/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/weaver/popl20-bad-threaded-sum-2.wvr.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd
[2022-02-09 00:53:35,872 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-09 00:53:35,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-09 00:53:35,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-09 00:53:35,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-09 00:53:35,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-09 00:53:35,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-09 00:53:35,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-09 00:53:35,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-09 00:53:35,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-09 00:53:35,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-09 00:53:35,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
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[2022-02-09 00:53:35,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-09 00:53:35,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-09 00:53:35,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-09 00:53:35,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-09 00:53:35,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-09 00:53:35,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-09 00:53:35,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-09 00:53:35,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-09 00:53:35,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-09 00:53:35,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-09 00:53:35,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-09 00:53:35,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2022-02-09 00:53:35,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2022-02-09 00:53:35,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-02-09 00:53:35,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-09 00:53:35,977 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
[2022-02-09 00:53:36,002 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-09 00:53:36,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-09 00:53:36,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-09 00:53:36,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-09 00:53:36,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-09 00:53:36,003 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-09 00:53:36,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-09 00:53:36,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-09 00:53:36,004 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-09 00:53:36,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-09 00:53:36,004 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-09 00:53:36,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-09 00:53:36,005 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-09 00:53:36,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-09 00:53:36,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-09 00:53:36,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-09 00:53:36,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-09 00:53:36,005 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-09 00:53:36,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-09 00:53:36,005 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-09 00:53:36,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-09 00:53:36,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-09 00:53:36,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-09 00:53:36,006 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-09 00:53:36,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-09 00:53:36,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 00:53:36,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-09 00:53:36,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-09 00:53:36,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-09 00:53:36,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-09 00:53:36,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-09 00:53:36,007 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-09 00:53:36,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-09 00:53:36,007 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-09 00:53:36,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-09 00:53:36,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-09 00:53:36,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-09 00:53:36,204 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-09 00:53:36,205 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-09 00:53:36,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c
[2022-02-09 00:53:36,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/701115bd0/797293c80c2042cf8d1e590cb997f836/FLAGf514bdeab
[2022-02-09 00:53:36,585 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-09 00:53:36,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c
[2022-02-09 00:53:36,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/701115bd0/797293c80c2042cf8d1e590cb997f836/FLAGf514bdeab
[2022-02-09 00:53:37,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/701115bd0/797293c80c2042cf8d1e590cb997f836
[2022-02-09 00:53:37,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-09 00:53:37,012 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-09 00:53:37,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-09 00:53:37,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-09 00:53:37,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-09 00:53:37,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:53:37" (1/1) ...
[2022-02-09 00:53:37,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a01fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37, skipping insertion in model container
[2022-02-09 00:53:37,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:53:37" (1/1) ...
[2022-02-09 00:53:37,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-09 00:53:37,043 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-09 00:53:37,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2476,2489]
[2022-02-09 00:53:37,190 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-09 00:53:37,195 INFO L203 MainTranslator]: Completed pre-run
[2022-02-09 00:53:37,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2476,2489]
[2022-02-09 00:53:37,208 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-09 00:53:37,217 INFO L208 MainTranslator]: Completed translation
[2022-02-09 00:53:37,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37 WrapperNode
[2022-02-09 00:53:37,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-09 00:53:37,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-09 00:53:37,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-09 00:53:37,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-09 00:53:37,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37" (1/1) ...
[2022-02-09 00:53:37,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37" (1/1) ...
[2022-02-09 00:53:37,260 INFO L137 Inliner]: procedures = 21, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59
[2022-02-09 00:53:37,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-09 00:53:37,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-09 00:53:37,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-09 00:53:37,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-09 00:53:37,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37" (1/1) ...
[2022-02-09 00:53:37,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37" (1/1) ...
[2022-02-09 00:53:37,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37" (1/1) ...
[2022-02-09 00:53:37,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37" (1/1) ...
[2022-02-09 00:53:37,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37" (1/1) ...
[2022-02-09 00:53:37,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37" (1/1) ...
[2022-02-09 00:53:37,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37" (1/1) ...
[2022-02-09 00:53:37,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-09 00:53:37,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-09 00:53:37,288 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-09 00:53:37,288 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-09 00:53:37,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37" (1/1) ...
[2022-02-09 00:53:37,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 00:53:37,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:53:37,315 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)
[2022-02-09 00:53:37,333 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
[2022-02-09 00:53:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-09 00:53:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2022-02-09 00:53:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2022-02-09 00:53:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2022-02-09 00:53:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2022-02-09 00:53:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-09 00:53:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-09 00:53:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-09 00:53:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-02-09 00:53:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-02-09 00:53:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-09 00:53:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-09 00:53:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-02-09 00:53:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-09 00:53:37,340 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-09 00:53:37,394 INFO L234 CfgBuilder]: Building ICFG
[2022-02-09 00:53:37,395 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-09 00:53:37,578 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-09 00:53:37,613 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-09 00:53:37,614 INFO L299 CfgBuilder]: Removed 2 assume(true) statements.
[2022-02-09 00:53:37,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:53:37 BoogieIcfgContainer
[2022-02-09 00:53:37,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-09 00:53:37,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-09 00:53:37,617 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-09 00:53:37,619 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-09 00:53:37,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 12:53:37" (1/3) ...
[2022-02-09 00:53:37,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2111b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:53:37, skipping insertion in model container
[2022-02-09 00:53:37,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:53:37" (2/3) ...
[2022-02-09 00:53:37,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2111b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:53:37, skipping insertion in model container
[2022-02-09 00:53:37,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:53:37" (3/3) ...
[2022-02-09 00:53:37,622 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-threaded-sum-2.wvr.c
[2022-02-09 00:53:37,625 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-09 00:53:37,625 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-09 00:53:37,625 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-09 00:53:37,626 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-09 00:53:37,657 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,658 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,659 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,659 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,659 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,659 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,660 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,660 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,660 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,660 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,660 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,660 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,660 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,660 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,661 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,661 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,661 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,661 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,662 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,662 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,662 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,663 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,663 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,663 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,663 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,664 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,664 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,664 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,664 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,664 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,664 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,664 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,665 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,665 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,665 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,665 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,668 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,669 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,669 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,669 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,669 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,669 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:53:37,679 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2022-02-09 00:53:37,725 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-09 00:53:37,731 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2022-02-09 00:53:37,732 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2022-02-09 00:53:37,749 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 88 transitions, 192 flow
[2022-02-09 00:53:37,798 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 336 states, 335 states have (on average 2.582089552238806) internal successors, (865), 335 states have internal predecessors, (865), 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)
[2022-02-09 00:53:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 336 states, 335 states have (on average 2.582089552238806) internal successors, (865), 335 states have internal predecessors, (865), 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)
[2022-02-09 00:53:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2022-02-09 00:53:37,822 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:53:37,823 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]
[2022-02-09 00:53:37,823 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 00:53:37,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:53:37,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1436780155, now seen corresponding path program 1 times
[2022-02-09 00:53:37,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:53:37,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412906830]
[2022-02-09 00:53:37,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:53:37,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:53:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:53:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:53:37,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:53:37,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412906830]
[2022-02-09 00:53:37,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412906830] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:53:37,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:53:37,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-02-09 00:53:37,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693951626]
[2022-02-09 00:53:38,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:53:38,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-02-09 00:53:38,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:53:38,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-02-09 00:53:38,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-02-09 00:53:38,035 INFO L87 Difference]: Start difference. First operand has 336 states, 335 states have (on average 2.582089552238806) internal successors, (865), 335 states have internal predecessors, (865), 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 2 states, 2 states have (on average 32.0) internal successors, (64), 2 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)
[2022-02-09 00:53:38,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:53:38,089 INFO L93 Difference]: Finished difference Result 336 states and 794 transitions.
[2022-02-09 00:53:38,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-09 00:53:38,091 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 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
[2022-02-09 00:53:38,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:53:38,108 INFO L225 Difference]: With dead ends: 336
[2022-02-09 00:53:38,109 INFO L226 Difference]: Without dead ends: 334
[2022-02-09 00:53:38,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-02-09 00:53:38,113 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 00:53:38,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 00:53:38,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states.
[2022-02-09 00:53:38,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334.
[2022-02-09 00:53:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 333 states have (on average 2.3783783783783785) internal successors, (792), 333 states have internal predecessors, (792), 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)
[2022-02-09 00:53:38,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 792 transitions.
[2022-02-09 00:53:38,180 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 792 transitions. Word has length 64
[2022-02-09 00:53:38,181 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:53:38,181 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 792 transitions.
[2022-02-09 00:53:38,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 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)
[2022-02-09 00:53:38,181 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 792 transitions.
[2022-02-09 00:53:38,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2022-02-09 00:53:38,183 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:53:38,183 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]
[2022-02-09 00:53:38,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-09 00:53:38,184 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 00:53:38,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:53:38,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1759613989, now seen corresponding path program 1 times
[2022-02-09 00:53:38,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:53:38,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247562200]
[2022-02-09 00:53:38,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:53:38,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:53:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:53:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:53:38,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:53:38,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247562200]
[2022-02-09 00:53:38,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247562200] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:53:38,477 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:53:38,477 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 00:53:38,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127426492]
[2022-02-09 00:53:38,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:53:38,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-09 00:53:38,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:53:38,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-09 00:53:38,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-02-09 00:53:38,480 INFO L87 Difference]: Start difference. First operand 334 states and 792 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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)
[2022-02-09 00:53:38,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:53:38,607 INFO L93 Difference]: Finished difference Result 481 states and 1212 transitions.
[2022-02-09 00:53:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 00:53:38,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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
[2022-02-09 00:53:38,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:53:38,610 INFO L225 Difference]: With dead ends: 481
[2022-02-09 00:53:38,610 INFO L226 Difference]: Without dead ends: 433
[2022-02-09 00:53:38,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:53:38,611 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 78 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:53:38,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 223 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:53:38,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states.
[2022-02-09 00:53:38,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 377.
[2022-02-09 00:53:38,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 376 states have (on average 2.4627659574468086) internal successors, (926), 376 states have internal predecessors, (926), 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)
[2022-02-09 00:53:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 926 transitions.
[2022-02-09 00:53:38,631 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 926 transitions. Word has length 64
[2022-02-09 00:53:38,631 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:53:38,631 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 926 transitions.
[2022-02-09 00:53:38,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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)
[2022-02-09 00:53:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 926 transitions.
[2022-02-09 00:53:38,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2022-02-09 00:53:38,633 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:53:38,633 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, 1, 1, 1]
[2022-02-09 00:53:38,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-09 00:53:38,633 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 00:53:38,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:53:38,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1477238862, now seen corresponding path program 1 times
[2022-02-09 00:53:38,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:53:38,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066780701]
[2022-02-09 00:53:38,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:53:38,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:53:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:53:39,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:53:39,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:53:39,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066780701]
[2022-02-09 00:53:39,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066780701] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:53:39,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194387357]
[2022-02-09 00:53:39,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:53:39,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:53:39,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:53:39,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:53:39,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-02-09 00:53:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:53:39,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 26 conjunts are in the unsatisfiable core
[2022-02-09 00:53:39,297 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:53:40,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:53:40,230 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:53:41,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:53:41,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194387357] provided 1 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:53:41,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2022-02-09 00:53:41,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [13, 15] total 31
[2022-02-09 00:53:41,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113876302]
[2022-02-09 00:53:41,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:53:41,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2022-02-09 00:53:41,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:53:41,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2022-02-09 00:53:41,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=718, Unknown=0, NotChecked=0, Total=930
[2022-02-09 00:53:41,298 INFO L87 Difference]: Start difference. First operand 377 states and 926 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 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)
[2022-02-09 00:53:42,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:53:42,557 INFO L93 Difference]: Finished difference Result 1227 states and 3160 transitions.
[2022-02-09 00:53:42,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states.
[2022-02-09 00:53:42,558 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 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 68
[2022-02-09 00:53:42,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:53:42,563 INFO L225 Difference]: With dead ends: 1227
[2022-02-09 00:53:42,564 INFO L226 Difference]: Without dead ends: 1116
[2022-02-09 00:53:42,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=431, Invalid=1825, Unknown=0, NotChecked=0, Total=2256
[2022-02-09 00:53:42,566 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 408 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:53:42,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 1085 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 399 Invalid, 0 Unknown, 78 Unchecked, 0.4s Time]
[2022-02-09 00:53:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states.
[2022-02-09 00:53:42,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 445.
[2022-02-09 00:53:42,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 444 states have (on average 2.515765765765766) internal successors, (1117), 444 states have internal predecessors, (1117), 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)
[2022-02-09 00:53:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1117 transitions.
[2022-02-09 00:53:42,587 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1117 transitions. Word has length 68
[2022-02-09 00:53:42,587 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:53:42,587 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 1117 transitions.
[2022-02-09 00:53:42,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 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)
[2022-02-09 00:53:42,588 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1117 transitions.
[2022-02-09 00:53:42,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2022-02-09 00:53:42,589 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:53:42,589 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, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:53:42,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-02-09 00:53:42,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:53:42,808 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 00:53:42,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:53:42,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1846595665, now seen corresponding path program 1 times
[2022-02-09 00:53:42,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:53:42,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815040472]
[2022-02-09 00:53:42,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:53:42,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:53:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:53:43,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:53:43,268 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:53:43,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815040472]
[2022-02-09 00:53:43,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815040472] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:53:43,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497632067]
[2022-02-09 00:53:43,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:53:43,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:53:43,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:53:43,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:53:43,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-02-09 00:53:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:53:43,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 27 conjunts are in the unsatisfiable core
[2022-02-09 00:53:43,401 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:53:44,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:53:44,399 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:53:46,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:53:46,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497632067] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:53:46,825 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:53:46,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 17] total 36
[2022-02-09 00:53:46,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826593857]
[2022-02-09 00:53:46,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:53:46,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states
[2022-02-09 00:53:46,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:53:46,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants.
[2022-02-09 00:53:46,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1023, Unknown=0, NotChecked=0, Total=1260
[2022-02-09 00:53:46,827 INFO L87 Difference]: Start difference. First operand 445 states and 1117 transitions. Second operand has 36 states, 36 states have (on average 4.194444444444445) internal successors, (151), 36 states have internal predecessors, (151), 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)
[2022-02-09 00:54:01,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:54:01,870 INFO L93 Difference]: Finished difference Result 4627 states and 11725 transitions.
[2022-02-09 00:54:01,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states.
[2022-02-09 00:54:01,870 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.194444444444445) internal successors, (151), 36 states have internal predecessors, (151), 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 71
[2022-02-09 00:54:01,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:54:01,882 INFO L225 Difference]: With dead ends: 4627
[2022-02-09 00:54:01,882 INFO L226 Difference]: Without dead ends: 3133
[2022-02-09 00:54:01,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 120 SyntacticMatches, 3 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5035 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=2288, Invalid=12718, Unknown=0, NotChecked=0, Total=15006
[2022-02-09 00:54:01,886 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 2244 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2022-02-09 00:54:01,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2244 Valid, 2100 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1078 Invalid, 0 Unknown, 1 Unchecked, 3.5s Time]
[2022-02-09 00:54:01,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3133 states.
[2022-02-09 00:54:01,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3133 to 867.
[2022-02-09 00:54:01,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 866 states have (on average 2.6547344110854505) internal successors, (2299), 866 states have internal predecessors, (2299), 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)
[2022-02-09 00:54:01,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 2299 transitions.
[2022-02-09 00:54:01,921 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 2299 transitions. Word has length 71
[2022-02-09 00:54:01,922 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:54:01,922 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 2299 transitions.
[2022-02-09 00:54:01,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.194444444444445) internal successors, (151), 36 states have internal predecessors, (151), 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)
[2022-02-09 00:54:01,922 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 2299 transitions.
[2022-02-09 00:54:01,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2022-02-09 00:54:01,924 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:54:01,924 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:54:01,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-02-09 00:54:02,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3
[2022-02-09 00:54:02,129 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 00:54:02,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:54:02,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1244300115, now seen corresponding path program 2 times
[2022-02-09 00:54:02,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:54:02,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556672169]
[2022-02-09 00:54:02,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:54:02,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:54:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:54:02,201 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:54:02,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:54:02,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556672169]
[2022-02-09 00:54:02,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556672169] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:54:02,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:54:02,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 00:54:02,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621442024]
[2022-02-09 00:54:02,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:54:02,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-09 00:54:02,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:54:02,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-09 00:54:02,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2022-02-09 00:54:02,204 INFO L87 Difference]: Start difference. First operand 867 states and 2299 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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)
[2022-02-09 00:54:02,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:54:02,305 INFO L93 Difference]: Finished difference Result 1279 states and 3412 transitions.
[2022-02-09 00:54:02,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 00:54:02,306 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 72
[2022-02-09 00:54:02,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:54:02,311 INFO L225 Difference]: With dead ends: 1279
[2022-02-09 00:54:02,311 INFO L226 Difference]: Without dead ends: 1279
[2022-02-09 00:54:02,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2022-02-09 00:54:02,312 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 69 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:54:02,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 273 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:54:02,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states.
[2022-02-09 00:54:02,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 759.
[2022-02-09 00:54:02,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 758 states have (on average 2.604221635883905) internal successors, (1974), 758 states have internal predecessors, (1974), 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)
[2022-02-09 00:54:02,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1974 transitions.
[2022-02-09 00:54:02,331 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1974 transitions. Word has length 72
[2022-02-09 00:54:02,331 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:54:02,331 INFO L470 AbstractCegarLoop]: Abstraction has 759 states and 1974 transitions.
[2022-02-09 00:54:02,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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)
[2022-02-09 00:54:02,331 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1974 transitions.
[2022-02-09 00:54:02,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2022-02-09 00:54:02,333 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:54:02,333 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:54:02,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-09 00:54:02,333 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 00:54:02,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:54:02,333 INFO L85 PathProgramCache]: Analyzing trace with hash 955660810, now seen corresponding path program 2 times
[2022-02-09 00:54:02,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:54:02,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547829403]
[2022-02-09 00:54:02,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:54:02,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:54:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:54:03,013 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:54:03,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:54:03,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547829403]
[2022-02-09 00:54:03,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547829403] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:54:03,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596399489]
[2022-02-09 00:54:03,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-09 00:54:03,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:54:03,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:54:03,015 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:54:03,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-02-09 00:54:03,122 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 00:54:03,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:54:03,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 28 conjunts are in the unsatisfiable core
[2022-02-09 00:54:03,127 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:54:03,939 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:54:03,939 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:54:05,928 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:54:05,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596399489] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:54:05,928 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:54:05,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 17] total 35
[2022-02-09 00:54:05,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548646556]
[2022-02-09 00:54:05,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:54:05,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states
[2022-02-09 00:54:05,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:54:05,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants.
[2022-02-09 00:54:05,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=992, Unknown=0, NotChecked=0, Total=1190
[2022-02-09 00:54:05,930 INFO L87 Difference]: Start difference. First operand 759 states and 1974 transitions. Second operand has 35 states, 35 states have (on average 4.685714285714286) internal successors, (164), 35 states have internal predecessors, (164), 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)
[2022-02-09 00:54:17,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:54:17,429 INFO L93 Difference]: Finished difference Result 3561 states and 9282 transitions.
[2022-02-09 00:54:17,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states.
[2022-02-09 00:54:17,429 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.685714285714286) internal successors, (164), 35 states have internal predecessors, (164), 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 74
[2022-02-09 00:54:17,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:54:17,439 INFO L225 Difference]: With dead ends: 3561
[2022-02-09 00:54:17,439 INFO L226 Difference]: Without dead ends: 2976
[2022-02-09 00:54:17,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 125 SyntacticMatches, 4 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2852 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=1486, Invalid=7826, Unknown=0, NotChecked=0, Total=9312
[2022-02-09 00:54:17,442 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 1375 mSDsluCounter, 3004 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:54:17,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 2922 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2022-02-09 00:54:17,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states.
[2022-02-09 00:54:17,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1047.
[2022-02-09 00:54:17,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1046 states have (on average 2.6873804971319313) internal successors, (2811), 1046 states have internal predecessors, (2811), 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)
[2022-02-09 00:54:17,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 2811 transitions.
[2022-02-09 00:54:17,476 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 2811 transitions. Word has length 74
[2022-02-09 00:54:17,477 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:54:17,477 INFO L470 AbstractCegarLoop]: Abstraction has 1047 states and 2811 transitions.
[2022-02-09 00:54:17,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.685714285714286) internal successors, (164), 35 states have internal predecessors, (164), 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)
[2022-02-09 00:54:17,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 2811 transitions.
[2022-02-09 00:54:17,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2022-02-09 00:54:17,481 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:54:17,481 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:54:17,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-02-09 00:54:17,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:54:17,697 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 00:54:17,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:54:17,698 INFO L85 PathProgramCache]: Analyzing trace with hash -2090126194, now seen corresponding path program 3 times
[2022-02-09 00:54:17,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:54:17,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377141094]
[2022-02-09 00:54:17,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:54:17,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:54:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:54:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:54:18,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:54:18,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377141094]
[2022-02-09 00:54:18,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377141094] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:54:18,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844904822]
[2022-02-09 00:54:18,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-09 00:54:18,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:54:18,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:54:18,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:54:18,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-02-09 00:54:18,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2022-02-09 00:54:18,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:54:18,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 28 conjunts are in the unsatisfiable core
[2022-02-09 00:54:18,538 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:54:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:54:19,892 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:54:24,658 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:54:24,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844904822] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:54:24,658 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:54:24,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 39
[2022-02-09 00:54:24,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004899104]
[2022-02-09 00:54:24,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:54:24,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states
[2022-02-09 00:54:24,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:54:24,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants.
[2022-02-09 00:54:24,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1250, Unknown=0, NotChecked=0, Total=1482
[2022-02-09 00:54:24,660 INFO L87 Difference]: Start difference. First operand 1047 states and 2811 transitions. Second operand has 39 states, 39 states have (on average 4.512820512820513) internal successors, (176), 39 states have internal predecessors, (176), 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)
[2022-02-09 00:55:01,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:55:01,233 INFO L93 Difference]: Finished difference Result 3150 states and 8410 transitions.
[2022-02-09 00:55:01,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states.
[2022-02-09 00:55:01,234 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 4.512820512820513) internal successors, (176), 39 states have internal predecessors, (176), 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 74
[2022-02-09 00:55:01,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:55:01,243 INFO L225 Difference]: With dead ends: 3150
[2022-02-09 00:55:01,243 INFO L226 Difference]: Without dead ends: 2691
[2022-02-09 00:55:01,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3607 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=1552, Invalid=9790, Unknown=0, NotChecked=0, Total=11342
[2022-02-09 00:55:01,246 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 1123 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:55:01,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 2499 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time]
[2022-02-09 00:55:01,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states.
[2022-02-09 00:55:01,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 1187.
[2022-02-09 00:55:01,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 1186 states have (on average 2.725126475548061) internal successors, (3232), 1186 states have internal predecessors, (3232), 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)
[2022-02-09 00:55:01,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 3232 transitions.
[2022-02-09 00:55:01,278 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 3232 transitions. Word has length 74
[2022-02-09 00:55:01,278 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:55:01,279 INFO L470 AbstractCegarLoop]: Abstraction has 1187 states and 3232 transitions.
[2022-02-09 00:55:01,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.512820512820513) internal successors, (176), 39 states have internal predecessors, (176), 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)
[2022-02-09 00:55:01,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 3232 transitions.
[2022-02-09 00:55:01,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2022-02-09 00:55:01,283 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:55:01,283 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:55:01,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-02-09 00:55:01,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:55:01,501 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 00:55:01,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:55:01,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1335703416, now seen corresponding path program 3 times
[2022-02-09 00:55:01,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:55:01,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640223760]
[2022-02-09 00:55:01,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:55:01,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:55:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:55:01,744 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 00:55:01,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:55:01,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640223760]
[2022-02-09 00:55:01,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640223760] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:55:01,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027970008]
[2022-02-09 00:55:01,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-09 00:55:01,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:55:01,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:55:01,746 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:55:01,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-02-09 00:55:01,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2022-02-09 00:55:01,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:55:01,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 34 conjunts are in the unsatisfiable core
[2022-02-09 00:55:01,843 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:55:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:55:02,680 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:55:03,747 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:55:03,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027970008] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:55:03,748 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:55:03,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19, 18] total 39
[2022-02-09 00:55:03,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957800625]
[2022-02-09 00:55:03,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:55:03,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states
[2022-02-09 00:55:03,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:55:03,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants.
[2022-02-09 00:55:03,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=1198, Unknown=0, NotChecked=0, Total=1482
[2022-02-09 00:55:03,750 INFO L87 Difference]: Start difference. First operand 1187 states and 3232 transitions. Second operand has 39 states, 39 states have (on average 4.589743589743589) internal successors, (179), 39 states have internal predecessors, (179), 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)
[2022-02-09 00:55:10,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:55:10,527 INFO L93 Difference]: Finished difference Result 3934 states and 10604 transitions.
[2022-02-09 00:55:10,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states.
[2022-02-09 00:55:10,527 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 4.589743589743589) internal successors, (179), 39 states have internal predecessors, (179), 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 76
[2022-02-09 00:55:10,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:55:10,540 INFO L225 Difference]: With dead ends: 3934
[2022-02-09 00:55:10,540 INFO L226 Difference]: Without dead ends: 3505
[2022-02-09 00:55:10,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 140 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3578 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=2246, Invalid=9310, Unknown=0, NotChecked=0, Total=11556
[2022-02-09 00:55:10,544 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 1326 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 1644 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 2974 SdHoareTripleChecker+Invalid, 1918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 109 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:55:10,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1326 Valid, 2974 Invalid, 1918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1644 Invalid, 0 Unknown, 109 Unchecked, 2.4s Time]
[2022-02-09 00:55:10,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3505 states.
[2022-02-09 00:55:10,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3505 to 1331.
[2022-02-09 00:55:10,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 1330 states have (on average 2.7518796992481205) internal successors, (3660), 1330 states have internal predecessors, (3660), 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)
[2022-02-09 00:55:10,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 3660 transitions.
[2022-02-09 00:55:10,585 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 3660 transitions. Word has length 76
[2022-02-09 00:55:10,586 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:55:10,586 INFO L470 AbstractCegarLoop]: Abstraction has 1331 states and 3660 transitions.
[2022-02-09 00:55:10,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.589743589743589) internal successors, (179), 39 states have internal predecessors, (179), 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)
[2022-02-09 00:55:10,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 3660 transitions.
[2022-02-09 00:55:10,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2022-02-09 00:55:10,591 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:55:10,591 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:55:10,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-02-09 00:55:10,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:55:10,812 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 00:55:10,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:55:10,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1260039537, now seen corresponding path program 4 times
[2022-02-09 00:55:10,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:55:10,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201692691]
[2022-02-09 00:55:10,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:55:10,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:55:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:55:11,653 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:55:11,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:55:11,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201692691]
[2022-02-09 00:55:11,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201692691] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:55:11,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420347960]
[2022-02-09 00:55:11,654 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-09 00:55:11,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:55:11,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:55:11,655 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:55:11,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-02-09 00:55:11,816 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-09 00:55:11,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:55:11,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 29 conjunts are in the unsatisfiable core
[2022-02-09 00:55:11,822 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:55:13,534 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:55:13,534 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:55:23,056 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:55:23,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420347960] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:55:23,056 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:55:23,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 43
[2022-02-09 00:55:23,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899932289]
[2022-02-09 00:55:23,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:55:23,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states
[2022-02-09 00:55:23,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:55:23,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants.
[2022-02-09 00:55:23,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=1511, Unknown=0, NotChecked=0, Total=1806
[2022-02-09 00:55:23,058 INFO L87 Difference]: Start difference. First operand 1331 states and 3660 transitions. Second operand has 43 states, 43 states have (on average 4.3023255813953485) internal successors, (185), 43 states have internal predecessors, (185), 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)
[2022-02-09 00:56:42,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:56:42,770 INFO L93 Difference]: Finished difference Result 4441 states and 11738 transitions.
[2022-02-09 00:56:42,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states.
[2022-02-09 00:56:42,771 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 4.3023255813953485) internal successors, (185), 43 states have internal predecessors, (185), 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 77
[2022-02-09 00:56:42,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:56:42,783 INFO L225 Difference]: With dead ends: 4441
[2022-02-09 00:56:42,783 INFO L226 Difference]: Without dead ends: 3472
[2022-02-09 00:56:42,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 127 SyntacticMatches, 3 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4067 ImplicationChecksByTransitivity, 75.6s TimeCoverageRelationStatistics Valid=1755, Invalid=11350, Unknown=5, NotChecked=0, Total=13110
[2022-02-09 00:56:42,786 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 1376 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 3463 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time
[2022-02-09 00:56:42,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1376 Valid, 3463 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time]
[2022-02-09 00:56:42,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states.
[2022-02-09 00:56:42,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 1675.
[2022-02-09 00:56:42,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1674 states have (on average 2.792712066905615) internal successors, (4675), 1674 states have internal predecessors, (4675), 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)
[2022-02-09 00:56:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 4675 transitions.
[2022-02-09 00:56:42,827 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 4675 transitions. Word has length 77
[2022-02-09 00:56:42,827 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:56:42,827 INFO L470 AbstractCegarLoop]: Abstraction has 1675 states and 4675 transitions.
[2022-02-09 00:56:42,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 4.3023255813953485) internal successors, (185), 43 states have internal predecessors, (185), 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)
[2022-02-09 00:56:42,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 4675 transitions.
[2022-02-09 00:56:42,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2022-02-09 00:56:42,831 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:56:42,831 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:56:42,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2022-02-09 00:56:43,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:56:43,048 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 00:56:43,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:56:43,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1044628751, now seen corresponding path program 5 times
[2022-02-09 00:56:43,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:56:43,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483488706]
[2022-02-09 00:56:43,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:56:43,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:56:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:56:45,118 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:56:45,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:56:45,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483488706]
[2022-02-09 00:56:45,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483488706] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:56:45,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167723274]
[2022-02-09 00:56:45,119 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-09 00:56:45,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:56:45,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:56:45,120 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:56:45,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-02-09 00:56:45,244 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s)
[2022-02-09 00:56:45,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:56:45,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 32 conjunts are in the unsatisfiable core
[2022-02-09 00:56:45,249 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:56:47,177 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:56:47,178 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:56:50,016 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:56:50,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167723274] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:56:50,016 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:56:50,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20, 19] total 44
[2022-02-09 00:56:50,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67802645]
[2022-02-09 00:56:50,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:56:50,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states
[2022-02-09 00:56:50,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:56:50,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants.
[2022-02-09 00:56:50,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=1554, Unknown=0, NotChecked=0, Total=1892
[2022-02-09 00:56:50,018 INFO L87 Difference]: Start difference. First operand 1675 states and 4675 transitions. Second operand has 44 states, 44 states have (on average 3.9318181818181817) internal successors, (173), 44 states have internal predecessors, (173), 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)
[2022-02-09 00:57:10,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-02-09 00:57:34,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:57:34,228 INFO L93 Difference]: Finished difference Result 4824 states and 12912 transitions.
[2022-02-09 00:57:34,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states.
[2022-02-09 00:57:34,229 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 3.9318181818181817) internal successors, (173), 44 states have internal predecessors, (173), 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 77
[2022-02-09 00:57:34,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:57:34,237 INFO L225 Difference]: With dead ends: 4824
[2022-02-09 00:57:34,237 INFO L226 Difference]: Without dead ends: 3744
[2022-02-09 00:57:34,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 124 SyntacticMatches, 5 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5739 ImplicationChecksByTransitivity, 38.0s TimeCoverageRelationStatistics Valid=2625, Invalid=15464, Unknown=1, NotChecked=0, Total=18090
[2022-02-09 00:57:34,240 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 2062 mSDsluCounter, 3593 mSDsCounter, 0 mSdLazyCounter, 1921 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2062 SdHoareTripleChecker+Valid, 3553 SdHoareTripleChecker+Invalid, 2229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 1921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time
[2022-02-09 00:57:34,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2062 Valid, 3553 Invalid, 2229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 1921 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time]
[2022-02-09 00:57:34,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states.
[2022-02-09 00:57:34,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 2015.
[2022-02-09 00:57:34,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 2014 states have (on average 2.7934458788480634) internal successors, (5626), 2014 states have internal predecessors, (5626), 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)
[2022-02-09 00:57:34,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 5626 transitions.
[2022-02-09 00:57:34,283 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 5626 transitions. Word has length 77
[2022-02-09 00:57:34,283 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:57:34,283 INFO L470 AbstractCegarLoop]: Abstraction has 2015 states and 5626 transitions.
[2022-02-09 00:57:34,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.9318181818181817) internal successors, (173), 44 states have internal predecessors, (173), 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)
[2022-02-09 00:57:34,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 5626 transitions.
[2022-02-09 00:57:34,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2022-02-09 00:57:34,287 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:57:34,287 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:57:34,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2022-02-09 00:57:34,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:57:34,504 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 00:57:34,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:57:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1503926061, now seen corresponding path program 6 times
[2022-02-09 00:57:34,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:57:34,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401668501]
[2022-02-09 00:57:34,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:57:34,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:57:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:57:35,075 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:57:35,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:57:35,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401668501]
[2022-02-09 00:57:35,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401668501] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:57:35,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747219971]
[2022-02-09 00:57:35,075 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-09 00:57:35,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:57:35,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:57:35,077 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:57:35,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2022-02-09 00:57:35,266 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s)
[2022-02-09 00:57:35,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:57:35,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 32 conjunts are in the unsatisfiable core
[2022-02-09 00:57:35,269 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:57:37,207 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:57:37,207 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:57:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:57:40,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747219971] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:57:40,994 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:57:40,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21, 19] total 47
[2022-02-09 00:57:40,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943990092]
[2022-02-09 00:57:40,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:57:40,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states
[2022-02-09 00:57:40,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:57:40,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants.
[2022-02-09 00:57:40,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=1814, Unknown=0, NotChecked=0, Total=2162
[2022-02-09 00:57:40,995 INFO L87 Difference]: Start difference. First operand 2015 states and 5626 transitions. Second operand has 47 states, 47 states have (on average 3.6808510638297873) internal successors, (173), 47 states have internal predecessors, (173), 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)
[2022-02-09 00:58:26,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:58:26,405 INFO L93 Difference]: Finished difference Result 5509 states and 14778 transitions.
[2022-02-09 00:58:26,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states.
[2022-02-09 00:58:26,405 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 3.6808510638297873) internal successors, (173), 47 states have internal predecessors, (173), 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 77
[2022-02-09 00:58:26,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:58:26,414 INFO L225 Difference]: With dead ends: 5509
[2022-02-09 00:58:26,414 INFO L226 Difference]: Without dead ends: 4591
[2022-02-09 00:58:26,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 123 SyntacticMatches, 4 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6944 ImplicationChecksByTransitivity, 40.5s TimeCoverageRelationStatistics Valid=2686, Invalid=17906, Unknown=0, NotChecked=0, Total=20592
[2022-02-09 00:58:26,416 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 1978 mSDsluCounter, 3933 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1978 SdHoareTripleChecker+Valid, 3893 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time
[2022-02-09 00:58:26,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1978 Valid, 3893 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 2025 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time]
[2022-02-09 00:58:26,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states.
[2022-02-09 00:58:26,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 2267.
[2022-02-09 00:58:26,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2267 states, 2266 states have (on average 2.820388349514563) internal successors, (6391), 2266 states have internal predecessors, (6391), 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)
[2022-02-09 00:58:26,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 6391 transitions.
[2022-02-09 00:58:26,466 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 6391 transitions. Word has length 77
[2022-02-09 00:58:26,466 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:58:26,466 INFO L470 AbstractCegarLoop]: Abstraction has 2267 states and 6391 transitions.
[2022-02-09 00:58:26,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.6808510638297873) internal successors, (173), 47 states have internal predecessors, (173), 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)
[2022-02-09 00:58:26,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 6391 transitions.
[2022-02-09 00:58:26,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:58:26,471 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:58:26,471 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:58:26,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2022-02-09 00:58:26,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2022-02-09 00:58:26,675 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 00:58:26,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:58:26,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1799553041, now seen corresponding path program 7 times
[2022-02-09 00:58:26,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:58:26,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137198659]
[2022-02-09 00:58:26,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:58:26,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:58:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:58:27,131 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:58:27,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:58:27,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137198659]
[2022-02-09 00:58:27,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137198659] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:58:27,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429566137]
[2022-02-09 00:58:27,132 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-02-09 00:58:27,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:58:27,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:58:27,133 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:58:27,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2022-02-09 00:58:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:58:27,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 38 conjunts are in the unsatisfiable core
[2022-02-09 00:58:27,265 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:58:28,627 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:58:28,627 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:58:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:58:31,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429566137] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:58:31,804 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:58:31,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 23, 21] total 48
[2022-02-09 00:58:31,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223458426]
[2022-02-09 00:58:31,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:58:31,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states
[2022-02-09 00:58:31,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:58:31,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants.
[2022-02-09 00:58:31,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=1908, Unknown=0, NotChecked=0, Total=2256
[2022-02-09 00:58:31,805 INFO L87 Difference]: Start difference. First operand 2267 states and 6391 transitions. Second operand has 48 states, 48 states have (on average 3.9166666666666665) internal successors, (188), 48 states have internal predecessors, (188), 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)
[2022-02-09 01:00:24,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 01:00:24,177 INFO L93 Difference]: Finished difference Result 11050 states and 29057 transitions.
[2022-02-09 01:00:24,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 245 states.
[2022-02-09 01:00:24,178 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.9166666666666665) internal successors, (188), 48 states have internal predecessors, (188), 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 78
[2022-02-09 01:00:24,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 01:00:24,197 INFO L225 Difference]: With dead ends: 11050
[2022-02-09 01:00:24,198 INFO L226 Difference]: Without dead ends: 9550
[2022-02-09 01:00:24,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 274 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30809 ImplicationChecksByTransitivity, 100.3s TimeCoverageRelationStatistics Valid=8662, Invalid=67238, Unknown=0, NotChecked=0, Total=75900
[2022-02-09 01:00:24,203 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 3055 mSDsluCounter, 5944 mSDsCounter, 0 mSdLazyCounter, 3513 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3055 SdHoareTripleChecker+Valid, 5794 SdHoareTripleChecker+Invalid, 4102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 3513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time
[2022-02-09 01:00:24,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3055 Valid, 5794 Invalid, 4102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 3513 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time]
[2022-02-09 01:00:24,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9550 states.
[2022-02-09 01:00:24,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9550 to 3006.
[2022-02-09 01:00:24,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 3005 states have (on average 2.91414309484193) internal successors, (8757), 3005 states have internal predecessors, (8757), 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)
[2022-02-09 01:00:24,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 8757 transitions.
[2022-02-09 01:00:24,312 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 8757 transitions. Word has length 78
[2022-02-09 01:00:24,312 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 01:00:24,312 INFO L470 AbstractCegarLoop]: Abstraction has 3006 states and 8757 transitions.
[2022-02-09 01:00:24,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.9166666666666665) internal successors, (188), 48 states have internal predecessors, (188), 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)
[2022-02-09 01:00:24,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 8757 transitions.
[2022-02-09 01:00:24,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 01:00:24,319 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 01:00:24,319 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 01:00:24,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2022-02-09 01:00:24,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 01:00:24,527 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 01:00:24,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 01:00:24,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1217995345, now seen corresponding path program 8 times
[2022-02-09 01:00:24,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 01:00:24,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733089628]
[2022-02-09 01:00:24,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 01:00:24,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 01:00:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 01:00:25,424 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 01:00:25,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 01:00:25,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733089628]
[2022-02-09 01:00:25,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733089628] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 01:00:25,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889138870]
[2022-02-09 01:00:25,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-09 01:00:25,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 01:00:25,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 01:00:25,426 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 01:00:25,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2022-02-09 01:00:25,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 01:00:25,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 01:00:25,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 32 conjunts are in the unsatisfiable core
[2022-02-09 01:00:25,577 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 01:00:26,912 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 01:00:26,912 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 01:00:30,047 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 01:00:30,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889138870] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 01:00:30,047 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 01:00:30,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 45
[2022-02-09 01:00:30,048 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523460637]
[2022-02-09 01:00:30,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 01:00:30,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2022-02-09 01:00:30,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 01:00:30,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2022-02-09 01:00:30,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=1700, Unknown=0, NotChecked=0, Total=1980
[2022-02-09 01:00:30,049 INFO L87 Difference]: Start difference. First operand 3006 states and 8757 transitions. Second operand has 45 states, 45 states have (on average 3.5555555555555554) internal successors, (160), 45 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 01:01:23,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-02-09 01:01:49,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 01:01:49,041 INFO L93 Difference]: Finished difference Result 8745 states and 23860 transitions.
[2022-02-09 01:01:49,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states.
[2022-02-09 01:01:49,041 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 3.5555555555555554) internal successors, (160), 45 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 01:01:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 01:01:49,064 INFO L225 Difference]: With dead ends: 8745
[2022-02-09 01:01:49,064 INFO L226 Difference]: Without dead ends: 7599
[2022-02-09 01:01:49,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 129 SyntacticMatches, 4 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15427 ImplicationChecksByTransitivity, 64.6s TimeCoverageRelationStatistics Valid=5941, Invalid=36701, Unknown=0, NotChecked=0, Total=42642
[2022-02-09 01:01:49,067 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 2122 mSDsluCounter, 5397 mSDsCounter, 0 mSdLazyCounter, 2918 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 5265 SdHoareTripleChecker+Invalid, 3156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 2918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time
[2022-02-09 01:01:49,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2122 Valid, 5265 Invalid, 3156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 2918 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time]
[2022-02-09 01:01:49,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states.
[2022-02-09 01:01:49,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 3390.
[2022-02-09 01:01:49,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3390 states, 3389 states have (on average 2.93803481853054) internal successors, (9957), 3389 states have internal predecessors, (9957), 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)
[2022-02-09 01:01:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 9957 transitions.
[2022-02-09 01:01:49,147 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 9957 transitions. Word has length 78
[2022-02-09 01:01:49,147 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 01:01:49,147 INFO L470 AbstractCegarLoop]: Abstraction has 3390 states and 9957 transitions.
[2022-02-09 01:01:49,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.5555555555555554) internal successors, (160), 45 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 01:01:49,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 9957 transitions.
[2022-02-09 01:01:49,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 01:01:49,155 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 01:01:49,155 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 01:01:49,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2022-02-09 01:01:49,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2022-02-09 01:01:49,359 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 01:01:49,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 01:01:49,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1762627179, now seen corresponding path program 9 times
[2022-02-09 01:01:49,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 01:01:49,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531101872]
[2022-02-09 01:01:49,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 01:01:49,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 01:01:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 01:01:49,544 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 01:01:49,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 01:01:49,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531101872]
[2022-02-09 01:01:49,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531101872] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 01:01:49,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247788640]
[2022-02-09 01:01:49,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-09 01:01:49,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 01:01:49,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 01:01:49,546 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 01:01:49,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2022-02-09 01:01:49,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2022-02-09 01:01:49,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 01:01:49,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 20 conjunts are in the unsatisfiable core
[2022-02-09 01:01:49,623 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 01:01:50,310 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 01:01:50,310 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 01:01:50,755 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 01:01:50,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247788640] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 01:01:50,756 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 01:01:50,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 13] total 27
[2022-02-09 01:01:50,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257191464]
[2022-02-09 01:01:50,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 01:01:50,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2022-02-09 01:01:50,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 01:01:50,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2022-02-09 01:01:50,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702
[2022-02-09 01:01:50,757 INFO L87 Difference]: Start difference. First operand 3390 states and 9957 transitions. Second operand has 27 states, 27 states have (on average 4.37037037037037) internal successors, (118), 27 states have internal predecessors, (118), 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)
[2022-02-09 01:01:52,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 01:01:52,577 INFO L93 Difference]: Finished difference Result 7769 states and 21823 transitions.
[2022-02-09 01:01:52,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states.
[2022-02-09 01:01:52,577 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.37037037037037) internal successors, (118), 27 states have internal predecessors, (118), 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 78
[2022-02-09 01:01:52,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 01:01:52,591 INFO L225 Difference]: With dead ends: 7769
[2022-02-09 01:01:52,591 INFO L226 Difference]: Without dead ends: 7769
[2022-02-09 01:01:52,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 135 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=441, Invalid=2639, Unknown=0, NotChecked=0, Total=3080
[2022-02-09 01:01:52,592 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 1132 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2022-02-09 01:01:52,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 2244 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2022-02-09 01:01:52,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7769 states.
[2022-02-09 01:01:52,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7769 to 4130.
[2022-02-09 01:01:52,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4130 states, 4129 states have (on average 2.9769920077500607) internal successors, (12292), 4129 states have internal predecessors, (12292), 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)
[2022-02-09 01:01:52,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4130 states to 4130 states and 12292 transitions.
[2022-02-09 01:01:52,688 INFO L78 Accepts]: Start accepts. Automaton has 4130 states and 12292 transitions. Word has length 78
[2022-02-09 01:01:52,688 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 01:01:52,688 INFO L470 AbstractCegarLoop]: Abstraction has 4130 states and 12292 transitions.
[2022-02-09 01:01:52,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.37037037037037) internal successors, (118), 27 states have internal predecessors, (118), 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)
[2022-02-09 01:01:52,688 INFO L276 IsEmpty]: Start isEmpty. Operand 4130 states and 12292 transitions.
[2022-02-09 01:01:52,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 01:01:52,696 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 01:01:52,696 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 01:01:52,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2022-02-09 01:01:52,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2022-02-09 01:01:52,909 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-09 01:01:52,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 01:01:52,910 INFO L85 PathProgramCache]: Analyzing trace with hash 63050411, now seen corresponding path program 10 times
[2022-02-09 01:01:52,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 01:01:52,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514439179]
[2022-02-09 01:01:52,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 01:01:52,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 01:01:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 01:01:53,736 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 01:01:53,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 01:01:53,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514439179]
[2022-02-09 01:01:53,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514439179] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 01:01:53,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383739559]
[2022-02-09 01:01:53,737 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-09 01:01:53,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 01:01:53,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 01:01:53,738 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 01:01:53,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2022-02-09 01:01:53,868 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-09 01:01:53,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 01:01:53,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 35 conjunts are in the unsatisfiable core
[2022-02-09 01:01:53,870 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 01:01:55,605 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 01:01:55,605 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 01:02:02,415 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 01:02:02,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383739559] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 01:02:02,416 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 01:02:02,416 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21, 22] total 51
[2022-02-09 01:02:02,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110845713]
[2022-02-09 01:02:02,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 01:02:02,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states
[2022-02-09 01:02:02,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 01:02:02,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants.
[2022-02-09 01:02:02,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=2194, Unknown=0, NotChecked=0, Total=2550
[2022-02-09 01:02:02,417 INFO L87 Difference]: Start difference. First operand 4130 states and 12292 transitions. Second operand has 51 states, 51 states have (on average 3.549019607843137) internal successors, (181), 51 states have internal predecessors, (181), 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)
Received shutdown request...
[2022-02-09 01:07:53,333 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2022-02-09 01:07:53,333 WARN L244 SmtUtils]: Removed 12 from assertion stack
[2022-02-09 01:07:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states.
[2022-02-09 01:07:53,335 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2022-02-09 01:07:53,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 143 SyntacticMatches, 6 SemanticMatches, 241 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 24020 ImplicationChecksByTransitivity, 322.6s TimeCoverageRelationStatistics Valid=6665, Invalid=52136, Unknown=5, NotChecked=0, Total=58806
[2022-02-09 01:07:53,336 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 1875 mSDsluCounter, 3643 mSDsCounter, 0 mSdLazyCounter, 2890 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1875 SdHoareTripleChecker+Valid, 3796 SdHoareTripleChecker+Invalid, 3524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 2890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 185 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time
[2022-02-09 01:07:53,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1875 Valid, 3796 Invalid, 3524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 2890 Invalid, 0 Unknown, 185 Unchecked, 31.8s Time]
[2022-02-09 01:07:53,337 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2022-02-09 01:07:53,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2022-02-09 01:07:53,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2022-02-09 01:07:53,538 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (4130states) and FLOYD_HOARE automaton (currently 208 states, 51 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 143 for 65ms..
[2022-02-09 01:07:53,539 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining)
[2022-02-09 01:07:53,539 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining)
[2022-02-09 01:07:53,541 INFO L732 BasicCegarLoop]: Path program histogram: [10, 3, 1, 1]
[2022-02-09 01:07:53,542 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-09 01:07:53,542 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-09 01:07:53,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 01:07:53 BasicIcfg
[2022-02-09 01:07:53,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-09 01:07:53,544 INFO L158 Benchmark]: Toolchain (without parser) took 856533.15ms. Allocated memory was 198.2MB in the beginning and 402.7MB in the end (delta: 204.5MB). Free memory was 148.0MB in the beginning and 166.4MB in the end (delta: -18.3MB). Peak memory consumption was 187.1MB. Max. memory is 8.0GB.
[2022-02-09 01:07:53,544 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory was 164.3MB in the beginning and 164.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-02-09 01:07:53,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.11ms. Allocated memory is still 198.2MB. Free memory was 147.9MB in the beginning and 173.2MB in the end (delta: -25.3MB). Peak memory consumption was 13.1MB. Max. memory is 8.0GB.
[2022-02-09 01:07:53,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.97ms. Allocated memory is still 198.2MB. Free memory was 173.2MB in the beginning and 171.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-09 01:07:53,545 INFO L158 Benchmark]: Boogie Preprocessor took 26.45ms. Allocated memory is still 198.2MB. Free memory was 171.8MB in the beginning and 170.6MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-09 01:07:53,545 INFO L158 Benchmark]: RCFGBuilder took 327.77ms. Allocated memory is still 198.2MB. Free memory was 170.5MB in the beginning and 157.1MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
[2022-02-09 01:07:53,545 INFO L158 Benchmark]: TraceAbstraction took 855927.01ms. Allocated memory was 198.2MB in the beginning and 402.7MB in the end (delta: 204.5MB). Free memory was 156.4MB in the beginning and 166.4MB in the end (delta: -9.9MB). Peak memory consumption was 194.9MB. Max. memory is 8.0GB.
[2022-02-09 01:07:53,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory was 164.3MB in the beginning and 164.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 205.11ms. Allocated memory is still 198.2MB. Free memory was 147.9MB in the beginning and 173.2MB in the end (delta: -25.3MB). Peak memory consumption was 13.1MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 41.97ms. Allocated memory is still 198.2MB. Free memory was 173.2MB in the beginning and 171.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 26.45ms. Allocated memory is still 198.2MB. Free memory was 171.8MB in the beginning and 170.6MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 327.77ms. Allocated memory is still 198.2MB. Free memory was 170.5MB in the beginning and 157.1MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
* TraceAbstraction took 855927.01ms. Allocated memory was 198.2MB in the beginning and 402.7MB in the end (delta: 204.5MB). Free memory was 156.4MB in the beginning and 166.4MB in the end (delta: -9.9MB). Peak memory consumption was 194.9MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction)
Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4130states) and FLOYD_HOARE automaton (currently 208 states, 51 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 143 for 65ms..
- TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction)
Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (4130states) and FLOYD_HOARE automaton (currently 208 states, 51 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 143 for 65ms..
- TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction)
Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (4130states) and FLOYD_HOARE automaton (currently 208 states, 51 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 143 for 65ms..
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 100 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 855.8s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.1s, AutomataDifference: 785.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20223 SdHoareTripleChecker+Valid, 114.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20223 mSDsluCounter, 40150 SdHoareTripleChecker+Invalid, 110.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 373 IncrementalHoareTripleChecker+Unchecked, 40366 mSDsCounter, 2790 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22230 IncrementalHoareTripleChecker+Invalid, 25393 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2790 mSolverCounterUnsat, 2220 mSDtfsCounter, 22230 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3236 GetRequests, 1541 SyntacticMatches, 46 SemanticMatches, 1648 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 103760 ImplicationChecksByTransitivity, 700.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4130occurred in iteration=14, InterpolantAutomatonStates: 1189, 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, 14 MinimizatonAttempts, 29362 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 65.1s InterpolantComputationTime, 2012 NumberOfCodeBlocks, 2012 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 2879 ConstructedInterpolants, 28 QuantifiedInterpolants, 79068 SizeOfPredicates, 182 NumberOfNonLiveVariables, 2026 ConjunctsInSsa, 361 ConjunctsInUnsatCore, 39 InterpolantComputations, 4 PerfectInterpolantSequences, 21/345 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown