/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/airline-15.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 23:22:19,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 23:22:19,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 23:22:19,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-10 23:22:19,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 23:22:19,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 23:22:19,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 23:22:19,229 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-FA-NoLbe.epf [2022-02-10 23:22:19,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 23:22:19,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 23:22:19,246 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 23:22:19,246 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 23:22:19,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 23:22:19,247 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 23:22:19,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 23:22:19,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 23:22:19,247 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 23:22:19,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 23:22:19,247 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 23:22:19,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 23:22:19,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 23:22:19,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 23:22:19,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 23:22:19,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 23:22:19,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 23:22:19,248 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 23:22:19,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 23:22:19,248 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 23:22:19,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 23:22:19,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 23:22:19,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 23:22:19,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 23:22:19,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 23:22:19,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:22:19,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 23:22:19,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 23:22:19,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 23:22:19,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 23:22:19,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 23:22:19,250 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 23:22:19,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 23:22:19,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 23:22:19,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 23:22:19,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 23:22:19,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 23:22:19,417 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 23:22:19,417 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 23:22:19,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/airline-15.i [2022-02-10 23:22:19,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a941a3c8/6ef3ab50e3064adeb5ee3d81cc16452b/FLAGae9d6c99f [2022-02-10 23:22:19,856 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 23:22:19,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/airline-15.i [2022-02-10 23:22:19,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a941a3c8/6ef3ab50e3064adeb5ee3d81cc16452b/FLAGae9d6c99f [2022-02-10 23:22:19,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a941a3c8/6ef3ab50e3064adeb5ee3d81cc16452b [2022-02-10 23:22:19,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 23:22:19,889 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 23:22:19,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 23:22:19,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 23:22:19,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 23:22:19,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:22:19" (1/1) ... [2022-02-10 23:22:19,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e8402c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:19, skipping insertion in model container [2022-02-10 23:22:19,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:22:19" (1/1) ... [2022-02-10 23:22:19,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 23:22:19,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 23:22:20,124 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-deagle/airline-15.i[32101,32114] [2022-02-10 23:22:20,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:22:20,130 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 23:22:20,154 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-deagle/airline-15.i[32101,32114] [2022-02-10 23:22:20,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:22:20,171 INFO L208 MainTranslator]: Completed translation [2022-02-10 23:22:20,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:20 WrapperNode [2022-02-10 23:22:20,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 23:22:20,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 23:22:20,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 23:22:20,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 23:22:20,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:20" (1/1) ... [2022-02-10 23:22:20,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:20" (1/1) ... [2022-02-10 23:22:20,209 INFO L137 Inliner]: procedures = 162, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2022-02-10 23:22:20,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 23:22:20,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 23:22:20,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 23:22:20,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 23:22:20,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:20" (1/1) ... [2022-02-10 23:22:20,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:20" (1/1) ... [2022-02-10 23:22:20,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:20" (1/1) ... [2022-02-10 23:22:20,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:20" (1/1) ... [2022-02-10 23:22:20,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:20" (1/1) ... [2022-02-10 23:22:20,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:20" (1/1) ... [2022-02-10 23:22:20,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:20" (1/1) ... [2022-02-10 23:22:20,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 23:22:20,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 23:22:20,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 23:22:20,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 23:22:20,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:20" (1/1) ... [2022-02-10 23:22:20,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:22:20,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:22:20,262 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) [2022-02-10 23:22:20,266 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 [2022-02-10 23:22:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 23:22:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 23:22:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 23:22:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 23:22:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 23:22:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2022-02-10 23:22:20,288 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2022-02-10 23:22:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 23:22:20,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 23:22:20,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 23:22:20,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 23:22:20,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 23:22:20,291 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 23:22:20,409 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 23:22:20,415 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 23:22:20,542 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 23:22:20,548 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 23:22:20,549 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-10 23:22:20,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:22:20 BoogieIcfgContainer [2022-02-10 23:22:20,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 23:22:20,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 23:22:20,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 23:22:20,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 23:22:20,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 11:22:19" (1/3) ... [2022-02-10 23:22:20,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a944de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:22:20, skipping insertion in model container [2022-02-10 23:22:20,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:22:20" (2/3) ... [2022-02-10 23:22:20,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a944de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:22:20, skipping insertion in model container [2022-02-10 23:22:20,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:22:20" (3/3) ... [2022-02-10 23:22:20,556 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-15.i [2022-02-10 23:22:20,560 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 23:22:20,560 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 23:22:20,560 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 23:22:20,560 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 23:22:20,587 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,587 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,587 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,587 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,588 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,588 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,588 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,588 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,588 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,588 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,589 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,589 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,589 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,590 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,590 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,590 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,591 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,591 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,591 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,592 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,594 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,594 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,594 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,595 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,595 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:20,600 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 23:22:20,638 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:22:20,651 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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 [2022-02-10 23:22:20,651 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:22:20,660 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 69 transitions, 146 flow [2022-02-10 23:22:20,701 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 284 states, 279 states have (on average 2.060931899641577) internal successors, (575), 283 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:22:20,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 284 states, 279 states have (on average 2.060931899641577) internal successors, (575), 283 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:22:20,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:22:20,709 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:20,709 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:20,709 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:20,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:20,713 INFO L85 PathProgramCache]: Analyzing trace with hash 439318582, now seen corresponding path program 1 times [2022-02-10 23:22:20,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:20,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594690600] [2022-02-10 23:22:20,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:20,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:20,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:22:20,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:22:20,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594690600] [2022-02-10 23:22:20,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594690600] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:22:20,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:22:20,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:22:20,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528763229] [2022-02-10 23:22:20,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:22:20,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:22:20,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:22:20,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:22:20,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:22:20,902 INFO L87 Difference]: Start difference. First operand has 284 states, 279 states have (on average 2.060931899641577) internal successors, (575), 283 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-02-10 23:22:20,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:22:20,936 INFO L93 Difference]: Finished difference Result 275 states and 527 transitions. [2022-02-10 23:22:20,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:22:20,938 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) Word has length 30 [2022-02-10 23:22:20,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:22:20,949 INFO L225 Difference]: With dead ends: 275 [2022-02-10 23:22:20,949 INFO L226 Difference]: Without dead ends: 210 [2022-02-10 23:22:20,951 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:22:20,953 INFO L934 BasicCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:22:20,955 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:22:20,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-10 23:22:20,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-02-10 23:22:21,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 207 states have (on average 1.893719806763285) internal successors, (392), 209 states have internal predecessors, (392), 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) [2022-02-10 23:22:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 392 transitions. [2022-02-10 23:22:21,003 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 392 transitions. Word has length 30 [2022-02-10 23:22:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:22:21,003 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 392 transitions. [2022-02-10 23:22:21,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-02-10 23:22:21,004 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 392 transitions. [2022-02-10 23:22:21,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:22:21,004 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:21,004 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:21,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 23:22:21,006 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:21,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:21,007 INFO L85 PathProgramCache]: Analyzing trace with hash 467977524, now seen corresponding path program 1 times [2022-02-10 23:22:21,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:21,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109527187] [2022-02-10 23:22:21,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:21,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:22:21,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:22:21,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109527187] [2022-02-10 23:22:21,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109527187] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:22:21,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:22:21,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:22:21,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891275490] [2022-02-10 23:22:21,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:22:21,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:22:21,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:22:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:22:21,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:22:21,092 INFO L87 Difference]: Start difference. First operand 210 states and 392 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-02-10 23:22:21,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:22:21,117 INFO L93 Difference]: Finished difference Result 209 states and 390 transitions. [2022-02-10 23:22:21,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:22:21,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) Word has length 30 [2022-02-10 23:22:21,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:22:21,120 INFO L225 Difference]: With dead ends: 209 [2022-02-10 23:22:21,120 INFO L226 Difference]: Without dead ends: 209 [2022-02-10 23:22:21,120 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:22:21,121 INFO L934 BasicCegarLoop]: 53 mSDtfsCounter, 18 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:22:21,121 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 100 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:22:21,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-02-10 23:22:21,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2022-02-10 23:22:21,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 206 states have (on average 1.8932038834951457) internal successors, (390), 208 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) [2022-02-10 23:22:21,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 390 transitions. [2022-02-10 23:22:21,129 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 390 transitions. Word has length 30 [2022-02-10 23:22:21,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:22:21,130 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 390 transitions. [2022-02-10 23:22:21,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-02-10 23:22:21,131 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 390 transitions. [2022-02-10 23:22:21,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-10 23:22:21,132 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:21,133 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:21,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 23:22:21,133 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:21,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:21,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2028145231, now seen corresponding path program 1 times [2022-02-10 23:22:21,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:21,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050014158] [2022-02-10 23:22:21,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:21,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:22:21,175 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:22:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:22:21,200 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:22:21,201 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:22:21,201 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 23:22:21,202 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 23:22:21,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 23:22:21,204 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-10 23:22:21,205 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 23:22:21,205 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-10 23:22:21,214 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,214 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,214 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,214 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,214 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,214 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,214 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,214 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,215 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,215 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,215 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,215 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,215 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,215 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,215 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,215 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,215 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,216 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,216 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,216 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,216 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,216 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,216 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,216 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,216 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,216 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,217 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,217 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,217 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,217 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,217 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,217 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,217 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,217 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,217 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,218 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,218 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,218 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,218 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,218 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,218 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,219 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,219 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,219 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,219 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,219 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,219 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,219 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,219 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,220 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:21,221 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 23:22:21,222 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:22:21,222 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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 [2022-02-10 23:22:21,222 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:22:21,223 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 81 transitions, 180 flow [2022-02-10 23:22:21,278 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2669 states, 2660 states have (on average 3.0973684210526318) internal successors, (8239), 2668 states have internal predecessors, (8239), 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) [2022-02-10 23:22:21,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 2669 states, 2660 states have (on average 3.0973684210526318) internal successors, (8239), 2668 states have internal predecessors, (8239), 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) [2022-02-10 23:22:21,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:22:21,284 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:21,284 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:21,284 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:21,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:21,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1619998698, now seen corresponding path program 1 times [2022-02-10 23:22:21,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:21,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950226110] [2022-02-10 23:22:21,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:21,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:21,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:22:21,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:22:21,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950226110] [2022-02-10 23:22:21,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950226110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:22:21,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:22:21,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:22:21,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587208192] [2022-02-10 23:22:21,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:22:21,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:22:21,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:22:21,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:22:21,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:22:21,317 INFO L87 Difference]: Start difference. First operand has 2669 states, 2660 states have (on average 3.0973684210526318) internal successors, (8239), 2668 states have internal predecessors, (8239), 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) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-02-10 23:22:21,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:22:21,366 INFO L93 Difference]: Finished difference Result 2570 states and 7650 transitions. [2022-02-10 23:22:21,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:22:21,367 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) Word has length 30 [2022-02-10 23:22:21,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:22:21,387 INFO L225 Difference]: With dead ends: 2570 [2022-02-10 23:22:21,387 INFO L226 Difference]: Without dead ends: 1875 [2022-02-10 23:22:21,388 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:22:21,394 INFO L934 BasicCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:22:21,394 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:22:21,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2022-02-10 23:22:21,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1875. [2022-02-10 23:22:21,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1870 states have (on average 2.9705882352941178) internal successors, (5555), 1874 states have internal predecessors, (5555), 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) [2022-02-10 23:22:21,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 5555 transitions. [2022-02-10 23:22:21,480 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 5555 transitions. Word has length 30 [2022-02-10 23:22:21,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:22:21,481 INFO L470 AbstractCegarLoop]: Abstraction has 1875 states and 5555 transitions. [2022-02-10 23:22:21,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-02-10 23:22:21,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 5555 transitions. [2022-02-10 23:22:21,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:22:21,485 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:21,485 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:21,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 23:22:21,485 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:21,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:21,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1591339756, now seen corresponding path program 1 times [2022-02-10 23:22:21,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:21,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005095992] [2022-02-10 23:22:21,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:21,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:21,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:22:21,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:22:21,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005095992] [2022-02-10 23:22:21,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005095992] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:22:21,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:22:21,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:22:21,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007174872] [2022-02-10 23:22:21,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:22:21,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:22:21,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:22:21,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:22:21,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:22:21,540 INFO L87 Difference]: Start difference. First operand 1875 states and 5555 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-02-10 23:22:21,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:22:21,579 INFO L93 Difference]: Finished difference Result 1874 states and 5553 transitions. [2022-02-10 23:22:21,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:22:21,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) Word has length 30 [2022-02-10 23:22:21,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:22:21,588 INFO L225 Difference]: With dead ends: 1874 [2022-02-10 23:22:21,588 INFO L226 Difference]: Without dead ends: 1874 [2022-02-10 23:22:21,588 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:22:21,591 INFO L934 BasicCegarLoop]: 63 mSDtfsCounter, 18 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:22:21,592 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 122 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:22:21,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2022-02-10 23:22:21,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1874. [2022-02-10 23:22:21,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1869 states have (on average 2.971107544141252) internal successors, (5553), 1873 states have internal predecessors, (5553), 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) [2022-02-10 23:22:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 5553 transitions. [2022-02-10 23:22:21,633 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 5553 transitions. Word has length 30 [2022-02-10 23:22:21,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:22:21,635 INFO L470 AbstractCegarLoop]: Abstraction has 1874 states and 5553 transitions. [2022-02-10 23:22:21,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-02-10 23:22:21,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 5553 transitions. [2022-02-10 23:22:21,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-02-10 23:22:21,636 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:21,636 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:21,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 23:22:21,636 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:21,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:21,636 INFO L85 PathProgramCache]: Analyzing trace with hash -776830794, now seen corresponding path program 1 times [2022-02-10 23:22:21,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:21,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252329066] [2022-02-10 23:22:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:21,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:22:21,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:22:21,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252329066] [2022-02-10 23:22:21,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252329066] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:22:21,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662580034] [2022-02-10 23:22:21,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:21,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:22:21,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:22:21,708 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) [2022-02-10 23:22:21,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 23:22:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:21,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-10 23:22:21,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:22:21,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:22:21,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:22:21,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662580034] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:22:21,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 23:22:21,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-10 23:22:21,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644706392] [2022-02-10 23:22:21,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:22:21,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:22:21,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:22:21,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:22:21,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:22:21,866 INFO L87 Difference]: Start difference. First operand 1874 states and 5553 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-02-10 23:22:21,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:22:21,888 INFO L93 Difference]: Finished difference Result 1580 states and 4561 transitions. [2022-02-10 23:22:21,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:22:21,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) Word has length 40 [2022-02-10 23:22:21,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:22:21,895 INFO L225 Difference]: With dead ends: 1580 [2022-02-10 23:22:21,895 INFO L226 Difference]: Without dead ends: 1580 [2022-02-10 23:22:21,895 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:22:21,895 INFO L934 BasicCegarLoop]: 83 mSDtfsCounter, 26 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:22:21,896 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 142 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:22:21,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-02-10 23:22:21,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1559. [2022-02-10 23:22:21,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1555 states have (on average 2.9118971061093246) internal successors, (4528), 1558 states have internal predecessors, (4528), 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) [2022-02-10 23:22:21,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 4528 transitions. [2022-02-10 23:22:21,938 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 4528 transitions. Word has length 40 [2022-02-10 23:22:21,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:22:21,938 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 4528 transitions. [2022-02-10 23:22:21,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-02-10 23:22:21,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 4528 transitions. [2022-02-10 23:22:21,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-10 23:22:21,940 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:21,940 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:21,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-10 23:22:22,141 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,SelfDestructingSolverStorable5 [2022-02-10 23:22:22,141 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:22,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:22,142 INFO L85 PathProgramCache]: Analyzing trace with hash 638183219, now seen corresponding path program 1 times [2022-02-10 23:22:22,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:22,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907795620] [2022-02-10 23:22:22,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:22,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:22:22,157 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:22:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:22:22,169 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:22:22,169 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:22:22,169 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 23:22:22,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 23:22:22,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 23:22:22,169 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-10 23:22:22,170 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 23:22:22,170 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-02-10 23:22:22,185 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,185 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,185 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,185 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,185 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,185 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,185 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,185 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,186 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,186 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,186 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,186 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,186 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,187 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,187 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,187 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,188 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,188 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,188 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,188 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,189 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,189 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,189 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,189 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,189 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,189 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,189 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,189 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,189 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,190 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,190 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,190 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,190 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,190 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,190 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,191 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,191 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,191 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,191 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,191 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,191 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,191 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,191 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,192 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,192 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,192 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,192 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,192 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,196 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,196 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,196 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,197 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,197 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,197 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,197 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,197 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,199 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,200 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,200 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,200 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,200 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,200 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,200 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,200 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,200 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,202 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,202 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,202 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,202 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,202 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,203 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,203 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,203 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,203 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,203 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:22,205 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-10 23:22:22,206 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:22:22,206 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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 [2022-02-10 23:22:22,206 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:22:22,207 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 88 places, 93 transitions, 216 flow [2022-02-10 23:22:22,853 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 25844 states, 25827 states have (on average 4.12684400046463) internal successors, (106584), 25843 states have internal predecessors, (106584), 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) [2022-02-10 23:22:22,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 25844 states, 25827 states have (on average 4.12684400046463) internal successors, (106584), 25843 states have internal predecessors, (106584), 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) [2022-02-10 23:22:22,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:22:22,900 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:22,900 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:22,901 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:22,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:22,901 INFO L85 PathProgramCache]: Analyzing trace with hash -962015626, now seen corresponding path program 1 times [2022-02-10 23:22:22,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:22,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488278457] [2022-02-10 23:22:22,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:22,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:22,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:22:22,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:22:22,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488278457] [2022-02-10 23:22:22,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488278457] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:22:22,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:22:22,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:22:22,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232092058] [2022-02-10 23:22:22,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:22:22,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:22:22,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:22:22,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:22:22,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:22:23,036 INFO L87 Difference]: Start difference. First operand has 25844 states, 25827 states have (on average 4.12684400046463) internal successors, (106584), 25843 states have internal predecessors, (106584), 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) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-02-10 23:22:23,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:22:23,421 INFO L93 Difference]: Finished difference Result 24845 states and 99766 transitions. [2022-02-10 23:22:23,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:22:23,425 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) Word has length 30 [2022-02-10 23:22:23,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:22:23,558 INFO L225 Difference]: With dead ends: 24845 [2022-02-10 23:22:23,560 INFO L226 Difference]: Without dead ends: 17850 [2022-02-10 23:22:23,565 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:22:23,566 INFO L934 BasicCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:22:23,567 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:22:23,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17850 states. [2022-02-10 23:22:24,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17850 to 17850. [2022-02-10 23:22:24,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17850 states, 17841 states have (on average 4.02281262261084) internal successors, (71771), 17849 states have internal predecessors, (71771), 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) [2022-02-10 23:22:24,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17850 states to 17850 states and 71771 transitions. [2022-02-10 23:22:24,308 INFO L78 Accepts]: Start accepts. Automaton has 17850 states and 71771 transitions. Word has length 30 [2022-02-10 23:22:24,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:22:24,308 INFO L470 AbstractCegarLoop]: Abstraction has 17850 states and 71771 transitions. [2022-02-10 23:22:24,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-02-10 23:22:24,308 INFO L276 IsEmpty]: Start isEmpty. Operand 17850 states and 71771 transitions. [2022-02-10 23:22:24,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:22:24,309 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:24,309 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:24,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 23:22:24,309 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:24,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:24,309 INFO L85 PathProgramCache]: Analyzing trace with hash -933356684, now seen corresponding path program 1 times [2022-02-10 23:22:24,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:24,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339304016] [2022-02-10 23:22:24,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:24,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:24,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:22:24,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:22:24,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339304016] [2022-02-10 23:22:24,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339304016] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:22:24,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:22:24,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:22:24,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218908430] [2022-02-10 23:22:24,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:22:24,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:22:24,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:22:24,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:22:24,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:22:24,335 INFO L87 Difference]: Start difference. First operand 17850 states and 71771 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-02-10 23:22:24,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:22:24,569 INFO L93 Difference]: Finished difference Result 17849 states and 71769 transitions. [2022-02-10 23:22:24,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:22:24,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) Word has length 30 [2022-02-10 23:22:24,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:22:24,671 INFO L225 Difference]: With dead ends: 17849 [2022-02-10 23:22:24,672 INFO L226 Difference]: Without dead ends: 17849 [2022-02-10 23:22:24,672 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:22:24,673 INFO L934 BasicCegarLoop]: 73 mSDtfsCounter, 18 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:22:24,673 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 142 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:22:24,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17849 states. [2022-02-10 23:22:25,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17849 to 17849. [2022-02-10 23:22:25,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17849 states, 17840 states have (on average 4.02292600896861) internal successors, (71769), 17848 states have internal predecessors, (71769), 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) [2022-02-10 23:22:25,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17849 states to 17849 states and 71769 transitions. [2022-02-10 23:22:25,251 INFO L78 Accepts]: Start accepts. Automaton has 17849 states and 71769 transitions. Word has length 30 [2022-02-10 23:22:25,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:22:25,252 INFO L470 AbstractCegarLoop]: Abstraction has 17849 states and 71769 transitions. [2022-02-10 23:22:25,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-02-10 23:22:25,252 INFO L276 IsEmpty]: Start isEmpty. Operand 17849 states and 71769 transitions. [2022-02-10 23:22:25,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-02-10 23:22:25,252 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:25,252 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:25,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 23:22:25,253 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:25,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:25,253 INFO L85 PathProgramCache]: Analyzing trace with hash 96906988, now seen corresponding path program 1 times [2022-02-10 23:22:25,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:25,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318700244] [2022-02-10 23:22:25,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:25,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:25,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:22:25,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:22:25,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318700244] [2022-02-10 23:22:25,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318700244] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:22:25,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926430135] [2022-02-10 23:22:25,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:25,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:22:25,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:22:25,294 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) [2022-02-10 23:22:25,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 23:22:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:25,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-10 23:22:25,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:22:25,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:22:25,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:22:25,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926430135] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:22:25,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 23:22:25,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-10 23:22:25,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254612243] [2022-02-10 23:22:25,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:22:25,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:22:25,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:22:25,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:22:25,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:22:25,433 INFO L87 Difference]: Start difference. First operand 17849 states and 71769 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-02-10 23:22:25,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:22:25,630 INFO L93 Difference]: Finished difference Result 15260 states and 60019 transitions. [2022-02-10 23:22:25,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:22:25,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) Word has length 40 [2022-02-10 23:22:25,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:22:25,690 INFO L225 Difference]: With dead ends: 15260 [2022-02-10 23:22:25,690 INFO L226 Difference]: Without dead ends: 15260 [2022-02-10 23:22:25,690 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:22:25,690 INFO L934 BasicCegarLoop]: 103 mSDtfsCounter, 37 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:22:25,691 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 172 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:22:25,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15260 states. [2022-02-10 23:22:26,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15260 to 15023. [2022-02-10 23:22:26,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15023 states, 15015 states have (on average 3.956909756909757) internal successors, (59413), 15022 states have internal predecessors, (59413), 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) [2022-02-10 23:22:26,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15023 states to 15023 states and 59413 transitions. [2022-02-10 23:22:26,132 INFO L78 Accepts]: Start accepts. Automaton has 15023 states and 59413 transitions. Word has length 40 [2022-02-10 23:22:26,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:22:26,133 INFO L470 AbstractCegarLoop]: Abstraction has 15023 states and 59413 transitions. [2022-02-10 23:22:26,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-02-10 23:22:26,133 INFO L276 IsEmpty]: Start isEmpty. Operand 15023 states and 59413 transitions. [2022-02-10 23:22:26,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-10 23:22:26,138 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:26,138 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:26,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 23:22:26,338 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,SelfDestructingSolverStorable9 [2022-02-10 23:22:26,339 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:26,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:26,339 INFO L85 PathProgramCache]: Analyzing trace with hash -2000580369, now seen corresponding path program 1 times [2022-02-10 23:22:26,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:26,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918846654] [2022-02-10 23:22:26,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:26,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:26,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 23:22:26,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:22:26,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918846654] [2022-02-10 23:22:26,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918846654] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:22:26,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:22:26,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:22:26,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587953940] [2022-02-10 23:22:26,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:22:26,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:22:26,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:22:26,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:22:26,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:22:26,373 INFO L87 Difference]: Start difference. First operand 15023 states and 59413 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-02-10 23:22:26,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:22:26,523 INFO L93 Difference]: Finished difference Result 26273 states and 96519 transitions. [2022-02-10 23:22:26,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:22:26,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) Word has length 51 [2022-02-10 23:22:26,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:22:26,615 INFO L225 Difference]: With dead ends: 26273 [2022-02-10 23:22:26,616 INFO L226 Difference]: Without dead ends: 26273 [2022-02-10 23:22:26,616 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:22:26,616 INFO L934 BasicCegarLoop]: 87 mSDtfsCounter, 51 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:22:26,616 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 140 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:22:26,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26273 states. [2022-02-10 23:22:27,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26273 to 20159. [2022-02-10 23:22:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20159 states, 20151 states have (on average 3.733859361818272) internal successors, (75241), 20158 states have internal predecessors, (75241), 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) [2022-02-10 23:22:27,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20159 states to 20159 states and 75241 transitions. [2022-02-10 23:22:27,365 INFO L78 Accepts]: Start accepts. Automaton has 20159 states and 75241 transitions. Word has length 51 [2022-02-10 23:22:27,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:22:27,365 INFO L470 AbstractCegarLoop]: Abstraction has 20159 states and 75241 transitions. [2022-02-10 23:22:27,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-02-10 23:22:27,365 INFO L276 IsEmpty]: Start isEmpty. Operand 20159 states and 75241 transitions. [2022-02-10 23:22:27,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-10 23:22:27,368 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:27,368 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:27,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-10 23:22:27,369 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:27,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:27,369 INFO L85 PathProgramCache]: Analyzing trace with hash -963480933, now seen corresponding path program 1 times [2022-02-10 23:22:27,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:27,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821985967] [2022-02-10 23:22:27,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:27,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:27,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:22:27,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:22:27,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821985967] [2022-02-10 23:22:27,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821985967] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:22:27,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057544492] [2022-02-10 23:22:27,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:27,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:22:27,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:22:27,411 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) [2022-02-10 23:22:27,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 23:22:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:27,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 23:22:27,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:22:27,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:22:27,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:22:27,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:22:27,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057544492] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:22:27,676 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:22:27,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 23:22:27,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136464040] [2022-02-10 23:22:27,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:22:27,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 23:22:27,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:22:27,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 23:22:27,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 23:22:27,677 INFO L87 Difference]: Start difference. First operand 20159 states and 75241 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 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) [2022-02-10 23:22:27,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:22:27,834 INFO L93 Difference]: Finished difference Result 19955 states and 74505 transitions. [2022-02-10 23:22:27,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 23:22:27,834 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 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) Word has length 54 [2022-02-10 23:22:27,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:22:28,034 INFO L225 Difference]: With dead ends: 19955 [2022-02-10 23:22:28,034 INFO L226 Difference]: Without dead ends: 19955 [2022-02-10 23:22:28,034 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 23:22:28,034 INFO L934 BasicCegarLoop]: 92 mSDtfsCounter, 202 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:22:28,035 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 456 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:22:28,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19955 states. [2022-02-10 23:22:28,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19955 to 19955. [2022-02-10 23:22:28,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19955 states, 19947 states have (on average 3.7351481425778315) internal successors, (74505), 19954 states have internal predecessors, (74505), 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) [2022-02-10 23:22:28,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19955 states to 19955 states and 74505 transitions. [2022-02-10 23:22:28,533 INFO L78 Accepts]: Start accepts. Automaton has 19955 states and 74505 transitions. Word has length 54 [2022-02-10 23:22:28,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:22:28,533 INFO L470 AbstractCegarLoop]: Abstraction has 19955 states and 74505 transitions. [2022-02-10 23:22:28,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 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) [2022-02-10 23:22:28,533 INFO L276 IsEmpty]: Start isEmpty. Operand 19955 states and 74505 transitions. [2022-02-10 23:22:28,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-10 23:22:28,548 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:28,548 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:28,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 23:22:28,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:22:28,763 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:28,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:28,764 INFO L85 PathProgramCache]: Analyzing trace with hash 629871864, now seen corresponding path program 1 times [2022-02-10 23:22:28,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:28,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106467138] [2022-02-10 23:22:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:28,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:22:28,779 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:22:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:22:28,789 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:22:28,790 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:22:28,790 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 23:22:28,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 23:22:28,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-10 23:22:28,790 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-02-10 23:22:28,790 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 23:22:28,790 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-02-10 23:22:28,795 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,795 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,795 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,795 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,795 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,795 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,795 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,795 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,795 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,796 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,797 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,798 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,799 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,800 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,801 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,801 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,801 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,801 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,801 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,801 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,801 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,801 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,801 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,801 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,801 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,801 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,802 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,802 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,802 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,802 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,802 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:22:28,803 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-10 23:22:28,804 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:22:28,804 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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 [2022-02-10 23:22:28,804 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:22:28,805 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 105 transitions, 254 flow [2022-02-10 23:22:35,420 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 251519 states, 251486 states have (on average 5.152648656386439) internal successors, (1295819), 251518 states have internal predecessors, (1295819), 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) [2022-02-10 23:22:35,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 251519 states, 251486 states have (on average 5.152648656386439) internal successors, (1295819), 251518 states have internal predecessors, (1295819), 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) [2022-02-10 23:22:35,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:22:35,842 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:35,842 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:35,842 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:35,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:35,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1881699498, now seen corresponding path program 1 times [2022-02-10 23:22:35,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:35,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479318464] [2022-02-10 23:22:35,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:35,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:22:35,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:22:35,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479318464] [2022-02-10 23:22:35,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479318464] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:22:35,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:22:35,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:22:35,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317062859] [2022-02-10 23:22:35,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:22:35,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:22:35,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:22:35,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:22:35,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:22:36,268 INFO L87 Difference]: Start difference. First operand has 251519 states, 251486 states have (on average 5.152648656386439) internal successors, (1295819), 251518 states have internal predecessors, (1295819), 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) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-02-10 23:22:40,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:22:40,272 INFO L93 Difference]: Finished difference Result 241520 states and 1218440 transitions. [2022-02-10 23:22:40,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:22:40,272 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) Word has length 30 [2022-02-10 23:22:40,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:22:42,026 INFO L225 Difference]: With dead ends: 241520 [2022-02-10 23:22:42,026 INFO L226 Difference]: Without dead ends: 171525 [2022-02-10 23:22:42,026 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:22:42,027 INFO L934 BasicCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:22:42,027 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:22:42,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171525 states. [2022-02-10 23:22:48,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171525 to 171525. [2022-02-10 23:22:48,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171525 states, 171508 states have (on average 5.063583039858199) internal successors, (868445), 171524 states have internal predecessors, (868445), 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) [2022-02-10 23:22:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171525 states to 171525 states and 868445 transitions. [2022-02-10 23:22:50,459 INFO L78 Accepts]: Start accepts. Automaton has 171525 states and 868445 transitions. Word has length 30 [2022-02-10 23:22:50,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:22:50,460 INFO L470 AbstractCegarLoop]: Abstraction has 171525 states and 868445 transitions. [2022-02-10 23:22:50,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-02-10 23:22:50,460 INFO L276 IsEmpty]: Start isEmpty. Operand 171525 states and 868445 transitions. [2022-02-10 23:22:50,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:22:50,460 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:22:50,460 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:22:50,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-10 23:22:50,460 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:22:50,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:22:50,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1853040556, now seen corresponding path program 1 times [2022-02-10 23:22:50,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:22:50,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013363285] [2022-02-10 23:22:50,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:22:50,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:22:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:22:50,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:22:50,499 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:22:50,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013363285] [2022-02-10 23:22:50,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013363285] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:22:50,499 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:22:50,499 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:22:50,499 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210799571] [2022-02-10 23:22:50,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:22:50,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:22:50,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:22:50,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:22:50,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:22:50,500 INFO L87 Difference]: Start difference. First operand 171525 states and 868445 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-02-10 23:22:53,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:22:53,021 INFO L93 Difference]: Finished difference Result 171524 states and 868443 transitions. [2022-02-10 23:22:53,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:22:53,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) Word has length 30 [2022-02-10 23:22:53,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:22:55,294 INFO L225 Difference]: With dead ends: 171524 [2022-02-10 23:22:55,295 INFO L226 Difference]: Without dead ends: 171524 [2022-02-10 23:22:55,295 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:22:55,308 INFO L934 BasicCegarLoop]: 83 mSDtfsCounter, 18 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:22:55,308 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 162 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:22:56,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171524 states. [2022-02-10 23:23:03,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171524 to 171524. [2022-02-10 23:23:03,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171524 states, 171507 states have (on average 5.0636009025870665) internal successors, (868443), 171523 states have internal predecessors, (868443), 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) [2022-02-10 23:23:05,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171524 states to 171524 states and 868443 transitions. [2022-02-10 23:23:05,214 INFO L78 Accepts]: Start accepts. Automaton has 171524 states and 868443 transitions. Word has length 30 [2022-02-10 23:23:05,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:23:05,215 INFO L470 AbstractCegarLoop]: Abstraction has 171524 states and 868443 transitions. [2022-02-10 23:23:05,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-02-10 23:23:05,215 INFO L276 IsEmpty]: Start isEmpty. Operand 171524 states and 868443 transitions. [2022-02-10 23:23:05,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-02-10 23:23:05,215 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:05,215 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:23:05,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-10 23:23:05,216 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:05,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:05,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1055374114, now seen corresponding path program 1 times [2022-02-10 23:23:05,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:05,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064295724] [2022-02-10 23:23:05,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:05,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:05,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:23:05,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:23:05,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064295724] [2022-02-10 23:23:05,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064295724] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:23:05,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062628113] [2022-02-10 23:23:05,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:05,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:23:05,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:23:05,254 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) [2022-02-10 23:23:05,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 23:23:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:05,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-10 23:23:05,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:23:05,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:23:05,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:23:05,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062628113] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:23:05,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 23:23:05,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-10 23:23:05,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089788433] [2022-02-10 23:23:05,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:23:05,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:23:05,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:23:05,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:23:05,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:23:05,359 INFO L87 Difference]: Start difference. First operand 171524 states and 868443 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-02-10 23:23:07,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:23:07,642 INFO L93 Difference]: Finished difference Result 148523 states and 737785 transitions. [2022-02-10 23:23:07,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:23:07,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) Word has length 40 [2022-02-10 23:23:07,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:23:09,572 INFO L225 Difference]: With dead ends: 148523 [2022-02-10 23:23:09,572 INFO L226 Difference]: Without dead ends: 148523 [2022-02-10 23:23:09,572 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:23:09,574 INFO L934 BasicCegarLoop]: 123 mSDtfsCounter, 48 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:23:09,575 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 202 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:23:09,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148523 states. [2022-02-10 23:23:15,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148523 to 146099. [2022-02-10 23:23:15,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146099 states, 146083 states have (on average 4.99030003491166) internal successors, (728998), 146098 states have internal predecessors, (728998), 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) [2022-02-10 23:23:16,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146099 states to 146099 states and 728998 transitions. [2022-02-10 23:23:16,770 INFO L78 Accepts]: Start accepts. Automaton has 146099 states and 728998 transitions. Word has length 40 [2022-02-10 23:23:16,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:23:16,770 INFO L470 AbstractCegarLoop]: Abstraction has 146099 states and 728998 transitions. [2022-02-10 23:23:16,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-02-10 23:23:16,770 INFO L276 IsEmpty]: Start isEmpty. Operand 146099 states and 728998 transitions. [2022-02-10 23:23:16,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-10 23:23:16,772 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:16,772 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:23:16,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 23:23:16,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-10 23:23:16,980 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:16,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:16,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1946298533, now seen corresponding path program 1 times [2022-02-10 23:23:16,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:16,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832412104] [2022-02-10 23:23:16,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:16,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:17,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:23:17,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:23:17,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832412104] [2022-02-10 23:23:17,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832412104] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:23:17,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:23:17,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:23:17,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551521593] [2022-02-10 23:23:17,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:23:17,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:23:17,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:23:17,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:23:17,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:23:17,016 INFO L87 Difference]: Start difference. First operand 146099 states and 728998 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-02-10 23:23:20,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:23:20,888 INFO L93 Difference]: Finished difference Result 269633 states and 1262365 transitions. [2022-02-10 23:23:20,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:23:20,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) Word has length 51 [2022-02-10 23:23:20,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:23:24,474 INFO L225 Difference]: With dead ends: 269633 [2022-02-10 23:23:24,475 INFO L226 Difference]: Without dead ends: 269633 [2022-02-10 23:23:24,475 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:23:24,476 INFO L934 BasicCegarLoop]: 88 mSDtfsCounter, 67 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:23:24,476 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 148 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:23:25,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269633 states. [2022-02-10 23:23:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269633 to 218185. [2022-02-10 23:23:34,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218185 states, 218169 states have (on average 4.739898885726203) internal successors, (1034099), 218184 states have internal predecessors, (1034099), 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) [2022-02-10 23:23:36,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218185 states to 218185 states and 1034099 transitions. [2022-02-10 23:23:36,420 INFO L78 Accepts]: Start accepts. Automaton has 218185 states and 1034099 transitions. Word has length 51 [2022-02-10 23:23:36,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:23:36,421 INFO L470 AbstractCegarLoop]: Abstraction has 218185 states and 1034099 transitions. [2022-02-10 23:23:36,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-02-10 23:23:36,422 INFO L276 IsEmpty]: Start isEmpty. Operand 218185 states and 1034099 transitions. [2022-02-10 23:23:36,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-10 23:23:36,441 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:36,441 INFO L515 BasicCegarLoop]: 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] [2022-02-10 23:23:36,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-10 23:23:36,441 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:36,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:36,442 INFO L85 PathProgramCache]: Analyzing trace with hash -519877040, now seen corresponding path program 1 times [2022-02-10 23:23:36,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:36,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400319736] [2022-02-10 23:23:36,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:36,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:36,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:23:36,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:23:36,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400319736] [2022-02-10 23:23:36,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400319736] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:23:36,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997610973] [2022-02-10 23:23:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:36,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:23:36,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:23:36,527 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) [2022-02-10 23:23:36,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 23:23:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:36,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 23:23:36,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:23:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:23:36,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:23:36,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:23:36,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997610973] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:23:36,797 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:23:36,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 23:23:36,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045674506] [2022-02-10 23:23:36,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:23:36,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 23:23:36,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:23:36,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 23:23:36,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 23:23:36,799 INFO L87 Difference]: Start difference. First operand 218185 states and 1034099 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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) [2022-02-10 23:23:40,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:23:40,595 INFO L93 Difference]: Finished difference Result 217981 states and 1033363 transitions. [2022-02-10 23:23:40,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 23:23:40,596 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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) Word has length 54 [2022-02-10 23:23:40,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:23:43,570 INFO L225 Difference]: With dead ends: 217981 [2022-02-10 23:23:43,570 INFO L226 Difference]: Without dead ends: 217981 [2022-02-10 23:23:43,570 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 23:23:43,571 INFO L934 BasicCegarLoop]: 102 mSDtfsCounter, 204 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:23:43,571 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 526 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:23:44,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217981 states.