/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a
[2022-02-18 13:38:13,998 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-18 13:38:14,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-18 13:38:14,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-18 13:38:14,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-18 13:38:14,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-18 13:38:14,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-18 13:38:14,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-18 13:38:14,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-18 13:38:14,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-18 13:38:14,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-18 13:38:14,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-18 13:38:14,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-18 13:38:14,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-18 13:38:14,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-18 13:38:14,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-18 13:38:14,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-18 13:38:14,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-18 13:38:14,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-18 13:38:14,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-18 13:38:14,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-18 13:38:14,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-18 13:38:14,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-18 13:38:14,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-18 13:38:14,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-18 13:38:14,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-18 13:38:14,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-18 13:38:14,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-02-18 13:38:14,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-02-18 13:38:14,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-18 13:38:14,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-18 13:38:14,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-18 13:38:14,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2022-02-18 13:38:14,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-18 13:38:14,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-18 13:38:14,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-02-18 13:38:14,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-18 13:38:14,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-02-18 13:38:14,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-18 13:38:14,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf
[2022-02-18 13:38:14,095 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-18 13:38:14,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-18 13:38:14,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-18 13:38:14,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-18 13:38:14,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-18 13:38:14,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-18 13:38:14,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-18 13:38:14,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-18 13:38:14,096 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-18 13:38:14,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-18 13:38:14,096 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-18 13:38:14,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-18 13:38:14,097 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-18 13:38:14,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-18 13:38:14,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-18 13:38:14,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-18 13:38:14,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-18 13:38:14,097 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-18 13:38:14,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-18 13:38:14,097 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-18 13:38:14,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-18 13:38:14,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-18 13:38:14,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-18 13:38:14,097 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-18 13:38:14,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-18 13:38:14,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-18 13:38:14,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-18 13:38:14,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-18 13:38:14,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-18 13:38:14,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-18 13:38:14,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-18 13:38:14,098 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-18 13:38:14,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-18 13:38:14,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-18 13:38:14,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-18 13:38:14,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-18 13:38:14,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-18 13:38:14,290 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-18 13:38:14,290 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-18 13:38:14,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.i
[2022-02-18 13:38:14,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e4d10f2/807e8519398d4d01b7cba823c0f962a6/FLAG41b128fe8
[2022-02-18 13:38:14,693 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-18 13:38:14,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i
[2022-02-18 13:38:14,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e4d10f2/807e8519398d4d01b7cba823c0f962a6/FLAG41b128fe8
[2022-02-18 13:38:15,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e4d10f2/807e8519398d4d01b7cba823c0f962a6
[2022-02-18 13:38:15,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-18 13:38:15,079 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-18 13:38:15,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-18 13:38:15,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-18 13:38:15,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-18 13:38:15,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:38:15" (1/1) ...
[2022-02-18 13:38:15,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a52f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15, skipping insertion in model container
[2022-02-18 13:38:15,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:38:15" (1/1) ...
[2022-02-18 13:38:15,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-18 13:38:15,139 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-18 13:38:15,275 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i[945,958]
[2022-02-18 13:38:15,355 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-18 13:38:15,360 INFO L203 MainTranslator]: Completed pre-run
[2022-02-18 13:38:15,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i[945,958]
[2022-02-18 13:38:15,386 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-18 13:38:15,410 INFO L208 MainTranslator]: Completed translation
[2022-02-18 13:38:15,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15 WrapperNode
[2022-02-18 13:38:15,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-18 13:38:15,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-18 13:38:15,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-18 13:38:15,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-18 13:38:15,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15" (1/1) ...
[2022-02-18 13:38:15,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15" (1/1) ...
[2022-02-18 13:38:15,461 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71
[2022-02-18 13:38:15,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-18 13:38:15,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-18 13:38:15,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-18 13:38:15,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-18 13:38:15,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15" (1/1) ...
[2022-02-18 13:38:15,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15" (1/1) ...
[2022-02-18 13:38:15,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15" (1/1) ...
[2022-02-18 13:38:15,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15" (1/1) ...
[2022-02-18 13:38:15,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15" (1/1) ...
[2022-02-18 13:38:15,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15" (1/1) ...
[2022-02-18 13:38:15,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15" (1/1) ...
[2022-02-18 13:38:15,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-18 13:38:15,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-18 13:38:15,496 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-18 13:38:15,496 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-18 13:38:15,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15" (1/1) ...
[2022-02-18 13:38:15,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-18 13:38:15,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:38:15,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-02-18 13:38:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-18 13:38:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-02-18 13:38:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-18 13:38:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-18 13:38:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-18 13:38:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2022-02-18 13:38:15,570 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2022-02-18 13:38:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2022-02-18 13:38:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2022-02-18 13:38:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2022-02-18 13:38:15,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2022-02-18 13:38:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-18 13:38:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-02-18 13:38:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-18 13:38:15,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-18 13:38:15,573 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-18 13:38:15,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-02-18 13:38:15,675 INFO L234 CfgBuilder]: Building ICFG
[2022-02-18 13:38:15,676 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-18 13:38:15,833 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-18 13:38:15,838 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-18 13:38:15,839 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-18 13:38:15,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:38:15 BoogieIcfgContainer
[2022-02-18 13:38:15,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-18 13:38:15,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-18 13:38:15,842 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-18 13:38:15,845 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-18 13:38:15,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 01:38:15" (1/3) ...
[2022-02-18 13:38:15,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34dbc84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:38:15, skipping insertion in model container
[2022-02-18 13:38:15,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:38:15" (2/3) ...
[2022-02-18 13:38:15,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34dbc84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:38:15, skipping insertion in model container
[2022-02-18 13:38:15,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:38:15" (3/3) ...
[2022-02-18 13:38:15,848 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.i
[2022-02-18 13:38:15,852 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-18 13:38:15,852 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-18 13:38:15,852 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-18 13:38:15,852 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-18 13:38:15,892 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,892 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,893 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,893 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,893 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,893 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,893 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,893 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,894 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,894 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,894 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,895 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,895 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,895 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,895 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,895 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,896 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,896 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,898 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,898 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,899 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,899 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,899 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,899 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,900 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,900 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,900 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,900 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,900 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,900 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,900 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,900 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,901 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,901 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,902 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,903 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,907 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,908 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,908 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,908 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,910 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,910 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,910 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,910 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,911 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,911 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,911 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,911 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:38:15,912 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-02-18 13:38:15,954 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-18 13:38:15,967 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true
[2022-02-18 13:38:15,967 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2022-02-18 13:38:15,982 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 92 transitions, 199 flow
[2022-02-18 13:38:16,245 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:16,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:16,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2022-02-18 13:38:16,299 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:16,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:38:16,300 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:16,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:16,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1402349347, now seen corresponding path program 1 times
[2022-02-18 13:38:16,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:16,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451525890]
[2022-02-18 13:38:16,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:16,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:16,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:16,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:16,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451525890]
[2022-02-18 13:38:16,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451525890] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:16,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:16,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-18 13:38:16,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049556268]
[2022-02-18 13:38:16,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:16,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-18 13:38:16,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:16,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-18 13:38:16,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-02-18 13:38:16,729 INFO L87 Difference]: Start difference. First operand has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:17,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:17,007 INFO L93 Difference]: Finished difference Result 12390 states and 42042 transitions.
[2022-02-18 13:38:17,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-02-18 13:38:17,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55
[2022-02-18 13:38:17,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:17,088 INFO L225 Difference]: With dead ends: 12390
[2022-02-18 13:38:17,088 INFO L226 Difference]: Without dead ends: 8452
[2022-02-18 13:38:17,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2022-02-18 13:38:17,094 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 118 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:17,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 560 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:17,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8452 states.
[2022-02-18 13:38:17,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8452 to 7192.
[2022-02-18 13:38:17,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7192 states, 7191 states have (on average 3.390349047420387) internal successors, (24380), 7191 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:17,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7192 states to 7192 states and 24380 transitions.
[2022-02-18 13:38:17,467 INFO L78 Accepts]: Start accepts. Automaton has 7192 states and 24380 transitions. Word has length 55
[2022-02-18 13:38:17,469 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:17,469 INFO L470 AbstractCegarLoop]: Abstraction has 7192 states and 24380 transitions.
[2022-02-18 13:38:17,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:17,471 INFO L276 IsEmpty]: Start isEmpty. Operand 7192 states and 24380 transitions.
[2022-02-18 13:38:17,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2022-02-18 13:38:17,487 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:17,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:38:17,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-18 13:38:17,488 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:17,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:17,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1439140484, now seen corresponding path program 1 times
[2022-02-18 13:38:17,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:17,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129867034]
[2022-02-18 13:38:17,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:17,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:17,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:17,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:17,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129867034]
[2022-02-18 13:38:17,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129867034] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:17,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:17,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-18 13:38:17,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744595312]
[2022-02-18 13:38:17,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:17,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-18 13:38:17,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:17,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-18 13:38:17,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-02-18 13:38:17,707 INFO L87 Difference]: Start difference. First operand 7192 states and 24380 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:17,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:17,867 INFO L93 Difference]: Finished difference Result 7927 states and 26718 transitions.
[2022-02-18 13:38:17,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-02-18 13:38:17,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57
[2022-02-18 13:38:17,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:17,913 INFO L225 Difference]: With dead ends: 7927
[2022-02-18 13:38:17,913 INFO L226 Difference]: Without dead ends: 6702
[2022-02-18 13:38:17,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2022-02-18 13:38:17,916 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 102 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:17,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 446 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:17,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states.
[2022-02-18 13:38:18,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 6162.
[2022-02-18 13:38:18,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6162 states, 6161 states have (on average 3.3843531894173022) internal successors, (20851), 6161 states have internal predecessors, (20851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6162 states to 6162 states and 20851 transitions.
[2022-02-18 13:38:18,191 INFO L78 Accepts]: Start accepts. Automaton has 6162 states and 20851 transitions. Word has length 57
[2022-02-18 13:38:18,191 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:18,192 INFO L470 AbstractCegarLoop]: Abstraction has 6162 states and 20851 transitions.
[2022-02-18 13:38:18,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:18,192 INFO L276 IsEmpty]: Start isEmpty. Operand 6162 states and 20851 transitions.
[2022-02-18 13:38:18,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2022-02-18 13:38:18,203 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:18,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:38:18,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-18 13:38:18,203 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:18,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:18,204 INFO L85 PathProgramCache]: Analyzing trace with hash -732121668, now seen corresponding path program 1 times
[2022-02-18 13:38:18,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:18,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172930690]
[2022-02-18 13:38:18,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:18,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:18,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:18,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:18,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172930690]
[2022-02-18 13:38:18,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172930690] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:18,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:18,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-18 13:38:18,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521524161]
[2022-02-18 13:38:18,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:18,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-18 13:38:18,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:18,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-18 13:38:18,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-02-18 13:38:18,322 INFO L87 Difference]: Start difference. First operand 6162 states and 20851 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:18,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:18,487 INFO L93 Difference]: Finished difference Result 8212 states and 27482 transitions.
[2022-02-18 13:38:18,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-02-18 13:38:18,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57
[2022-02-18 13:38:18,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:18,503 INFO L225 Difference]: With dead ends: 8212
[2022-02-18 13:38:18,503 INFO L226 Difference]: Without dead ends: 3937
[2022-02-18 13:38:18,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182
[2022-02-18 13:38:18,509 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 187 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:18,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 490 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:18,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3937 states.
[2022-02-18 13:38:18,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3937 to 3937.
[2022-02-18 13:38:18,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3937 states, 3936 states have (on average 3.2347560975609757) internal successors, (12732), 3936 states have internal predecessors, (12732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3937 states to 3937 states and 12732 transitions.
[2022-02-18 13:38:18,661 INFO L78 Accepts]: Start accepts. Automaton has 3937 states and 12732 transitions. Word has length 57
[2022-02-18 13:38:18,661 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:18,661 INFO L470 AbstractCegarLoop]: Abstraction has 3937 states and 12732 transitions.
[2022-02-18 13:38:18,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:18,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3937 states and 12732 transitions.
[2022-02-18 13:38:18,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2022-02-18 13:38:18,669 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:18,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:38:18,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-18 13:38:18,669 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:18,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash -724988951, now seen corresponding path program 1 times
[2022-02-18 13:38:18,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:18,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637602228]
[2022-02-18 13:38:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:18,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:18,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:18,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:18,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637602228]
[2022-02-18 13:38:18,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637602228] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:18,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:18,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-18 13:38:18,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367183344]
[2022-02-18 13:38:18,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:18,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-18 13:38:18,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:18,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-18 13:38:18,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-02-18 13:38:18,761 INFO L87 Difference]: Start difference. First operand 3937 states and 12732 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:18,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:18,856 INFO L93 Difference]: Finished difference Result 4864 states and 15538 transitions.
[2022-02-18 13:38:18,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-02-18 13:38:18,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60
[2022-02-18 13:38:18,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:18,867 INFO L225 Difference]: With dead ends: 4864
[2022-02-18 13:38:18,867 INFO L226 Difference]: Without dead ends: 3594
[2022-02-18 13:38:18,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2022-02-18 13:38:18,868 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 142 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:18,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 354 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:18,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3594 states.
[2022-02-18 13:38:18,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3594 to 3594.
[2022-02-18 13:38:18,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3594 states, 3593 states have (on average 3.187030336765934) internal successors, (11451), 3593 states have internal predecessors, (11451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:18,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 11451 transitions.
[2022-02-18 13:38:18,952 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 11451 transitions. Word has length 60
[2022-02-18 13:38:18,952 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:18,952 INFO L470 AbstractCegarLoop]: Abstraction has 3594 states and 11451 transitions.
[2022-02-18 13:38:18,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:18,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 11451 transitions.
[2022-02-18 13:38:18,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2022-02-18 13:38:18,959 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:18,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:38:18,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-18 13:38:18,959 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:18,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:18,960 INFO L85 PathProgramCache]: Analyzing trace with hash 355246970, now seen corresponding path program 1 times
[2022-02-18 13:38:18,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:18,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591921315]
[2022-02-18 13:38:18,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:18,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:19,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:19,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:19,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591921315]
[2022-02-18 13:38:19,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591921315] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:19,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:19,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-18 13:38:19,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442861759]
[2022-02-18 13:38:19,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:19,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-18 13:38:19,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:19,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-18 13:38:19,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-02-18 13:38:19,034 INFO L87 Difference]: Start difference. First operand 3594 states and 11451 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:19,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:19,137 INFO L93 Difference]: Finished difference Result 3693 states and 11442 transitions.
[2022-02-18 13:38:19,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-02-18 13:38:19,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61
[2022-02-18 13:38:19,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:19,145 INFO L225 Difference]: With dead ends: 3693
[2022-02-18 13:38:19,145 INFO L226 Difference]: Without dead ends: 2628
[2022-02-18 13:38:19,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2022-02-18 13:38:19,146 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 227 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:19,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 395 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:19,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states.
[2022-02-18 13:38:19,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2628.
[2022-02-18 13:38:19,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2628 states, 2627 states have (on average 3.050628092881614) internal successors, (8014), 2627 states have internal predecessors, (8014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:19,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 8014 transitions.
[2022-02-18 13:38:19,224 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 8014 transitions. Word has length 61
[2022-02-18 13:38:19,224 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:19,224 INFO L470 AbstractCegarLoop]: Abstraction has 2628 states and 8014 transitions.
[2022-02-18 13:38:19,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:19,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 8014 transitions.
[2022-02-18 13:38:19,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2022-02-18 13:38:19,229 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:19,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:38:19,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-18 13:38:19,230 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:19,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:19,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1381851845, now seen corresponding path program 1 times
[2022-02-18 13:38:19,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:19,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130212582]
[2022-02-18 13:38:19,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:19,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:19,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:19,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:19,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130212582]
[2022-02-18 13:38:19,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130212582] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:19,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:19,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:38:19,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823865710]
[2022-02-18 13:38:19,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:19,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:38:19,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:19,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:38:19,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:38:19,341 INFO L87 Difference]: Start difference. First operand 2628 states and 8014 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:19,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:19,444 INFO L93 Difference]: Finished difference Result 2142 states and 6340 transitions.
[2022-02-18 13:38:19,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2022-02-18 13:38:19,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63
[2022-02-18 13:38:19,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:19,449 INFO L225 Difference]: With dead ends: 2142
[2022-02-18 13:38:19,449 INFO L226 Difference]: Without dead ends: 1413
[2022-02-18 13:38:19,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2022-02-18 13:38:19,450 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 250 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:19,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 380 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:19,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states.
[2022-02-18 13:38:19,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1365.
[2022-02-18 13:38:19,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1364 states have (on average 2.8673020527859236) internal successors, (3911), 1364 states have internal predecessors, (3911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:19,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 3911 transitions.
[2022-02-18 13:38:19,475 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 3911 transitions. Word has length 63
[2022-02-18 13:38:19,476 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:19,476 INFO L470 AbstractCegarLoop]: Abstraction has 1365 states and 3911 transitions.
[2022-02-18 13:38:19,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:19,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 3911 transitions.
[2022-02-18 13:38:19,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2022-02-18 13:38:19,478 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:38:19,479 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]
[2022-02-18 13:38:19,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-18 13:38:19,479 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 13:38:19,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:38:19,479 INFO L85 PathProgramCache]: Analyzing trace with hash 905035369, now seen corresponding path program 1 times
[2022-02-18 13:38:19,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:38:19,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818552223]
[2022-02-18 13:38:19,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:38:19,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:38:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:38:19,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:38:19,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:38:19,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818552223]
[2022-02-18 13:38:19,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818552223] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:38:19,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:38:19,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-18 13:38:19,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344835160]
[2022-02-18 13:38:19,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:38:19,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-18 13:38:19,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:38:19,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-18 13:38:19,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-02-18 13:38:19,551 INFO L87 Difference]: Start difference. First operand 1365 states and 3911 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:19,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:38:19,626 INFO L93 Difference]: Finished difference Result 1619 states and 4632 transitions.
[2022-02-18 13:38:19,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:38:19,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 67
[2022-02-18 13:38:19,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:38:19,626 INFO L225 Difference]: With dead ends: 1619
[2022-02-18 13:38:19,626 INFO L226 Difference]: Without dead ends: 0
[2022-02-18 13:38:19,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2022-02-18 13:38:19,627 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 121 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:38:19,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 483 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:38:19,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-02-18 13:38:19,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-02-18 13:38:19,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:19,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-02-18 13:38:19,628 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67
[2022-02-18 13:38:19,628 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:38:19,628 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-18 13:38:19,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:38:19,628 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-02-18 13:38:19,628 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-02-18 13:38:19,630 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining)
[2022-02-18 13:38:19,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining)
[2022-02-18 13:38:19,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining)
[2022-02-18 13:38:19,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining)
[2022-02-18 13:38:19,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-02-18 13:38:19,633 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:38:19,635 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-18 13:38:19,635 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-18 13:38:19,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 01:38:19 BasicIcfg
[2022-02-18 13:38:19,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-18 13:38:19,637 INFO L158 Benchmark]: Toolchain (without parser) took 4558.17ms. Allocated memory was 182.5MB in the beginning and 570.4MB in the end (delta: 388.0MB). Free memory was 123.9MB in the beginning and 329.0MB in the end (delta: -205.2MB). Peak memory consumption was 182.7MB. Max. memory is 8.0GB.
[2022-02-18 13:38:19,637 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-18 13:38:19,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.96ms. Allocated memory was 182.5MB in the beginning and 303.0MB in the end (delta: 120.6MB). Free memory was 123.7MB in the beginning and 262.5MB in the end (delta: -138.8MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB.
[2022-02-18 13:38:19,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.02ms. Allocated memory is still 303.0MB. Free memory was 262.5MB in the beginning and 260.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-18 13:38:19,638 INFO L158 Benchmark]: Boogie Preprocessor took 33.17ms. Allocated memory is still 303.0MB. Free memory was 260.4MB in the beginning and 259.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-18 13:38:19,638 INFO L158 Benchmark]: RCFGBuilder took 344.46ms. Allocated memory is still 303.0MB. Free memory was 259.4MB in the beginning and 246.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
[2022-02-18 13:38:19,638 INFO L158 Benchmark]: TraceAbstraction took 3794.92ms. Allocated memory was 303.0MB in the beginning and 570.4MB in the end (delta: 267.4MB). Free memory was 245.8MB in the beginning and 329.0MB in the end (delta: -83.3MB). Peak memory consumption was 185.7MB. Max. memory is 8.0GB.
[2022-02-18 13:38:19,639 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 329.96ms. Allocated memory was 182.5MB in the beginning and 303.0MB in the end (delta: 120.6MB). Free memory was 123.7MB in the beginning and 262.5MB in the end (delta: -138.8MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 50.02ms. Allocated memory is still 303.0MB. Free memory was 262.5MB in the beginning and 260.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 33.17ms. Allocated memory is still 303.0MB. Free memory was 260.4MB in the beginning and 259.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 344.46ms. Allocated memory is still 303.0MB. Free memory was 259.4MB in the beginning and 246.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
* TraceAbstraction took 3794.92ms. Allocated memory was 303.0MB in the beginning and 570.4MB in the end (delta: 267.4MB). Free memory was 245.8MB in the beginning and 329.0MB in the end (delta: -83.3MB). Peak memory consumption was 185.7MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 18]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 7 procedures, 115 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1147 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1147 mSDsluCounter, 3108 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2415 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 355 IncrementalHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 768 mSDtfsCounter, 355 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7192occurred in iteration=1, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 1848 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 420 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 413 ConstructedInterpolants, 0 QuantifiedInterpolants, 1593 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-02-18 13:38:19,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...