/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 23:11:54,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 23:11:54,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 23:11:54,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 23:11:54,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 23:11:54,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 23:11:54,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 23:11:54,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 23:11:54,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 23:11:54,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 23:11:54,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 23:11:54,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 23:11:54,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 23:11:54,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 23:11:54,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 23:11:54,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 23:11:54,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 23:11:54,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 23:11:54,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 23:11:54,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 23:11:54,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 23:11:54,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 23:11:54,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 23:11:54,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 23:11:54,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-16 23:11:54,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-16 23:11:54,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-16 23:11:54,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-16 23:11:54,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-16 23:11:54,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-16 23:11:54,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-16 23:11:54,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-16 23:11:54,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-16 23:11:54,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 23:11:54,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 23:11:54,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 23:11:54,977 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-MCRwithoutDepranks-Lazy.epf [2022-02-16 23:11:54,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 23:11:54,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 23:11:54,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 23:11:54,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 23:11:54,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 23:11:54,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 23:11:54,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 23:11:54,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 23:11:54,991 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 23:11:54,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 23:11:54,992 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 23:11:54,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 23:11:54,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 23:11:54,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 23:11:54,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 23:11:54,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 23:11:54,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 23:11:54,992 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 23:11:54,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 23:11:54,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 23:11:54,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 23:11:54,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 23:11:54,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 23:11:54,993 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 23:11:54,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 23:11:54,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 23:11:54,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 23:11:54,993 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-16 23:11:54,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 23:11:54,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 23:11:54,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 23:11:54,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 23:11:54,994 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 23:11:54,994 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 23:11:54,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 23:11:54,994 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-16 23:11:54,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 23:11:55,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 23:11:55,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 23:11:55,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 23:11:55,142 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-16 23:11:55,143 INFO L275 PluginConnector]: CDTParser initialized [2022-02-16 23:11:55,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar.i [2022-02-16 23:11:55,188 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be0c4d0ff/a0a2f55ee69b4e579cb2a8ee49ea0e2e/FLAG34509acce [2022-02-16 23:11:55,564 INFO L306 CDTParser]: Found 1 translation units. [2022-02-16 23:11:55,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i [2022-02-16 23:11:55,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be0c4d0ff/a0a2f55ee69b4e579cb2a8ee49ea0e2e/FLAG34509acce [2022-02-16 23:11:55,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be0c4d0ff/a0a2f55ee69b4e579cb2a8ee49ea0e2e [2022-02-16 23:11:55,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 23:11:55,584 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-16 23:11:55,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-16 23:11:55,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-16 23:11:55,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-16 23:11:55,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 11:11:55" (1/1) ... [2022-02-16 23:11:55,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432a1bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55, skipping insertion in model container [2022-02-16 23:11:55,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 11:11:55" (1/1) ... [2022-02-16 23:11:55,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-16 23:11:55,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-16 23:11:55,786 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-16 23:11:55,869 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-divine/condvar.i[30458,30471] [2022-02-16 23:11:55,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 23:11:55,881 INFO L203 MainTranslator]: Completed pre-run [2022-02-16 23:11:55,889 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-16 23:11:55,915 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-divine/condvar.i[30458,30471] [2022-02-16 23:11:55,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 23:11:55,941 INFO L208 MainTranslator]: Completed translation [2022-02-16 23:11:55,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55 WrapperNode [2022-02-16 23:11:55,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-16 23:11:55,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 23:11:55,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 23:11:55,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 23:11:55,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55" (1/1) ... [2022-02-16 23:11:55,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55" (1/1) ... [2022-02-16 23:11:55,968 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-02-16 23:11:55,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 23:11:55,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 23:11:55,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 23:11:55,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 23:11:55,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55" (1/1) ... [2022-02-16 23:11:55,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55" (1/1) ... [2022-02-16 23:11:55,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55" (1/1) ... [2022-02-16 23:11:55,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55" (1/1) ... [2022-02-16 23:11:55,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55" (1/1) ... [2022-02-16 23:11:55,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55" (1/1) ... [2022-02-16 23:11:55,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55" (1/1) ... [2022-02-16 23:11:55,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 23:11:55,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 23:11:55,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 23:11:55,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 23:11:55,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55" (1/1) ... [2022-02-16 23:11:55,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 23:11:55,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 23:11:56,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-16 23:11:56,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-16 23:11:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-16 23:11:56,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-16 23:11:56,052 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-16 23:11:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-16 23:11:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-16 23:11:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-16 23:11:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-16 23:11:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-02-16 23:11:56,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-02-16 23:11:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 23:11:56,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 23:11:56,055 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 23:11:56,125 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 23:11:56,127 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 23:11:56,296 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 23:11:56,300 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 23:11:56,301 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-16 23:11:56,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 11:11:56 BoogieIcfgContainer [2022-02-16 23:11:56,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 23:11:56,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 23:11:56,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 23:11:56,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 23:11:56,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 11:11:55" (1/3) ... [2022-02-16 23:11:56,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfe3be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 11:11:56, skipping insertion in model container [2022-02-16 23:11:56,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 11:11:55" (2/3) ... [2022-02-16 23:11:56,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfe3be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 11:11:56, skipping insertion in model container [2022-02-16 23:11:56,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 11:11:56" (3/3) ... [2022-02-16 23:11:56,309 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar.i [2022-02-16 23:11:56,313 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 23:11:56,313 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 23:11:56,313 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 23:11:56,313 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 23:11:56,355 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,355 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,355 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,355 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,356 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,356 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,356 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,356 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,356 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,356 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,357 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,357 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,357 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,358 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,358 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,358 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,358 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,358 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,358 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,358 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,360 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,360 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,361 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,361 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,361 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,361 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 23:11:56,363 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-16 23:11:56,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 23:11:56,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 23:11:56,410 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) [2022-02-16 23:11:56,411 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 [2022-02-16 23:11:56,430 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 23:11:56,450 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-16 23:11:56,450 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-16 23:11:56,580 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 64 transitions and produced 65 states. [2022-02-16 23:11:56,582 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 23:11:56,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 23:11:56,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1874158953, now seen corresponding path program 1 times [2022-02-16 23:11:56,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 23:11:56,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478823485] [2022-02-16 23:11:56,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 23:11:56,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 23:11:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 23:11:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:11:56,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 23:11:56,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478823485] [2022-02-16 23:11:56,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478823485] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 23:11:56,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 23:11:56,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 23:11:56,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221462971] [2022-02-16 23:11:56,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 23:11:56,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-16 23:11:56,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 23:11:56,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-16 23:11:56,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-16 23:11:56,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:56,756 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 23:11:56,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 23:11:56,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:56,790 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 64 transitions and produced 65 states. [2022-02-16 23:11:56,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:56,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 23:11:56,792 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 23:11:56,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 23:11:56,794 INFO L85 PathProgramCache]: Analyzing trace with hash 613354841, now seen corresponding path program 1 times [2022-02-16 23:11:56,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 23:11:56,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645762689] [2022-02-16 23:11:56,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 23:11:56,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 23:11:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 23:11:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:11:56,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 23:11:56,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645762689] [2022-02-16 23:11:56,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645762689] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 23:11:56,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 23:11:56,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 23:11:56,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200770126] [2022-02-16 23:11:56,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 23:11:56,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 23:11:56,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 23:11:56,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 23:11:56,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 23:11:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:56,864 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 23:11:56,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 23:11:56,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:56,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:56,903 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 76 transitions and produced 77 states. [2022-02-16 23:11:56,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:56,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 23:11:56,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 23:11:56,904 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 23:11:56,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 23:11:56,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1880556507, now seen corresponding path program 1 times [2022-02-16 23:11:56,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 23:11:56,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575421874] [2022-02-16 23:11:56,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 23:11:56,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 23:11:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 23:11:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:11:57,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 23:11:57,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575421874] [2022-02-16 23:11:57,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575421874] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 23:11:57,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648073625] [2022-02-16 23:11:57,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 23:11:57,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 23:11:57,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 23:11:57,004 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 23:11:57,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 23:11:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 23:11:57,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-16 23:11:57,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 23:11:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:11:57,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 23:11:57,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:11:57,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648073625] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 23:11:57,275 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 23:11:57,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-16 23:11:57,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240001609] [2022-02-16 23:11:57,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 23:11:57,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-16 23:11:57,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 23:11:57,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-16 23:11:57,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-16 23:11:57,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:57,279 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 23:11:57,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 23:11:57,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:57,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 23:11:57,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:57,446 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 100 transitions and produced 99 states. [2022-02-16 23:11:57,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:57,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 23:11:57,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 23:11:57,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-16 23:11:57,664 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 [2022-02-16 23:11:57,665 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 23:11:57,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 23:11:57,665 INFO L85 PathProgramCache]: Analyzing trace with hash 362678939, now seen corresponding path program 2 times [2022-02-16 23:11:57,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 23:11:57,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405344065] [2022-02-16 23:11:57,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 23:11:57,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 23:11:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 23:11:57,774 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:11:57,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 23:11:57,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405344065] [2022-02-16 23:11:57,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405344065] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 23:11:57,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704055908] [2022-02-16 23:11:57,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 23:11:57,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 23:11:57,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 23:11:57,778 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 23:11:57,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-16 23:11:57,855 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 23:11:57,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 23:11:57,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-16 23:11:57,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 23:11:57,952 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:11:57,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 23:11:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:11:58,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704055908] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 23:11:58,061 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 23:11:58,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-02-16 23:11:58,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597754362] [2022-02-16 23:11:58,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 23:11:58,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-16 23:11:58,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 23:11:58,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-16 23:11:58,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-02-16 23:11:58,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:58,063 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 23:11:58,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.055555555555555) internal successors, (91), 18 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 23:11:58,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:58,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 23:11:58,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 23:11:58,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:58,261 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 148 transitions and produced 140 states. [2022-02-16 23:11:58,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:58,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 23:11:58,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 23:11:58,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-16 23:11:58,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-16 23:11:58,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 23:11:58,466 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 23:11:58,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 23:11:58,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1788594203, now seen corresponding path program 3 times [2022-02-16 23:11:58,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 23:11:58,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348648507] [2022-02-16 23:11:58,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 23:11:58,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 23:11:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 23:11:58,604 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:11:58,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 23:11:58,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348648507] [2022-02-16 23:11:58,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348648507] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 23:11:58,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273682070] [2022-02-16 23:11:58,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 23:11:58,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 23:11:58,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 23:11:58,606 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 23:11:58,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 23:11:58,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-16 23:11:58,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 23:11:58,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-16 23:11:58,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 23:11:58,852 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-02-16 23:11:58,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-16 23:11:58,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273682070] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 23:11:58,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-16 23:11:58,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2022-02-16 23:11:58,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728440400] [2022-02-16 23:11:58,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 23:11:58,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 23:11:58,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 23:11:58,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 23:11:58,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-02-16 23:11:58,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:58,855 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 23:11:58,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 23:11:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:11:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 23:11:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 23:11:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-16 23:11:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:12:53,473 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11027 transitions and produced 10105 states. [2022-02-16 23:12:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:12:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 23:12:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 23:12:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-16 23:12:53,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-16 23:12:53,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-16 23:12:53,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 23:12:53,682 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 23:12:53,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 23:12:53,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1384859913, now seen corresponding path program 4 times [2022-02-16 23:12:53,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 23:12:53,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741159647] [2022-02-16 23:12:53,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 23:12:53,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 23:12:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 23:12:54,093 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:12:54,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 23:12:54,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741159647] [2022-02-16 23:12:54,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741159647] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 23:12:54,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757757826] [2022-02-16 23:12:54,094 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-16 23:12:54,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 23:12:54,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 23:12:54,099 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 23:12:54,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-16 23:12:54,203 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-16 23:12:54,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 23:12:54,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 34 conjunts are in the unsatisfiable core [2022-02-16 23:12:54,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 23:12:54,398 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:12:54,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 23:12:55,233 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:12:55,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757757826] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 23:12:55,233 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 23:12:55,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 70 [2022-02-16 23:12:55,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174400282] [2022-02-16 23:12:55,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 23:12:55,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-16 23:12:55,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 23:12:55,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-16 23:12:55,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1260, Invalid=3570, Unknown=0, NotChecked=0, Total=4830 [2022-02-16 23:12:55,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:12:55,246 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 23:12:55,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 3.2285714285714286) internal successors, (226), 70 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 23:12:55,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:12:55,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 23:12:55,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 23:12:55,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-16 23:12:55,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-16 23:12:55,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:12:57,417 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 603 transitions and produced 540 states. [2022-02-16 23:12:57,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:12:57,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 23:12:57,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 23:12:57,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-16 23:12:57,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-16 23:12:57,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-02-16 23:12:57,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-16 23:12:57,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 23:12:57,622 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 23:12:57,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 23:12:57,624 INFO L85 PathProgramCache]: Analyzing trace with hash 542320439, now seen corresponding path program 5 times [2022-02-16 23:12:57,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 23:12:57,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706588505] [2022-02-16 23:12:57,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 23:12:57,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 23:12:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 23:12:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4347 backedges. 0 proven. 4347 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:12:59,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 23:12:59,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706588505] [2022-02-16 23:12:59,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706588505] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 23:12:59,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192842799] [2022-02-16 23:12:59,271 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-16 23:12:59,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 23:12:59,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 23:12:59,274 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) [2022-02-16 23:12:59,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-16 23:12:59,385 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 43 check-sat command(s) [2022-02-16 23:12:59,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 23:12:59,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 86 conjunts are in the unsatisfiable core [2022-02-16 23:12:59,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 23:12:59,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4347 backedges. 0 proven. 4347 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:12:59,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 23:13:00,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4347 backedges. 0 proven. 4347 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:13:00,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192842799] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 23:13:00,074 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 23:13:00,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87, 87] total 89 [2022-02-16 23:13:00,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463807813] [2022-02-16 23:13:00,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 23:13:00,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-02-16 23:13:00,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 23:13:00,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-02-16 23:13:00,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2024, Invalid=5808, Unknown=0, NotChecked=0, Total=7832 [2022-02-16 23:13:00,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:13:00,093 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 23:13:00,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 3.0224719101123596) internal successors, (269), 89 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 23:13:00,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:13:00,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 23:13:00,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 23:13:00,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-16 23:13:00,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-16 23:13:00,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-02-16 23:13:00,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:13:03,411 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 723 transitions and produced 641 states. [2022-02-16 23:13:03,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:13:03,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 23:13:03,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 23:13:03,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-16 23:13:03,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-16 23:13:03,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-02-16 23:13:03,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 23:13:03,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-16 23:13:03,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 23:13:03,616 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 23:13:03,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 23:13:03,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1626946935, now seen corresponding path program 6 times [2022-02-16 23:13:03,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 23:13:03,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316815918] [2022-02-16 23:13:03,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 23:13:03,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 23:13:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 23:13:05,719 INFO L134 CoverageAnalysis]: Checked inductivity of 6682 backedges. 6481 proven. 201 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 23:13:05,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 23:13:05,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316815918] [2022-02-16 23:13:05,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316815918] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 23:13:05,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893960002] [2022-02-16 23:13:05,720 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-16 23:13:05,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 23:13:05,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 23:13:05,721 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 23:13:05,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-16 23:13:05,796 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-02-16 23:13:05,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 23:13:05,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-16 23:13:05,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 23:13:06,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6682 backedges. 784 proven. 0 refuted. 0 times theorem prover too weak. 5898 trivial. 0 not checked. [2022-02-16 23:13:06,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-16 23:13:06,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893960002] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 23:13:06,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-16 23:13:06,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [105] total 106 [2022-02-16 23:13:06,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274135010] [2022-02-16 23:13:06,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 23:13:06,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 23:13:06,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 23:13:06,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 23:13:06,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2709, Invalid=8421, Unknown=0, NotChecked=0, Total=11130 [2022-02-16 23:13:06,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:13:06,098 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 23:13:06,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 23:13:06,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 23:13:06,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 23:13:06,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 23:13:06,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-16 23:13:06,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-16 23:13:06,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-02-16 23:13:06,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 23:13:06,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.