/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-MCRwithDepranks-Lazy-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_unsafe-11.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a
[2022-02-19 17:07:14,498 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-19 17:07:14,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-19 17:07:14,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-19 17:07:14,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-19 17:07:14,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-19 17:07:14,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-19 17:07:14,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-19 17:07:14,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-19 17:07:14,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-19 17:07:14,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-19 17:07:14,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-19 17:07:14,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-19 17:07:14,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-19 17:07:14,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-19 17:07:14,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-19 17:07:14,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-19 17:07:14,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-19 17:07:14,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-19 17:07:14,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-19 17:07:14,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-19 17:07:14,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-19 17:07:14,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-19 17:07:14,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-19 17:07:14,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-19 17:07:14,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-19 17:07:14,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-19 17:07:14,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-02-19 17:07:14,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-02-19 17:07:14,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-19 17:07:14,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-19 17:07:14,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-19 17:07:14,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-02-19 17:07:14,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-02-19 17:07:14,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-19 17:07:14,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-19 17:07:14,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-02-19 17:07:14,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-19 17:07:14,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-02-19 17:07:14,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-02-19 17:07:14,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-19 17:07:14,604 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-MCRwithDepranks-Lazy-wrwc.epf
[2022-02-19 17:07:14,621 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-19 17:07:14,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-19 17:07:14,622 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-19 17:07:14,622 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-19 17:07:14,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-19 17:07:14,623 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-19 17:07:14,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-19 17:07:14,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-19 17:07:14,623 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-19 17:07:14,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-19 17:07:14,623 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-19 17:07:14,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-19 17:07:14,624 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-19 17:07:14,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-19 17:07:14,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-19 17:07:14,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-19 17:07:14,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-19 17:07:14,624 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-19 17:07:14,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-19 17:07:14,624 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-19 17:07:14,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-19 17:07:14,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-19 17:07:14,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-19 17:07:14,624 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-19 17:07:14,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-19 17:07:14,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-19 17:07:14,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-19 17:07:14,625 INFO L138 SettingsManager]: * Construct finite automaton lazily=true
[2022-02-19 17:07:14,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-19 17:07:14,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-19 17:07:14,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-19 17:07:14,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-19 17:07:14,625 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-19 17:07:14,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-02-19 17:07:14,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-19 17:07:14,625 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS
[2022-02-19 17:07:14,626 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false
[2022-02-19 17:07:14,626 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-19 17:07:14,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-19 17:07:14,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-19 17:07:14,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-19 17:07:14,834 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-19 17:07:14,836 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-19 17:07:14,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_unsafe-11.i
[2022-02-19 17:07:14,883 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c625e48/3faaeb917fc846e6abe4432421443acd/FLAGb4e4d9fee
[2022-02-19 17:07:15,228 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-19 17:07:15,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-11.i
[2022-02-19 17:07:15,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c625e48/3faaeb917fc846e6abe4432421443acd/FLAGb4e4d9fee
[2022-02-19 17:07:15,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c625e48/3faaeb917fc846e6abe4432421443acd
[2022-02-19 17:07:15,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-19 17:07:15,609 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-19 17:07:15,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-19 17:07:15,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-19 17:07:15,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-19 17:07:15,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:07:15" (1/1) ...
[2022-02-19 17:07:15,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb14efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15, skipping insertion in model container
[2022-02-19 17:07:15,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:07:15" (1/1) ...
[2022-02-19 17:07:15,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-19 17:07:15,657 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-19 17:07:15,893 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/fib_unsafe-11.i[30813,30826]
[2022-02-19 17:07:15,895 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-19 17:07:15,901 INFO L203 MainTranslator]: Completed pre-run
[2022-02-19 17:07:15,931 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/fib_unsafe-11.i[30813,30826]
[2022-02-19 17:07:15,932 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-19 17:07:15,956 INFO L208 MainTranslator]: Completed translation
[2022-02-19 17:07:15,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15 WrapperNode
[2022-02-19 17:07:15,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-19 17:07:15,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-19 17:07:15,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-19 17:07:15,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-19 17:07:15,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15" (1/1) ...
[2022-02-19 17:07:15,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15" (1/1) ...
[2022-02-19 17:07:16,003 INFO L137 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71
[2022-02-19 17:07:16,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-19 17:07:16,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-19 17:07:16,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-19 17:07:16,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-19 17:07:16,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15" (1/1) ...
[2022-02-19 17:07:16,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15" (1/1) ...
[2022-02-19 17:07:16,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15" (1/1) ...
[2022-02-19 17:07:16,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15" (1/1) ...
[2022-02-19 17:07:16,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15" (1/1) ...
[2022-02-19 17:07:16,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15" (1/1) ...
[2022-02-19 17:07:16,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15" (1/1) ...
[2022-02-19 17:07:16,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-19 17:07:16,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-19 17:07:16,025 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-19 17:07:16,026 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-19 17:07:16,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15" (1/1) ...
[2022-02-19 17:07:16,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-19 17:07:16,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 17:07:16,052 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)
[2022-02-19 17:07:16,075 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
[2022-02-19 17:07:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure t1
[2022-02-19 17:07:16,085 INFO L138 BoogieDeclarations]: Found implementation of procedure t1
[2022-02-19 17:07:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure t2
[2022-02-19 17:07:16,085 INFO L138 BoogieDeclarations]: Found implementation of procedure t2
[2022-02-19 17:07:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-19 17:07:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-02-19 17:07:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-19 17:07:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-19 17:07:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-19 17:07:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-19 17:07:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-02-19 17:07:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-19 17:07:16,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-19 17:07:16,087 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-19 17:07:16,158 INFO L234 CfgBuilder]: Building ICFG
[2022-02-19 17:07:16,159 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-19 17:07:16,315 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-19 17:07:16,319 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-19 17:07:16,320 INFO L299 CfgBuilder]: Removed 3 assume(true) statements.
[2022-02-19 17:07:16,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:07:16 BoogieIcfgContainer
[2022-02-19 17:07:16,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-19 17:07:16,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-19 17:07:16,322 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-19 17:07:16,324 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-19 17:07:16,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:07:15" (1/3) ...
[2022-02-19 17:07:16,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7099c58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:07:16, skipping insertion in model container
[2022-02-19 17:07:16,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:07:15" (2/3) ...
[2022-02-19 17:07:16,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7099c58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:07:16, skipping insertion in model container
[2022-02-19 17:07:16,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:07:16" (3/3) ...
[2022-02-19 17:07:16,326 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_unsafe-11.i
[2022-02-19 17:07:16,329 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-19 17:07:16,329 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-19 17:07:16,329 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-19 17:07:16,329 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-19 17:07:16,355 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,355 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,355 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,356 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,356 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,356 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,356 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,356 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,357 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,357 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,357 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,357 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,357 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,357 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,357 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,358 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,358 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,358 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,358 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,358 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,358 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,358 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,358 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,358 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,359 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,359 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,359 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,359 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,359 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,359 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,360 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,360 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,360 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,360 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,360 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,360 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,362 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,363 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,363 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,363 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,363 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,364 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,364 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,364 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,365 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,365 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 17:07:16,365 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-02-19 17:07:16,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-02-19 17:07:16,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 17:07:16,398 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)
[2022-02-19 17:07:16,399 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
[2022-02-19 17:07:16,416 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-19 17:07:16,421 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=false
[2022-02-19 17:07:16,421 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2022-02-19 17:07:16,475 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 91 transitions and produced 92 states.
[2022-02-19 17:07:16,477 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 17:07:16,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 17:07:16,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1927097680, now seen corresponding path program 1 times
[2022-02-19 17:07:16,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 17:07:16,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088697271]
[2022-02-19 17:07:16,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 17:07:16,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 17:07:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 17:07:16,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:16,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 17:07:16,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088697271]
[2022-02-19 17:07:16,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088697271] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-19 17:07:16,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-19 17:07:16,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-02-19 17:07:16,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404649448]
[2022-02-19 17:07:16,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-19 17:07:16,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-02-19 17:07:16,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 17:07:16,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-02-19 17:07:16,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-02-19 17:07:16,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:16,693 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 17:07:16,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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)
[2022-02-19 17:07:16,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:16,726 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 91 transitions and produced 92 states.
[2022-02-19 17:07:16,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:16,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-19 17:07:16,728 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 17:07:16,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 17:07:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash 560415153, now seen corresponding path program 1 times
[2022-02-19 17:07:16,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 17:07:16,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743064498]
[2022-02-19 17:07:16,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 17:07:16,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 17:07:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 17:07:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:16,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 17:07:16,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743064498]
[2022-02-19 17:07:16,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743064498] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-19 17:07:16,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-19 17:07:16,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-19 17:07:16,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678580486]
[2022-02-19 17:07:16,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-19 17:07:16,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-19 17:07:16,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 17:07:16,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-19 17:07:16,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-19 17:07:16,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:16,835 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 17:07:16,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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)
[2022-02-19 17:07:16,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:16,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:16,878 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 114 transitions and produced 115 states.
[2022-02-19 17:07:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 17:07:16,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-19 17:07:16,879 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 17:07:16,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 17:07:16,881 INFO L85 PathProgramCache]: Analyzing trace with hash -951035470, now seen corresponding path program 1 times
[2022-02-19 17:07:16,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 17:07:16,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353788095]
[2022-02-19 17:07:16,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 17:07:16,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 17:07:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 17:07:16,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:16,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 17:07:16,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353788095]
[2022-02-19 17:07:16,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353788095] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 17:07:16,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238896820]
[2022-02-19 17:07:16,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 17:07:16,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 17:07:16,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 17:07:16,956 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)
[2022-02-19 17:07:16,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-02-19 17:07:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 17:07:17,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-02-19 17:07:17,074 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 17:07:17,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:17,220 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 17:07:17,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:17,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238896820] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 17:07:17,339 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 17:07:17,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10
[2022-02-19 17:07:17,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334088199]
[2022-02-19 17:07:17,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 17:07:17,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2022-02-19 17:07:17,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 17:07:17,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2022-02-19 17:07:17,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2022-02-19 17:07:17,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:17,341 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 17:07:17,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 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)
[2022-02-19 17:07:17,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:17,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-02-19 17:07:17,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:17,597 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 160 transitions and produced 161 states.
[2022-02-19 17:07:17,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:17,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 17:07:17,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-02-19 17:07:17,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-02-19 17:07:17,823 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
[2022-02-19 17:07:17,824 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 17:07:17,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 17:07:17,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1666707666, now seen corresponding path program 2 times
[2022-02-19 17:07:17,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 17:07:17,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533333692]
[2022-02-19 17:07:17,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 17:07:17,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 17:07:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 17:07:17,928 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:17,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 17:07:17,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533333692]
[2022-02-19 17:07:17,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533333692] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 17:07:17,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552162515]
[2022-02-19 17:07:17,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-19 17:07:17,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 17:07:17,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 17:07:17,930 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)
[2022-02-19 17:07:17,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-02-19 17:07:17,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-19 17:07:17,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-19 17:07:17,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core
[2022-02-19 17:07:17,989 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 17:07:18,108 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:18,108 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 17:07:18,270 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:18,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552162515] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 17:07:18,271 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 17:07:18,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18
[2022-02-19 17:07:18,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258638264]
[2022-02-19 17:07:18,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 17:07:18,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2022-02-19 17:07:18,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 17:07:18,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2022-02-19 17:07:18,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306
[2022-02-19 17:07:18,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:18,274 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 17:07:18,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 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)
[2022-02-19 17:07:18,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:18,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-02-19 17:07:18,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-02-19 17:07:18,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:18,611 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 252 transitions and produced 249 states.
[2022-02-19 17:07:18,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:18,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 17:07:18,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-02-19 17:07:18,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2022-02-19 17:07:18,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-02-19 17:07:18,831 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
[2022-02-19 17:07:18,831 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 17:07:18,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 17:07:18,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1283180782, now seen corresponding path program 3 times
[2022-02-19 17:07:18,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 17:07:18,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964447497]
[2022-02-19 17:07:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 17:07:18,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 17:07:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 17:07:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:19,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 17:07:19,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964447497]
[2022-02-19 17:07:19,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964447497] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 17:07:19,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695754327]
[2022-02-19 17:07:19,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-19 17:07:19,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 17:07:19,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 17:07:19,019 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)
[2022-02-19 17:07:19,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-02-19 17:07:19,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s)
[2022-02-19 17:07:19,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-19 17:07:19,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core
[2022-02-19 17:07:19,115 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 17:07:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:19,253 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 17:07:19,569 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:19,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695754327] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 17:07:19,570 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 17:07:19,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34
[2022-02-19 17:07:19,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908990180]
[2022-02-19 17:07:19,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 17:07:19,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2022-02-19 17:07:19,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 17:07:19,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2022-02-19 17:07:19,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122
[2022-02-19 17:07:19,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:19,572 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 17:07:19,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 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)
[2022-02-19 17:07:19,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:19,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-02-19 17:07:19,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-02-19 17:07:19,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states.
[2022-02-19 17:07:19,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:20,371 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 436 transitions and produced 418 states.
[2022-02-19 17:07:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 17:07:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 17:07:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-02-19 17:07:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2022-02-19 17:07:20,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states.
[2022-02-19 17:07:20,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-02-19 17:07:20,573 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
[2022-02-19 17:07:20,574 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 17:07:20,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 17:07:20,574 INFO L85 PathProgramCache]: Analyzing trace with hash 835265426, now seen corresponding path program 4 times
[2022-02-19 17:07:20,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 17:07:20,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736258809]
[2022-02-19 17:07:20,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 17:07:20,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 17:07:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 17:07:20,960 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:20,961 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 17:07:20,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736258809]
[2022-02-19 17:07:20,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736258809] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 17:07:20,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933177554]
[2022-02-19 17:07:20,961 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-19 17:07:20,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 17:07:20,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 17:07:20,962 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)
[2022-02-19 17:07:20,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-02-19 17:07:21,047 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-19 17:07:21,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-19 17:07:21,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 50 conjunts are in the unsatisfiable core
[2022-02-19 17:07:21,062 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 17:07:23,351 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 572 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 17:07:23,352 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 17:15:01,260 WARN L228 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
Received shutdown request...
[2022-02-19 17:21:47,219 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2022-02-19 17:21:47,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2022-02-19 17:21:47,257 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2022-02-19 17:21:47,257 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2022-02-19 17:21:47,257 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2022-02-19 17:21:47,419 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
[2022-02-19 17:21:47,420 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination.
[2022-02-19 17:21:47,422 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining)
[2022-02-19 17:21:47,422 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining)
[2022-02-19 17:21:47,426 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1]
[2022-02-19 17:21:47,428 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-19 17:21:47,428 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-19 17:21:47,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:21:47 BasicIcfg
[2022-02-19 17:21:47,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-19 17:21:47,431 INFO L158 Benchmark]: Toolchain (without parser) took 871821.45ms. Allocated memory was 204.5MB in the beginning and 476.1MB in the end (delta: 271.6MB). Free memory was 153.2MB in the beginning and 199.4MB in the end (delta: -46.2MB). Peak memory consumption was 227.0MB. Max. memory is 8.0GB.
[2022-02-19 17:21:47,431 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 204.5MB. Free memory is still 171.1MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-19 17:21:47,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.30ms. Allocated memory is still 204.5MB. Free memory was 152.9MB in the beginning and 171.0MB in the end (delta: -18.0MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB.
[2022-02-19 17:21:47,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.60ms. Allocated memory is still 204.5MB. Free memory was 171.0MB in the beginning and 169.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-19 17:21:47,434 INFO L158 Benchmark]: Boogie Preprocessor took 20.72ms. Allocated memory is still 204.5MB. Free memory was 169.1MB in the beginning and 167.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-19 17:21:47,435 INFO L158 Benchmark]: RCFGBuilder took 295.86ms. Allocated memory is still 204.5MB. Free memory was 167.4MB in the beginning and 155.2MB in the end (delta: 12.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
[2022-02-19 17:21:47,435 INFO L158 Benchmark]: TraceAbstraction took 871108.12ms. Allocated memory was 204.5MB in the beginning and 476.1MB in the end (delta: 271.6MB). Free memory was 154.4MB in the beginning and 199.4MB in the end (delta: -45.0MB). Peak memory consumption was 227.9MB. Max. memory is 8.0GB.
[2022-02-19 17:21:47,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.10ms. Allocated memory is still 204.5MB. Free memory is still 171.1MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 345.30ms. Allocated memory is still 204.5MB. Free memory was 152.9MB in the beginning and 171.0MB in the end (delta: -18.0MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 45.60ms. Allocated memory is still 204.5MB. Free memory was 171.0MB in the beginning and 169.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 20.72ms. Allocated memory is still 204.5MB. Free memory was 169.1MB in the beginning and 167.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 295.86ms. Allocated memory is still 204.5MB. Free memory was 167.4MB in the beginning and 155.2MB in the end (delta: 12.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
* TraceAbstraction took 871108.12ms. Allocated memory was 204.5MB in the beginning and 476.1MB in the end (delta: 271.6MB). Free memory was 154.4MB in the beginning and 199.4MB in the end (delta: -45.0MB). Peak memory consumption was 227.9MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Independence relation benchmarks
ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- TimeoutResultAtElement [Line: 726]: Timeout (TraceAbstraction)
Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination.
- TimeoutResultAtElement [Line: 722]: Timeout (TraceAbstraction)
Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination.
- TimeoutResultAtElement [Line: 721]: Timeout (TraceAbstraction)
Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination.
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 112 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 871.0s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 1.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 1285 SizeOfPredicates, 22 NumberOfNonLiveVariables, 552 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 0/537 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown