/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-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_safe-11.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a
[2022-02-19 12:09:31,893 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-19 12:09:31,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-19 12:09:31,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-19 12:09:31,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-19 12:09:31,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-19 12:09:31,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-19 12:09:31,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-19 12:09:31,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-19 12:09:31,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-19 12:09:31,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-19 12:09:31,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-19 12:09:31,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-19 12:09:31,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-19 12:09:31,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-19 12:09:31,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-19 12:09:31,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-19 12:09:31,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-19 12:09:31,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-19 12:09:31,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-19 12:09:31,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-19 12:09:31,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-19 12:09:31,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-19 12:09:31,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-19 12:09:31,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-19 12:09:31,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-19 12:09:31,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-19 12:09:31,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-02-19 12:09:31,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-02-19 12:09:31,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-19 12:09:31,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-19 12:09:31,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-19 12:09:31,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2022-02-19 12:09:31,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-19 12:09:31,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-19 12:09:31,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-02-19 12:09:31,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-19 12:09:31,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-02-19 12:09:31,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-02-19 12:09:31,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-19 12:09:32,001 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-NoForkJoinOpt.epf
[2022-02-19 12:09:32,031 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-19 12:09:32,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-19 12:09:32,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-19 12:09:32,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-19 12:09:32,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-19 12:09:32,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-19 12:09:32,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-19 12:09:32,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-19 12:09:32,033 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-19 12:09:32,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-19 12:09:32,033 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-19 12:09:32,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-19 12:09:32,033 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-19 12:09:32,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-19 12:09:32,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-19 12:09:32,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-19 12:09:32,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-19 12:09:32,034 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-19 12:09:32,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-19 12:09:32,034 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-19 12:09:32,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-19 12:09:32,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-19 12:09:32,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-19 12:09:32,038 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-19 12:09:32,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-19 12:09:32,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-19 12:09:32,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-19 12:09:32,038 INFO L138 SettingsManager]: * Construct finite automaton lazily=true
[2022-02-19 12:09:32,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-19 12:09:32,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-19 12:09:32,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-19 12:09:32,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-19 12:09:32,039 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-19 12:09:32,040 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-02-19 12:09:32,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-19 12:09:32,040 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS
[2022-02-19 12:09:32,041 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false
[2022-02-19 12:09:32,041 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-19 12:09:32,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-19 12:09:32,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-19 12:09:32,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-19 12:09:32,273 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-19 12:09:32,279 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-19 12:09:32,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_safe-11.i
[2022-02-19 12:09:32,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d66453b2/57188a01d7da4d939c20de8db5fe7633/FLAG99e835090
[2022-02-19 12:09:32,856 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-19 12:09:32,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-11.i
[2022-02-19 12:09:32,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d66453b2/57188a01d7da4d939c20de8db5fe7633/FLAG99e835090
[2022-02-19 12:09:33,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d66453b2/57188a01d7da4d939c20de8db5fe7633
[2022-02-19 12:09:33,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-19 12:09:33,354 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-19 12:09:33,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-19 12:09:33,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-19 12:09:33,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-19 12:09:33,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 12:09:33" (1/1) ...
[2022-02-19 12:09:33,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45681859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33, skipping insertion in model container
[2022-02-19 12:09:33,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 12:09:33" (1/1) ...
[2022-02-19 12:09:33,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-19 12:09:33,401 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-19 12:09:33,718 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_safe-11.i[30815,30828]
[2022-02-19 12:09:33,725 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-19 12:09:33,732 INFO L203 MainTranslator]: Completed pre-run
[2022-02-19 12:09:33,778 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_safe-11.i[30815,30828]
[2022-02-19 12:09:33,783 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-19 12:09:33,815 INFO L208 MainTranslator]: Completed translation
[2022-02-19 12:09:33,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33 WrapperNode
[2022-02-19 12:09:33,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-19 12:09:33,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-19 12:09:33,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-19 12:09:33,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-19 12:09:33,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33" (1/1) ...
[2022-02-19 12:09:33,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33" (1/1) ...
[2022-02-19 12:09:33,881 INFO L137 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71
[2022-02-19 12:09:33,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-19 12:09:33,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-19 12:09:33,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-19 12:09:33,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-19 12:09:33,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33" (1/1) ...
[2022-02-19 12:09:33,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33" (1/1) ...
[2022-02-19 12:09:33,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33" (1/1) ...
[2022-02-19 12:09:33,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33" (1/1) ...
[2022-02-19 12:09:33,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33" (1/1) ...
[2022-02-19 12:09:33,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33" (1/1) ...
[2022-02-19 12:09:33,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33" (1/1) ...
[2022-02-19 12:09:33,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-19 12:09:33,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-19 12:09:33,910 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-19 12:09:33,910 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-19 12:09:33,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33" (1/1) ...
[2022-02-19 12:09:33,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-19 12:09:33,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 12:09:33,943 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 12:09:33,951 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 12:09:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure t1
[2022-02-19 12:09:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure t1
[2022-02-19 12:09:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure t2
[2022-02-19 12:09:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure t2
[2022-02-19 12:09:33,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-19 12:09:33,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-02-19 12:09:33,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-19 12:09:33,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-19 12:09:33,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-19 12:09:33,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-19 12:09:33,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-02-19 12:09:33,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-19 12:09:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-19 12:09:33,985 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 12:09:34,104 INFO L234 CfgBuilder]: Building ICFG
[2022-02-19 12:09:34,105 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-19 12:09:34,261 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-19 12:09:34,267 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-19 12:09:34,267 INFO L299 CfgBuilder]: Removed 3 assume(true) statements.
[2022-02-19 12:09:34,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 12:09:34 BoogieIcfgContainer
[2022-02-19 12:09:34,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-19 12:09:34,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-19 12:09:34,271 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-19 12:09:34,273 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-19 12:09:34,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 12:09:33" (1/3) ...
[2022-02-19 12:09:34,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b7ca30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 12:09:34, skipping insertion in model container
[2022-02-19 12:09:34,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:09:33" (2/3) ...
[2022-02-19 12:09:34,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b7ca30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 12:09:34, skipping insertion in model container
[2022-02-19 12:09:34,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 12:09:34" (3/3) ...
[2022-02-19 12:09:34,275 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_safe-11.i
[2022-02-19 12:09:34,279 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-19 12:09:34,279 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-19 12:09:34,280 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-19 12:09:34,280 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-19 12:09:34,306 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,307 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,307 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,307 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,307 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,308 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,308 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,308 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,309 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,309 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,309 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,309 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,310 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,310 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,310 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,310 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,311 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,311 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,311 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,311 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,312 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,312 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,312 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,312 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,312 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,312 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,313 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,313 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,313 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,313 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,314 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,314 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,314 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,314 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,315 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,315 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,318 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,318 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,318 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,318 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,318 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,320 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,320 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,321 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,321 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,321 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-19 12:09:34,321 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-02-19 12:09:34,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-02-19 12:09:34,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 12:09:34,363 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 12:09:34,374 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 12:09:34,404 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-19 12:09:34,409 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=false, mMcrOverapproximateWrwc=true
[2022-02-19 12:09:34,409 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2022-02-19 12:09:34,466 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 91 transitions and produced 92 states.
[2022-02-19 12:09:34,468 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 12:09:34,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 12:09:34,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1927097680, now seen corresponding path program 1 times
[2022-02-19 12:09:34,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 12:09:34,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238892744]
[2022-02-19 12:09:34,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 12:09:34,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 12:09:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 12:09:34,754 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 12:09:34,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 12:09:34,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238892744]
[2022-02-19 12:09:34,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238892744] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-19 12:09:34,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-19 12:09:34,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-02-19 12:09:34,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812877734]
[2022-02-19 12:09:34,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-19 12:09:34,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-02-19 12:09:34,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 12:09:34,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-02-19 12:09:34,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-02-19 12:09:34,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:34,792 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 12:09:34,793 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 12:09:34,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:34,825 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 91 transitions and produced 92 states.
[2022-02-19 12:09:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:34,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-19 12:09:34,827 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 12:09:34,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 12:09:34,830 INFO L85 PathProgramCache]: Analyzing trace with hash 560415153, now seen corresponding path program 1 times
[2022-02-19 12:09:34,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 12:09:34,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309114472]
[2022-02-19 12:09:34,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 12:09:34,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 12:09:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 12:09:34,955 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 12:09:34,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 12:09:34,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309114472]
[2022-02-19 12:09:34,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309114472] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-19 12:09:34,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-19 12:09:34,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-19 12:09:34,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973437301]
[2022-02-19 12:09:34,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-19 12:09:34,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-19 12:09:34,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 12:09:34,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-19 12:09:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-19 12:09:34,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:34,961 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 12:09:34,961 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 12:09:34,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:34,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:35,021 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 114 transitions and produced 115 states.
[2022-02-19 12:09:35,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 12:09:35,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-19 12:09:35,022 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 12:09:35,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 12:09:35,023 INFO L85 PathProgramCache]: Analyzing trace with hash -951035470, now seen corresponding path program 1 times
[2022-02-19 12:09:35,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 12:09:35,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906817585]
[2022-02-19 12:09:35,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 12:09:35,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 12:09:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 12:09:35,157 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 12:09:35,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 12:09:35,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906817585]
[2022-02-19 12:09:35,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906817585] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 12:09:35,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821051824]
[2022-02-19 12:09:35,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 12:09:35,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 12:09:35,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 12:09:35,161 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 12:09:35,161 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 12:09:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 12:09:35,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-02-19 12:09:35,333 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 12:09:35,512 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 12:09:35,512 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 12:09:35,678 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 12:09:35,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821051824] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 12:09:35,679 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 12:09:35,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10
[2022-02-19 12:09:35,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920684427]
[2022-02-19 12:09:35,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 12:09:35,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2022-02-19 12:09:35,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 12:09:35,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2022-02-19 12:09:35,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2022-02-19 12:09:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:35,682 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 12:09:35,683 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 12:09:35,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:35,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-02-19 12:09:35,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:35,788 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 160 transitions and produced 161 states.
[2022-02-19 12:09:35,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:35,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 12:09:35,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-02-19 12:09:35,810 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 12:09:36,003 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 12:09:36,004 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 12:09:36,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 12:09:36,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1666707666, now seen corresponding path program 2 times
[2022-02-19 12:09:36,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 12:09:36,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691108295]
[2022-02-19 12:09:36,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 12:09:36,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 12:09:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 12:09:36,109 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 12:09:36,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 12:09:36,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691108295]
[2022-02-19 12:09:36,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691108295] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 12:09:36,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233151413]
[2022-02-19 12:09:36,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-19 12:09:36,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 12:09:36,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 12:09:36,111 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 12:09:36,137 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 12:09:36,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-19 12:09:36,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-19 12:09:36,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core
[2022-02-19 12:09:36,199 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 12:09:36,327 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 12:09:36,327 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 12:09:36,496 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 12:09:36,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233151413] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 12:09:36,496 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 12:09:36,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18
[2022-02-19 12:09:36,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048528598]
[2022-02-19 12:09:36,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 12:09:36,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2022-02-19 12:09:36,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 12:09:36,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2022-02-19 12:09:36,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306
[2022-02-19 12:09:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:36,499 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 12:09:36,499 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 12:09:36,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:36,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-02-19 12:09:36,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-02-19 12:09:36,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:36,675 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 252 transitions and produced 249 states.
[2022-02-19 12:09:36,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:36,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 12:09:36,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-02-19 12:09:36,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2022-02-19 12:09:36,703 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 12:09:36,890 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 12:09:36,890 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 12:09:36,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 12:09:36,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1283180782, now seen corresponding path program 3 times
[2022-02-19 12:09:36,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 12:09:36,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057926905]
[2022-02-19 12:09:36,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 12:09:36,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 12:09:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 12:09:37,097 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 12:09:37,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 12:09:37,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057926905]
[2022-02-19 12:09:37,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057926905] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 12:09:37,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109843136]
[2022-02-19 12:09:37,098 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-19 12:09:37,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 12:09:37,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 12:09:37,099 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 12:09:37,121 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 12:09:37,191 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s)
[2022-02-19 12:09:37,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-19 12:09:37,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core
[2022-02-19 12:09:37,196 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 12:09:37,386 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 12:09:37,386 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 12:09:37,781 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 12:09:37,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109843136] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 12:09:37,782 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 12:09:37,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34
[2022-02-19 12:09:37,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961692035]
[2022-02-19 12:09:37,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 12:09:37,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2022-02-19 12:09:37,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 12:09:37,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2022-02-19 12:09:37,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122
[2022-02-19 12:09:37,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:37,784 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 12:09:37,785 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 12:09:37,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:37,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-02-19 12:09:37,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-02-19 12:09:37,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states.
[2022-02-19 12:09:37,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:38,331 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 436 transitions and produced 418 states.
[2022-02-19 12:09:38,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 12:09:38,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 12:09:38,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-02-19 12:09:38,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2022-02-19 12:09:38,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states.
[2022-02-19 12:09:38,359 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 12:09:38,532 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 12:09:38,533 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 12:09:38,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 12:09:38,534 INFO L85 PathProgramCache]: Analyzing trace with hash 835265426, now seen corresponding path program 4 times
[2022-02-19 12:09:38,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 12:09:38,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178789425]
[2022-02-19 12:09:38,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 12:09:38,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 12:09:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 12:09:39,014 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 12:09:39,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 12:09:39,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178789425]
[2022-02-19 12:09:39,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178789425] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 12:09:39,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025133572]
[2022-02-19 12:09:39,014 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-19 12:09:39,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 12:09:39,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 12:09:39,016 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 12:09:39,016 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 12:09:39,115 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-19 12:09:39,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-19 12:09:39,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 50 conjunts are in the unsatisfiable core
[2022-02-19 12:09:39,135 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 12:09:42,077 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 12:09:42,077 INFO L328 TraceCheckSpWp]: Computing backward predicates...
Received shutdown request...
[2022-02-19 12:23:58,124 WARN L244 SmtUtils]: Removed 2 from assertion stack
[2022-02-19 12:23:58,124 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 12:23:58,126 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2022-02-19 12:23:58,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-02-19 12:23:58,169 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 12:23:58,169 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 12:23:58,327 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 12:23:58,327 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 5ms..
[2022-02-19 12:23:58,328 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining)
[2022-02-19 12:23:58,329 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining)
[2022-02-19 12:23:58,333 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1]
[2022-02-19 12:23:58,335 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-19 12:23:58,335 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-19 12:23:58,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 12:23:58 BasicIcfg
[2022-02-19 12:23:58,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-19 12:23:58,337 INFO L158 Benchmark]: Toolchain (without parser) took 864983.27ms. Allocated memory was 191.9MB in the beginning and 339.7MB in the end (delta: 147.8MB). Free memory was 136.5MB in the beginning and 167.7MB in the end (delta: -31.2MB). Peak memory consumption was 187.6MB. Max. memory is 8.0GB.
[2022-02-19 12:23:58,338 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 154.6MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-19 12:23:58,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.71ms. Allocated memory was 191.9MB in the beginning and 283.1MB in the end (delta: 91.2MB). Free memory was 136.2MB in the beginning and 244.8MB in the end (delta: -108.6MB). Peak memory consumption was 15.6MB. Max. memory is 8.0GB.
[2022-02-19 12:23:58,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.17ms. Allocated memory is still 283.1MB. Free memory was 244.3MB in the beginning and 242.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-19 12:23:58,340 INFO L158 Benchmark]: Boogie Preprocessor took 27.29ms. Allocated memory is still 283.1MB. Free memory was 242.8MB in the beginning and 241.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-19 12:23:58,340 INFO L158 Benchmark]: RCFGBuilder took 359.24ms. Allocated memory is still 283.1MB. Free memory was 241.2MB in the beginning and 228.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2022-02-19 12:23:58,341 INFO L158 Benchmark]: TraceAbstraction took 864066.54ms. Allocated memory was 283.1MB in the beginning and 339.7MB in the end (delta: 56.6MB). Free memory was 228.1MB in the beginning and 167.7MB in the end (delta: 60.4MB). Peak memory consumption was 188.7MB. Max. memory is 8.0GB.
[2022-02-19 12:23:58,342 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 191.9MB. Free memory is still 154.6MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 460.71ms. Allocated memory was 191.9MB in the beginning and 283.1MB in the end (delta: 91.2MB). Free memory was 136.2MB in the beginning and 244.8MB in the end (delta: -108.6MB). Peak memory consumption was 15.6MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 64.17ms. Allocated memory is still 283.1MB. Free memory was 244.3MB in the beginning and 242.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 27.29ms. Allocated memory is still 283.1MB. Free memory was 242.8MB in the beginning and 241.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 359.24ms. Allocated memory is still 283.1MB. Free memory was 241.2MB in the beginning and 228.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
* TraceAbstraction took 864066.54ms. Allocated memory was 283.1MB in the beginning and 339.7MB in the end (delta: 56.6MB). Free memory was 228.1MB in the beginning and 167.7MB in the end (delta: 60.4MB). Peak memory consumption was 188.7MB. 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 SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 5ms..
- 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 SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 5ms..
- 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 SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 5ms..
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 112 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 864.0s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 1.0s, 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, 1.7s 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