/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a
[2022-02-18 21:52:35,979 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-18 21:52:36,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-18 21:52:36,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-18 21:52:36,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-18 21:52:36,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-18 21:52:36,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-18 21:52:36,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-18 21:52:36,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-18 21:52:36,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-18 21:52:36,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-18 21:52:36,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-18 21:52:36,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-18 21:52:36,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-18 21:52:36,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-18 21:52:36,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-18 21:52:36,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-18 21:52:36,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-18 21:52:36,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-18 21:52:36,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-18 21:52:36,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-18 21:52:36,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-18 21:52:36,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-18 21:52:36,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-18 21:52:36,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-18 21:52:36,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-18 21:52:36,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-18 21:52:36,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-02-18 21:52:36,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-02-18 21:52:36,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-18 21:52:36,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-18 21:52:36,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-18 21:52:36,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-02-18 21:52:36,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-02-18 21:52:36,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-18 21:52:36,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-18 21:52:36,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-02-18 21:52:36,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-18 21:52:36,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-02-18 21:52:36,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-02-18 21:52:36,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-18 21:52:36,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf
[2022-02-18 21:52:36,108 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-18 21:52:36,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-18 21:52:36,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-18 21:52:36,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-18 21:52:36,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-18 21:52:36,109 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-18 21:52:36,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-18 21:52:36,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-18 21:52:36,109 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-18 21:52:36,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-18 21:52:36,110 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-18 21:52:36,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-18 21:52:36,110 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-18 21:52:36,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-18 21:52:36,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-18 21:52:36,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-18 21:52:36,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-18 21:52:36,111 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-18 21:52:36,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-18 21:52:36,111 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-18 21:52:36,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-18 21:52:36,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-18 21:52:36,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-18 21:52:36,111 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-18 21:52:36,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-18 21:52:36,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-18 21:52:36,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-18 21:52:36,112 INFO L138 SettingsManager]: * Construct finite automaton lazily=true
[2022-02-18 21:52:36,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-18 21:52:36,112 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-18 21:52:36,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-18 21:52:36,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-18 21:52:36,112 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-18 21:52:36,112 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-02-18 21:52:36,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-18 21:52:36,112 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES
[2022-02-18 21:52:36,112 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-18 21:52:36,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-18 21:52:36,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-18 21:52:36,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-18 21:52:36,303 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-18 21:52:36,304 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-18 21:52:36,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c
[2022-02-18 21:52:36,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3c077d1d/cedd41c49d5b4a8fb4ff613ea932b3c7/FLAGb6124a80f
[2022-02-18 21:52:36,709 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-18 21:52:36,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c
[2022-02-18 21:52:36,709 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available.
[2022-02-18 21:52:36,709 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available.
[2022-02-18 21:52:36,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3c077d1d/cedd41c49d5b4a8fb4ff613ea932b3c7/FLAGb6124a80f
[2022-02-18 21:52:36,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3c077d1d/cedd41c49d5b4a8fb4ff613ea932b3c7
[2022-02-18 21:52:36,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-18 21:52:36,739 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-18 21:52:36,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-18 21:52:36,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-18 21:52:36,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-18 21:52:36,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:52:36" (1/1) ...
[2022-02-18 21:52:36,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db28d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36, skipping insertion in model container
[2022-02-18 21:52:36,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:52:36" (1/1) ...
[2022-02-18 21:52:36,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-18 21:52:36,754 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-18 21:52:36,877 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-18 21:52:36,882 INFO L203 MainTranslator]: Completed pre-run
[2022-02-18 21:52:36,889 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-18 21:52:36,898 INFO L208 MainTranslator]: Completed translation
[2022-02-18 21:52:36,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36 WrapperNode
[2022-02-18 21:52:36,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-18 21:52:36,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-18 21:52:36,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-18 21:52:36,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-18 21:52:36,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36" (1/1) ...
[2022-02-18 21:52:36,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36" (1/1) ...
[2022-02-18 21:52:36,923 INFO L137 Inliner]: procedures = 10, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48
[2022-02-18 21:52:36,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-18 21:52:36,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-18 21:52:36,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-18 21:52:36,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-18 21:52:36,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36" (1/1) ...
[2022-02-18 21:52:36,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36" (1/1) ...
[2022-02-18 21:52:36,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36" (1/1) ...
[2022-02-18 21:52:36,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36" (1/1) ...
[2022-02-18 21:52:36,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36" (1/1) ...
[2022-02-18 21:52:36,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36" (1/1) ...
[2022-02-18 21:52:36,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36" (1/1) ...
[2022-02-18 21:52:36,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-18 21:52:36,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-18 21:52:36,952 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-18 21:52:36,952 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-18 21:52:36,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36" (1/1) ...
[2022-02-18 21:52:36,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-18 21:52:36,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 21:52:36,973 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)
[2022-02-18 21:52:36,974 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
[2022-02-18 21:52:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-18 21:52:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-18 21:52:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure foo
[2022-02-18 21:52:37,019 INFO L138 BoogieDeclarations]: Found implementation of procedure foo
[2022-02-18 21:52:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-18 21:52:37,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-18 21:52:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-02-18 21:52:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-18 21:52:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-18 21:52:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-18 21:52:37,021 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-18 21:52:37,077 INFO L234 CfgBuilder]: Building ICFG
[2022-02-18 21:52:37,078 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-18 21:52:37,221 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-18 21:52:37,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-18 21:52:37,238 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-02-18 21:52:37,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:52:37 BoogieIcfgContainer
[2022-02-18 21:52:37,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-18 21:52:37,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-18 21:52:37,241 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-18 21:52:37,257 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-18 21:52:37,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 09:52:36" (1/3) ...
[2022-02-18 21:52:37,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bcd69fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 09:52:37, skipping insertion in model container
[2022-02-18 21:52:37,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:52:36" (2/3) ...
[2022-02-18 21:52:37,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bcd69fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 09:52:37, skipping insertion in model container
[2022-02-18 21:52:37,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:52:37" (3/3) ...
[2022-02-18 21:52:37,259 INFO L111 eAbstractionObserver]: Analyzing ICFG forkJoinInLoop.c
[2022-02-18 21:52:37,263 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-18 21:52:37,263 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-18 21:52:37,263 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-18 21:52:37,263 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-18 21:52:37,297 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,298 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,298 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,298 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,298 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,298 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,299 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,299 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,299 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,299 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,302 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,302 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,302 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,302 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,302 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 21:52:37,306 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2022-02-18 21:52:37,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-02-18 21:52:37,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 21:52:37,361 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)
[2022-02-18 21:52:37,362 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
[2022-02-18 21:52:37,382 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-18 21:52:37,386 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=true
[2022-02-18 21:52:37,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-02-18 21:52:37,416 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] ===
[2022-02-18 21:52:37,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 21:52:37,420 INFO L85 PathProgramCache]: Analyzing trace with hash -687358722, now seen corresponding path program 1 times
[2022-02-18 21:52:37,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 21:52:37,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234817272]
[2022-02-18 21:52:37,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 21:52:37,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 21:52:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 21:52:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 21:52:37,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 21:52:37,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234817272]
[2022-02-18 21:52:37,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234817272] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 21:52:37,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 21:52:37,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-02-18 21:52:37,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66846114]
[2022-02-18 21:52:37,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 21:52:37,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-02-18 21:52:37,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 21:52:37,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-02-18 21:52:37,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-02-18 21:52:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-18 21:52:37,563 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-18 21:52:37,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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)
[2022-02-18 21:52:37,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-18 21:52:37,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-18 21:52:37,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-18 21:52:37,572 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] ===
[2022-02-18 21:52:37,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 21:52:37,575 INFO L85 PathProgramCache]: Analyzing trace with hash 873243086, now seen corresponding path program 1 times
[2022-02-18 21:52:37,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 21:52:37,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315996106]
[2022-02-18 21:52:37,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 21:52:37,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 21:52:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 21:52:37,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 21:52:37,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 21:52:37,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315996106]
[2022-02-18 21:52:37,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315996106] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 21:52:37,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 21:52:37,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-02-18 21:52:37,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805249332]
[2022-02-18 21:52:37,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 21:52:37,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-02-18 21:52:37,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 21:52:37,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-02-18 21:52:37,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-02-18 21:52:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-18 21:52:37,634 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-18 21:52:37,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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)
[2022-02-18 21:52:37,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-18 21:52:37,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-18 21:52:37,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-18 21:52:37,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-02-18 21:52:37,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-18 21:52:37,718 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] ===
[2022-02-18 21:52:37,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 21:52:37,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1896857757, now seen corresponding path program 1 times
[2022-02-18 21:52:37,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 21:52:37,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931717552]
[2022-02-18 21:52:37,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 21:52:37,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 21:52:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 21:52:37,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 21:52:37,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 21:52:37,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931717552]
[2022-02-18 21:52:37,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931717552] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 21:52:37,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490148003]
[2022-02-18 21:52:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 21:52:37,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 21:52:37,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 21:52:37,928 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)
[2022-02-18 21:52:37,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-02-18 21:52:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 21:52:37,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core
[2022-02-18 21:52:37,996 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 21:52:38,042 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2022-02-18 21:52:38,063 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 21:52:38,064 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2022-02-18 21:52:38,150 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-18 21:52:38,252 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 21:52:38,263 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2022-02-18 21:52:38,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 21:52:38,268 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 21:52:38,366 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_26 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#thread_id~0#1.base| v_ArrVal_26) |c_ULTIMATE.start_main_~#x~0#1.base|) |c_ULTIMATE.start_main_~#x~0#1.offset|) 1)) is different from false
[2022-02-18 21:52:38,397 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2022-02-18 21:52:38,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked.
[2022-02-18 21:52:38,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490148003] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 21:52:38,419 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 21:52:38,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18
[2022-02-18 21:52:38,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288336943]
[2022-02-18 21:52:38,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 21:52:38,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2022-02-18 21:52:38,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 21:52:38,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2022-02-18 21:52:38,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=222, Unknown=1, NotChecked=30, Total=306
[2022-02-18 21:52:38,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-18 21:52:38,421 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-18 21:52:38,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 21:52:38,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-18 21:52:38,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2022-02-18 21:52:38,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-18 21:52:38,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-18 21:52:38,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-02-18 21:52:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2022-02-18 21:52:38,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-02-18 21:52:38,880 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
[2022-02-18 21:52:38,880 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] ===
[2022-02-18 21:52:38,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 21:52:38,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1468554424, now seen corresponding path program 2 times
[2022-02-18 21:52:38,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 21:52:38,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621595223]
[2022-02-18 21:52:38,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 21:52:38,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 21:52:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-18 21:52:38,913 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-02-18 21:52:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-18 21:52:38,961 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-02-18 21:52:38,961 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2022-02-18 21:52:38,963 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining)
[2022-02-18 21:52:38,966 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining)
[2022-02-18 21:52:38,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-18 21:52:38,970 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2022-02-18 21:52:38,974 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-18 21:52:38,974 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-18 21:52:39,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 09:52:39 BasicIcfg
[2022-02-18 21:52:39,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-18 21:52:39,007 INFO L158 Benchmark]: Toolchain (without parser) took 2267.44ms. Allocated memory was 212.9MB in the beginning and 284.2MB in the end (delta: 71.3MB). Free memory was 154.5MB in the beginning and 211.7MB in the end (delta: -57.3MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB.
[2022-02-18 21:52:39,007 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 212.9MB. Free memory is still 172.8MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-18 21:52:39,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.30ms. Allocated memory was 212.9MB in the beginning and 284.2MB in the end (delta: 71.3MB). Free memory was 154.2MB in the beginning and 253.0MB in the end (delta: -98.8MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB.
[2022-02-18 21:52:39,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.02ms. Allocated memory is still 284.2MB. Free memory was 253.0MB in the beginning and 251.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-18 21:52:39,008 INFO L158 Benchmark]: Boogie Preprocessor took 27.59ms. Allocated memory is still 284.2MB. Free memory was 251.5MB in the beginning and 250.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-18 21:52:39,008 INFO L158 Benchmark]: RCFGBuilder took 287.47ms. Allocated memory is still 284.2MB. Free memory was 250.4MB in the beginning and 240.5MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
[2022-02-18 21:52:39,009 INFO L158 Benchmark]: TraceAbstraction took 1765.83ms. Allocated memory is still 284.2MB. Free memory was 239.9MB in the beginning and 211.7MB in the end (delta: 28.2MB). Peak memory consumption was 27.7MB. Max. memory is 8.0GB.
[2022-02-18 21:52:39,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.09ms. Allocated memory is still 212.9MB. Free memory is still 172.8MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 158.30ms. Allocated memory was 212.9MB in the beginning and 284.2MB in the end (delta: 71.3MB). Free memory was 154.2MB in the beginning and 253.0MB in the end (delta: -98.8MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 24.02ms. Allocated memory is still 284.2MB. Free memory was 253.0MB in the beginning and 251.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 27.59ms. Allocated memory is still 284.2MB. Free memory was 251.5MB in the beginning and 250.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 287.47ms. Allocated memory is still 284.2MB. Free memory was 250.4MB in the beginning and 240.5MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
* TraceAbstraction took 1765.83ms. Allocated memory is still 284.2MB. Free memory was 239.9MB in the beginning and 211.7MB in the end (delta: 28.2MB). Peak memory consumption was 27.7MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Independence relation benchmarks
ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 31, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 18, 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: 18, positive: 18, positive conditional: 18, 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: 18, positive: 18, positive conditional: 12, positive unconditional: 6, 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: 18, positive: 18, positive conditional: 4, positive unconditional: 14, 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: 18, positive: 18, positive conditional: 4, positive unconditional: 14, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 18, positive: 12, positive conditional: 4, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0, Independence queries for same thread: 13
- 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
- CounterExampleResult [Line: 30]: assertion can be violated
assertion can be violated
We found a FailurePath:
[L19] 0 pthread_t thread_id;
VAL [thread_id={6:0}]
[L21] 0 int x = 1;
VAL [thread_id={6:0}, x={5:0}]
[L23] EXPR 0 \read(x)
VAL [\read(x)=1, thread_id={6:0}, x={5:0}]
[L23] COND TRUE 0 x < 3
VAL [\read(x)=1, thread_id={6:0}, x={5:0}]
[L24] FCALL, FORK 0 pthread_create(&thread_id, NULL, foo, &x)
VAL [i={5:0}, pthread_create(&thread_id, NULL, foo, &x)=-2, thread_id={6:0}, x={5:0}]
[L25] 0 \read(x)
VAL [i={5:0}, thread_id={6:0}, x={5:0}]
[L26] 0 \read(thread_id)
VAL [\read(thread_id)=-2, i={5:0}, thread_id={6:0}, x={5:0}]
[L15] 1 int y = 4;
VAL [i={5:0}, i={5:0}, y=4]
[L26] FCALL, JOIN 1 pthread_join(thread_id, NULL)
VAL [\read(thread_id)=-2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4]
[L27] 0 \read(x)
VAL [i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4]
[L28] EXPR 0 \read(x)
VAL [\read(x)=1, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4]
[L28] 0 x++
VAL [\read(x)=1, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, x++=1, y=4]
[L23] EXPR 0 \read(x)
VAL [\read(x)=2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4]
[L23] COND TRUE 0 x < 3
VAL [\read(x)=2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4]
[L24] FCALL, FORK 0 pthread_create(&thread_id, NULL, foo, &x)
VAL [i={5:0}, pthread_create(&thread_id, NULL, foo, &x)=-1, thread_id={6:0}, x={5:0}]
[L25] 0 \read(x)
VAL [i={5:0}, thread_id={6:0}, x={5:0}]
[L26] 0 \read(thread_id)
VAL [\read(thread_id)=-1, i={5:0}, thread_id={6:0}, x={5:0}]
[L15] 1 int y = 4;
VAL [i={5:0}, i={5:0}, y=4]
[L26] FCALL, JOIN 1 pthread_join(thread_id, NULL)
VAL [\read(thread_id)=-1, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4]
[L27] 0 \read(x)
VAL [i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4]
[L28] EXPR 0 \read(x)
VAL [\read(x)=2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4]
[L28] 0 x++
VAL [\read(x)=2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, x++=2, y=4]
[L23] EXPR 0 \read(x)
VAL [\read(x)=3, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4]
[L23] COND FALSE 0 !(x < 3)
VAL [\read(x)=3, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4]
[L30] 0 CodeAnnotStmt[Assertion]
VAL [i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4]
- UnprovableResult [Line: 24]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 3 procedures, 57 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 19, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 156 ConstructedInterpolants, 6 QuantifiedInterpolants, 799 SizeOfPredicates, 8 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 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 proved your program to be incorrect!
[2022-02-18 21:52:39,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0
[2022-02-18 21:52:39,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...