/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/safe023_tso.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a
[2022-02-18 13:38:22,378 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-18 13:38:22,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-18 13:38:22,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-18 13:38:22,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-18 13:38:22,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-18 13:38:22,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-18 13:38:22,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-18 13:38:22,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-18 13:38:22,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-18 13:38:22,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-18 13:38:22,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-18 13:38:22,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-18 13:38:22,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-18 13:38:22,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-18 13:38:22,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-18 13:38:22,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-18 13:38:22,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-18 13:38:22,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-18 13:38:22,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-18 13:38:22,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-18 13:38:22,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-18 13:38:22,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-18 13:38:22,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-18 13:38:22,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-18 13:38:22,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-18 13:38:22,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2022-02-18 13:38:22,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
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[2022-02-18 13:38:22,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2022-02-18 13:38:22,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-02-18 13:38:22,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-18 13:38:22,476 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
[2022-02-18 13:38:22,497 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-18 13:38:22,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-18 13:38:22,497 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-18 13:38:22,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-18 13:38:22,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-18 13:38:22,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-18 13:38:22,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-18 13:38:22,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-18 13:38:22,499 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-18 13:38:22,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-18 13:38:22,499 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-18 13:38:22,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-18 13:38:22,499 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-18 13:38:22,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-18 13:38:22,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-18 13:38:22,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-18 13:38:22,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-18 13:38:22,500 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-18 13:38:22,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-18 13:38:22,500 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-18 13:38:22,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-18 13:38:22,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-18 13:38:22,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-18 13:38:22,501 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-18 13:38:22,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-18 13:38:22,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-18 13:38:22,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-18 13:38:22,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-18 13:38:22,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-18 13:38:22,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-18 13:38:22,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-18 13:38:22,502 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-18 13:38:22,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-18 13:38:22,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-18 13:38:22,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-18 13:38:22,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-18 13:38:22,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-18 13:38:22,707 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-18 13:38:22,708 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-18 13:38:22,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i
[2022-02-18 13:38:22,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46ece1f71/e2eb1b994e014b018a95f0fdbc965d32/FLAG88aefe429
[2022-02-18 13:38:23,165 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-18 13:38:23,165 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i
[2022-02-18 13:38:23,181 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46ece1f71/e2eb1b994e014b018a95f0fdbc965d32/FLAG88aefe429
[2022-02-18 13:38:23,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46ece1f71/e2eb1b994e014b018a95f0fdbc965d32
[2022-02-18 13:38:23,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-18 13:38:23,195 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-18 13:38:23,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-18 13:38:23,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-18 13:38:23,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-18 13:38:23,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:38:23" (1/1) ...
[2022-02-18 13:38:23,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ff70ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23, skipping insertion in model container
[2022-02-18 13:38:23,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:38:23" (1/1) ...
[2022-02-18 13:38:23,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-18 13:38:23,241 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-18 13:38:23,384 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/safe023_tso.i[945,958]
[2022-02-18 13:38:23,486 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-18 13:38:23,494 INFO L203 MainTranslator]: Completed pre-run
[2022-02-18 13:38:23,505 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/safe023_tso.i[945,958]
[2022-02-18 13:38:23,532 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-18 13:38:23,555 INFO L208 MainTranslator]: Completed translation
[2022-02-18 13:38:23,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23 WrapperNode
[2022-02-18 13:38:23,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-18 13:38:23,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-18 13:38:23,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-18 13:38:23,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-18 13:38:23,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23" (1/1) ...
[2022-02-18 13:38:23,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23" (1/1) ...
[2022-02-18 13:38:23,584 INFO L137 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71
[2022-02-18 13:38:23,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-18 13:38:23,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-18 13:38:23,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-18 13:38:23,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-18 13:38:23,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23" (1/1) ...
[2022-02-18 13:38:23,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23" (1/1) ...
[2022-02-18 13:38:23,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23" (1/1) ...
[2022-02-18 13:38:23,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23" (1/1) ...
[2022-02-18 13:38:23,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23" (1/1) ...
[2022-02-18 13:38:23,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23" (1/1) ...
[2022-02-18 13:38:23,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23" (1/1) ...
[2022-02-18 13:38:23,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-18 13:38:23,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-18 13:38:23,601 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-18 13:38:23,601 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-18 13:38:23,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23" (1/1) ...
[2022-02-18 13:38:23,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-18 13:38:23,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:38:23,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-02-18 13:38:23,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-02-18 13:38:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-18 13:38:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-02-18 13:38:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-18 13:38:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-18 13:38:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-18 13:38:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2022-02-18 13:38:23,661 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2022-02-18 13:38:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2022-02-18 13:38:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2022-02-18 13:38:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2022-02-18 13:38:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2022-02-18 13:38:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-18 13:38:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-02-18 13:38:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-18 13:38:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-18 13:38:23,663 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-18 13:38:23,767 INFO L234 CfgBuilder]: Building ICFG
[2022-02-18 13:38:23,768 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-18 13:38:23,899 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-18 13:38:23,904 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-18 13:38:23,904 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-18 13:38:23,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:38:23 BoogieIcfgContainer
[2022-02-18 13:38:23,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-18 13:38:23,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-18 13:38:23,907 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-18 13:38:23,909 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-18 13:38:23,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 01:38:23" (1/3) ...
[2022-02-18 13:38:23,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74edcda5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:38:23, skipping insertion in model container
[2022-02-18 13:38:23,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:23" (2/3) ...
[2022-02-18 13:38:23,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74edcda5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:38:23, skipping insertion in model container
[2022-02-18 13:38:23,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:38:23" (3/3) ...
[2022-02-18 13:38:23,911 INFO L111 eAbstractionObserver]: Analyzing ICFG safe023_tso.i
[2022-02-18 13:38:23,916 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-18 13:38:23,916 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-18 13:38:23,916 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-18 13:38:23,916 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-18 13:38:23,947 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,947 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,947 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,948 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,948 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,948 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,948 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,948 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,949 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,949 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,949 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,949 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,949 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,949 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,949 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,949 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,950 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,950 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,950 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,950 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,950 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,950 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,951 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,951 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,951 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,951 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,951 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,951 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,951 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,951 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,951 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,952 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,952 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,952 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,952 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,952 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,955 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,955 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,955 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,955 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,957 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,957 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,957 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,958 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,958 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,958 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,958 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,958 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:23,959 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-02-18 13:38:23,987 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-18 13:38:23,992 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true
[2022-02-18 13:38:23,992 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2022-02-18 13:38:23,999 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 92 transitions, 199 flow
[2022-02-18 13:38:24,245 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:24,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:24,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2022-02-18 13:38:24,301 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:24,301 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]
[2022-02-18 13:38:24,302 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:24,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:24,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1011825075, now seen corresponding path program 1 times
[2022-02-18 13:38:24,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:24,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112284413]
[2022-02-18 13:38:24,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:24,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:24,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:24,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:24,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112284413]
[2022-02-18 13:38:24,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112284413] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:24,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:24,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-18 13:38:24,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188371617]
[2022-02-18 13:38:24,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:24,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-18 13:38:24,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:24,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-18 13:38:24,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-02-18 13:38:24,761 INFO L87 Difference]: Start difference. First operand has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 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 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:25,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:25,150 INFO L93 Difference]: Finished difference Result 11645 states and 39651 transitions.
[2022-02-18 13:38:25,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2022-02-18 13:38:25,153 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55
[2022-02-18 13:38:25,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:25,284 INFO L225 Difference]: With dead ends: 11645
[2022-02-18 13:38:25,285 INFO L226 Difference]: Without dead ends: 6887
[2022-02-18 13:38:25,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2022-02-18 13:38:25,290 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 215 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:25,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 539 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:38:25,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6887 states.
[2022-02-18 13:38:25,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6887 to 5662.
[2022-02-18 13:38:25,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5662 states, 5661 states have (on average 3.2582582582582584) internal successors, (18445), 5661 states have internal predecessors, (18445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:25,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5662 states to 5662 states and 18445 transitions.
[2022-02-18 13:38:25,574 INFO L78 Accepts]: Start accepts. Automaton has 5662 states and 18445 transitions. Word has length 55
[2022-02-18 13:38:25,575 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:25,575 INFO L470 AbstractCegarLoop]: Abstraction has 5662 states and 18445 transitions.
[2022-02-18 13:38:25,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:25,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5662 states and 18445 transitions.
[2022-02-18 13:38:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2022-02-18 13:38:25,586 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:25,587 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]
[2022-02-18 13:38:25,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-18 13:38:25,587 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:25,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:25,588 INFO L85 PathProgramCache]: Analyzing trace with hash -197202132, now seen corresponding path program 1 times
[2022-02-18 13:38:25,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:25,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773009451]
[2022-02-18 13:38:25,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:25,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:25,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:25,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:25,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773009451]
[2022-02-18 13:38:25,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773009451] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:25,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:25,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-18 13:38:25,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72122609]
[2022-02-18 13:38:25,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:25,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-18 13:38:25,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:25,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-18 13:38:25,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-02-18 13:38:25,783 INFO L87 Difference]: Start difference. First operand 5662 states and 18445 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:26,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:26,030 INFO L93 Difference]: Finished difference Result 7752 states and 25002 transitions.
[2022-02-18 13:38:26,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2022-02-18 13:38:26,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57
[2022-02-18 13:38:26,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:26,056 INFO L225 Difference]: With dead ends: 7752
[2022-02-18 13:38:26,056 INFO L226 Difference]: Without dead ends: 5277
[2022-02-18 13:38:26,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2022-02-18 13:38:26,057 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 231 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:26,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 517 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:26,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5277 states.
[2022-02-18 13:38:26,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5277 to 4157.
[2022-02-18 13:38:26,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4157 states, 4156 states have (on average 3.2309913378248316) internal successors, (13428), 4156 states have internal predecessors, (13428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:26,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4157 states to 4157 states and 13428 transitions.
[2022-02-18 13:38:26,237 INFO L78 Accepts]: Start accepts. Automaton has 4157 states and 13428 transitions. Word has length 57
[2022-02-18 13:38:26,237 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:26,238 INFO L470 AbstractCegarLoop]: Abstraction has 4157 states and 13428 transitions.
[2022-02-18 13:38:26,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:26,239 INFO L276 IsEmpty]: Start isEmpty. Operand 4157 states and 13428 transitions.
[2022-02-18 13:38:26,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2022-02-18 13:38:26,248 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:26,248 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]
[2022-02-18 13:38:26,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-18 13:38:26,248 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:26,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:26,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1835452839, now seen corresponding path program 1 times
[2022-02-18 13:38:26,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:26,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121267704]
[2022-02-18 13:38:26,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:26,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:26,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:26,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:26,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121267704]
[2022-02-18 13:38:26,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121267704] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:26,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:26,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-18 13:38:26,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063368962]
[2022-02-18 13:38:26,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:26,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-18 13:38:26,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:26,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-18 13:38:26,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-02-18 13:38:26,370 INFO L87 Difference]: Start difference. First operand 4157 states and 13428 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)
[2022-02-18 13:38:26,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:26,657 INFO L93 Difference]: Finished difference Result 6512 states and 20727 transitions.
[2022-02-18 13:38:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2022-02-18 13:38:26,658 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
[2022-02-18 13:38:26,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:26,682 INFO L225 Difference]: With dead ends: 6512
[2022-02-18 13:38:26,682 INFO L226 Difference]: Without dead ends: 5112
[2022-02-18 13:38:26,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342
[2022-02-18 13:38:26,683 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 242 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:26,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 532 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:38:26,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5112 states.
[2022-02-18 13:38:26,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5112 to 3797.
[2022-02-18 13:38:26,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3797 states, 3796 states have (on average 3.196522655426765) internal successors, (12134), 3796 states have internal predecessors, (12134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:26,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 12134 transitions.
[2022-02-18 13:38:26,807 INFO L78 Accepts]: Start accepts. Automaton has 3797 states and 12134 transitions. Word has length 60
[2022-02-18 13:38:26,808 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:26,808 INFO L470 AbstractCegarLoop]: Abstraction has 3797 states and 12134 transitions.
[2022-02-18 13:38:26,808 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)
[2022-02-18 13:38:26,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3797 states and 12134 transitions.
[2022-02-18 13:38:26,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2022-02-18 13:38:26,818 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:26,818 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]
[2022-02-18 13:38:26,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-18 13:38:26,818 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:26,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:26,819 INFO L85 PathProgramCache]: Analyzing trace with hash -2051135702, now seen corresponding path program 1 times
[2022-02-18 13:38:26,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:26,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137975776]
[2022-02-18 13:38:26,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:26,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:26,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:26,974 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:26,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137975776]
[2022-02-18 13:38:26,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137975776] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:26,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:26,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-18 13:38:26,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505652651]
[2022-02-18 13:38:26,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:26,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-18 13:38:26,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:26,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-18 13:38:26,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-02-18 13:38:26,975 INFO L87 Difference]: Start difference. First operand 3797 states and 12134 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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)
[2022-02-18 13:38:27,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:27,089 INFO L93 Difference]: Finished difference Result 4317 states and 13632 transitions.
[2022-02-18 13:38:27,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-02-18 13:38:27,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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
[2022-02-18 13:38:27,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:27,097 INFO L225 Difference]: With dead ends: 4317
[2022-02-18 13:38:27,098 INFO L226 Difference]: Without dead ends: 2117
[2022-02-18 13:38:27,098 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
[2022-02-18 13:38:27,103 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 155 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:27,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 445 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:27,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states.
[2022-02-18 13:38:27,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 2117.
[2022-02-18 13:38:27,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2116 states have (on average 3.037334593572779) internal successors, (6427), 2116 states have internal predecessors, (6427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:27,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 6427 transitions.
[2022-02-18 13:38:27,150 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 6427 transitions. Word has length 62
[2022-02-18 13:38:27,151 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:27,151 INFO L470 AbstractCegarLoop]: Abstraction has 2117 states and 6427 transitions.
[2022-02-18 13:38:27,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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)
[2022-02-18 13:38:27,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 6427 transitions.
[2022-02-18 13:38:27,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2022-02-18 13:38:27,157 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:27,157 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]
[2022-02-18 13:38:27,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-18 13:38:27,157 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:27,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:27,158 INFO L85 PathProgramCache]: Analyzing trace with hash 116192374, now seen corresponding path program 1 times
[2022-02-18 13:38:27,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:27,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158164844]
[2022-02-18 13:38:27,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:27,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:27,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:27,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:27,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158164844]
[2022-02-18 13:38:27,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158164844] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:27,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:27,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-18 13:38:27,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108880913]
[2022-02-18 13:38:27,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:27,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-18 13:38:27,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:27,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-18 13:38:27,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-02-18 13:38:27,255 INFO L87 Difference]: Start difference. First operand 2117 states and 6427 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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)
[2022-02-18 13:38:27,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:27,311 INFO L93 Difference]: Finished difference Result 3352 states and 10182 transitions.
[2022-02-18 13:38:27,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-02-18 13:38:27,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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
[2022-02-18 13:38:27,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:27,317 INFO L225 Difference]: With dead ends: 3352
[2022-02-18 13:38:27,317 INFO L226 Difference]: Without dead ends: 1847
[2022-02-18 13:38:27,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2022-02-18 13:38:27,319 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 68 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:27,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 480 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:27,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states.
[2022-02-18 13:38:27,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1847.
[2022-02-18 13:38:27,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1846 states have (on average 2.9994582881906826) internal successors, (5537), 1846 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 5537 transitions.
[2022-02-18 13:38:27,360 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 5537 transitions. Word has length 63
[2022-02-18 13:38:27,360 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:27,360 INFO L470 AbstractCegarLoop]: Abstraction has 1847 states and 5537 transitions.
[2022-02-18 13:38:27,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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)
[2022-02-18 13:38:27,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 5537 transitions.
[2022-02-18 13:38:27,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2022-02-18 13:38:27,364 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:27,364 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]
[2022-02-18 13:38:27,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-18 13:38:27,364 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:27,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:27,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1531739210, now seen corresponding path program 2 times
[2022-02-18 13:38:27,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:27,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928902607]
[2022-02-18 13:38:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:27,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:27,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:27,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:27,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928902607]
[2022-02-18 13:38:27,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928902607] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:27,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:27,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-18 13:38:27,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047814948]
[2022-02-18 13:38:27,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:27,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-18 13:38:27,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:27,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-18 13:38:27,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-02-18 13:38:27,463 INFO L87 Difference]: Start difference. First operand 1847 states and 5537 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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)
[2022-02-18 13:38:27,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:27,563 INFO L93 Difference]: Finished difference Result 2107 states and 6256 transitions.
[2022-02-18 13:38:27,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-02-18 13:38:27,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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
[2022-02-18 13:38:27,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:27,567 INFO L225 Difference]: With dead ends: 2107
[2022-02-18 13:38:27,567 INFO L226 Difference]: Without dead ends: 1637
[2022-02-18 13:38:27,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2022-02-18 13:38:27,568 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 116 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:27,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 339 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:27,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states.
[2022-02-18 13:38:27,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1637.
[2022-02-18 13:38:27,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1637 states, 1636 states have (on average 2.946210268948655) internal successors, (4820), 1636 states have internal predecessors, (4820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:27,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1637 states and 4820 transitions.
[2022-02-18 13:38:27,597 INFO L78 Accepts]: Start accepts. Automaton has 1637 states and 4820 transitions. Word has length 63
[2022-02-18 13:38:27,598 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:27,598 INFO L470 AbstractCegarLoop]: Abstraction has 1637 states and 4820 transitions.
[2022-02-18 13:38:27,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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)
[2022-02-18 13:38:27,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1637 states and 4820 transitions.
[2022-02-18 13:38:27,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2022-02-18 13:38:27,601 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:27,601 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]
[2022-02-18 13:38:27,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-18 13:38:27,602 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:27,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:27,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1309981215, now seen corresponding path program 1 times
[2022-02-18 13:38:27,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:27,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075630045]
[2022-02-18 13:38:27,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:27,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:27,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:27,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:27,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075630045]
[2022-02-18 13:38:27,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075630045] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:27,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:27,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-18 13:38:27,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243770407]
[2022-02-18 13:38:27,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:27,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-18 13:38:27,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:27,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-18 13:38:27,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-02-18 13:38:27,673 INFO L87 Difference]: Start difference. First operand 1637 states and 4820 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:27,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:27,753 INFO L93 Difference]: Finished difference Result 1478 states and 4222 transitions.
[2022-02-18 13:38:27,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-02-18 13:38:27,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64
[2022-02-18 13:38:27,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:27,756 INFO L225 Difference]: With dead ends: 1478
[2022-02-18 13:38:27,756 INFO L226 Difference]: Without dead ends: 1133
[2022-02-18 13:38:27,756 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
[2022-02-18 13:38:27,757 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 184 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:27,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 375 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states.
[2022-02-18 13:38:27,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1133.
[2022-02-18 13:38:27,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 1132 states have (on average 2.795053003533569) internal successors, (3164), 1132 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:27,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 3164 transitions.
[2022-02-18 13:38:27,778 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 3164 transitions. Word has length 64
[2022-02-18 13:38:27,778 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:27,778 INFO L470 AbstractCegarLoop]: Abstraction has 1133 states and 3164 transitions.
[2022-02-18 13:38:27,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:27,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 3164 transitions.
[2022-02-18 13:38:27,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2022-02-18 13:38:27,781 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:27,781 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, 1]
[2022-02-18 13:38:27,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-02-18 13:38:27,781 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:27,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:27,782 INFO L85 PathProgramCache]: Analyzing trace with hash 358454578, now seen corresponding path program 1 times
[2022-02-18 13:38:27,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:27,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368856456]
[2022-02-18 13:38:27,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:27,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:27,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:27,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:27,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368856456]
[2022-02-18 13:38:27,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368856456] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:27,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:27,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:38:27,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69081213]
[2022-02-18 13:38:27,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:27,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:38:27,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:27,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:38:27,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:38:27,849 INFO L87 Difference]: Start difference. First operand 1133 states and 3164 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:27,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:27,903 INFO L93 Difference]: Finished difference Result 764 states and 2051 transitions.
[2022-02-18 13:38:27,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:38:27,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 65
[2022-02-18 13:38:27,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:27,903 INFO L225 Difference]: With dead ends: 764
[2022-02-18 13:38:27,903 INFO L226 Difference]: Without dead ends: 0
[2022-02-18 13:38:27,904 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
[2022-02-18 13:38:27,904 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 239 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:27,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 258 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:27,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-02-18 13:38:27,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-02-18 13:38:27,905 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)
[2022-02-18 13:38:27,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-02-18 13:38:27,905 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65
[2022-02-18 13:38:27,905 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:27,906 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-18 13:38:27,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:27,906 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-02-18 13:38:27,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-02-18 13:38:27,908 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining)
[2022-02-18 13:38:27,909 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining)
[2022-02-18 13:38:27,909 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining)
[2022-02-18 13:38:27,909 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining)
[2022-02-18 13:38:27,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-02-18 13:38:27,912 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:38:27,914 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-18 13:38:27,914 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-18 13:38:27,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 01:38:27 BasicIcfg
[2022-02-18 13:38:27,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-18 13:38:27,919 INFO L158 Benchmark]: Toolchain (without parser) took 4724.12ms. Allocated memory was 196.1MB in the beginning and 552.6MB in the end (delta: 356.5MB). Free memory was 146.9MB in the beginning and 330.1MB in the end (delta: -183.2MB). Peak memory consumption was 174.5MB. Max. memory is 8.0GB.
[2022-02-18 13:38:27,919 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory is still 165.4MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-18 13:38:27,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.38ms. Allocated memory is still 196.1MB. Free memory was 146.8MB in the beginning and 165.6MB in the end (delta: -18.8MB). Peak memory consumption was 14.1MB. Max. memory is 8.0GB.
[2022-02-18 13:38:27,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.40ms. Allocated memory is still 196.1MB. Free memory was 165.6MB in the beginning and 163.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-18 13:38:27,920 INFO L158 Benchmark]: Boogie Preprocessor took 15.08ms. Allocated memory is still 196.1MB. Free memory was 163.5MB in the beginning and 162.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-18 13:38:27,920 INFO L158 Benchmark]: RCFGBuilder took 305.33ms. Allocated memory is still 196.1MB. Free memory was 162.2MB in the beginning and 149.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2022-02-18 13:38:27,920 INFO L158 Benchmark]: TraceAbstraction took 4011.77ms. Allocated memory was 196.1MB in the beginning and 552.6MB in the end (delta: 356.5MB). Free memory was 149.3MB in the beginning and 330.1MB in the end (delta: -180.8MB). Peak memory consumption was 177.2MB. Max. memory is 8.0GB.
[2022-02-18 13:38:27,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory is still 165.4MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 359.38ms. Allocated memory is still 196.1MB. Free memory was 146.8MB in the beginning and 165.6MB in the end (delta: -18.8MB). Peak memory consumption was 14.1MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 28.40ms. Allocated memory is still 196.1MB. Free memory was 165.6MB in the beginning and 163.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 15.08ms. Allocated memory is still 196.1MB. Free memory was 163.5MB in the beginning and 162.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 305.33ms. Allocated memory is still 196.1MB. Free memory was 162.2MB in the beginning and 149.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
* TraceAbstraction took 4011.77ms. Allocated memory was 196.1MB in the beginning and 552.6MB in the end (delta: 356.5MB). Free memory was 149.3MB in the beginning and 330.1MB in the end (delta: -180.8MB). Peak memory consumption was 177.2MB. 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, 115 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1450 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1450 mSDsluCounter, 3485 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2771 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 425 IncrementalHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 801 mSDtfsCounter, 425 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6591occurred in iteration=0, InterpolantAutomatonStates: 86, 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, 3660 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 489 NumberOfCodeBlocks, 489 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 481 ConstructedInterpolants, 0 QuantifiedInterpolants, 2067 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!
[2022-02-18 13:38:27,948 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...