/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd
[2022-02-08 23:57:28,287 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-08 23:57:28,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-08 23:57:28,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-08 23:57:28,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-08 23:57:28,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-08 23:57:28,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-08 23:57:28,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-08 23:57:28,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-08 23:57:28,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-08 23:57:28,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-08 23:57:28,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-08 23:57:28,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-08 23:57:28,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-08 23:57:28,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-08 23:57:28,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-08 23:57:28,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-08 23:57:28,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-08 23:57:28,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-08 23:57:28,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-08 23:57:28,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-08 23:57:28,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-08 23:57:28,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-08 23:57:28,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-08 23:57:28,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-08 23:57:28,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-08 23:57:28,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-08 23:57:28,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2022-02-08 23:57:28,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-08 23:57:28,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-08 23:57:28,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-08 23:57:28,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2022-02-08 23:57:28,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-08 23:57:28,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2022-02-08 23:57:28,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-08 23:57:28,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-02-08 23:57:28,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-08 23:57:28,387 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-FA-NoLbe.epf
[2022-02-08 23:57:28,413 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-08 23:57:28,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-08 23:57:28,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-08 23:57:28,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-08 23:57:28,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-08 23:57:28,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-08 23:57:28,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-08 23:57:28,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-08 23:57:28,415 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-08 23:57:28,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-08 23:57:28,415 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-08 23:57:28,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-08 23:57:28,415 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-08 23:57:28,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-08 23:57:28,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-08 23:57:28,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-08 23:57:28,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-08 23:57:28,416 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-08 23:57:28,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-08 23:57:28,416 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-08 23:57:28,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-08 23:57:28,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-08 23:57:28,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-08 23:57:28,416 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-08 23:57:28,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-08 23:57:28,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-08 23:57:28,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-08 23:57:28,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-08 23:57:28,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-08 23:57:28,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-08 23:57:28,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-08 23:57:28,417 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-08 23:57:28,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-08 23:57:28,417 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-08 23:57:28,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-08 23:57:28,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-08 23:57:28,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-08 23:57:28,631 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-08 23:57:28,631 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-08 23:57:28,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.i
[2022-02-08 23:57:28,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88c98b68/988a527355454ce49120d2c5381cdd46/FLAG4dd4f4330
[2022-02-08 23:57:29,057 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-08 23:57:29,058 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.i
[2022-02-08 23:57:29,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88c98b68/988a527355454ce49120d2c5381cdd46/FLAG4dd4f4330
[2022-02-08 23:57:29,410 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88c98b68/988a527355454ce49120d2c5381cdd46
[2022-02-08 23:57:29,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-08 23:57:29,415 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-08 23:57:29,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-08 23:57:29,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-08 23:57:29,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-08 23:57:29,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 11:57:29" (1/1) ...
[2022-02-08 23:57:29,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4067e2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29, skipping insertion in model container
[2022-02-08 23:57:29,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 11:57:29" (1/1) ...
[2022-02-08 23:57:29,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-08 23:57:29,468 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-08 23:57:29,652 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-wmm/safe004_tso.i[945,958]
[2022-02-08 23:57:29,787 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-08 23:57:29,793 INFO L203 MainTranslator]: Completed pre-run
[2022-02-08 23:57:29,802 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-wmm/safe004_tso.i[945,958]
[2022-02-08 23:57:29,835 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-08 23:57:29,862 INFO L208 MainTranslator]: Completed translation
[2022-02-08 23:57:29,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29 WrapperNode
[2022-02-08 23:57:29,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-08 23:57:29,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-08 23:57:29,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-08 23:57:29,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-08 23:57:29,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29" (1/1) ...
[2022-02-08 23:57:29,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29" (1/1) ...
[2022-02-08 23:57:29,910 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70
[2022-02-08 23:57:29,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-08 23:57:29,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-08 23:57:29,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-08 23:57:29,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-08 23:57:29,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29" (1/1) ...
[2022-02-08 23:57:29,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29" (1/1) ...
[2022-02-08 23:57:29,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29" (1/1) ...
[2022-02-08 23:57:29,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29" (1/1) ...
[2022-02-08 23:57:29,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29" (1/1) ...
[2022-02-08 23:57:29,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29" (1/1) ...
[2022-02-08 23:57:29,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29" (1/1) ...
[2022-02-08 23:57:29,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-08 23:57:29,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-08 23:57:29,941 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-08 23:57:29,941 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-08 23:57:29,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29" (1/1) ...
[2022-02-08 23:57:29,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-08 23:57:29,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-08 23:57:29,984 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)
[2022-02-08 23:57:30,047 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
[2022-02-08 23:57:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-08 23:57:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-02-08 23:57:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-08 23:57:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-08 23:57:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-08 23:57:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2022-02-08 23:57:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2022-02-08 23:57:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2022-02-08 23:57:30,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2022-02-08 23:57:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2022-02-08 23:57:30,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2022-02-08 23:57:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-08 23:57:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-02-08 23:57:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-08 23:57:30,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-08 23:57:30,063 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-08 23:57:30,154 INFO L234 CfgBuilder]: Building ICFG
[2022-02-08 23:57:30,155 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-08 23:57:30,328 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-08 23:57:30,333 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-08 23:57:30,333 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-08 23:57:30,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.02 11:57:30 BoogieIcfgContainer
[2022-02-08 23:57:30,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-08 23:57:30,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-08 23:57:30,335 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-08 23:57:30,340 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-08 23:57:30,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 11:57:29" (1/3) ...
[2022-02-08 23:57:30,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a0f45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 11:57:30, skipping insertion in model container
[2022-02-08 23:57:30,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:29" (2/3) ...
[2022-02-08 23:57:30,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a0f45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 11:57:30, skipping insertion in model container
[2022-02-08 23:57:30,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.02 11:57:30" (3/3) ...
[2022-02-08 23:57:30,341 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.i
[2022-02-08 23:57:30,345 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-08 23:57:30,345 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-08 23:57:30,345 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-08 23:57:30,345 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-08 23:57:30,391 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,391 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,391 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,391 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,392 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,392 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,393 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,393 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,394 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,394 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,395 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,396 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,396 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,396 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,396 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,397 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,397 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,397 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,397 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,397 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,398 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,398 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,398 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,398 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,399 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,399 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,399 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,399 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,400 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,400 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,400 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,400 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,400 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,401 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,402 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,402 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,405 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,405 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,405 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,406 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,411 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,411 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,411 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,411 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,413 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,413 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,413 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,414 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:30,415 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-02-08 23:57:30,449 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-08 23:57:30,459 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2022-02-08 23:57:30,459 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2022-02-08 23:57:30,471 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 91 transitions, 197 flow
[2022-02-08 23:57:30,679 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 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)
[2022-02-08 23:57:30,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 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)
[2022-02-08 23:57:30,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2022-02-08 23:57:30,732 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-08 23:57:30,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-08 23:57:30,733 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:30,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:30,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1258848663, now seen corresponding path program 1 times
[2022-02-08 23:57:30,742 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:30,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174460611]
[2022-02-08 23:57:30,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:30,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:31,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:31,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174460611]
[2022-02-08 23:57:31,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174460611] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:31,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:31,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-08 23:57:31,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347851955]
[2022-02-08 23:57:31,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:31,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-08 23:57:31,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:31,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-08 23:57:31,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-02-08 23:57:31,241 INFO L87 Difference]: Start difference. First operand has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 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) Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:31,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:31,557 INFO L93 Difference]: Finished difference Result 8939 states and 30759 transitions.
[2022-02-08 23:57:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2022-02-08 23:57:31,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54
[2022-02-08 23:57:31,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:31,600 INFO L225 Difference]: With dead ends: 8939
[2022-02-08 23:57:31,600 INFO L226 Difference]: Without dead ends: 4566
[2022-02-08 23:57:31,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2022-02-08 23:57:31,605 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 226 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:31,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 531 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-08 23:57:31,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states.
[2022-02-08 23:57:31,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 4146.
[2022-02-08 23:57:31,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4146 states, 4145 states have (on average 3.233534378769602) internal successors, (13403), 4145 states have internal predecessors, (13403), 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)
[2022-02-08 23:57:31,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4146 states to 4146 states and 13403 transitions.
[2022-02-08 23:57:31,869 INFO L78 Accepts]: Start accepts. Automaton has 4146 states and 13403 transitions. Word has length 54
[2022-02-08 23:57:31,870 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:31,871 INFO L470 AbstractCegarLoop]: Abstraction has 4146 states and 13403 transitions.
[2022-02-08 23:57:31,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:31,872 INFO L276 IsEmpty]: Start isEmpty. Operand 4146 states and 13403 transitions.
[2022-02-08 23:57:31,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2022-02-08 23:57:31,883 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-08 23:57:31,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-08 23:57:31,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-08 23:57:31,883 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:31,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:31,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1053773669, now seen corresponding path program 1 times
[2022-02-08 23:57:31,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:31,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681264339]
[2022-02-08 23:57:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:31,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:32,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:32,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681264339]
[2022-02-08 23:57:32,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681264339] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:32,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:32,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-08 23:57:32,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091403948]
[2022-02-08 23:57:32,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:32,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-08 23:57:32,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:32,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-08 23:57:32,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-02-08 23:57:32,050 INFO L87 Difference]: Start difference. First operand 4146 states and 13403 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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)
[2022-02-08 23:57:32,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:32,230 INFO L93 Difference]: Finished difference Result 5155 states and 16706 transitions.
[2022-02-08 23:57:32,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2022-02-08 23:57:32,230 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) Word has length 58
[2022-02-08 23:57:32,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:32,250 INFO L225 Difference]: With dead ends: 5155
[2022-02-08 23:57:32,250 INFO L226 Difference]: Without dead ends: 4160
[2022-02-08 23:57:32,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2022-02-08 23:57:32,254 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 188 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:32,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 508 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:32,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4160 states.
[2022-02-08 23:57:32,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4160 to 3696.
[2022-02-08 23:57:32,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3696 states, 3695 states have (on average 3.19702300405954) internal successors, (11813), 3695 states have internal predecessors, (11813), 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)
[2022-02-08 23:57:32,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3696 states to 3696 states and 11813 transitions.
[2022-02-08 23:57:32,394 INFO L78 Accepts]: Start accepts. Automaton has 3696 states and 11813 transitions. Word has length 58
[2022-02-08 23:57:32,396 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:32,396 INFO L470 AbstractCegarLoop]: Abstraction has 3696 states and 11813 transitions.
[2022-02-08 23:57:32,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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)
[2022-02-08 23:57:32,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3696 states and 11813 transitions.
[2022-02-08 23:57:32,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2022-02-08 23:57:32,403 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-08 23:57:32,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-08 23:57:32,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-08 23:57:32,404 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:32,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:32,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1684957471, now seen corresponding path program 1 times
[2022-02-08 23:57:32,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:32,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491954115]
[2022-02-08 23:57:32,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:32,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:32,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:32,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491954115]
[2022-02-08 23:57:32,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491954115] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:32,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:32,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-08 23:57:32,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107945892]
[2022-02-08 23:57:32,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:32,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-08 23:57:32,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:32,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-08 23:57:32,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-08 23:57:32,527 INFO L87 Difference]: Start difference. First operand 3696 states and 11813 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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)
[2022-02-08 23:57:32,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:32,666 INFO L93 Difference]: Finished difference Result 5879 states and 18658 transitions.
[2022-02-08 23:57:32,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2022-02-08 23:57:32,667 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) Word has length 58
[2022-02-08 23:57:32,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:32,700 INFO L225 Difference]: With dead ends: 5879
[2022-02-08 23:57:32,700 INFO L226 Difference]: Without dead ends: 3254
[2022-02-08 23:57:32,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210
[2022-02-08 23:57:32,705 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 265 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:32,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 497 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:32,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states.
[2022-02-08 23:57:32,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 2946.
[2022-02-08 23:57:32,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2945 states have (on average 3.0740237691001697) internal successors, (9053), 2945 states have internal predecessors, (9053), 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)
[2022-02-08 23:57:32,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 9053 transitions.
[2022-02-08 23:57:32,899 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 9053 transitions. Word has length 58
[2022-02-08 23:57:32,900 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:32,900 INFO L470 AbstractCegarLoop]: Abstraction has 2946 states and 9053 transitions.
[2022-02-08 23:57:32,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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)
[2022-02-08 23:57:32,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 9053 transitions.
[2022-02-08 23:57:32,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2022-02-08 23:57:32,905 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-08 23:57:32,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-08 23:57:32,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-08 23:57:32,906 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:32,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:32,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1107932126, now seen corresponding path program 1 times
[2022-02-08 23:57:32,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:32,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054179513]
[2022-02-08 23:57:32,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:32,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:33,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:33,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054179513]
[2022-02-08 23:57:33,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054179513] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:33,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:33,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-08 23:57:33,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226635663]
[2022-02-08 23:57:33,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:33,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-08 23:57:33,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:33,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-08 23:57:33,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-02-08 23:57:33,045 INFO L87 Difference]: Start difference. First operand 2946 states and 9053 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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)
[2022-02-08 23:57:33,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:33,161 INFO L93 Difference]: Finished difference Result 3620 states and 11200 transitions.
[2022-02-08 23:57:33,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-02-08 23:57:33,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) Word has length 60
[2022-02-08 23:57:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:33,188 INFO L225 Difference]: With dead ends: 3620
[2022-02-08 23:57:33,190 INFO L226 Difference]: Without dead ends: 2905
[2022-02-08 23:57:33,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156
[2022-02-08 23:57:33,193 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 157 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:33,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 437 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:33,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states.
[2022-02-08 23:57:33,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 2681.
[2022-02-08 23:57:33,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2680 states have (on average 3.062686567164179) internal successors, (8208), 2680 states have internal predecessors, (8208), 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)
[2022-02-08 23:57:33,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 8208 transitions.
[2022-02-08 23:57:33,247 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 8208 transitions. Word has length 60
[2022-02-08 23:57:33,247 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:33,247 INFO L470 AbstractCegarLoop]: Abstraction has 2681 states and 8208 transitions.
[2022-02-08 23:57:33,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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)
[2022-02-08 23:57:33,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 8208 transitions.
[2022-02-08 23:57:33,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2022-02-08 23:57:33,254 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-08 23:57:33,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-08 23:57:33,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-08 23:57:33,254 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:33,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:33,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1855465848, now seen corresponding path program 1 times
[2022-02-08 23:57:33,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:33,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999241960]
[2022-02-08 23:57:33,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:33,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:33,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:33,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:33,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999241960]
[2022-02-08 23:57:33,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999241960] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:33,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:33,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-08 23:57:33,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349572749]
[2022-02-08 23:57:33,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:33,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-08 23:57:33,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:33,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-08 23:57:33,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-02-08 23:57:33,366 INFO L87 Difference]: Start difference. First operand 2681 states and 8208 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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)
[2022-02-08 23:57:33,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:33,478 INFO L93 Difference]: Finished difference Result 3041 states and 9306 transitions.
[2022-02-08 23:57:33,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-02-08 23:57:33,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) Word has length 61
[2022-02-08 23:57:33,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:33,483 INFO L225 Difference]: With dead ends: 3041
[2022-02-08 23:57:33,483 INFO L226 Difference]: Without dead ends: 1536
[2022-02-08 23:57:33,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182
[2022-02-08 23:57:33,484 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 132 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:33,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 663 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:33,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states.
[2022-02-08 23:57:33,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1536.
[2022-02-08 23:57:33,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1535 states have (on average 3.0201954397394135) internal successors, (4636), 1535 states have internal predecessors, (4636), 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)
[2022-02-08 23:57:33,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 4636 transitions.
[2022-02-08 23:57:33,512 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 4636 transitions. Word has length 61
[2022-02-08 23:57:33,512 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:33,512 INFO L470 AbstractCegarLoop]: Abstraction has 1536 states and 4636 transitions.
[2022-02-08 23:57:33,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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)
[2022-02-08 23:57:33,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 4636 transitions.
[2022-02-08 23:57:33,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2022-02-08 23:57:33,515 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-08 23:57:33,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-08 23:57:33,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-08 23:57:33,515 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:33,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:33,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1495222820, now seen corresponding path program 1 times
[2022-02-08 23:57:33,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:33,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831625105]
[2022-02-08 23:57:33,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:33,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:33,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:33,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:33,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831625105]
[2022-02-08 23:57:33,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831625105] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:33,593 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:33,593 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-08 23:57:33,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273781712]
[2022-02-08 23:57:33,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:33,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-08 23:57:33,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:33,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-08 23:57:33,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-02-08 23:57:33,594 INFO L87 Difference]: Start difference. First operand 1536 states and 4636 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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)
[2022-02-08 23:57:33,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:33,660 INFO L93 Difference]: Finished difference Result 1774 states and 5298 transitions.
[2022-02-08 23:57:33,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-02-08 23:57:33,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) Word has length 62
[2022-02-08 23:57:33,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:33,663 INFO L225 Difference]: With dead ends: 1774
[2022-02-08 23:57:33,663 INFO L226 Difference]: Without dead ends: 1354
[2022-02-08 23:57:33,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2022-02-08 23:57:33,665 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 106 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:33,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 325 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:33,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states.
[2022-02-08 23:57:33,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1354.
[2022-02-08 23:57:33,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1353 states have (on average 2.9793052475979307) internal successors, (4031), 1353 states have internal predecessors, (4031), 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)
[2022-02-08 23:57:33,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 4031 transitions.
[2022-02-08 23:57:33,708 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 4031 transitions. Word has length 62
[2022-02-08 23:57:33,720 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:33,721 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 4031 transitions.
[2022-02-08 23:57:33,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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)
[2022-02-08 23:57:33,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 4031 transitions.
[2022-02-08 23:57:33,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2022-02-08 23:57:33,723 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-08 23:57:33,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-08 23:57:33,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-08 23:57:33,724 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:33,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:33,725 INFO L85 PathProgramCache]: Analyzing trace with hash 869716769, now seen corresponding path program 1 times
[2022-02-08 23:57:33,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:33,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23236091]
[2022-02-08 23:57:33,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:33,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:33,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:33,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23236091]
[2022-02-08 23:57:33,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23236091] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:33,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:33,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-08 23:57:33,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338384744]
[2022-02-08 23:57:33,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:33,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-08 23:57:33,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:33,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-08 23:57:33,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-02-08 23:57:33,834 INFO L87 Difference]: Start difference. First operand 1354 states and 4031 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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)
[2022-02-08 23:57:33,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:33,912 INFO L93 Difference]: Finished difference Result 1207 states and 3471 transitions.
[2022-02-08 23:57:33,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-02-08 23:57:33,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) Word has length 63
[2022-02-08 23:57:33,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:33,915 INFO L225 Difference]: With dead ends: 1207
[2022-02-08 23:57:33,915 INFO L226 Difference]: Without dead ends: 892
[2022-02-08 23:57:33,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2022-02-08 23:57:33,916 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 148 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:33,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 353 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:33,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states.
[2022-02-08 23:57:33,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 892.
[2022-02-08 23:57:33,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 891 states have (on average 2.814814814814815) internal successors, (2508), 891 states have internal predecessors, (2508), 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)
[2022-02-08 23:57:33,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 2508 transitions.
[2022-02-08 23:57:33,947 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 2508 transitions. Word has length 63
[2022-02-08 23:57:33,947 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:33,947 INFO L470 AbstractCegarLoop]: Abstraction has 892 states and 2508 transitions.
[2022-02-08 23:57:33,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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)
[2022-02-08 23:57:33,947 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 2508 transitions.
[2022-02-08 23:57:33,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2022-02-08 23:57:33,948 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-08 23:57:33,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-08 23:57:33,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-02-08 23:57:33,949 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:33,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:33,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1402612284, now seen corresponding path program 1 times
[2022-02-08 23:57:33,950 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:33,950 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853639028]
[2022-02-08 23:57:33,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:33,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:34,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:34,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:34,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853639028]
[2022-02-08 23:57:34,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853639028] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:34,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:34,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-08 23:57:34,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820465117]
[2022-02-08 23:57:34,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:34,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-08 23:57:34,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:34,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-08 23:57:34,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-08 23:57:34,044 INFO L87 Difference]: Start difference. First operand 892 states and 2508 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:34,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:34,094 INFO L93 Difference]: Finished difference Result 523 states and 1395 transitions.
[2022-02-08 23:57:34,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-08 23:57:34,094 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64
[2022-02-08 23:57:34,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:34,094 INFO L225 Difference]: With dead ends: 523
[2022-02-08 23:57:34,094 INFO L226 Difference]: Without dead ends: 0
[2022-02-08 23:57:34,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2022-02-08 23:57:34,095 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 147 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:34,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 235 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:34,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-02-08 23:57:34,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-02-08 23:57:34,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2022-02-08 23:57:34,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-02-08 23:57:34,096 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64
[2022-02-08 23:57:34,096 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:34,096 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-08 23:57:34,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:34,096 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-02-08 23:57:34,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-02-08 23:57:34,098 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining)
[2022-02-08 23:57:34,098 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining)
[2022-02-08 23:57:34,098 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining)
[2022-02-08 23:57:34,098 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining)
[2022-02-08 23:57:34,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-02-08 23:57:34,100 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-08 23:57:34,101 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-08 23:57:34,101 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-08 23:57:34,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 11:57:34 BasicIcfg
[2022-02-08 23:57:34,105 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-08 23:57:34,105 INFO L158 Benchmark]: Toolchain (without parser) took 4690.42ms. Allocated memory was 166.7MB in the beginning and 324.0MB in the end (delta: 157.3MB). Free memory was 113.7MB in the beginning and 209.7MB in the end (delta: -96.0MB). Peak memory consumption was 61.5MB. Max. memory is 8.0GB.
[2022-02-08 23:57:34,105 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 166.7MB. Free memory is still 131.3MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-08 23:57:34,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.63ms. Allocated memory was 166.7MB in the beginning and 201.3MB in the end (delta: 34.6MB). Free memory was 113.6MB in the beginning and 168.8MB in the end (delta: -55.2MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB.
[2022-02-08 23:57:34,106 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.90ms. Allocated memory is still 201.3MB. Free memory was 168.8MB in the beginning and 166.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-08 23:57:34,106 INFO L158 Benchmark]: Boogie Preprocessor took 28.63ms. Allocated memory is still 201.3MB. Free memory was 166.7MB in the beginning and 165.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-08 23:57:34,106 INFO L158 Benchmark]: RCFGBuilder took 393.57ms. Allocated memory is still 201.3MB. Free memory was 165.1MB in the beginning and 152.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2022-02-08 23:57:34,106 INFO L158 Benchmark]: TraceAbstraction took 3769.43ms. Allocated memory was 201.3MB in the beginning and 324.0MB in the end (delta: 122.7MB). Free memory was 152.0MB in the beginning and 209.7MB in the end (delta: -57.8MB). Peak memory consumption was 64.9MB. Max. memory is 8.0GB.
[2022-02-08 23:57:34,108 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 166.7MB. Free memory is still 131.3MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 447.63ms. Allocated memory was 166.7MB in the beginning and 201.3MB in the end (delta: 34.6MB). Free memory was 113.6MB in the beginning and 168.8MB in the end (delta: -55.2MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 46.90ms. Allocated memory is still 201.3MB. Free memory was 168.8MB in the beginning and 166.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 28.63ms. Allocated memory is still 201.3MB. Free memory was 166.7MB in the beginning and 165.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 393.57ms. Allocated memory is still 201.3MB. Free memory was 165.1MB in the beginning and 152.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
* TraceAbstraction took 3769.43ms. Allocated memory was 201.3MB in the beginning and 324.0MB in the end (delta: 122.7MB). Free memory was 152.0MB in the beginning and 209.7MB in the end (delta: -57.8MB). Peak memory consumption was 64.9MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- 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
- PositiveResult [Line: 18]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 7 procedures, 114 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1369 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1369 mSDsluCounter, 3549 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2821 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 419 IncrementalHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 813 mSDtfsCounter, 419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6590occurred in iteration=0, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 1416 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 480 NumberOfCodeBlocks, 480 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 472 ConstructedInterpolants, 0 QuantifiedInterpolants, 2254 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-02-08 23:57:34,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...