/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-29 00:59:04,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-29 00:59:04,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-29 00:59:04,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-29 00:59:04,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-29 00:59:04,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-29 00:59:04,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-29 00:59:04,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-29 00:59:04,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-29 00:59:04,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-29 00:59:04,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-29 00:59:04,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-29 00:59:04,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-29 00:59:04,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-29 00:59:04,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-29 00:59:04,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-29 00:59:04,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-29 00:59:04,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-29 00:59:04,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-29 00:59:04,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-29 00:59:04,918 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.epf [2022-01-29 00:59:04,942 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-29 00:59:04,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-29 00:59:04,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-29 00:59:04,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-29 00:59:04,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-29 00:59:04,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-29 00:59:04,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-29 00:59:04,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-29 00:59:04,945 INFO L138 SettingsManager]: * Use SBE=true [2022-01-29 00:59:04,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-29 00:59:04,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-29 00:59:04,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-29 00:59:04,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-29 00:59:04,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-29 00:59:04,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-29 00:59:04,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-29 00:59:04,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-29 00:59:04,946 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-29 00:59:04,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-29 00:59:04,946 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-29 00:59:04,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-29 00:59:04,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-29 00:59:04,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-29 00:59:04,946 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-29 00:59:04,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-29 00:59:04,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 00:59:04,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-29 00:59:04,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-29 00:59:04,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-29 00:59:04,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-29 00:59:04,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-29 00:59:04,948 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-29 00:59:04,948 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-01-29 00:59:04,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-29 00:59:04,948 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-01-29 00:59:04,948 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-01-29 00:59:04,948 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-29 00:59:05,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-29 00:59:05,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-29 00:59:05,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-29 00:59:05,146 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-29 00:59:05,147 INFO L275 PluginConnector]: CDTParser initialized [2022-01-29 00:59:05,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-10.i [2022-01-29 00:59:05,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779cd93bb/e589742db0354322a0a9686f2acf71b5/FLAG8c3e3bb5b [2022-01-29 00:59:05,543 INFO L306 CDTParser]: Found 1 translation units. [2022-01-29 00:59:05,544 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-10.i [2022-01-29 00:59:05,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779cd93bb/e589742db0354322a0a9686f2acf71b5/FLAG8c3e3bb5b [2022-01-29 00:59:05,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779cd93bb/e589742db0354322a0a9686f2acf71b5 [2022-01-29 00:59:05,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-29 00:59:05,933 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-29 00:59:05,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-29 00:59:05,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-29 00:59:05,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-29 00:59:05,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 12:59:05" (1/1) ... [2022-01-29 00:59:05,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a002a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:05, skipping insertion in model container [2022-01-29 00:59:05,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 12:59:05" (1/1) ... [2022-01-29 00:59:05,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-29 00:59:05,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-29 00:59:06,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-10.i[30190,30203] [2022-01-29 00:59:06,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-29 00:59:06,205 INFO L203 MainTranslator]: Completed pre-run [2022-01-29 00:59:06,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-10.i[30190,30203] [2022-01-29 00:59:06,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-29 00:59:06,254 INFO L208 MainTranslator]: Completed translation [2022-01-29 00:59:06,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:06 WrapperNode [2022-01-29 00:59:06,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-29 00:59:06,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-29 00:59:06,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-29 00:59:06,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-29 00:59:06,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:06" (1/1) ... [2022-01-29 00:59:06,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:06" (1/1) ... [2022-01-29 00:59:06,286 INFO L137 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2022-01-29 00:59:06,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-29 00:59:06,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-29 00:59:06,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-29 00:59:06,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-29 00:59:06,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:06" (1/1) ... [2022-01-29 00:59:06,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:06" (1/1) ... [2022-01-29 00:59:06,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:06" (1/1) ... [2022-01-29 00:59:06,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:06" (1/1) ... [2022-01-29 00:59:06,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:06" (1/1) ... [2022-01-29 00:59:06,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:06" (1/1) ... [2022-01-29 00:59:06,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:06" (1/1) ... [2022-01-29 00:59:06,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-29 00:59:06,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-29 00:59:06,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-29 00:59:06,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-29 00:59:06,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:06" (1/1) ... [2022-01-29 00:59:06,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 00:59:06,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:06,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-29 00:59:06,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-29 00:59:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-29 00:59:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-01-29 00:59:06,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-01-29 00:59:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-29 00:59:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-29 00:59:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-29 00:59:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-29 00:59:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-29 00:59:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-01-29 00:59:06,372 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-01-29 00:59:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-29 00:59:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-29 00:59:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-29 00:59:06,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-29 00:59:06,373 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-29 00:59:06,522 INFO L234 CfgBuilder]: Building ICFG [2022-01-29 00:59:06,523 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-29 00:59:06,700 INFO L275 CfgBuilder]: Performing block encoding [2022-01-29 00:59:06,705 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-29 00:59:06,705 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-29 00:59:06,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 12:59:06 BoogieIcfgContainer [2022-01-29 00:59:06,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-29 00:59:06,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-29 00:59:06,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-29 00:59:06,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-29 00:59:06,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 12:59:05" (1/3) ... [2022-01-29 00:59:06,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d318f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 12:59:06, skipping insertion in model container [2022-01-29 00:59:06,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 12:59:06" (2/3) ... [2022-01-29 00:59:06,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d318f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 12:59:06, skipping insertion in model container [2022-01-29 00:59:06,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 12:59:06" (3/3) ... [2022-01-29 00:59:06,714 INFO L111 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-10.i [2022-01-29 00:59:06,717 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-29 00:59:06,717 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-29 00:59:06,717 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-29 00:59:06,717 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-29 00:59:06,745 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,746 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,746 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,746 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,746 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,747 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,747 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,747 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,751 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,751 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,751 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,751 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,752 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,752 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,752 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,752 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,752 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,752 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,752 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,753 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,753 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,753 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,753 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,753 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,758 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,758 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,758 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,758 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,763 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,763 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,763 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,763 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:06,766 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-29 00:59:06,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 00:59:06,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:06,804 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) [2022-01-29 00:59:06,805 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 [2022-01-29 00:59:06,834 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2022-01-29 00:59:06,839 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 [2022-01-29 00:59:06,839 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-29 00:59:06,933 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:06,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:06,937 INFO L85 PathProgramCache]: Analyzing trace with hash -211201094, now seen corresponding path program 1 times [2022-01-29 00:59:06,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:06,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350520812] [2022-01-29 00:59:06,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:06,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:07,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:07,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:07,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350520812] [2022-01-29 00:59:07,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350520812] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:07,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:07,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 00:59:07,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677711550] [2022-01-29 00:59:07,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:07,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 00:59:07,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:07,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 00:59:07,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 00:59:07,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:07,108 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:07,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:07,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:07,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:07,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-29 00:59:07,122 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:07,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:07,125 INFO L85 PathProgramCache]: Analyzing trace with hash -407714599, now seen corresponding path program 1 times [2022-01-29 00:59:07,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:07,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255177144] [2022-01-29 00:59:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:07,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:07,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:07,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255177144] [2022-01-29 00:59:07,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255177144] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:07,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:07,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 00:59:07,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525218696] [2022-01-29 00:59:07,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:07,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 00:59:07,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:07,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 00:59:07,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 00:59:07,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:07,220 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:07,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:07,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:07,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:07,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:07,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-29 00:59:07,320 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:07,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:07,321 INFO L85 PathProgramCache]: Analyzing trace with hash 269435223, now seen corresponding path program 1 times [2022-01-29 00:59:07,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:07,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448117448] [2022-01-29 00:59:07,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:07,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:07,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:07,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:07,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448117448] [2022-01-29 00:59:07,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448117448] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:07,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517223239] [2022-01-29 00:59:07,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:07,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:07,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:07,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 00:59:07,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-29 00:59:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:07,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-29 00:59:07,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:07,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:07,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:07,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:07,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517223239] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:07,765 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:07,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-29 00:59:07,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511545097] [2022-01-29 00:59:07,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:07,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-29 00:59:07,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:07,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-29 00:59:07,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-29 00:59:07,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:07,768 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:07,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:07,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:07,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:07,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:07,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:07,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-29 00:59:07,824 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-29 00:59:07,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-29 00:59:08,031 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,SelfDestructingSolverStorable2 [2022-01-29 00:59:08,042 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-29 00:59:08,042 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was SAFE (1/2) [2022-01-29 00:59:08,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 00:59:08,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:08,046 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 00:59:08,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-01-29 00:59:08,049 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-01-29 00:59:08,049 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 [2022-01-29 00:59:08,049 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-29 00:59:08,071 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:08,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:08,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1507342292, now seen corresponding path program 1 times [2022-01-29 00:59:08,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:08,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691549489] [2022-01-29 00:59:08,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:08,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-29 00:59:08,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:08,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691549489] [2022-01-29 00:59:08,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691549489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:08,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:08,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 00:59:08,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278083885] [2022-01-29 00:59:08,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:08,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 00:59:08,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:08,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 00:59:08,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 00:59:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,090 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:08,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:08,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-29 00:59:08,094 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:08,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:08,095 INFO L85 PathProgramCache]: Analyzing trace with hash -154032595, now seen corresponding path program 1 times [2022-01-29 00:59:08,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:08,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323573002] [2022-01-29 00:59:08,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:08,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:08,115 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-29 00:59:08,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:08,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323573002] [2022-01-29 00:59:08,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323573002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:08,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:08,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 00:59:08,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580642885] [2022-01-29 00:59:08,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:08,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 00:59:08,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:08,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 00:59:08,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 00:59:08,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,116 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:08,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:08,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:08,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-29 00:59:08,146 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:08,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:08,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1897890732, now seen corresponding path program 1 times [2022-01-29 00:59:08,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:08,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997486938] [2022-01-29 00:59:08,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:08,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:08,185 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-29 00:59:08,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:08,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997486938] [2022-01-29 00:59:08,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997486938] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:08,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411054389] [2022-01-29 00:59:08,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:08,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:08,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:08,217 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 00:59:08,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-29 00:59:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:08,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-29 00:59:08,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:08,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-29 00:59:08,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:08,443 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-29 00:59:08,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411054389] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:08,443 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:08,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-29 00:59:08,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056395188] [2022-01-29 00:59:08,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:08,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-29 00:59:08,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:08,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-29 00:59:08,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-29 00:59:08,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,445 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:08,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:08,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:08,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:08,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-29 00:59:08,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:08,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:08,691 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:08,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:08,692 INFO L85 PathProgramCache]: Analyzing trace with hash -121871665, now seen corresponding path program 1 times [2022-01-29 00:59:08,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:08,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150178616] [2022-01-29 00:59:08,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:08,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 00:59:08,701 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-29 00:59:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 00:59:08,739 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-29 00:59:08,739 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-29 00:59:08,739 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-01-29 00:59:08,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-29 00:59:08,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-29 00:59:08,742 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-29 00:59:08,743 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2022-01-29 00:59:08,743 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-29 00:59:08,743 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-29 00:59:08,752 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,752 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,752 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,752 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,752 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,753 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,754 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,754 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,754 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,754 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,755 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,755 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,755 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,755 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,755 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,755 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,755 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,755 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,755 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,755 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,755 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,755 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,756 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,756 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,756 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,756 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,756 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,756 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,756 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,756 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,757 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,757 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,757 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,757 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,757 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,757 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,757 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,757 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,758 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,758 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,758 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,758 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,758 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,758 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,759 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,759 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,759 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,759 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,759 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,759 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:08,762 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-01-29 00:59:08,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 00:59:08,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:08,764 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 00:59:08,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-01-29 00:59:08,767 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of2ForFork1 ======== [2022-01-29 00:59:08,768 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 [2022-01-29 00:59:08,768 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-29 00:59:08,820 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:08,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:08,821 INFO L85 PathProgramCache]: Analyzing trace with hash -341074863, now seen corresponding path program 1 times [2022-01-29 00:59:08,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:08,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21339669] [2022-01-29 00:59:08,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:08,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:08,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:08,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:08,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21339669] [2022-01-29 00:59:08,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21339669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:08,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:08,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 00:59:08,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139082127] [2022-01-29 00:59:08,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:08,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 00:59:08,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:08,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 00:59:08,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 00:59:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,834 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:08,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:08,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-29 00:59:08,836 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:08,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:08,836 INFO L85 PathProgramCache]: Analyzing trace with hash -537588368, now seen corresponding path program 1 times [2022-01-29 00:59:08,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:08,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91169034] [2022-01-29 00:59:08,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:08,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:08,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:08,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:08,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91169034] [2022-01-29 00:59:08,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91169034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:08,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:08,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 00:59:08,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248415570] [2022-01-29 00:59:08,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:08,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 00:59:08,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:08,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 00:59:08,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 00:59:08,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,852 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:08,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:08,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:08,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-29 00:59:08,897 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:08,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:08,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1353950055, now seen corresponding path program 1 times [2022-01-29 00:59:08,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:08,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940868230] [2022-01-29 00:59:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:08,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:08,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:08,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940868230] [2022-01-29 00:59:08,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940868230] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:08,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438442784] [2022-01-29 00:59:08,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:08,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:08,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:08,925 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 00:59:08,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-29 00:59:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:08,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-29 00:59:08,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:09,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:09,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:09,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:09,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438442784] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:09,141 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:09,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-29 00:59:09,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750027397] [2022-01-29 00:59:09,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:09,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-29 00:59:09,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:09,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-29 00:59:09,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-29 00:59:09,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,145 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:09,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:09,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:09,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-29 00:59:09,245 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-29 00:59:09,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-29 00:59:09,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:09,460 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-29 00:59:09,461 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread1of2ForFork1 was SAFE (1/3) [2022-01-29 00:59:09,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 00:59:09,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:09,463 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 00:59:09,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2022-01-29 00:59:09,465 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread2of2ForFork1 ======== [2022-01-29 00:59:09,467 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 [2022-01-29 00:59:09,467 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-29 00:59:09,515 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:09,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:09,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1368402137, now seen corresponding path program 1 times [2022-01-29 00:59:09,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:09,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943812765] [2022-01-29 00:59:09,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:09,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:09,540 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-29 00:59:09,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:09,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943812765] [2022-01-29 00:59:09,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943812765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:09,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:09,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 00:59:09,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252898710] [2022-01-29 00:59:09,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:09,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 00:59:09,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:09,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 00:59:09,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 00:59:09,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,544 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:09,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:09,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-29 00:59:09,548 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:09,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:09,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1435408890, now seen corresponding path program 1 times [2022-01-29 00:59:09,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:09,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965077744] [2022-01-29 00:59:09,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:09,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-29 00:59:09,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:09,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965077744] [2022-01-29 00:59:09,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965077744] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:09,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:09,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 00:59:09,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609030161] [2022-01-29 00:59:09,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:09,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 00:59:09,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:09,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 00:59:09,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 00:59:09,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,564 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:09,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:09,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:09,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-29 00:59:09,592 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:09,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:09,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1580908477, now seen corresponding path program 1 times [2022-01-29 00:59:09,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:09,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626506862] [2022-01-29 00:59:09,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:09,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-29 00:59:09,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:09,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626506862] [2022-01-29 00:59:09,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626506862] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:09,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142593040] [2022-01-29 00:59:09,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:09,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:09,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:09,644 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 00:59:09,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-29 00:59:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:09,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-29 00:59:09,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:09,787 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-29 00:59:09,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-29 00:59:09,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142593040] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:09,912 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:09,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-29 00:59:09,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446875888] [2022-01-29 00:59:09,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:09,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-29 00:59:09,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:09,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-29 00:59:09,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-29 00:59:09,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,916 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:09,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:09,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:09,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:09,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:10,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-29 00:59:10,015 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-29 00:59:10,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:10,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-01-29 00:59:10,221 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-29 00:59:10,222 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread2of2ForFork1 was SAFE (2/3) [2022-01-29 00:59:10,224 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 00:59:10,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:10,225 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 00:59:10,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2022-01-29 00:59:10,228 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-01-29 00:59:10,228 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 [2022-01-29 00:59:10,229 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-29 00:59:10,246 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:10,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:10,247 INFO L85 PathProgramCache]: Analyzing trace with hash -833843574, now seen corresponding path program 1 times [2022-01-29 00:59:10,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:10,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304402456] [2022-01-29 00:59:10,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:10,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:10,259 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:10,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:10,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304402456] [2022-01-29 00:59:10,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304402456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:10,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:10,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 00:59:10,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876184867] [2022-01-29 00:59:10,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:10,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 00:59:10,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:10,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 00:59:10,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 00:59:10,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,260 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:10,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:10,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-29 00:59:10,263 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:10,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:10,263 INFO L85 PathProgramCache]: Analyzing trace with hash 127770443, now seen corresponding path program 1 times [2022-01-29 00:59:10,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:10,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839001941] [2022-01-29 00:59:10,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:10,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:10,282 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:10,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:10,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839001941] [2022-01-29 00:59:10,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839001941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:10,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:10,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 00:59:10,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068243997] [2022-01-29 00:59:10,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:10,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 00:59:10,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:10,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 00:59:10,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 00:59:10,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,283 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:10,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:10,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:10,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-29 00:59:10,301 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:10,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:10,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1443866943, now seen corresponding path program 1 times [2022-01-29 00:59:10,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:10,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580736426] [2022-01-29 00:59:10,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:10,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:10,328 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:10,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:10,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580736426] [2022-01-29 00:59:10,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580736426] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:10,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130657368] [2022-01-29 00:59:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:10,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:10,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:10,330 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 00:59:10,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-29 00:59:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:10,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-29 00:59:10,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:10,466 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:10,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:10,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130657368] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:10,538 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:10,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-29 00:59:10,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807665729] [2022-01-29 00:59:10,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:10,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-29 00:59:10,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:10,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-29 00:59:10,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-29 00:59:10,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,539 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:10,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:10,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:10,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-29 00:59:10,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:10,815 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,SelfDestructingSolverStorable15 [2022-01-29 00:59:10,815 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:10,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:10,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1479036618, now seen corresponding path program 1 times [2022-01-29 00:59:10,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:10,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822730657] [2022-01-29 00:59:10,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:10,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 00:59:10,827 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-29 00:59:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 00:59:10,844 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-29 00:59:10,844 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-29 00:59:10,844 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-01-29 00:59:10,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-29 00:59:10,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-29 00:59:10,846 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-29 00:59:10,846 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (3/3) [2022-01-29 00:59:10,846 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-29 00:59:10,846 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-01-29 00:59:10,852 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,852 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,852 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,853 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,854 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,855 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,856 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,857 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,857 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,857 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,857 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,857 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,857 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,857 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,857 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,857 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,857 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,857 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,858 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,858 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,858 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,858 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,858 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,858 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,858 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,858 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,858 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,858 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:10,860 INFO L148 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-01-29 00:59:10,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 00:59:10,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:10,862 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 00:59:10,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2022-01-29 00:59:10,864 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-01-29 00:59:10,865 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 [2022-01-29 00:59:10,865 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-29 00:59:10,898 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:10,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:10,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1180890360, now seen corresponding path program 1 times [2022-01-29 00:59:10,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:10,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774193930] [2022-01-29 00:59:10,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:10,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:10,915 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:10,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:10,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774193930] [2022-01-29 00:59:10,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774193930] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:10,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:10,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 00:59:10,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527271902] [2022-01-29 00:59:10,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:10,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 00:59:10,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:10,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 00:59:10,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 00:59:10,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,916 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:10,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:10,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-29 00:59:10,920 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:10,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:10,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1510656121, now seen corresponding path program 1 times [2022-01-29 00:59:10,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:10,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917940483] [2022-01-29 00:59:10,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:10,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:10,936 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:10,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:10,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917940483] [2022-01-29 00:59:10,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917940483] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:10,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:10,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 00:59:10,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397175022] [2022-01-29 00:59:10,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:10,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 00:59:10,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:10,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 00:59:10,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 00:59:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,938 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:10,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:10,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:10,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:10,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-29 00:59:10,961 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:10,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:10,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2125452762, now seen corresponding path program 1 times [2022-01-29 00:59:10,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:10,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17227692] [2022-01-29 00:59:10,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:10,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:10,992 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:10,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:10,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17227692] [2022-01-29 00:59:10,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17227692] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:10,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144819674] [2022-01-29 00:59:10,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:10,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:10,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:10,994 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 00:59:10,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-29 00:59:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:11,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-29 00:59:11,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:11,141 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:11,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:11,221 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:11,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144819674] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:11,221 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:11,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-29 00:59:11,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781459152] [2022-01-29 00:59:11,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:11,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-29 00:59:11,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-29 00:59:11,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-29 00:59:11,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:11,222 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:11,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:11,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:11,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:11,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:11,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:11,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:11,543 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:11,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:11,543 INFO L85 PathProgramCache]: Analyzing trace with hash 589266911, now seen corresponding path program 1 times [2022-01-29 00:59:11,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:11,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120266030] [2022-01-29 00:59:11,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:11,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:11,575 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-01-29 00:59:11,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:11,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120266030] [2022-01-29 00:59:11,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120266030] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:11,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636023507] [2022-01-29 00:59:11,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:11,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:11,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:11,576 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 00:59:11,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-29 00:59:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:11,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-29 00:59:11,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:11,772 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:11,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:11,936 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:11,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636023507] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:11,936 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:11,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-01-29 00:59:11,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249715960] [2022-01-29 00:59:11,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:11,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-29 00:59:11,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:11,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-29 00:59:11,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-01-29 00:59:11,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:11,938 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:11,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:11,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:11,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:11,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:11,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:12,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:12,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-29 00:59:12,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:12,223 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,SelfDestructingSolverStorable20 [2022-01-29 00:59:12,223 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:12,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:12,224 INFO L85 PathProgramCache]: Analyzing trace with hash 531540147, now seen corresponding path program 1 times [2022-01-29 00:59:12,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:12,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696359709] [2022-01-29 00:59:12,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:12,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 00:59:12,233 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-29 00:59:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 00:59:12,243 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-29 00:59:12,243 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-29 00:59:12,243 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-29 00:59:12,243 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 2 remaining) [2022-01-29 00:59:12,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-29 00:59:12,244 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-29 00:59:12,244 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/4) [2022-01-29 00:59:12,244 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-29 00:59:12,244 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-01-29 00:59:12,253 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,253 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,253 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,253 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,253 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,253 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,253 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,253 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,254 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,255 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,256 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,257 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,258 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,258 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,258 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,258 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,258 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,258 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,258 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,258 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,258 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,258 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,258 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,258 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,259 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,260 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,261 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:12,262 INFO L148 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2022-01-29 00:59:12,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 00:59:12,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:12,264 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) [2022-01-29 00:59:12,265 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 [2022-01-29 00:59:12,267 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread4of4ForFork1 ======== [2022-01-29 00:59:12,267 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 [2022-01-29 00:59:12,267 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-29 00:59:12,338 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:12,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:12,339 INFO L85 PathProgramCache]: Analyzing trace with hash -292138606, now seen corresponding path program 1 times [2022-01-29 00:59:12,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:12,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020582738] [2022-01-29 00:59:12,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:12,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:12,349 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:12,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:12,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020582738] [2022-01-29 00:59:12,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020582738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:12,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:12,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 00:59:12,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254425592] [2022-01-29 00:59:12,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:12,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 00:59:12,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:12,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 00:59:12,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 00:59:12,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,350 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:12,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:12,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-29 00:59:12,354 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:12,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:12,354 INFO L85 PathProgramCache]: Analyzing trace with hash 477031409, now seen corresponding path program 1 times [2022-01-29 00:59:12,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:12,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898865516] [2022-01-29 00:59:12,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:12,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:12,368 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:12,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:12,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898865516] [2022-01-29 00:59:12,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898865516] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:12,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:12,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 00:59:12,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119507284] [2022-01-29 00:59:12,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:12,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 00:59:12,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:12,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 00:59:12,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 00:59:12,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,369 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:12,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:12,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:12,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-29 00:59:12,403 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:12,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:12,403 INFO L85 PathProgramCache]: Analyzing trace with hash -959640894, now seen corresponding path program 1 times [2022-01-29 00:59:12,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:12,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648568399] [2022-01-29 00:59:12,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:12,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:12,428 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:12,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:12,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648568399] [2022-01-29 00:59:12,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648568399] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:12,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006627519] [2022-01-29 00:59:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:12,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:12,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:12,430 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 00:59:12,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-29 00:59:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:12,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-29 00:59:12,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:12,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:12,698 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:12,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006627519] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:12,699 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:12,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-29 00:59:12,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976128363] [2022-01-29 00:59:12,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:12,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-29 00:59:12,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:12,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-29 00:59:12,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-29 00:59:12,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,700 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:12,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:12,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:12,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:12,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:12,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:12,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:13,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:13,031 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:13,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:13,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1151422631, now seen corresponding path program 1 times [2022-01-29 00:59:13,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:13,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976204637] [2022-01-29 00:59:13,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:13,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-01-29 00:59:13,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:13,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976204637] [2022-01-29 00:59:13,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976204637] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:13,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75676107] [2022-01-29 00:59:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:13,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:13,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:13,070 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 00:59:13,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-29 00:59:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:13,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-29 00:59:13,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:13,349 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:13,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:13,585 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:13,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75676107] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:13,585 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:13,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-01-29 00:59:13,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898679218] [2022-01-29 00:59:13,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:13,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-29 00:59:13,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:13,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-29 00:59:13,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-01-29 00:59:13,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:13,586 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:13,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.473684210526315) internal successors, (180), 19 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:13,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:13,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:13,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:13,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:15,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:15,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:15,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:15,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-29 00:59:15,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-29 00:59:15,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:15,719 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,SelfDestructingSolverStorable25 [2022-01-29 00:59:15,720 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-29 00:59:15,720 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread4of4ForFork1 was SAFE (1/5) [2022-01-29 00:59:15,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 00:59:15,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:15,723 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 00:59:15,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process [2022-01-29 00:59:15,726 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread3of4ForFork1 ======== [2022-01-29 00:59:15,726 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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 [2022-01-29 00:59:15,726 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-29 00:59:15,788 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:15,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:15,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1638889098, now seen corresponding path program 1 times [2022-01-29 00:59:15,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:15,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728314990] [2022-01-29 00:59:15,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:15,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:15,798 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:15,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:15,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728314990] [2022-01-29 00:59:15,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728314990] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:15,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:15,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 00:59:15,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032730691] [2022-01-29 00:59:15,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:15,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 00:59:15,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:15,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 00:59:15,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 00:59:15,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:15,801 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:15,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 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) [2022-01-29 00:59:15,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:15,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:15,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-29 00:59:15,804 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:15,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:15,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1023274199, now seen corresponding path program 1 times [2022-01-29 00:59:15,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:15,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830203580] [2022-01-29 00:59:15,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:15,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:15,818 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:15,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:15,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830203580] [2022-01-29 00:59:15,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830203580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:15,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:15,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 00:59:15,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286282323] [2022-01-29 00:59:15,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:15,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 00:59:15,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:15,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 00:59:15,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 00:59:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:15,819 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:15,820 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) [2022-01-29 00:59:15,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:15,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:15,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:15,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:15,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-29 00:59:15,860 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:15,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:15,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1845689414, now seen corresponding path program 1 times [2022-01-29 00:59:15,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:15,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112896321] [2022-01-29 00:59:15,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:15,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:15,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:15,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112896321] [2022-01-29 00:59:15,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112896321] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:15,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078869348] [2022-01-29 00:59:15,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:15,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:15,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:15,889 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 00:59:15,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-01-29 00:59:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:15,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-29 00:59:15,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:16,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:16,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078869348] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:16,132 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:16,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-29 00:59:16,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595010369] [2022-01-29 00:59:16,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:16,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-29 00:59:16,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:16,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-29 00:59:16,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-29 00:59:16,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:16,133 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:16,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:16,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:16,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:16,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:16,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:16,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:16,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:16,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:16,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-01-29 00:59:16,452 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:16,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:16,452 INFO L85 PathProgramCache]: Analyzing trace with hash -908170095, now seen corresponding path program 1 times [2022-01-29 00:59:16,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:16,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122752623] [2022-01-29 00:59:16,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:16,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-01-29 00:59:16,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:16,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122752623] [2022-01-29 00:59:16,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122752623] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:16,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476135644] [2022-01-29 00:59:16,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:16,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:16,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:16,524 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 00:59:16,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-01-29 00:59:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:16,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-29 00:59:16,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:16,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:16,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476135644] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:16,950 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:16,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-01-29 00:59:16,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032452289] [2022-01-29 00:59:16,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:16,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-29 00:59:16,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-29 00:59:16,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-01-29 00:59:16,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:16,951 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:16,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.210526315789474) internal successors, (175), 19 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:16,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:16,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:16,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:16,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:18,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-29 00:59:18,502 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-29 00:59:18,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-01-29 00:59:18,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:18,719 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-29 00:59:18,720 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread3of4ForFork1 was SAFE (2/5) [2022-01-29 00:59:18,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 00:59:18,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:18,721 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 00:59:18,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (21)] Waiting until timeout for monitored process [2022-01-29 00:59:18,769 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-01-29 00:59:18,770 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 [2022-01-29 00:59:18,770 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-29 00:59:18,814 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:18,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:18,815 INFO L85 PathProgramCache]: Analyzing trace with hash -196281834, now seen corresponding path program 1 times [2022-01-29 00:59:18,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:18,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404732651] [2022-01-29 00:59:18,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:18,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:18,830 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-29 00:59:18,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:18,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404732651] [2022-01-29 00:59:18,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404732651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:18,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:18,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 00:59:18,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82786497] [2022-01-29 00:59:18,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:18,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 00:59:18,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:18,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 00:59:18,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 00:59:18,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:18,832 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:18,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:18,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:18,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:18,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-29 00:59:18,837 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:18,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:18,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1774657623, now seen corresponding path program 1 times [2022-01-29 00:59:18,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:18,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853548242] [2022-01-29 00:59:18,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:18,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-29 00:59:18,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:18,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853548242] [2022-01-29 00:59:18,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853548242] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:18,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:18,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 00:59:18,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504991741] [2022-01-29 00:59:18,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:18,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 00:59:18,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:18,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 00:59:18,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 00:59:18,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:18,860 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:18,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:18,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:18,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:18,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:18,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:18,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-29 00:59:18,887 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:18,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:18,887 INFO L85 PathProgramCache]: Analyzing trace with hash -688195387, now seen corresponding path program 1 times [2022-01-29 00:59:18,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:18,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451042864] [2022-01-29 00:59:18,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:18,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:18,912 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-29 00:59:18,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:18,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451042864] [2022-01-29 00:59:18,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451042864] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:18,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292308223] [2022-01-29 00:59:18,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:18,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:18,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:18,914 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 00:59:18,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-01-29 00:59:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:19,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-29 00:59:19,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:19,091 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-29 00:59:19,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:19,179 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-29 00:59:19,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292308223] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:19,180 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:19,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-29 00:59:19,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446519889] [2022-01-29 00:59:19,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:19,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-29 00:59:19,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:19,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-29 00:59:19,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-29 00:59:19,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:19,181 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:19,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:19,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:19,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:19,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:19,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:19,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-01-29 00:59:19,461 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:19,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:19,461 INFO L85 PathProgramCache]: Analyzing trace with hash -300163996, now seen corresponding path program 1 times [2022-01-29 00:59:19,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:19,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789956785] [2022-01-29 00:59:19,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:19,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:19,501 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-01-29 00:59:19,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:19,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789956785] [2022-01-29 00:59:19,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789956785] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:19,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779893364] [2022-01-29 00:59:19,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:19,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:19,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:19,503 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) [2022-01-29 00:59:19,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-01-29 00:59:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:19,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-29 00:59:19,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:19,756 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-29 00:59:19,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-29 00:59:19,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779893364] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:19,930 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:19,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-01-29 00:59:19,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608114963] [2022-01-29 00:59:19,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:19,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-29 00:59:19,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:19,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-29 00:59:19,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-01-29 00:59:19,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:19,932 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:19,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.631578947368421) internal successors, (126), 19 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:20,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:20,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-29 00:59:20,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:20,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:20,243 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 00:59:20,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:20,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1304944362, now seen corresponding path program 1 times [2022-01-29 00:59:20,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:20,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168140607] [2022-01-29 00:59:20,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:20,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 00:59:20,254 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-29 00:59:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 00:59:20,267 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-29 00:59:20,267 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-29 00:59:20,267 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-01-29 00:59:20,267 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-29 00:59:20,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-29 00:59:20,268 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-29 00:59:20,268 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (3/5) [2022-01-29 00:59:20,268 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-29 00:59:20,268 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-01-29 00:59:20,277 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,277 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,277 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,277 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,278 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,279 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,280 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,281 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,282 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,283 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,284 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,285 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,285 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,285 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,285 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,285 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,285 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,285 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,285 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,285 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,285 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,286 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,286 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,286 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,286 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,286 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,286 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,286 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,286 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,286 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,286 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,286 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,286 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,287 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,287 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,287 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,287 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,287 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,287 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,287 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,287 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,287 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,287 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,287 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,288 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,288 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,288 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,288 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 00:59:20,290 INFO L148 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2022-01-29 00:59:20,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 00:59:20,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:20,292 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 00:59:20,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (24)] Waiting until timeout for monitored process [2022-01-29 00:59:20,294 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread3of5ForFork1 ======== [2022-01-29 00:59:20,295 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 [2022-01-29 00:59:20,295 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-29 00:59:20,373 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:20,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:20,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1235245373, now seen corresponding path program 1 times [2022-01-29 00:59:20,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:20,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171411297] [2022-01-29 00:59:20,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:20,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:20,384 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:20,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:20,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171411297] [2022-01-29 00:59:20,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171411297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:20,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:20,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 00:59:20,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710850956] [2022-01-29 00:59:20,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:20,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 00:59:20,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:20,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 00:59:20,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 00:59:20,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,385 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:20,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 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) [2022-01-29 00:59:20,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-29 00:59:20,388 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:20,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:20,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1426917924, now seen corresponding path program 1 times [2022-01-29 00:59:20,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:20,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009942783] [2022-01-29 00:59:20,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:20,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:20,404 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:20,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:20,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009942783] [2022-01-29 00:59:20,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009942783] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:20,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:20,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 00:59:20,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037949222] [2022-01-29 00:59:20,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:20,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 00:59:20,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:20,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 00:59:20,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 00:59:20,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,405 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:20,405 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) [2022-01-29 00:59:20,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:20,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-29 00:59:20,466 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:20,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:20,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1018841525, now seen corresponding path program 1 times [2022-01-29 00:59:20,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:20,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334685636] [2022-01-29 00:59:20,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:20,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:20,489 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:20,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:20,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334685636] [2022-01-29 00:59:20,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334685636] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:20,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023377117] [2022-01-29 00:59:20,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:20,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:20,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:20,491 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) [2022-01-29 00:59:20,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-01-29 00:59:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:20,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-29 00:59:20,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:20,671 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:20,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:20,782 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:20,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023377117] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:20,782 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:20,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-29 00:59:20,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423169344] [2022-01-29 00:59:20,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:20,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-29 00:59:20,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:20,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-29 00:59:20,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-29 00:59:20,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,783 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:20,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:20,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:20,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:20,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:21,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-01-29 00:59:21,133 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:21,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:21,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2033703412, now seen corresponding path program 1 times [2022-01-29 00:59:21,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:21,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570369195] [2022-01-29 00:59:21,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:21,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:21,163 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-01-29 00:59:21,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:21,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570369195] [2022-01-29 00:59:21,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570369195] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:21,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581890070] [2022-01-29 00:59:21,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:21,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:21,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:21,165 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) [2022-01-29 00:59:21,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-01-29 00:59:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:21,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-29 00:59:21,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:21,426 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:21,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-29 00:59:21,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581890070] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:21,604 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:21,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-01-29 00:59:21,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580205802] [2022-01-29 00:59:21,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:21,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-29 00:59:21,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:21,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-29 00:59:21,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-01-29 00:59:21,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:21,605 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:21,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.210526315789474) internal successors, (175), 19 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:21,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:21,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:21,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:21,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:33,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:33,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:33,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:33,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-29 00:59:33,943 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-29 00:59:33,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:34,146 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,SelfDestructingSolverStorable38 [2022-01-29 00:59:34,300 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-29 00:59:34,300 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread3of5ForFork1 was SAFE (1/6) [2022-01-29 00:59:34,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 00:59:34,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:34,323 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 00:59:34,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (27)] Waiting until timeout for monitored process [2022-01-29 00:59:34,330 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread4of5ForFork1 ======== [2022-01-29 00:59:34,330 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 [2022-01-29 00:59:34,330 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-29 00:59:34,397 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:34,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:34,398 INFO L85 PathProgramCache]: Analyzing trace with hash -240992089, now seen corresponding path program 1 times [2022-01-29 00:59:34,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:34,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989886088] [2022-01-29 00:59:34,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:34,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:34,420 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:34,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:34,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989886088] [2022-01-29 00:59:34,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989886088] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:34,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:34,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 00:59:34,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198772044] [2022-01-29 00:59:34,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:34,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 00:59:34,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:34,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 00:59:34,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 00:59:34,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:34,422 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:34,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:34,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:34,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:34,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-29 00:59:34,426 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:34,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:34,426 INFO L85 PathProgramCache]: Analyzing trace with hash 528177926, now seen corresponding path program 1 times [2022-01-29 00:59:34,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:34,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451052672] [2022-01-29 00:59:34,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:34,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:34,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:34,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451052672] [2022-01-29 00:59:34,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451052672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:34,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:34,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 00:59:34,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820873390] [2022-01-29 00:59:34,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:34,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 00:59:34,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:34,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 00:59:34,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 00:59:34,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:34,449 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:34,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:34,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:34,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:34,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:34,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:34,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-29 00:59:34,488 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:34,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:34,488 INFO L85 PathProgramCache]: Analyzing trace with hash -680362209, now seen corresponding path program 1 times [2022-01-29 00:59:34,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:34,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591623341] [2022-01-29 00:59:34,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:34,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:34,512 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:34,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:34,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591623341] [2022-01-29 00:59:34,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591623341] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:34,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068732811] [2022-01-29 00:59:34,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:34,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:34,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:34,514 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) [2022-01-29 00:59:34,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-01-29 00:59:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:34,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-29 00:59:34,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:34,702 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:34,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:34,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068732811] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:34,809 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:34,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-29 00:59:34,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14143184] [2022-01-29 00:59:34,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:34,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-29 00:59:34,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:34,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-29 00:59:34,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-29 00:59:34,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:34,811 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:34,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:34,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:34,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:34,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:34,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:34,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:34,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:34,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:35,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:35,123 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:35,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:35,123 INFO L85 PathProgramCache]: Analyzing trace with hash 530609974, now seen corresponding path program 1 times [2022-01-29 00:59:35,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:35,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868231246] [2022-01-29 00:59:35,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:35,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:35,166 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-01-29 00:59:35,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:35,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868231246] [2022-01-29 00:59:35,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868231246] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:35,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221811731] [2022-01-29 00:59:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:35,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:35,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:35,168 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) [2022-01-29 00:59:35,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-01-29 00:59:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:35,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-29 00:59:35,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:35,444 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:35,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:35,645 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-29 00:59:35,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221811731] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:35,645 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:35,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-01-29 00:59:35,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173224370] [2022-01-29 00:59:35,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:35,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-29 00:59:35,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:35,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-29 00:59:35,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-01-29 00:59:35,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:35,647 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:35,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.473684210526315) internal successors, (180), 19 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:35,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:35,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:35,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:35,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:47,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:47,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:47,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:47,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-29 00:59:47,514 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-29 00:59:47,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:47,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:47,719 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-29 00:59:47,719 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread4of5ForFork1 was SAFE (2/6) [2022-01-29 00:59:47,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 00:59:47,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:47,721 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 00:59:47,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (30)] Waiting until timeout for monitored process [2022-01-29 00:59:47,726 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of5ForFork1 ======== [2022-01-29 00:59:47,726 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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 [2022-01-29 00:59:47,726 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-29 00:59:47,850 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:47,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:47,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1279268902, now seen corresponding path program 1 times [2022-01-29 00:59:47,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:47,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558301903] [2022-01-29 00:59:47,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:47,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:47,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:47,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:47,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558301903] [2022-01-29 00:59:47,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558301903] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:47,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:47,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 00:59:47,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641854633] [2022-01-29 00:59:47,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:47,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 00:59:47,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:47,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 00:59:47,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 00:59:47,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:47,876 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:47,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:47,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:47,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:47,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-29 00:59:47,878 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:47,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:47,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1082755397, now seen corresponding path program 1 times [2022-01-29 00:59:47,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:47,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486745660] [2022-01-29 00:59:47,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:47,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:47,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:47,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:47,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486745660] [2022-01-29 00:59:47,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486745660] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:47,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:47,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 00:59:47,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491416514] [2022-01-29 00:59:47,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:47,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 00:59:47,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:47,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 00:59:47,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 00:59:47,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:47,890 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:47,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:47,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:47,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:48,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:48,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:48,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-29 00:59:48,002 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:48,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:48,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1387064478, now seen corresponding path program 1 times [2022-01-29 00:59:48,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:48,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229724830] [2022-01-29 00:59:48,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:48,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:48,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:48,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229724830] [2022-01-29 00:59:48,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229724830] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 00:59:48,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69231984] [2022-01-29 00:59:48,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:48,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 00:59:48,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 00:59:48,023 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) [2022-01-29 00:59:48,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-01-29 00:59:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:48,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-29 00:59:48,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 00:59:48,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:48,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 00:59:48,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 00:59:48,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69231984] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 00:59:48,239 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 00:59:48,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-29 00:59:48,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225019037] [2022-01-29 00:59:48,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 00:59:48,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-29 00:59:48,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:48,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-29 00:59:48,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-29 00:59:48,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:48,240 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:48,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:48,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:48,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:48,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:48,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:48,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:48,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:48,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-01-29 00:59:48,626 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,SelfDestructingSolverStorable45 [2022-01-29 00:59:48,627 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-29 00:59:48,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 00:59:48,627 INFO L85 PathProgramCache]: Analyzing trace with hash -942153355, now seen corresponding path program 1 times [2022-01-29 00:59:48,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 00:59:48,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121326507] [2022-01-29 00:59:48,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 00:59:48,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 00:59:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 00:59:48,658 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-01-29 00:59:48,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 00:59:48,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121326507] [2022-01-29 00:59:48,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121326507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 00:59:48,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 00:59:48,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-29 00:59:48,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324310223] [2022-01-29 00:59:48,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 00:59:48,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-29 00:59:48,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 00:59:48,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-29 00:59:48,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-29 00:59:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:48,660 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 00:59:48,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 00:59:48,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 00:59:48,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 00:59:48,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-01-29 00:59:48,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.