/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-25.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 23:23:51,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 23:23:51,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 23:23:51,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-10 23:23:51,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 23:23:51,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 23:23:51,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 23:23:51,929 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 23:23:51,942 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 23:23:51,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 23:23:51,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 23:23:51,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 23:23:51,943 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 23:23:51,943 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 23:23:51,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 23:23:51,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 23:23:51,944 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 23:23:51,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 23:23:51,944 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 23:23:51,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 23:23:51,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 23:23:51,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 23:23:51,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 23:23:51,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 23:23:51,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 23:23:51,945 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 23:23:51,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 23:23:51,946 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 23:23:51,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 23:23:51,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 23:23:51,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 23:23:51,946 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 23:23:51,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 23:23:51,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:23:51,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 23:23:51,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 23:23:51,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 23:23:51,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 23:23:51,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 23:23:51,948 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 23:23:51,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 23:23:51,948 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 23:23:52,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 23:23:52,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 23:23:52,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 23:23:52,152 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 23:23:52,154 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 23:23:52,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/airline-25.i [2022-02-10 23:23:52,202 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/201f49868/6efb33c39392422c87d4968148f359a1/FLAG290401831 [2022-02-10 23:23:52,578 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 23:23:52,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/airline-25.i [2022-02-10 23:23:52,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/201f49868/6efb33c39392422c87d4968148f359a1/FLAG290401831 [2022-02-10 23:23:52,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/201f49868/6efb33c39392422c87d4968148f359a1 [2022-02-10 23:23:52,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 23:23:52,962 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 23:23:52,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 23:23:52,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 23:23:52,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 23:23:52,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:23:52" (1/1) ... [2022-02-10 23:23:52,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d51dae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:52, skipping insertion in model container [2022-02-10 23:23:52,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:23:52" (1/1) ... [2022-02-10 23:23:52,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 23:23:53,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 23:23:53,257 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-25.i[32101,32114] [2022-02-10 23:23:53,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:23:53,264 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 23:23:53,287 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-25.i[32101,32114] [2022-02-10 23:23:53,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:23:53,307 INFO L208 MainTranslator]: Completed translation [2022-02-10 23:23:53,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:53 WrapperNode [2022-02-10 23:23:53,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 23:23:53,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 23:23:53,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 23:23:53,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 23:23:53,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:53" (1/1) ... [2022-02-10 23:23:53,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:53" (1/1) ... [2022-02-10 23:23:53,336 INFO L137 Inliner]: procedures = 162, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2022-02-10 23:23:53,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 23:23:53,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 23:23:53,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 23:23:53,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 23:23:53,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:53" (1/1) ... [2022-02-10 23:23:53,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:53" (1/1) ... [2022-02-10 23:23:53,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:53" (1/1) ... [2022-02-10 23:23:53,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:53" (1/1) ... [2022-02-10 23:23:53,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:53" (1/1) ... [2022-02-10 23:23:53,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:53" (1/1) ... [2022-02-10 23:23:53,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:53" (1/1) ... [2022-02-10 23:23:53,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 23:23:53,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 23:23:53,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 23:23:53,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 23:23:53,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:53" (1/1) ... [2022-02-10 23:23:53,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:23:53,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:23:53,389 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 23:23:53,407 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 23:23:53,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 23:23:53,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 23:23:53,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 23:23:53,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 23:23:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 23:23:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2022-02-10 23:23:53,412 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2022-02-10 23:23:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 23:23:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 23:23:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 23:23:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 23:23:53,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 23:23:53,413 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 23:23:53,549 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 23:23:53,550 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 23:23:53,674 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 23:23:53,678 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 23:23:53,678 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-10 23:23:53,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:23:53 BoogieIcfgContainer [2022-02-10 23:23:53,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 23:23:53,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 23:23:53,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 23:23:53,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 23:23:53,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 11:23:52" (1/3) ... [2022-02-10 23:23:53,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4486f7b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:23:53, skipping insertion in model container [2022-02-10 23:23:53,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:23:53" (2/3) ... [2022-02-10 23:23:53,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4486f7b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:23:53, skipping insertion in model container [2022-02-10 23:23:53,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:23:53" (3/3) ... [2022-02-10 23:23:53,689 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-25.i [2022-02-10 23:23:53,693 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 23:23:53,693 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 23:23:53,693 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 23:23:53,693 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 23:23:53,731 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,731 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,731 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,731 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,732 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,732 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,732 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,733 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,733 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,733 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,733 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,733 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,734 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,734 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,734 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,735 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,735 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,735 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,736 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,736 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,739 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,739 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,739 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,739 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,740 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:53,745 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 23:23:53,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:23:53,792 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 23:23:53,793 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:23:53,807 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 69 transitions, 146 flow [2022-02-10 23:23:53,839 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 23:23:53,842 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 23:23:53,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:23:53,847 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:53,848 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 23:23:53,848 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:53,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:53,852 INFO L85 PathProgramCache]: Analyzing trace with hash 439318582, now seen corresponding path program 1 times [2022-02-10 23:23:53,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:53,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691972985] [2022-02-10 23:23:53,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:53,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:54,013 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 23:23:54,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:23:54,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691972985] [2022-02-10 23:23:54,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691972985] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:23:54,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:23:54,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:23:54,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844517479] [2022-02-10 23:23:54,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:23:54,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:23:54,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:23:54,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:23:54,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:23:54,044 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 23:23:54,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:23:54,081 INFO L93 Difference]: Finished difference Result 275 states and 527 transitions. [2022-02-10 23:23:54,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:23:54,082 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 23:23:54,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:23:54,093 INFO L225 Difference]: With dead ends: 275 [2022-02-10 23:23:54,093 INFO L226 Difference]: Without dead ends: 210 [2022-02-10 23:23:54,095 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 23:23:54,097 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 23:23:54,098 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 23:23:54,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-10 23:23:54,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-02-10 23:23:54,139 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 23:23:54,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 392 transitions. [2022-02-10 23:23:54,141 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 392 transitions. Word has length 30 [2022-02-10 23:23:54,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:23:54,142 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 392 transitions. [2022-02-10 23:23:54,142 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 23:23:54,142 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 392 transitions. [2022-02-10 23:23:54,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:23:54,143 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:54,143 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 23:23:54,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 23:23:54,144 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:54,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:54,144 INFO L85 PathProgramCache]: Analyzing trace with hash 467977524, now seen corresponding path program 1 times [2022-02-10 23:23:54,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:54,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655471632] [2022-02-10 23:23:54,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:54,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:54,215 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 23:23:54,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:23:54,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655471632] [2022-02-10 23:23:54,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655471632] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:23:54,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:23:54,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:23:54,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372572084] [2022-02-10 23:23:54,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:23:54,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:23:54,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:23:54,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:23:54,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:23:54,218 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 23:23:54,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:23:54,244 INFO L93 Difference]: Finished difference Result 209 states and 390 transitions. [2022-02-10 23:23:54,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:23:54,244 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 23:23:54,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:23:54,245 INFO L225 Difference]: With dead ends: 209 [2022-02-10 23:23:54,245 INFO L226 Difference]: Without dead ends: 209 [2022-02-10 23:23:54,246 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 23:23:54,246 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 23:23:54,247 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 23:23:54,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-02-10 23:23:54,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2022-02-10 23:23:54,256 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 23:23:54,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 390 transitions. [2022-02-10 23:23:54,257 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 390 transitions. Word has length 30 [2022-02-10 23:23:54,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:23:54,257 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 390 transitions. [2022-02-10 23:23:54,257 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 23:23:54,257 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 390 transitions. [2022-02-10 23:23:54,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-10 23:23:54,258 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:54,258 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 23:23:54,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 23:23:54,259 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:54,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:54,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2028145231, now seen corresponding path program 1 times [2022-02-10 23:23:54,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:54,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546570175] [2022-02-10 23:23:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:54,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:23:54,295 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:23:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:23:54,335 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:23:54,335 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:23:54,336 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 23:23:54,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 23:23:54,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 23:23:54,339 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-10 23:23:54,340 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 23:23:54,340 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-10 23:23:54,349 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,349 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,349 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,349 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,350 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,350 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,350 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,350 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,350 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,351 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,351 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,351 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,351 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,351 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,351 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,351 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,352 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,352 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,352 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,352 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,353 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,353 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,353 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,353 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,353 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,353 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,353 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,353 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,354 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,354 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,354 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,354 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,354 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,354 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,354 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,355 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,355 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,355 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,355 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,355 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,356 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,356 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,356 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,356 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,356 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,357 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,357 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,357 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,357 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,357 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:54,365 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 23:23:54,368 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:23:54,372 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 23:23:54,372 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:23:54,375 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 81 transitions, 180 flow [2022-02-10 23:23:54,438 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 23:23:54,443 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 23:23:54,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:23:54,446 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:54,446 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 23:23:54,446 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:54,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:54,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1619998698, now seen corresponding path program 1 times [2022-02-10 23:23:54,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:54,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806946087] [2022-02-10 23:23:54,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:54,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:54,499 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 23:23:54,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:23:54,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806946087] [2022-02-10 23:23:54,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806946087] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:23:54,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:23:54,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:23:54,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454762842] [2022-02-10 23:23:54,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:23:54,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:23:54,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:23:54,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:23:54,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:23:54,511 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 23:23:54,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:23:54,544 INFO L93 Difference]: Finished difference Result 2570 states and 7650 transitions. [2022-02-10 23:23:54,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:23:54,545 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 23:23:54,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:23:54,557 INFO L225 Difference]: With dead ends: 2570 [2022-02-10 23:23:54,557 INFO L226 Difference]: Without dead ends: 1875 [2022-02-10 23:23:54,557 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 23:23:54,558 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 23:23:54,559 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 23:23:54,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2022-02-10 23:23:54,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1875. [2022-02-10 23:23:54,607 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 23:23:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 5555 transitions. [2022-02-10 23:23:54,613 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 5555 transitions. Word has length 30 [2022-02-10 23:23:54,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:23:54,613 INFO L470 AbstractCegarLoop]: Abstraction has 1875 states and 5555 transitions. [2022-02-10 23:23:54,613 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 23:23:54,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 5555 transitions. [2022-02-10 23:23:54,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:23:54,616 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:54,616 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 23:23:54,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 23:23:54,616 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:54,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:54,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1591339756, now seen corresponding path program 1 times [2022-02-10 23:23:54,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:54,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497954234] [2022-02-10 23:23:54,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:54,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:54,652 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 23:23:54,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:23:54,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497954234] [2022-02-10 23:23:54,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497954234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:23:54,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:23:54,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:23:54,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322527984] [2022-02-10 23:23:54,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:23:54,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:23:54,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:23:54,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:23:54,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:23:54,654 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 23:23:54,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:23:54,684 INFO L93 Difference]: Finished difference Result 1874 states and 5553 transitions. [2022-02-10 23:23:54,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:23:54,684 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 23:23:54,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:23:54,693 INFO L225 Difference]: With dead ends: 1874 [2022-02-10 23:23:54,693 INFO L226 Difference]: Without dead ends: 1874 [2022-02-10 23:23:54,693 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 23:23:54,696 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 23:23:54,697 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 23:23:54,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2022-02-10 23:23:54,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1874. [2022-02-10 23:23:54,729 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 23:23:54,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 5553 transitions. [2022-02-10 23:23:54,737 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 5553 transitions. Word has length 30 [2022-02-10 23:23:54,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:23:54,737 INFO L470 AbstractCegarLoop]: Abstraction has 1874 states and 5553 transitions. [2022-02-10 23:23:54,737 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 23:23:54,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 5553 transitions. [2022-02-10 23:23:54,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-02-10 23:23:54,739 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:54,739 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 23:23:54,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 23:23:54,739 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:54,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:54,740 INFO L85 PathProgramCache]: Analyzing trace with hash -776830794, now seen corresponding path program 1 times [2022-02-10 23:23:54,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:54,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395774793] [2022-02-10 23:23:54,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:54,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:54,803 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 23:23:54,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:23:54,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395774793] [2022-02-10 23:23:54,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395774793] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:23:54,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611110243] [2022-02-10 23:23:54,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:54,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:23:54,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:23:54,808 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 23:23:54,827 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 23:23:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:54,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-10 23:23:54,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:23:54,971 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 23:23:54,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:23:54,972 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611110243] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:23:54,972 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 23:23:54,972 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-10 23:23:54,972 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142857597] [2022-02-10 23:23:54,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:23:54,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:23:54,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:23:54,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:23:54,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:23:54,973 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 23:23:55,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:23:55,001 INFO L93 Difference]: Finished difference Result 1580 states and 4561 transitions. [2022-02-10 23:23:55,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:23:55,002 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 23:23:55,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:23:55,008 INFO L225 Difference]: With dead ends: 1580 [2022-02-10 23:23:55,009 INFO L226 Difference]: Without dead ends: 1580 [2022-02-10 23:23:55,009 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 23:23:55,009 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 23:23:55,009 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 23:23:55,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-02-10 23:23:55,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1559. [2022-02-10 23:23:55,037 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 23:23:55,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 4528 transitions. [2022-02-10 23:23:55,068 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 4528 transitions. Word has length 40 [2022-02-10 23:23:55,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:23:55,068 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 4528 transitions. [2022-02-10 23:23:55,068 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 23:23:55,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 4528 transitions. [2022-02-10 23:23:55,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-10 23:23:55,070 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:55,071 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 23:23:55,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-10 23:23:55,283 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 23:23:55,284 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:55,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:55,284 INFO L85 PathProgramCache]: Analyzing trace with hash 638183219, now seen corresponding path program 1 times [2022-02-10 23:23:55,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:55,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118970526] [2022-02-10 23:23:55,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:55,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:23:55,296 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:23:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:23:55,307 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:23:55,307 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:23:55,307 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 23:23:55,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 23:23:55,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 23:23:55,308 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-10 23:23:55,308 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 23:23:55,308 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-02-10 23:23:55,317 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,318 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,318 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,318 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,318 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,318 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,318 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,318 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,318 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,318 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,318 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,318 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,319 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,319 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,319 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,319 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,319 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,319 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,319 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,319 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,322 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,322 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,322 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,322 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,322 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,323 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,323 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,323 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,323 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,323 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,323 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,323 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,327 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,327 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,327 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,327 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,328 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,328 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,328 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,328 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,328 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,328 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,328 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,328 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,328 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,328 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,328 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,329 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,329 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,329 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,329 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,329 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,329 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,329 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,329 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,329 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,329 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,329 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,330 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,330 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,330 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,330 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,330 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,330 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,330 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,331 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,331 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,331 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,331 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,331 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,331 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,331 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,331 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,331 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,331 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:23:55,333 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-10 23:23:55,334 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:23:55,334 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 23:23:55,334 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:23:55,335 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 88 places, 93 transitions, 216 flow [2022-02-10 23:23:55,975 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 23:23:56,013 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 23:23:56,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:23:56,013 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:56,013 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 23:23:56,014 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:56,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:56,014 INFO L85 PathProgramCache]: Analyzing trace with hash -962015626, now seen corresponding path program 1 times [2022-02-10 23:23:56,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:56,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071652382] [2022-02-10 23:23:56,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:56,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:56,029 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 23:23:56,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:23:56,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071652382] [2022-02-10 23:23:56,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071652382] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:23:56,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:23:56,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:23:56,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28933596] [2022-02-10 23:23:56,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:23:56,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:23:56,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:23:56,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:23:56,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:23:56,072 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 23:23:56,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:23:56,481 INFO L93 Difference]: Finished difference Result 24845 states and 99766 transitions. [2022-02-10 23:23:56,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:23:56,500 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 23:23:56,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:23:56,638 INFO L225 Difference]: With dead ends: 24845 [2022-02-10 23:23:56,639 INFO L226 Difference]: Without dead ends: 17850 [2022-02-10 23:23:56,641 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 23:23:56,642 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 23:23:56,642 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 23:23:56,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17850 states. [2022-02-10 23:23:57,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17850 to 17850. [2022-02-10 23:23:57,224 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 23:23:57,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17850 states to 17850 states and 71771 transitions. [2022-02-10 23:23:57,380 INFO L78 Accepts]: Start accepts. Automaton has 17850 states and 71771 transitions. Word has length 30 [2022-02-10 23:23:57,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:23:57,380 INFO L470 AbstractCegarLoop]: Abstraction has 17850 states and 71771 transitions. [2022-02-10 23:23:57,380 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 23:23:57,380 INFO L276 IsEmpty]: Start isEmpty. Operand 17850 states and 71771 transitions. [2022-02-10 23:23:57,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:23:57,380 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:57,380 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 23:23:57,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 23:23:57,381 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:57,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:57,381 INFO L85 PathProgramCache]: Analyzing trace with hash -933356684, now seen corresponding path program 1 times [2022-02-10 23:23:57,381 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:57,381 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707372620] [2022-02-10 23:23:57,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:57,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:57,395 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 23:23:57,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:23:57,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707372620] [2022-02-10 23:23:57,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707372620] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:23:57,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:23:57,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:23:57,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646525754] [2022-02-10 23:23:57,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:23:57,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:23:57,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:23:57,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:23:57,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:23:57,397 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 23:23:57,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:23:57,614 INFO L93 Difference]: Finished difference Result 17849 states and 71769 transitions. [2022-02-10 23:23:57,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:23:57,615 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 23:23:57,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:23:57,686 INFO L225 Difference]: With dead ends: 17849 [2022-02-10 23:23:57,686 INFO L226 Difference]: Without dead ends: 17849 [2022-02-10 23:23:57,686 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 23:23:57,687 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 23:23:57,687 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 23:23:57,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17849 states. [2022-02-10 23:23:58,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17849 to 17849. [2022-02-10 23:23:58,268 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 23:23:58,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17849 states to 17849 states and 71769 transitions. [2022-02-10 23:23:58,330 INFO L78 Accepts]: Start accepts. Automaton has 17849 states and 71769 transitions. Word has length 30 [2022-02-10 23:23:58,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:23:58,330 INFO L470 AbstractCegarLoop]: Abstraction has 17849 states and 71769 transitions. [2022-02-10 23:23:58,330 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 23:23:58,330 INFO L276 IsEmpty]: Start isEmpty. Operand 17849 states and 71769 transitions. [2022-02-10 23:23:58,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-02-10 23:23:58,331 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:58,331 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 23:23:58,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 23:23:58,331 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:58,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:58,332 INFO L85 PathProgramCache]: Analyzing trace with hash 96906988, now seen corresponding path program 1 times [2022-02-10 23:23:58,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:58,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866140954] [2022-02-10 23:23:58,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:58,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:58,357 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 23:23:58,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:23:58,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866140954] [2022-02-10 23:23:58,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866140954] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:23:58,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901141500] [2022-02-10 23:23:58,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:58,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:23:58,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:23:58,371 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 23:23:58,372 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 23:23:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:58,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-10 23:23:58,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:23:58,483 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 23:23:58,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:23:58,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901141500] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:23:58,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 23:23:58,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-10 23:23:58,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962141886] [2022-02-10 23:23:58,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:23:58,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:23:58,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:23:58,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:23:58,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:23:58,484 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 23:23:58,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:23:58,710 INFO L93 Difference]: Finished difference Result 15260 states and 60019 transitions. [2022-02-10 23:23:58,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:23:58,710 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 23:23:58,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:23:58,770 INFO L225 Difference]: With dead ends: 15260 [2022-02-10 23:23:58,770 INFO L226 Difference]: Without dead ends: 15260 [2022-02-10 23:23:58,770 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 23:23:58,771 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 23:23:58,771 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 23:23:58,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15260 states. [2022-02-10 23:23:59,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15260 to 15023. [2022-02-10 23:23:59,111 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 23:23:59,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15023 states to 15023 states and 59413 transitions. [2022-02-10 23:23:59,158 INFO L78 Accepts]: Start accepts. Automaton has 15023 states and 59413 transitions. Word has length 40 [2022-02-10 23:23:59,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:23:59,159 INFO L470 AbstractCegarLoop]: Abstraction has 15023 states and 59413 transitions. [2022-02-10 23:23:59,159 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 23:23:59,159 INFO L276 IsEmpty]: Start isEmpty. Operand 15023 states and 59413 transitions. [2022-02-10 23:23:59,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-10 23:23:59,161 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:23:59,161 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 23:23:59,178 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 23:23:59,374 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 23:23:59,374 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:23:59,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:23:59,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2000580369, now seen corresponding path program 1 times [2022-02-10 23:23:59,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:23:59,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530904983] [2022-02-10 23:23:59,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:23:59,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:23:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:23:59,402 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 23:23:59,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:23:59,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530904983] [2022-02-10 23:23:59,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530904983] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:23:59,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:23:59,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:23:59,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408812826] [2022-02-10 23:23:59,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:23:59,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:23:59,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:23:59,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:23:59,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:23:59,403 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 23:23:59,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:23:59,690 INFO L93 Difference]: Finished difference Result 26273 states and 96519 transitions. [2022-02-10 23:23:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:23:59,691 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 23:23:59,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:23:59,785 INFO L225 Difference]: With dead ends: 26273 [2022-02-10 23:23:59,785 INFO L226 Difference]: Without dead ends: 26273 [2022-02-10 23:23:59,785 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 23:23:59,787 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 23:23:59,787 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 23:23:59,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26273 states. [2022-02-10 23:24:00,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26273 to 20159. [2022-02-10 23:24:00,313 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 23:24:00,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20159 states to 20159 states and 75241 transitions. [2022-02-10 23:24:00,489 INFO L78 Accepts]: Start accepts. Automaton has 20159 states and 75241 transitions. Word has length 51 [2022-02-10 23:24:00,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:24:00,489 INFO L470 AbstractCegarLoop]: Abstraction has 20159 states and 75241 transitions. [2022-02-10 23:24:00,489 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 23:24:00,489 INFO L276 IsEmpty]: Start isEmpty. Operand 20159 states and 75241 transitions. [2022-02-10 23:24:00,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-10 23:24:00,492 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:00,492 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 23:24:00,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-10 23:24:00,493 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:24:00,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:00,494 INFO L85 PathProgramCache]: Analyzing trace with hash -963480933, now seen corresponding path program 1 times [2022-02-10 23:24:00,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:00,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076022695] [2022-02-10 23:24:00,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:00,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:00,540 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 23:24:00,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:24:00,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076022695] [2022-02-10 23:24:00,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076022695] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:24:00,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049859856] [2022-02-10 23:24:00,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:00,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:24:00,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:24:00,541 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 23:24:00,542 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 23:24:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:00,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 23:24:00,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:24:00,703 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 23:24:00,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:24:00,802 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 23:24:00,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049859856] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:24:00,803 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:24:00,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 23:24:00,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474669316] [2022-02-10 23:24:00,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:24:00,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 23:24:00,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:24:00,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 23:24:00,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 23:24:00,804 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 23:24:00,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:24:00,954 INFO L93 Difference]: Finished difference Result 19955 states and 74505 transitions. [2022-02-10 23:24:00,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 23:24:00,955 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 23:24:00,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:24:01,016 INFO L225 Difference]: With dead ends: 19955 [2022-02-10 23:24:01,017 INFO L226 Difference]: Without dead ends: 19955 [2022-02-10 23:24:01,017 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 23:24:01,017 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 23:24:01,017 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 23:24:01,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19955 states. [2022-02-10 23:24:01,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19955 to 19955. [2022-02-10 23:24:01,507 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 23:24:01,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19955 states to 19955 states and 74505 transitions. [2022-02-10 23:24:01,689 INFO L78 Accepts]: Start accepts. Automaton has 19955 states and 74505 transitions. Word has length 54 [2022-02-10 23:24:01,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:24:01,689 INFO L470 AbstractCegarLoop]: Abstraction has 19955 states and 74505 transitions. [2022-02-10 23:24:01,689 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 23:24:01,690 INFO L276 IsEmpty]: Start isEmpty. Operand 19955 states and 74505 transitions. [2022-02-10 23:24:01,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-10 23:24:01,701 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:01,701 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 23:24:01,719 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 23:24:01,915 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 23:24:01,915 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:24:01,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:01,916 INFO L85 PathProgramCache]: Analyzing trace with hash 629871864, now seen corresponding path program 1 times [2022-02-10 23:24:01,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:01,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612922789] [2022-02-10 23:24:01,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:01,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:24:01,929 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:24:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:24:01,942 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:24:01,942 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:24:01,942 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 23:24:01,942 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 23:24:01,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-10 23:24:01,943 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-02-10 23:24:01,943 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 23:24:01,943 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-02-10 23:24:01,949 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,949 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,950 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,951 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,951 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,951 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,951 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,951 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,951 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,951 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,951 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,951 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,951 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,951 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,952 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,952 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,952 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,952 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,952 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,952 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,952 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,952 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,952 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,952 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,952 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,952 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,953 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,953 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,953 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,953 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,953 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,953 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,953 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,953 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,953 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,953 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,953 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,954 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,954 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,954 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,954 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,954 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,954 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,954 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,954 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,954 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,954 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,954 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,955 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,956 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,956 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,956 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,956 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,956 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,956 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,956 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,956 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,957 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,957 WARN L322 ript$VariableManager]: TermVariable salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,957 WARN L322 ript$VariableManager]: TermVariable |salethreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,957 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,957 WARN L322 ript$VariableManager]: TermVariable |salethreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,957 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,957 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,957 WARN L322 ript$VariableManager]: TermVariable salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,958 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,958 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,958 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,958 WARN L322 ript$VariableManager]: TermVariable |salethreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,958 WARN L322 ript$VariableManager]: TermVariable salethreadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,958 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,958 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,958 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,958 WARN L322 ript$VariableManager]: TermVariable salethreadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,958 WARN L322 ript$VariableManager]: TermVariable |salethreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:01,960 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-10 23:24:01,961 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:24:01,961 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 23:24:01,961 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:24:01,962 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 105 transitions, 254 flow [2022-02-10 23:24:08,139 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 23:24:08,557 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 23:24:08,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:24:08,558 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:08,558 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 23:24:08,558 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:24:08,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:08,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1881699498, now seen corresponding path program 1 times [2022-02-10 23:24:08,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:08,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096953837] [2022-02-10 23:24:08,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:08,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:08,584 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 23:24:08,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:24:08,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096953837] [2022-02-10 23:24:08,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096953837] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:24:08,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:24:08,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:24:08,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904899851] [2022-02-10 23:24:08,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:24:08,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:24:08,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:24:08,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:24:08,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:24:08,988 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 23:24:13,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:24:13,047 INFO L93 Difference]: Finished difference Result 241520 states and 1218440 transitions. [2022-02-10 23:24:13,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:24:13,047 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 23:24:13,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:24:14,748 INFO L225 Difference]: With dead ends: 241520 [2022-02-10 23:24:14,748 INFO L226 Difference]: Without dead ends: 171525 [2022-02-10 23:24:14,749 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 23:24:14,750 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 23:24:14,750 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 23:24:15,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171525 states. [2022-02-10 23:24:21,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171525 to 171525. [2022-02-10 23:24:21,729 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 23:24:23,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171525 states to 171525 states and 868445 transitions. [2022-02-10 23:24:23,435 INFO L78 Accepts]: Start accepts. Automaton has 171525 states and 868445 transitions. Word has length 30 [2022-02-10 23:24:23,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:24:23,435 INFO L470 AbstractCegarLoop]: Abstraction has 171525 states and 868445 transitions. [2022-02-10 23:24:23,435 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 23:24:23,435 INFO L276 IsEmpty]: Start isEmpty. Operand 171525 states and 868445 transitions. [2022-02-10 23:24:23,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 23:24:23,435 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:23,435 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 23:24:23,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-10 23:24:23,435 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:24:23,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:23,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1853040556, now seen corresponding path program 1 times [2022-02-10 23:24:23,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:23,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831809195] [2022-02-10 23:24:23,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:23,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:23,461 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 23:24:23,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:24:23,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831809195] [2022-02-10 23:24:23,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831809195] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:24:23,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:24:23,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:24:23,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642502302] [2022-02-10 23:24:23,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:24:23,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:24:23,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:24:23,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:24:23,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:24:23,463 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 23:24:25,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:24:25,963 INFO L93 Difference]: Finished difference Result 171524 states and 868443 transitions. [2022-02-10 23:24:25,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:24:25,967 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 23:24:25,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:24:28,287 INFO L225 Difference]: With dead ends: 171524 [2022-02-10 23:24:28,287 INFO L226 Difference]: Without dead ends: 171524 [2022-02-10 23:24:28,287 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 23:24:28,289 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 23:24:28,289 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 23:24:29,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171524 states. [2022-02-10 23:24:36,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171524 to 171524. [2022-02-10 23:24:36,505 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 23:24:38,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171524 states to 171524 states and 868443 transitions. [2022-02-10 23:24:38,199 INFO L78 Accepts]: Start accepts. Automaton has 171524 states and 868443 transitions. Word has length 30 [2022-02-10 23:24:38,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:24:38,199 INFO L470 AbstractCegarLoop]: Abstraction has 171524 states and 868443 transitions. [2022-02-10 23:24:38,199 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 23:24:38,199 INFO L276 IsEmpty]: Start isEmpty. Operand 171524 states and 868443 transitions. [2022-02-10 23:24:38,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-02-10 23:24:38,199 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:38,200 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 23:24:38,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-10 23:24:38,200 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:24:38,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:38,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1055374114, now seen corresponding path program 1 times [2022-02-10 23:24:38,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:38,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833173616] [2022-02-10 23:24:38,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:38,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:38,234 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 23:24:38,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:24:38,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833173616] [2022-02-10 23:24:38,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833173616] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:24:38,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14846589] [2022-02-10 23:24:38,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:38,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:24:38,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:24:38,236 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 23:24:38,238 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 23:24:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:38,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-10 23:24:38,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:24:38,338 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 23:24:38,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:24:38,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14846589] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:24:38,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 23:24:38,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-10 23:24:38,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210769236] [2022-02-10 23:24:38,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:24:38,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:24:38,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:24:38,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:24:38,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:24:38,339 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 23:24:40,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:24:40,747 INFO L93 Difference]: Finished difference Result 148523 states and 737785 transitions. [2022-02-10 23:24:40,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:24:40,748 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 23:24:40,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:24:42,937 INFO L225 Difference]: With dead ends: 148523 [2022-02-10 23:24:42,937 INFO L226 Difference]: Without dead ends: 148523 [2022-02-10 23:24:42,937 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 23:24:42,938 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 23:24:42,941 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 23:24:43,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148523 states. [2022-02-10 23:24:48,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148523 to 146099. [2022-02-10 23:24:48,560 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 23:24:49,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146099 states to 146099 states and 728998 transitions. [2022-02-10 23:24:49,991 INFO L78 Accepts]: Start accepts. Automaton has 146099 states and 728998 transitions. Word has length 40 [2022-02-10 23:24:49,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:24:49,992 INFO L470 AbstractCegarLoop]: Abstraction has 146099 states and 728998 transitions. [2022-02-10 23:24:49,992 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 23:24:49,992 INFO L276 IsEmpty]: Start isEmpty. Operand 146099 states and 728998 transitions. [2022-02-10 23:24:49,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-10 23:24:49,994 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:49,994 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 23:24:50,012 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 23:24:50,207 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 23:24:50,207 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:24:50,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:50,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1946298533, now seen corresponding path program 1 times [2022-02-10 23:24:50,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:50,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263453994] [2022-02-10 23:24:50,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:50,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:50,230 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 23:24:50,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:24:50,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263453994] [2022-02-10 23:24:50,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263453994] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:24:50,230 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:24:50,230 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:24:50,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850475799] [2022-02-10 23:24:50,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:24:50,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:24:50,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:24:50,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:24:50,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:24:50,231 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 23:24:54,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:24:54,217 INFO L93 Difference]: Finished difference Result 269633 states and 1262365 transitions. [2022-02-10 23:24:54,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:24:54,217 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 23:24:54,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:24:57,780 INFO L225 Difference]: With dead ends: 269633 [2022-02-10 23:24:57,780 INFO L226 Difference]: Without dead ends: 269633 [2022-02-10 23:24:57,782 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 23:24:57,783 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 23:24:57,784 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 23:24:58,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269633 states. [2022-02-10 23:25:06,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269633 to 218185. [2022-02-10 23:25:07,380 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 23:25:09,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218185 states to 218185 states and 1034099 transitions. [2022-02-10 23:25:09,403 INFO L78 Accepts]: Start accepts. Automaton has 218185 states and 1034099 transitions. Word has length 51 [2022-02-10 23:25:09,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:09,403 INFO L470 AbstractCegarLoop]: Abstraction has 218185 states and 1034099 transitions. [2022-02-10 23:25:09,403 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 23:25:09,405 INFO L276 IsEmpty]: Start isEmpty. Operand 218185 states and 1034099 transitions. [2022-02-10 23:25:09,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-10 23:25:09,423 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:09,423 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 23:25:09,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-10 23:25:09,424 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:09,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:09,424 INFO L85 PathProgramCache]: Analyzing trace with hash -519877040, now seen corresponding path program 1 times [2022-02-10 23:25:09,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:09,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720457219] [2022-02-10 23:25:09,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:09,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:09,485 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 23:25:09,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:09,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720457219] [2022-02-10 23:25:09,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720457219] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:25:09,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469778938] [2022-02-10 23:25:09,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:09,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:09,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:09,487 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 23:25:09,509 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 23:25:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:09,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 23:25:09,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:09,681 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 23:25:09,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:25:09,770 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 23:25:09,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469778938] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:25:09,770 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:25:09,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 23:25:09,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048177478] [2022-02-10 23:25:09,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:25:09,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 23:25:09,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:09,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 23:25:09,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 23:25:09,771 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 23:25:13,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:13,693 INFO L93 Difference]: Finished difference Result 217981 states and 1033363 transitions. [2022-02-10 23:25:13,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 23:25:13,694 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 23:25:13,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:16,770 INFO L225 Difference]: With dead ends: 217981 [2022-02-10 23:25:16,770 INFO L226 Difference]: Without dead ends: 217981 [2022-02-10 23:25:16,772 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 23:25:16,775 INFO L934 BasicCegarLoop]: 102 mSDtfsCounter, 204 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 23:25:16,775 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 23:25:17,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217981 states.