/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/airline-5.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-ba0fd47f62a02cd5486659f03d300faf678a2e90-ba0fd47 [2021-11-14 05:47:24,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-14 05:47:24,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-14 05:47:24,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-14 05:47:24,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-14 05:47:24,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-14 05:47:24,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-14 05:47:24,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-14 05:47:24,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-14 05:47:24,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-14 05:47:24,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-14 05:47:24,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-14 05:47:24,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-14 05:47:24,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-14 05:47:24,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-14 05:47:24,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-14 05:47:24,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-14 05:47:24,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-14 05:47:24,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-14 05:47:24,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-14 05:47:24,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-14 05:47:24,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-14 05:47:24,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-14 05:47:24,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-14 05:47:24,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-11-14 05:47:24,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-14 05:47:24,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-14 05:47:24,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-14 05:47:24,988 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-11-14 05:47:25,002 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-14 05:47:25,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-14 05:47:25,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-14 05:47:25,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-14 05:47:25,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-14 05:47:25,003 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-14 05:47:25,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-14 05:47:25,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-14 05:47:25,004 INFO L138 SettingsManager]: * Use SBE=true [2021-11-14 05:47:25,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-14 05:47:25,004 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-14 05:47:25,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-14 05:47:25,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-14 05:47:25,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-14 05:47:25,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-14 05:47:25,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-14 05:47:25,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-14 05:47:25,005 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-14 05:47:25,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-14 05:47:25,005 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-14 05:47:25,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-14 05:47:25,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-14 05:47:25,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-14 05:47:25,006 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-14 05:47:25,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-14 05:47:25,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 05:47:25,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-14 05:47:25,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-14 05:47:25,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-14 05:47:25,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-14 05:47:25,006 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-11-14 05:47:25,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-14 05:47:25,007 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-14 05:47:25,007 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-14 05:47:25,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-14 05:47:25,007 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-14 05:47:25,007 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-14 05:47:25,007 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-11-14 05:47:25,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-14 05:47:25,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-14 05:47:25,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-14 05:47:25,196 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-14 05:47:25,197 INFO L275 PluginConnector]: CDTParser initialized [2021-11-14 05:47:25,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/airline-5.i [2021-11-14 05:47:25,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe63d704d/09d7c7d98c9e4cb6b64ad5596078824a/FLAG8f6d76af3 [2021-11-14 05:47:25,617 INFO L306 CDTParser]: Found 1 translation units. [2021-11-14 05:47:25,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/airline-5.i [2021-11-14 05:47:25,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe63d704d/09d7c7d98c9e4cb6b64ad5596078824a/FLAG8f6d76af3 [2021-11-14 05:47:25,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe63d704d/09d7c7d98c9e4cb6b64ad5596078824a [2021-11-14 05:47:25,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-14 05:47:25,636 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-14 05:47:25,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-14 05:47:25,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-14 05:47:25,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-14 05:47:25,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:47:25" (1/1) ... [2021-11-14 05:47:25,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6405cf47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25, skipping insertion in model container [2021-11-14 05:47:25,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:47:25" (1/1) ... [2021-11-14 05:47:25,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-14 05:47:25,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-14 05:47:25,899 WARN L228 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-5.i[32089,32102] [2021-11-14 05:47:25,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 05:47:25,907 INFO L203 MainTranslator]: Completed pre-run [2021-11-14 05:47:25,951 WARN L228 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-5.i[32089,32102] [2021-11-14 05:47:25,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 05:47:25,976 INFO L208 MainTranslator]: Completed translation [2021-11-14 05:47:25,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25 WrapperNode [2021-11-14 05:47:25,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-14 05:47:25,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-14 05:47:25,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-14 05:47:25,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-14 05:47:25,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25" (1/1) ... [2021-11-14 05:47:25,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25" (1/1) ... [2021-11-14 05:47:26,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-14 05:47:26,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-14 05:47:26,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-14 05:47:26,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-14 05:47:26,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25" (1/1) ... [2021-11-14 05:47:26,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25" (1/1) ... [2021-11-14 05:47:26,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25" (1/1) ... [2021-11-14 05:47:26,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25" (1/1) ... [2021-11-14 05:47:26,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25" (1/1) ... [2021-11-14 05:47:26,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25" (1/1) ... [2021-11-14 05:47:26,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25" (1/1) ... [2021-11-14 05:47:26,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-14 05:47:26,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-14 05:47:26,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-14 05:47:26,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-14 05:47:26,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25" (1/1) ... [2021-11-14 05:47:26,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 05:47:26,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:26,059 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) [2021-11-14 05:47:26,061 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 [2021-11-14 05:47:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-14 05:47:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-14 05:47:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-14 05:47:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-14 05:47:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-14 05:47:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2021-11-14 05:47:26,083 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2021-11-14 05:47:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-14 05:47:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-14 05:47:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-14 05:47:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-14 05:47:26,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-14 05:47:26,084 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-14 05:47:26,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-14 05:47:26,298 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-14 05:47:26,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:47:26 BoogieIcfgContainer [2021-11-14 05:47:26,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-14 05:47:26,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-14 05:47:26,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-14 05:47:26,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-14 05:47:26,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:47:25" (1/3) ... [2021-11-14 05:47:26,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25016da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:47:26, skipping insertion in model container [2021-11-14 05:47:26,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:25" (2/3) ... [2021-11-14 05:47:26,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25016da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:47:26, skipping insertion in model container [2021-11-14 05:47:26,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:47:26" (3/3) ... [2021-11-14 05:47:26,307 INFO L111 eAbstractionObserver]: Analyzing ICFG airline-5.i [2021-11-14 05:47:26,312 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-14 05:47:26,312 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-14 05:47:26,312 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-14 05:47:26,312 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-14 05:47:26,326 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,327 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,327 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,327 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,327 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,327 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,327 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,327 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,327 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,327 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,328 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,328 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,328 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,328 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,328 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,328 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,328 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,328 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,329 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,329 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of1ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:26,334 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-14 05:47:26,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 05:47:26,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:26,368 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 05:47:26,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-14 05:47:26,390 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 05:47:26,394 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=PARTIAL_ORDER_FA, 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 [2021-11-14 05:47:26,395 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-14 05:47:26,431 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:26,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:26,434 INFO L85 PathProgramCache]: Analyzing trace with hash 439318582, now seen corresponding path program 1 times [2021-11-14 05:47:26,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:26,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962390122] [2021-11-14 05:47:26,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:26,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:26,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:26,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962390122] [2021-11-14 05:47:26,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962390122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:26,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:26,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 05:47:26,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008149338] [2021-11-14 05:47:26,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:26,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 05:47:26,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:26,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 05:47:26,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 05:47:26,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:26,640 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:26,641 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) [2021-11-14 05:47:26,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:26,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:26,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-14 05:47:26,653 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:26,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:26,656 INFO L85 PathProgramCache]: Analyzing trace with hash 467977524, now seen corresponding path program 1 times [2021-11-14 05:47:26,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:26,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51118610] [2021-11-14 05:47:26,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:26,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:26,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:26,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:26,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51118610] [2021-11-14 05:47:26,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51118610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:26,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:26,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 05:47:26,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725883122] [2021-11-14 05:47:26,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:26,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:26,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:26,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:26,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 05:47:26,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:26,735 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:26,736 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) [2021-11-14 05:47:26,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:26,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:26,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:26,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:26,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-14 05:47:26,809 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:26,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:26,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1579374415, now seen corresponding path program 1 times [2021-11-14 05:47:26,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:26,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323566176] [2021-11-14 05:47:26,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:26,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:26,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:26,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:26,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323566176] [2021-11-14 05:47:26,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323566176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:26,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:26,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 05:47:26,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799459411] [2021-11-14 05:47:26,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:26,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 05:47:26,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:26,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 05:47:26,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 05:47:26,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:26,907 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:26,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:26,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:26,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:26,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:26,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:26,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:26,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:26,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-14 05:47:26,975 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:26,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:26,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1646805201, now seen corresponding path program 1 times [2021-11-14 05:47:26,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:26,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545691267] [2021-11-14 05:47:26,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:26,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:27,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:27,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:27,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545691267] [2021-11-14 05:47:27,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545691267] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:27,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559129271] [2021-11-14 05:47:27,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:27,063 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:27,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:27,066 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) [2021-11-14 05:47:27,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-14 05:47:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:27,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-14 05:47:27,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:27,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:27,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-14 05:47:27,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559129271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:27,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-14 05:47:27,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-14 05:47:27,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466011328] [2021-11-14 05:47:27,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:27,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:27,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:27,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:27,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-14 05:47:27,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:27,537 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:27,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:27,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:27,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:27,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:27,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:27,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:27,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:27,786 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,SelfDestructingSolverStorable3 [2021-11-14 05:47:27,787 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:27,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:27,787 INFO L85 PathProgramCache]: Analyzing trace with hash 53290395, now seen corresponding path program 1 times [2021-11-14 05:47:27,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:27,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309488754] [2021-11-14 05:47:27,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:27,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:27,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:27,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309488754] [2021-11-14 05:47:27,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309488754] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:27,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830037544] [2021-11-14 05:47:27,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:27,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:27,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:27,827 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) [2021-11-14 05:47:27,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-14 05:47:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:27,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-14 05:47:27,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:28,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:28,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:28,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830037544] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:28,130 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:28,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-14 05:47:28,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393097716] [2021-11-14 05:47:28,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:28,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-14 05:47:28,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:28,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-14 05:47:28,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-14 05:47:28,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,133 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:28,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:28,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:28,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:28,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:28,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 05:47:28,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:28,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:28,396 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:28,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:28,396 INFO L85 PathProgramCache]: Analyzing trace with hash 390671070, now seen corresponding path program 1 times [2021-11-14 05:47:28,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:28,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487802001] [2021-11-14 05:47:28,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:28,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 05:47:28,404 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 05:47:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 05:47:28,431 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 05:47:28,432 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 05:47:28,432 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-14 05:47:28,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-14 05:47:28,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-14 05:47:28,445 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-14 05:47:28,446 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 05:47:28,446 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-14 05:47:28,459 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,460 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,460 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,460 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,460 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,460 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,460 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,460 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,460 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,460 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,460 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,460 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,460 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,461 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,462 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,463 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,463 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,463 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,463 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,463 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,463 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,464 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,464 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,464 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,464 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,464 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:28,465 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-14 05:47:28,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 05:47:28,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:28,466 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 05:47:28,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2021-11-14 05:47:28,469 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 05:47:28,470 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=PARTIAL_ORDER_FA, 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 [2021-11-14 05:47:28,470 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-14 05:47:28,473 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:28,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:28,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1619998698, now seen corresponding path program 1 times [2021-11-14 05:47:28,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:28,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660656374] [2021-11-14 05:47:28,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:28,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:28,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:28,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660656374] [2021-11-14 05:47:28,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660656374] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:28,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:28,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 05:47:28,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743107117] [2021-11-14 05:47:28,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:28,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 05:47:28,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:28,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 05:47:28,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 05:47:28,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,486 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:28,486 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) [2021-11-14 05:47:28,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-14 05:47:28,488 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:28,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:28,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1591339756, now seen corresponding path program 1 times [2021-11-14 05:47:28,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:28,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701503409] [2021-11-14 05:47:28,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:28,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:28,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:28,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:28,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701503409] [2021-11-14 05:47:28,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701503409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:28,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:28,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 05:47:28,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994226952] [2021-11-14 05:47:28,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:28,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:28,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:28,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:28,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 05:47:28,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,503 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:28,503 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) [2021-11-14 05:47:28,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:28,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-14 05:47:28,550 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:28,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:28,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1613206956, now seen corresponding path program 1 times [2021-11-14 05:47:28,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:28,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58391788] [2021-11-14 05:47:28,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:28,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:28,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:28,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:28,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58391788] [2021-11-14 05:47:28,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58391788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:28,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:28,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 05:47:28,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027598737] [2021-11-14 05:47:28,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:28,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 05:47:28,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:28,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 05:47:28,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 05:47:28,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,609 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:28,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:28,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:28,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:28,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:28,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-14 05:47:28,636 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:28,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:28,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1545776170, now seen corresponding path program 1 times [2021-11-14 05:47:28,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:28,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713562993] [2021-11-14 05:47:28,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:28,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:28,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:28,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713562993] [2021-11-14 05:47:28,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713562993] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:28,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834948557] [2021-11-14 05:47:28,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:28,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:28,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:28,699 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) [2021-11-14 05:47:28,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-14 05:47:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:28,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-14 05:47:28,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:28,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-14 05:47:28,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834948557] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:28,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-14 05:47:28,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-14 05:47:28,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629881547] [2021-11-14 05:47:28,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:28,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:28,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:28,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:28,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-14 05:47:28,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,848 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:28,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:28,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:28,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:28,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:28,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:28,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:28,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:28,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-14 05:47:29,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-14 05:47:29,076 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:29,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:29,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1754971332, now seen corresponding path program 1 times [2021-11-14 05:47:29,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:29,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051040170] [2021-11-14 05:47:29,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:29,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:29,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:29,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051040170] [2021-11-14 05:47:29,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051040170] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:29,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210484568] [2021-11-14 05:47:29,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:29,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:29,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:29,116 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:29,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-14 05:47:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:29,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-14 05:47:29,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:29,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:29,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:29,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:29,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210484568] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:29,353 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:29,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-14 05:47:29,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077237345] [2021-11-14 05:47:29,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:29,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-14 05:47:29,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:29,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-14 05:47:29,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-14 05:47:29,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:29,354 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:29,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:29,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:29,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:29,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:29,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:29,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:29,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:29,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:29,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:29,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:29,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:29,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:29,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:29,628 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:29,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:29,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1190204455, now seen corresponding path program 1 times [2021-11-14 05:47:29,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:29,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52773268] [2021-11-14 05:47:29,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:29,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:29,676 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:29,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:29,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52773268] [2021-11-14 05:47:29,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52773268] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:29,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200644608] [2021-11-14 05:47:29,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:29,676 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:29,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:29,677 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:29,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-14 05:47:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:29,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-14 05:47:29,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:29,832 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:29,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:29,928 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:29,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200644608] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:29,928 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:29,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2021-11-14 05:47:29,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079856341] [2021-11-14 05:47:29,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:29,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-14 05:47:29,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:29,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-14 05:47:29,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-14 05:47:29,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:29,933 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:29,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:29,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:29,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:29,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:29,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:29,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:29,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:29,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:29,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:29,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:29,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:29,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:29,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 05:47:29,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:30,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:30,195 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:30,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:30,196 INFO L85 PathProgramCache]: Analyzing trace with hash -499642981, now seen corresponding path program 1 times [2021-11-14 05:47:30,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:30,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514497117] [2021-11-14 05:47:30,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:30,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 05:47:30,204 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 05:47:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 05:47:30,231 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 05:47:30,231 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 05:47:30,231 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-14 05:47:30,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-14 05:47:30,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-14 05:47:30,233 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-14 05:47:30,233 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 05:47:30,233 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-14 05:47:30,272 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,272 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,272 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,272 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,272 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,273 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,274 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,275 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,276 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,276 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,276 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,276 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,276 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,276 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,276 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,276 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,276 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,276 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,276 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,276 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,277 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,277 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,277 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,277 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,277 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,277 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,277 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,277 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,277 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,277 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:30,278 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-14 05:47:30,279 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 05:47:30,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:30,281 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 05:47:30,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2021-11-14 05:47:30,284 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 05:47:30,284 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=PARTIAL_ORDER_FA, 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 [2021-11-14 05:47:30,284 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-14 05:47:30,287 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:30,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:30,287 INFO L85 PathProgramCache]: Analyzing trace with hash -962015626, now seen corresponding path program 1 times [2021-11-14 05:47:30,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:30,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451926664] [2021-11-14 05:47:30,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:30,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:30,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:30,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:30,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451926664] [2021-11-14 05:47:30,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451926664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:30,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:30,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 05:47:30,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694861728] [2021-11-14 05:47:30,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:30,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 05:47:30,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:30,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 05:47:30,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 05:47:30,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,300 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:30,300 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) [2021-11-14 05:47:30,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-14 05:47:30,301 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:30,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:30,302 INFO L85 PathProgramCache]: Analyzing trace with hash -933356684, now seen corresponding path program 1 times [2021-11-14 05:47:30,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:30,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489643239] [2021-11-14 05:47:30,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:30,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:30,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:30,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489643239] [2021-11-14 05:47:30,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489643239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:30,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:30,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 05:47:30,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521560987] [2021-11-14 05:47:30,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:30,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:30,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:30,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:30,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 05:47:30,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,317 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:30,317 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) [2021-11-14 05:47:30,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:30,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-14 05:47:30,362 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:30,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:30,362 INFO L85 PathProgramCache]: Analyzing trace with hash -130514905, now seen corresponding path program 1 times [2021-11-14 05:47:30,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:30,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825420475] [2021-11-14 05:47:30,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:30,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:30,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:30,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:30,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825420475] [2021-11-14 05:47:30,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825420475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:30,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:30,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 05:47:30,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815941609] [2021-11-14 05:47:30,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:30,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 05:47:30,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:30,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 05:47:30,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 05:47:30,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,389 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:30,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:30,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:30,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:30,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-14 05:47:30,405 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:30,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:30,405 INFO L85 PathProgramCache]: Analyzing trace with hash -197945691, now seen corresponding path program 1 times [2021-11-14 05:47:30,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:30,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206141712] [2021-11-14 05:47:30,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:30,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:30,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:30,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206141712] [2021-11-14 05:47:30,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206141712] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:30,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846493558] [2021-11-14 05:47:30,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:30,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:30,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:30,448 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:30,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-14 05:47:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:30,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-14 05:47:30,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:30,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:30,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-14 05:47:30,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846493558] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:30,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-14 05:47:30,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-14 05:47:30,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438354967] [2021-11-14 05:47:30,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:30,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:30,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:30,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:30,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-14 05:47:30,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,551 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:30,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:30,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:30,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:30,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:30,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:30,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:30,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:30,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:30,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-14 05:47:30,778 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:30,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:30,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1004871959, now seen corresponding path program 1 times [2021-11-14 05:47:30,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:30,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965722213] [2021-11-14 05:47:30,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:30,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:30,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:30,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:30,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965722213] [2021-11-14 05:47:30,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965722213] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:30,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757464436] [2021-11-14 05:47:30,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:30,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:30,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:30,836 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:30,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-14 05:47:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:30,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-14 05:47:30,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:31,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:31,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:31,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757464436] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:31,139 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:31,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-14 05:47:31,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638893446] [2021-11-14 05:47:31,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:31,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-14 05:47:31,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:31,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-14 05:47:31,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-14 05:47:31,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:31,142 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:31,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:31,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:31,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:31,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:31,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:31,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:31,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:31,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:31,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-14 05:47:31,494 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:31,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:31,495 INFO L85 PathProgramCache]: Analyzing trace with hash -847066802, now seen corresponding path program 1 times [2021-11-14 05:47:31,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:31,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200486277] [2021-11-14 05:47:31,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:31,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:31,512 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-14 05:47:31,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:31,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200486277] [2021-11-14 05:47:31,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200486277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:31,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:31,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 05:47:31,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940635723] [2021-11-14 05:47:31,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:31,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:31,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:31,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:31,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 05:47:31,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:31,513 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:31,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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) [2021-11-14 05:47:31,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:31,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:31,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:31,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:31,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-14 05:47:31,527 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:31,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:31,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1187818664, now seen corresponding path program 1 times [2021-11-14 05:47:31,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:31,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102793145] [2021-11-14 05:47:31,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:31,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:31,550 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-14 05:47:31,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:31,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102793145] [2021-11-14 05:47:31,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102793145] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:31,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42132784] [2021-11-14 05:47:31,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:31,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:31,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:31,552 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:31,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-14 05:47:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:31,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-14 05:47:31,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-14 05:47:31,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:31,855 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-14 05:47:31,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42132784] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:31,856 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:31,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 13 [2021-11-14 05:47:31,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094109023] [2021-11-14 05:47:31,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:31,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-14 05:47:31,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:31,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-14 05:47:31,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-14 05:47:31,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:31,857 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:31,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:31,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:31,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:31,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:31,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:31,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:31,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:32,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:32,172 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:32,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:32,173 INFO L85 PathProgramCache]: Analyzing trace with hash 947655907, now seen corresponding path program 1 times [2021-11-14 05:47:32,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:32,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414733219] [2021-11-14 05:47:32,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:32,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:32,213 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:32,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:32,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414733219] [2021-11-14 05:47:32,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414733219] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:32,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738104136] [2021-11-14 05:47:32,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:32,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:32,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:32,215 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:32,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-14 05:47:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:32,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-14 05:47:32,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:32,389 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:32,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:32,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738104136] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:32,529 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:32,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2021-11-14 05:47:32,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318668540] [2021-11-14 05:47:32,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:32,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-14 05:47:32,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:32,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-14 05:47:32,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-11-14 05:47:32,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:32,530 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:32,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:32,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:32,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:32,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:32,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:32,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:32,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:32,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:32,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:32,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:32,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-14 05:47:32,867 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:32,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:32,868 INFO L85 PathProgramCache]: Analyzing trace with hash 911668961, now seen corresponding path program 1 times [2021-11-14 05:47:32,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:32,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525393323] [2021-11-14 05:47:32,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:32,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:32,919 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:32,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:32,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525393323] [2021-11-14 05:47:32,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525393323] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:32,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108694581] [2021-11-14 05:47:32,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:32,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:32,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:32,921 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:32,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-14 05:47:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:32,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-14 05:47:32,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:33,102 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:33,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:33,266 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:33,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108694581] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:33,266 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:33,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2021-11-14 05:47:33,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964028555] [2021-11-14 05:47:33,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:33,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-14 05:47:33,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:33,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-14 05:47:33,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-14 05:47:33,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,270 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:33,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.538461538461538) internal successors, (137), 13 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:33,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:33,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:33,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:33,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:33,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:33,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:33,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:33,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:33,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:33,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:33,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:33,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:33,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:33,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:33,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-14 05:47:33,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:33,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-14 05:47:33,538 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:33,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:33,539 INFO L85 PathProgramCache]: Analyzing trace with hash -503449905, now seen corresponding path program 1 times [2021-11-14 05:47:33,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:33,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261381395] [2021-11-14 05:47:33,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:33,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 05:47:33,546 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 05:47:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 05:47:33,563 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 05:47:33,564 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 05:47:33,564 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-14 05:47:33,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-14 05:47:33,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-14 05:47:33,565 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-14 05:47:33,565 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 05:47:33,565 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,573 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,574 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,575 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,576 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,576 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,576 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,576 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,576 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,576 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,577 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,578 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,578 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,578 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,578 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,578 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,578 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,578 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,578 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,578 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,578 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,579 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,579 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,579 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,579 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,579 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,579 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,579 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,579 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,579 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,579 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,579 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,579 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:33,581 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-14 05:47:33,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 05:47:33,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:33,583 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 05:47:33,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Waiting until timeout for monitored process [2021-11-14 05:47:33,586 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 05:47:33,586 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=PARTIAL_ORDER_FA, 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 [2021-11-14 05:47:33,586 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-14 05:47:33,588 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:33,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:33,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1881699498, now seen corresponding path program 1 times [2021-11-14 05:47:33,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:33,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166600274] [2021-11-14 05:47:33,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:33,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:33,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:33,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166600274] [2021-11-14 05:47:33,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166600274] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:33,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:33,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 05:47:33,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488044868] [2021-11-14 05:47:33,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:33,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 05:47:33,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:33,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 05:47:33,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 05:47:33,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,598 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:33,598 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) [2021-11-14 05:47:33,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-14 05:47:33,599 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:33,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:33,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1853040556, now seen corresponding path program 1 times [2021-11-14 05:47:33,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:33,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430252212] [2021-11-14 05:47:33,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:33,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:33,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:33,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:33,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430252212] [2021-11-14 05:47:33,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430252212] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:33,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:33,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 05:47:33,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010687739] [2021-11-14 05:47:33,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:33,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:33,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:33,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:33,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 05:47:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,614 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:33,614 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) [2021-11-14 05:47:33,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:33,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-14 05:47:33,663 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:33,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:33,663 INFO L85 PathProgramCache]: Analyzing trace with hash 57348160, now seen corresponding path program 1 times [2021-11-14 05:47:33,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:33,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805118364] [2021-11-14 05:47:33,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:33,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:33,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:33,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:33,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805118364] [2021-11-14 05:47:33,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805118364] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:33,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:33,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 05:47:33,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643961494] [2021-11-14 05:47:33,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:33,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 05:47:33,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:33,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 05:47:33,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 05:47:33,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,680 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:33,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:33,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:33,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:33,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-14 05:47:33,692 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:33,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:33,693 INFO L85 PathProgramCache]: Analyzing trace with hash -10082626, now seen corresponding path program 1 times [2021-11-14 05:47:33,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:33,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169564141] [2021-11-14 05:47:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:33,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:33,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:33,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:33,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169564141] [2021-11-14 05:47:33,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169564141] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:33,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033391509] [2021-11-14 05:47:33,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:33,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:33,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:33,712 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:33,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-14 05:47:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:33,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-14 05:47:33,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:33,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:33,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-14 05:47:33,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033391509] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:33,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-14 05:47:33,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-14 05:47:33,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721301506] [2021-11-14 05:47:33,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:33,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:33,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:33,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:33,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-14 05:47:33,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,806 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:33,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:33,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:33,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:33,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:33,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:33,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:33,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:33,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:34,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-14 05:47:34,034 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:34,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:34,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1251437884, now seen corresponding path program 1 times [2021-11-14 05:47:34,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:34,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889203584] [2021-11-14 05:47:34,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:34,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:34,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:34,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:34,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889203584] [2021-11-14 05:47:34,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889203584] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:34,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965174679] [2021-11-14 05:47:34,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:34,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:34,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:34,054 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:34,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-14 05:47:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:34,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-14 05:47:34,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:34,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:34,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:34,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:34,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965174679] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:34,245 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:34,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-14 05:47:34,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216550430] [2021-11-14 05:47:34,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:34,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-14 05:47:34,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:34,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-14 05:47:34,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-14 05:47:34,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:34,245 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:34,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:34,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:34,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:34,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:34,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:34,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:34,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:34,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:34,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-14 05:47:34,544 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:34,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:34,544 INFO L85 PathProgramCache]: Analyzing trace with hash 567071799, now seen corresponding path program 1 times [2021-11-14 05:47:34,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:34,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114831594] [2021-11-14 05:47:34,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:34,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:34,564 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-14 05:47:34,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:34,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114831594] [2021-11-14 05:47:34,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114831594] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:34,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:34,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 05:47:34,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366782023] [2021-11-14 05:47:34,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:34,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:34,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:34,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:34,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 05:47:34,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:34,565 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:34,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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) [2021-11-14 05:47:34,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:34,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:34,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:34,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:34,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:34,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:34,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:34,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-14 05:47:34,580 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:34,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:34,580 INFO L85 PathProgramCache]: Analyzing trace with hash 225229584, now seen corresponding path program 1 times [2021-11-14 05:47:34,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:34,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451525719] [2021-11-14 05:47:34,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:34,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:34,602 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-14 05:47:34,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:34,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451525719] [2021-11-14 05:47:34,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451525719] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:34,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826193994] [2021-11-14 05:47:34,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:34,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:34,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:34,604 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:34,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-14 05:47:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:34,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-14 05:47:34,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:34,763 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-14 05:47:34,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-14 05:47:34,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826193994] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:34,873 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:34,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 13 [2021-11-14 05:47:34,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412702877] [2021-11-14 05:47:34,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:34,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-14 05:47:34,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:34,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-14 05:47:34,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-14 05:47:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:34,875 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:34,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:34,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:34,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:34,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:34,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:34,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:34,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:34,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:34,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:34,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:34,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:35,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:35,189 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:35,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:35,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2133427182, now seen corresponding path program 1 times [2021-11-14 05:47:35,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:35,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763939859] [2021-11-14 05:47:35,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:35,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:35,230 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:35,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:35,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763939859] [2021-11-14 05:47:35,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763939859] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:35,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008924087] [2021-11-14 05:47:35,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:35,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:35,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:35,231 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:35,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-14 05:47:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:35,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-14 05:47:35,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:35,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:35,543 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:35,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008924087] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:35,543 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:35,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2021-11-14 05:47:35,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532792155] [2021-11-14 05:47:35,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:35,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-14 05:47:35,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:35,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-14 05:47:35,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-11-14 05:47:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:35,544 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:35,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:35,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:35,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:35,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:35,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:35,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:35,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:35,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:35,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:35,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:35,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:35,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:35,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:35,871 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:35,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:35,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2097440236, now seen corresponding path program 1 times [2021-11-14 05:47:35,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:35,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105753941] [2021-11-14 05:47:35,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:35,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:35,918 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:35,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:35,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105753941] [2021-11-14 05:47:35,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105753941] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:35,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035227927] [2021-11-14 05:47:35,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:35,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:35,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:35,920 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:35,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-14 05:47:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:35,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-14 05:47:36,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:36,129 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:36,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:36,278 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:36,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035227927] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:36,278 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:36,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2021-11-14 05:47:36,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148000857] [2021-11-14 05:47:36,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:36,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-14 05:47:36,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:36,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-14 05:47:36,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-14 05:47:36,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:36,280 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:36,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.538461538461538) internal successors, (137), 13 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:36,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:36,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:36,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:36,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:36,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:36,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:36,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:36,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:36,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:36,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:36,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:36,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:36,603 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:36,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:36,603 INFO L85 PathProgramCache]: Analyzing trace with hash -738840476, now seen corresponding path program 1 times [2021-11-14 05:47:36,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:36,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491545005] [2021-11-14 05:47:36,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:36,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:36,660 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:36,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:36,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491545005] [2021-11-14 05:47:36,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491545005] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:36,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264223804] [2021-11-14 05:47:36,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:36,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:36,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:36,676 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:36,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-14 05:47:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:36,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-14 05:47:36,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:36,860 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:36,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:36,978 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:36,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264223804] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:36,979 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:36,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 12 [2021-11-14 05:47:36,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345268024] [2021-11-14 05:47:36,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:36,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-14 05:47:36,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:36,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-14 05:47:36,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-14 05:47:36,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:36,980 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:36,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:36,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:36,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:36,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:36,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:36,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:36,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:36,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:36,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:36,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:36,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:37,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:37,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:37,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:37,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:37,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:37,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 05:47:37,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:37,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:37,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:37,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-11-14 05:47:37,278 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:37,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:37,278 INFO L85 PathProgramCache]: Analyzing trace with hash -48279002, now seen corresponding path program 1 times [2021-11-14 05:47:37,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:37,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198217085] [2021-11-14 05:47:37,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:37,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 05:47:37,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 05:47:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 05:47:37,316 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 05:47:37,317 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 05:47:37,317 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-14 05:47:37,317 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-14 05:47:37,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-14 05:47:37,318 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-14 05:47:37,318 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 05:47:37,318 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-11-14 05:47:37,323 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,323 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,323 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,323 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,323 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,323 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,323 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,323 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,324 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,325 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,326 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,326 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,326 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,326 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,326 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,326 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,326 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,330 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,331 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe salethreadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,332 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,333 WARN L322 ript$VariableManager]: TermVariabe salethreadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,333 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,333 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,333 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,333 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,333 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,333 WARN L322 ript$VariableManager]: TermVariabe salethreadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,333 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,333 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,333 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,333 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,333 WARN L322 ript$VariableManager]: TermVariabe salethreadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,334 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,334 WARN L322 ript$VariableManager]: TermVariabe |salethreadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,334 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,334 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,334 WARN L322 ript$VariableManager]: TermVariabe salethreadThread5of5ForFork0_~_numberOfSeatsSold~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 05:47:37,334 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-11-14 05:47:37,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 05:47:37,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:37,347 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 05:47:37,349 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 05:47:37,349 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=PARTIAL_ORDER_FA, 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 [2021-11-14 05:47:37,349 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-14 05:47:37,351 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:37,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:37,351 INFO L85 PathProgramCache]: Analyzing trace with hash -84083018, now seen corresponding path program 1 times [2021-11-14 05:47:37,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:37,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543128725] [2021-11-14 05:47:37,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:37,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:37,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (22)] Waiting until timeout for monitored process [2021-11-14 05:47:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:37,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:37,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543128725] [2021-11-14 05:47:37,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543128725] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:37,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:37,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 05:47:37,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896856351] [2021-11-14 05:47:37,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:37,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 05:47:37,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:37,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 05:47:37,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 05:47:37,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,364 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:37,364 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) [2021-11-14 05:47:37,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-14 05:47:37,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:37,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:37,365 INFO L85 PathProgramCache]: Analyzing trace with hash -55424076, now seen corresponding path program 1 times [2021-11-14 05:47:37,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:37,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005106736] [2021-11-14 05:47:37,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:37,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:37,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:37,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:37,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005106736] [2021-11-14 05:47:37,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005106736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:37,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:37,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 05:47:37,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787621440] [2021-11-14 05:47:37,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:37,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:37,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:37,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:37,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 05:47:37,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,375 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:37,375 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) [2021-11-14 05:47:37,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:37,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-14 05:47:37,416 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:37,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:37,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1492037093, now seen corresponding path program 1 times [2021-11-14 05:47:37,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:37,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656413085] [2021-11-14 05:47:37,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:37,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:37,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:37,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:37,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656413085] [2021-11-14 05:47:37,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656413085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:37,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:37,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 05:47:37,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572875252] [2021-11-14 05:47:37,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:37,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 05:47:37,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:37,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 05:47:37,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 05:47:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,432 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:37,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:37,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:37,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:37,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-14 05:47:37,444 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:37,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:37,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1424606307, now seen corresponding path program 1 times [2021-11-14 05:47:37,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:37,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065433086] [2021-11-14 05:47:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:37,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:37,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:37,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:37,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065433086] [2021-11-14 05:47:37,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065433086] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:37,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764737809] [2021-11-14 05:47:37,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:37,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:37,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:37,469 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:37,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-14 05:47:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:37,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-14 05:47:37,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:37,560 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-14 05:47:37,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764737809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:37,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-14 05:47:37,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-14 05:47:37,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735686803] [2021-11-14 05:47:37,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:37,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:37,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:37,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:37,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-14 05:47:37,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,561 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:37,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:37,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:37,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:37,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:37,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:37,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:37,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:37,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-14 05:47:37,784 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:37,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:37,784 INFO L85 PathProgramCache]: Analyzing trace with hash 497340191, now seen corresponding path program 1 times [2021-11-14 05:47:37,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:37,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926869836] [2021-11-14 05:47:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:37,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:37,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:37,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:37,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926869836] [2021-11-14 05:47:37,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926869836] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:37,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319425068] [2021-11-14 05:47:37,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:37,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:37,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:37,805 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:37,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-14 05:47:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:37,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-14 05:47:37,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:37,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:37,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:37,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 05:47:37,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319425068] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:37,982 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:37,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-14 05:47:37,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449378393] [2021-11-14 05:47:37,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:37,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-14 05:47:37,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:37,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-14 05:47:37,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-14 05:47:37,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,987 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:37,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:37,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:37,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:37,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:37,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:37,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:38,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:38,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:38,307 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:38,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:38,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1632763208, now seen corresponding path program 1 times [2021-11-14 05:47:38,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:38,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203311014] [2021-11-14 05:47:38,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:38,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:38,321 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-14 05:47:38,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:38,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203311014] [2021-11-14 05:47:38,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203311014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:38,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:47:38,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 05:47:38,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738949663] [2021-11-14 05:47:38,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:38,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:47:38,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:38,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:47:38,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 05:47:38,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:38,322 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:38,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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) [2021-11-14 05:47:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:38,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:38,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:38,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:38,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-14 05:47:38,337 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:38,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:38,337 INFO L85 PathProgramCache]: Analyzing trace with hash 135046904, now seen corresponding path program 1 times [2021-11-14 05:47:38,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:38,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576589726] [2021-11-14 05:47:38,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:38,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-14 05:47:38,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:38,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576589726] [2021-11-14 05:47:38,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576589726] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:38,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960874832] [2021-11-14 05:47:38,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:38,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:38,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:38,359 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:38,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-14 05:47:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:38,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-14 05:47:38,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-14 05:47:38,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:38,708 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-14 05:47:38,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960874832] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:38,708 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:38,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 13 [2021-11-14 05:47:38,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475922496] [2021-11-14 05:47:38,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:38,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-14 05:47:38,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:38,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-14 05:47:38,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-14 05:47:38,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:38,709 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:38,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:38,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:38,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:38,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:38,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:38,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:38,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:39,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:39,028 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:39,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:39,028 INFO L85 PathProgramCache]: Analyzing trace with hash 472432621, now seen corresponding path program 1 times [2021-11-14 05:47:39,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:39,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249261313] [2021-11-14 05:47:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:39,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:39,065 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:39,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:39,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249261313] [2021-11-14 05:47:39,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249261313] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:39,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404442255] [2021-11-14 05:47:39,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:39,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:39,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:39,066 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:39,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-14 05:47:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:39,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-14 05:47:39,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:39,252 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:39,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:39,412 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:39,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404442255] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:39,412 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:39,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2021-11-14 05:47:39,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800101838] [2021-11-14 05:47:39,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:39,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-14 05:47:39,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:39,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-14 05:47:39,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-11-14 05:47:39,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:39,413 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:39,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:39,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:39,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:39,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:39,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:39,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:39,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:39,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:39,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:39,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:39,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:39,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-11-14 05:47:39,724 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:39,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:39,725 INFO L85 PathProgramCache]: Analyzing trace with hash 436445675, now seen corresponding path program 1 times [2021-11-14 05:47:39,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:39,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79090319] [2021-11-14 05:47:39,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:39,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:39,765 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:39,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:39,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79090319] [2021-11-14 05:47:39,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79090319] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:39,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089228692] [2021-11-14 05:47:39,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:39,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:39,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:39,767 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:39,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-14 05:47:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:39,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-14 05:47:39,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:39,982 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:39,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:40,134 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 05:47:40,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089228692] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:40,134 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:40,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2021-11-14 05:47:40,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159669045] [2021-11-14 05:47:40,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:40,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-14 05:47:40,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:40,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-14 05:47:40,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-14 05:47:40,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:40,135 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:40,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.538461538461538) internal successors, (137), 13 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:40,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:40,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:40,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:40,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:40,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:40,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:40,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:40,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:40,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:40,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:40,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:40,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:40,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:40,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:40,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:40,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:40,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:40,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:40,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:40,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-11-14 05:47:40,516 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:40,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:40,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2005956918, now seen corresponding path program 1 times [2021-11-14 05:47:40,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:40,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918324190] [2021-11-14 05:47:40,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:40,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:40,562 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 48 proven. 54 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-14 05:47:40,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:40,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918324190] [2021-11-14 05:47:40,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918324190] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:40,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180768973] [2021-11-14 05:47:40,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:40,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:40,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:40,563 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:40,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-14 05:47:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:40,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-14 05:47:40,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:40,795 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 48 proven. 54 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-14 05:47:40,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:40,973 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 48 proven. 54 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-14 05:47:40,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180768973] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:40,973 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:40,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 12 [2021-11-14 05:47:40,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555639834] [2021-11-14 05:47:40,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:40,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-14 05:47:40,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:40,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-14 05:47:40,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-14 05:47:40,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:40,974 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:40,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:40,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:40,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:40,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:40,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:40,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:40,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:40,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:40,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:40,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:40,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:41,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 05:47:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:41,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:41,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:41,335 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:41,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:41,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1833104552, now seen corresponding path program 1 times [2021-11-14 05:47:41,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:41,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697566092] [2021-11-14 05:47:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:41,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:41,408 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-14 05:47:41,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:41,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697566092] [2021-11-14 05:47:41,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697566092] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:41,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140279811] [2021-11-14 05:47:41,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:41,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:41,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:41,409 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:41,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-14 05:47:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:41,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-14 05:47:41,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-14 05:47:41,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-14 05:47:41,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140279811] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:41,830 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:41,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 21 [2021-11-14 05:47:41,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008869908] [2021-11-14 05:47:41,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:41,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-14 05:47:41,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:41,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-14 05:47:41,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2021-11-14 05:47:41,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:41,831 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:41,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.952380952380953) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:41,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:41,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:41,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:41,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:41,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:41,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:41,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:41,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 05:47:41,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:41,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:41,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 05:47:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:42,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-14 05:47:42,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:42,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:42,499 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:42,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:42,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1170576922, now seen corresponding path program 1 times [2021-11-14 05:47:42,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:42,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544863559] [2021-11-14 05:47:42,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:42,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 88 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:42,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:42,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544863559] [2021-11-14 05:47:42,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544863559] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:42,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287339092] [2021-11-14 05:47:42,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:42,580 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:42,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:42,581 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:42,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-14 05:47:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:42,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-14 05:47:42,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:42,838 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 05:47:42,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-14 05:47:42,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287339092] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:47:42,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-14 05:47:42,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 15 [2021-11-14 05:47:42,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784735972] [2021-11-14 05:47:42,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:47:42,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-14 05:47:42,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:42,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-14 05:47:42,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-11-14 05:47:42,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:42,839 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:42,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:42,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:42,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:42,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:42,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:42,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:42,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:42,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:42,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 05:47:42,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:42,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:42,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-11-14 05:47:42,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:43,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:43,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 05:47:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-14 05:47:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-14 05:47:43,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-11-14 05:47:43,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:43,452 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:43,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:43,452 INFO L85 PathProgramCache]: Analyzing trace with hash -553609121, now seen corresponding path program 1 times [2021-11-14 05:47:43,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:43,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48293616] [2021-11-14 05:47:43,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:43,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:43,522 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 61 proven. 44 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-14 05:47:43,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:43,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48293616] [2021-11-14 05:47:43,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48293616] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:43,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005845723] [2021-11-14 05:47:43,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:43,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:43,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:43,523 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:43,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-14 05:47:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:43,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-14 05:47:43,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 89 proven. 16 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-14 05:47:43,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 89 proven. 16 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-14 05:47:44,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005845723] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:44,081 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:44,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 14 [2021-11-14 05:47:44,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900198984] [2021-11-14 05:47:44,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:44,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-14 05:47:44,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:44,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-14 05:47:44,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-11-14 05:47:44,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:44,082 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:44,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-14 05:47:44,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:44,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 05:47:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-14 05:47:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-14 05:47:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-14 05:47:44,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:44,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-14 05:47:44,750 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:44,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:44,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1731794899, now seen corresponding path program 2 times [2021-11-14 05:47:44,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:44,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373757124] [2021-11-14 05:47:44,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:44,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:44,821 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-14 05:47:44,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:44,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373757124] [2021-11-14 05:47:44,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373757124] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:44,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966410064] [2021-11-14 05:47:44,821 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-14 05:47:44,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:44,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:44,822 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:44,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-14 05:47:44,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-14 05:47:44,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 05:47:44,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-14 05:47:44,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:45,127 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-14 05:47:45,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:45,349 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-14 05:47:45,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966410064] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:45,350 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:45,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 14 [2021-11-14 05:47:45,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486082107] [2021-11-14 05:47:45,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:45,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-14 05:47:45,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:45,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-14 05:47:45,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-14 05:47:45,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:45,351 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:45,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-14 05:47:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-14 05:47:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-14 05:47:53,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-11-14 05:47:53,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-11-14 05:47:53,835 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:47:53,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:47:53,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1195770359, now seen corresponding path program 1 times [2021-11-14 05:47:53,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:47:53,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804307232] [2021-11-14 05:47:53,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:53,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:47:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-14 05:47:53,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:47:53,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804307232] [2021-11-14 05:47:53,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804307232] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:47:53,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292972647] [2021-11-14 05:47:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:47:53,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:47:53,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:47:53,913 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:47:53,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-14 05:47:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:47:53,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-14 05:47:53,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:47:54,184 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-14 05:47:54,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:47:54,370 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-14 05:47:54,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292972647] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:47:54,370 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:47:54,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 14 [2021-11-14 05:47:54,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136746166] [2021-11-14 05:47:54,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:47:54,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-14 05:47:54,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:47:54,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-14 05:47:54,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-14 05:47:54,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:54,371 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:47:54,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:47:54,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-14 05:47:54,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-14 05:47:54,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-14 05:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-14 05:49:18,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-14 05:49:18,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-14 05:49:18,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2021-11-14 05:49:18,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-11-14 05:49:18,342 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:49:18,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:49:18,342 INFO L85 PathProgramCache]: Analyzing trace with hash -243684453, now seen corresponding path program 1 times [2021-11-14 05:49:18,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:49:18,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917783262] [2021-11-14 05:49:18,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:49:18,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:49:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:49:18,394 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 48 proven. 46 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-11-14 05:49:18,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:49:18,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917783262] [2021-11-14 05:49:18,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917783262] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:49:18,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076422531] [2021-11-14 05:49:18,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:49:18,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:49:18,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:49:18,395 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:49:18,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-14 05:49:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:49:18,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-14 05:49:18,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:49:18,673 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 48 proven. 46 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-11-14 05:49:18,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:49:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 48 proven. 46 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-11-14 05:49:18,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076422531] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:49:18,896 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:49:18,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 12 [2021-11-14 05:49:18,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290897429] [2021-11-14 05:49:18,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:49:18,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-14 05:49:18,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:49:18,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-14 05:49:18,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-14 05:49:18,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:49:18,897 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:49:18,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 12 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-11-14 05:49:18,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:49:20,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:49:20,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:20,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:49:20,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:49:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-14 05:49:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-14 05:49:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:49:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-14 05:49:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2021-11-14 05:49:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-14 05:49:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-14 05:49:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-14 05:49:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-14 05:49:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-14 05:49:20,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-11-14 05:49:20,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-11-14 05:49:20,551 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:49:20,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:49:20,555 INFO L85 PathProgramCache]: Analyzing trace with hash -489506929, now seen corresponding path program 1 times [2021-11-14 05:49:20,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:49:20,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478564377] [2021-11-14 05:49:20,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:49:20,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:49:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:49:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-11-14 05:49:20,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:49:20,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478564377] [2021-11-14 05:49:20,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478564377] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 05:49:20,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 05:49:20,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 05:49:20,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897296210] [2021-11-14 05:49:20,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 05:49:20,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 05:49:20,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:49:20,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 05:49:20,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 05:49:20,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:49:20,582 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:49:20,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:49:20,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:49:20,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:20,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:49:20,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:20,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:49:20,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:20,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-14 05:49:20,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-14 05:49:20,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:49:20,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-14 05:49:20,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2021-11-14 05:49:20,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-14 05:49:20,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-14 05:49:20,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-14 05:49:20,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-11-14 05:49:20,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-14 05:49:20,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:49:20,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-14 05:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:20,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-14 05:49:20,607 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 05:49:20,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 05:49:20,607 INFO L85 PathProgramCache]: Analyzing trace with hash 364762019, now seen corresponding path program 2 times [2021-11-14 05:49:20,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 05:49:20,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895275671] [2021-11-14 05:49:20,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 05:49:20,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 05:49:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 05:49:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 13 proven. 77 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-14 05:49:20,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 05:49:20,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895275671] [2021-11-14 05:49:20,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895275671] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 05:49:20,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354142381] [2021-11-14 05:49:20,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-14 05:49:20,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 05:49:20,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 05:49:20,671 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 05:49:20,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-14 05:49:20,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-14 05:49:20,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 05:49:20,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-14 05:49:20,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 05:49:20,947 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-14 05:49:20,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 05:49:21,173 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-14 05:49:21,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354142381] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 05:49:21,174 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 05:49:21,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2021-11-14 05:49:21,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488035807] [2021-11-14 05:49:21,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 05:49:21,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-14 05:49:21,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 05:49:21,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-14 05:49:21,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2021-11-14 05:49:21,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:49:21,175 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 05:49:21,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.666666666666666) internal successors, (228), 18 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 05:49:21,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.