transitions. [2022-01-18 23:24:53,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 103.75675675675676) internal successors, (3839), 37 states have internal predecessors, (3839), 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) [2022-01-18 23:24:53,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 151.0) internal successors, (5738), 38 states have internal predecessors, (5738), 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) [2022-01-18 23:24:53,742 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 151.0) internal successors, (5738), 38 states have internal predecessors, (5738), 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) [2022-01-18 23:24:53,742 INFO L186 Difference]: Start difference. First operand has 244 places, 195 transitions, 1097 flow. Second operand 37 states and 3839 transitions. [2022-01-18 23:24:53,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 223 transitions, 1524 flow [2022-01-18 23:24:53,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 223 transitions, 1328 flow, removed 11 selfloop flow, removed 28 redundant places. [2022-01-18 23:24:53,991 INFO L242 Difference]: Finished difference. Result has 253 places, 202 transitions, 1129 flow [2022-01-18 23:24:53,991 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=1129, PETRI_PLACES=253, PETRI_TRANSITIONS=202} [2022-01-18 23:24:53,991 INFO L334 CegarLoopForPetriNet]: 147 programPoint places, 106 predicate places. [2022-01-18 23:24:53,991 INFO L470 AbstractCegarLoop]: Abstraction has has 253 places, 202 transitions, 1129 flow [2022-01-18 23:24:53,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 104.6969696969697) internal successors, (3455), 33 states have internal predecessors, (3455), 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) [2022-01-18 23:24:53,992 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:24:53,992 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:24:54,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-01-18 23:24:54,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:24:54,203 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:24:54,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:24:54,204 INFO L85 PathProgramCache]: Analyzing trace with hash -394248889, now seen corresponding path program 2 times [2022-01-18 23:24:54,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:24:54,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104006417] [2022-01-18 23:24:54,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:24:54,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:24:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:24:54,855 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 27 proven. 87 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-01-18 23:24:54,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:24:54,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104006417] [2022-01-18 23:24:54,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104006417] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 23:24:54,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560804019] [2022-01-18 23:24:54,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 23:24:54,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:24:54,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:24:54,856 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 23:24:54,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-01-18 23:24:55,015 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 23:24:55,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 23:24:55,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 38 conjunts are in the unsatisfiable core [2022-01-18 23:24:55,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 23:24:55,119 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-01-18 23:24:55,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 23:24:55,248 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-01-18 23:24:55,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 23:24:55,365 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-01-18 23:24:55,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 23:24:55,466 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-01-18 23:24:55,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 23:24:55,566 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-01-18 23:24:55,652 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-01-18 23:24:55,794 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 37 proven. 77 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-01-18 23:24:55,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 23:25:04,452 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_178| Int)) (or (and (forall ((v_ArrVal_811 Int)) (let ((.cse0 (mod (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (<= .cse0 2147483647) (not (= c_thrThread2of10ForFork0_thidvar0 (+ .cse0 (- 4294967296))))))) (forall ((v_ArrVal_811 Int)) (let ((.cse1 (mod (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (not (<= .cse1 2147483647)) (not (= c_thrThread2of10ForFork0_thidvar0 .cse1)))))) (< |v_ULTIMATE.start_main_~i~0#1_178| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-01-18 23:25:07,148 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_179| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_179|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_178| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_178| (+ |v_ULTIMATE.start_main_~i~0#1_179| 1)) (and (forall ((v_ArrVal_811 Int) (v_ArrVal_810 Int)) (let ((.cse0 (mod (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_179| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (<= .cse0 2147483647) (not (= c_thrThread2of10ForFork0_thidvar0 (+ .cse0 (- 4294967296))))))) (forall ((v_ArrVal_811 Int) (v_ArrVal_810 Int)) (let ((.cse1 (mod (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_179| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (not (= c_thrThread2of10ForFork0_thidvar0 .cse1)) (not (<= .cse1 2147483647)))))))))) is different from false [2022-01-18 23:25:26,503 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_179| Int) (|v_ULTIMATE.start_main_~i~0#1_178| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_178| (+ |v_ULTIMATE.start_main_~i~0#1_179| 1)) (and (forall ((v_ArrVal_808 Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int)) (let ((.cse0 (mod (select (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_808) (+ (* |v_ULTIMATE.start_main_~i~0#1_179| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (<= .cse0 2147483647) (not (= c_thrThread2of10ForFork0_thidvar0 (+ .cse0 (- 4294967296))))))) (forall ((v_ArrVal_808 Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int)) (let ((.cse1 (mod (select (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_808) (+ (* |v_ULTIMATE.start_main_~i~0#1_179| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (not (<= .cse1 2147483647)) (not (= c_thrThread2of10ForFork0_thidvar0 .cse1)))))) (< |v_ULTIMATE.start_main_~i~0#1_179| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-01-18 23:25:29,636 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_180| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_179| Int) (|v_ULTIMATE.start_main_~i~0#1_178| Int)) (or (and (forall ((v_ArrVal_808 Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int)) (let ((.cse0 (mod (select (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_180| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_808) (+ (* |v_ULTIMATE.start_main_~i~0#1_179| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (not (<= .cse0 2147483647)) (not (= .cse0 c_thrThread2of10ForFork0_thidvar0))))) (forall ((v_ArrVal_808 Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int)) (let ((.cse1 (mod (select (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_180| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_808) (+ (* |v_ULTIMATE.start_main_~i~0#1_179| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (<= .cse1 2147483647) (not (= (+ .cse1 (- 4294967296)) c_thrThread2of10ForFork0_thidvar0)))))) (< |v_ULTIMATE.start_main_~i~0#1_179| (+ |v_ULTIMATE.start_main_~i~0#1_180| 1)) (< |v_ULTIMATE.start_main_~i~0#1_178| (+ |v_ULTIMATE.start_main_~i~0#1_179| 1)))) (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_180|)))) is different from false [2022-01-18 23:25:51,553 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_179| Int) (|v_ULTIMATE.start_main_~i~0#1_178| Int) (|v_ULTIMATE.start_main_~i~0#1_180| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_180| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_179| (+ |v_ULTIMATE.start_main_~i~0#1_180| 1)) (< |v_ULTIMATE.start_main_~i~0#1_178| (+ |v_ULTIMATE.start_main_~i~0#1_179| 1)) (and (forall ((v_ArrVal_808 Int) (v_ArrVal_805 Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int)) (let ((.cse0 (mod (select (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_805) (+ (* |v_ULTIMATE.start_main_~i~0#1_180| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_808) (+ (* |v_ULTIMATE.start_main_~i~0#1_179| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (not (<= .cse0 2147483647)) (not (= .cse0 |c_ULTIMATE.start_main_#t~pre5#1|))))) (forall ((v_ArrVal_808 Int) (v_ArrVal_805 Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int)) (let ((.cse1 (mod (select (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_805) (+ (* |v_ULTIMATE.start_main_~i~0#1_180| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_808) (+ (* |v_ULTIMATE.start_main_~i~0#1_179| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (<= .cse1 2147483647) (not (= (+ .cse1 (- 4294967296)) |c_ULTIMATE.start_main_#t~pre5#1|)))))))) is different from false [2022-01-18 23:26:03,944 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_181| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_181|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_179| Int) (|v_ULTIMATE.start_main_~i~0#1_178| Int) (|v_ULTIMATE.start_main_~i~0#1_180| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_179| (+ |v_ULTIMATE.start_main_~i~0#1_180| 1)) (and (forall ((v_ArrVal_808 Int) (v_ArrVal_805 Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int)) (let ((.cse0 (mod (select (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_181| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_805) (+ (* |v_ULTIMATE.start_main_~i~0#1_180| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_808) (+ (* |v_ULTIMATE.start_main_~i~0#1_179| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (<= .cse0 2147483647) (not (= (+ .cse0 (- 4294967296)) |c_#pthreadsForks|))))) (forall ((v_ArrVal_808 Int) (v_ArrVal_805 Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int)) (let ((.cse1 (mod (select (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_181| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_805) (+ (* |v_ULTIMATE.start_main_~i~0#1_180| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_808) (+ (* |v_ULTIMATE.start_main_~i~0#1_179| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (not (<= .cse1 2147483647)) (not (= .cse1 |c_#pthreadsForks|)))))) (< |v_ULTIMATE.start_main_~i~0#1_178| (+ |v_ULTIMATE.start_main_~i~0#1_179| 1)) (< |v_ULTIMATE.start_main_~i~0#1_180| (+ |v_ULTIMATE.start_main_~i~0#1_181| 1)))))) is different from false [2022-01-18 23:26:05,145 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_179| Int) (|v_ULTIMATE.start_main_~i~0#1_178| Int) (|v_ULTIMATE.start_main_~i~0#1_181| Int) (|v_ULTIMATE.start_main_~i~0#1_180| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_179| (+ |v_ULTIMATE.start_main_~i~0#1_180| 1)) (and (forall ((v_ArrVal_808 Int) (v_ArrVal_805 Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int)) (let ((.cse0 (mod (select (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_181| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_805) (+ (* |v_ULTIMATE.start_main_~i~0#1_180| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_808) (+ (* |v_ULTIMATE.start_main_~i~0#1_179| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (<= .cse0 2147483647) (not (= (+ .cse0 (- 4294967296)) |c_#pthreadsForks|))))) (forall ((v_ArrVal_808 Int) (v_ArrVal_805 Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int)) (let ((.cse1 (mod (select (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_181| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_805) (+ (* |v_ULTIMATE.start_main_~i~0#1_180| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_808) (+ (* |v_ULTIMATE.start_main_~i~0#1_179| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~0#1_178| 4) |c_ULTIMATE.start_main_~#t~1#1.offset|) v_ArrVal_811) |c_ULTIMATE.start_main_~#t~1#1.offset|) 4294967296))) (or (not (<= .cse1 2147483647)) (not (= .cse1 |c_#pthreadsForks|)))))) (< |v_ULTIMATE.start_main_~i~0#1_178| (+ |v_ULTIMATE.start_main_~i~0#1_179| 1)) (< |v_ULTIMATE.start_main_~i~0#1_181| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_180| (+ |v_ULTIMATE.start_main_~i~0#1_181| 1)))) is different from false [2022-01-18 23:26:07,122 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 176 [2022-01-18 23:26:07,172 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1001914 treesize of output 999354 [2022-01-18 23:26:09,372 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2022-01-18 23:26:09,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-01-18 23:26:09,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 23:26:09,588 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-18 23:26:09,589 INFO L158 Benchmark]: Toolchain (without parser) took 176819.46ms. Allocated memory was 255.9MB in the beginning and 11.1GB in the end (delta: 10.8GB). Free memory was 207.4MB in the beginning and 4.7GB in the end (delta: -4.4GB). Peak memory consumption was 6.4GB. Max. memory is 16.0GB. [2022-01-18 23:26:09,589 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 225.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 23:26:09,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.36ms. Allocated memory was 255.9MB in the beginning and 341.8MB in the end (delta: 86.0MB). Free memory was 207.3MB in the beginning and 312.5MB in the end (delta: -105.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 23:26:09,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.58ms. Allocated memory is still 341.8MB. Free memory was 312.5MB in the beginning and 310.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:26:09,590 INFO L158 Benchmark]: Boogie Preprocessor took 25.27ms. Allocated memory is still 341.8MB. Free memory was 310.4MB in the beginning and 309.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:26:09,590 INFO L158 Benchmark]: RCFGBuilder took 337.21ms. Allocated memory is still 341.8MB. Free memory was 309.0MB in the beginning and 296.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 23:26:09,590 INFO L158 Benchmark]: TraceAbstraction took 176009.05ms. Allocated memory was 341.8MB in the beginning and 11.1GB in the end (delta: 10.8GB). Free memory was 296.1MB in the beginning and 4.7GB in the end (delta: -4.4GB). Peak memory consumption was 6.4GB. Max. memory is 16.0GB. [2022-01-18 23:26:09,591 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 255.9MB. Free memory is still 225.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 411.36ms. Allocated memory was 255.9MB in the beginning and 341.8MB in the end (delta: 86.0MB). Free memory was 207.3MB in the beginning and 312.5MB in the end (delta: -105.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.58ms. Allocated memory is still 341.8MB. Free memory was 312.5MB in the beginning and 310.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.27ms. Allocated memory is still 341.8MB. Free memory was 310.4MB in the beginning and 309.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 337.21ms. Allocated memory is still 341.8MB. Free memory was 309.0MB in the beginning and 296.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 176009.05ms. Allocated memory was 341.8MB in the beginning and 11.1GB in the end (delta: 10.8GB). Free memory was 296.1MB in the beginning and 4.7GB in the end (delta: -4.4GB). Peak memory consumption was 6.4GB. 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-18 23:26:09,616 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...