/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-17 22:01:19,361 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-17 22:01:19,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-17 22:01:19,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-17 22:01:19,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-17 22:01:19,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-17 22:01:19,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-17 22:01:19,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-17 22:01:19,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
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[2020-04-17 22:01:19,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-17 22:01:19,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-17 22:01:19,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-17 22:01:19,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-17 22:01:19,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-17 22:01:19,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-17 22:01:19,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-17 22:01:19,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-17 22:01:19,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-17 22:01:19,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-17 22:01:19,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-17 22:01:19,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-17 22:01:19,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-04-17 22:01:19,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-04-17 22:01:19,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-17 22:01:19,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-04-17 22:01:19,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2020-04-17 22:01:19,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-04-17 22:01:19,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-04-17 22:01:19,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-04-17 22:01:19,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2020-04-17 22:01:19,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-17 22:01:19,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-17 22:01:19,412 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-SemanticLbe.epf
[2020-04-17 22:01:19,428 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-17 22:01:19,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-17 22:01:19,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-17 22:01:19,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-17 22:01:19,431 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-17 22:01:19,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-17 22:01:19,432 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-17 22:01:19,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-17 22:01:19,433 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-17 22:01:19,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-17 22:01:19,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-17 22:01:19,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-17 22:01:19,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-17 22:01:19,434 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-17 22:01:19,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-17 22:01:19,435 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-17 22:01:19,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-17 22:01:19,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-17 22:01:19,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-17 22:01:19,436 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-17 22:01:19,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-17 22:01:19,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-17 22:01:19,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-17 22:01:19,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-17 22:01:19,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-17 22:01:19,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-04-17 22:01:19,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-17 22:01:19,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-17 22:01:19,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-17 22:01:19,742 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-17 22:01:19,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-17 22:01:19,764 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-17 22:01:19,765 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-17 22:01:19,766 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-17 22:01:19,766 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i
[2020-04-17 22:01:19,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d5a3ce5f/c94d1f69fa754550ad5238b9e741210a/FLAG4a3107d96
[2020-04-17 22:01:20,362 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-17 22:01:20,363 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i
[2020-04-17 22:01:20,376 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d5a3ce5f/c94d1f69fa754550ad5238b9e741210a/FLAG4a3107d96
[2020-04-17 22:01:20,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d5a3ce5f/c94d1f69fa754550ad5238b9e741210a
[2020-04-17 22:01:20,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-17 22:01:20,708 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-17 22:01:20,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-17 22:01:20,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-17 22:01:20,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-17 22:01:20,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:01:20" (1/1) ...
[2020-04-17 22:01:20,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc23754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:20, skipping insertion in model container
[2020-04-17 22:01:20,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:01:20" (1/1) ...
[2020-04-17 22:01:20,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-17 22:01:20,783 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-17 22:01:21,275 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-17 22:01:21,285 INFO L203 MainTranslator]: Completed pre-run
[2020-04-17 22:01:21,332 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-17 22:01:21,413 INFO L208 MainTranslator]: Completed translation
[2020-04-17 22:01:21,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:21 WrapperNode
[2020-04-17 22:01:21,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-17 22:01:21,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-17 22:01:21,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-17 22:01:21,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-17 22:01:21,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:21" (1/1) ...
[2020-04-17 22:01:21,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:21" (1/1) ...
[2020-04-17 22:01:21,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-17 22:01:21,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-17 22:01:21,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-17 22:01:21,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-17 22:01:21,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:21" (1/1) ...
[2020-04-17 22:01:21,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:21" (1/1) ...
[2020-04-17 22:01:21,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:21" (1/1) ...
[2020-04-17 22:01:21,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:21" (1/1) ...
[2020-04-17 22:01:21,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:21" (1/1) ...
[2020-04-17 22:01:21,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:21" (1/1) ...
[2020-04-17 22:01:21,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:21" (1/1) ...
[2020-04-17 22:01:21,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-17 22:01:21,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-17 22:01:21,498 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-17 22:01:21,498 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-17 22:01:21,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:21" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-17 22:01:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-17 22:01:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-17 22:01:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-17 22:01:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-17 22:01:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-04-17 22:01:21,570 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-04-17 22:01:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-04-17 22:01:21,570 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-04-17 22:01:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-04-17 22:01:21,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-04-17 22:01:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-17 22:01:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-17 22:01:21,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-17 22:01:21,573 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-04-17 22:01:21,940 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-17 22:01:21,941 INFO L295 CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-17 22:01:21,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:01:21 BoogieIcfgContainer
[2020-04-17 22:01:21,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-17 22:01:21,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-17 22:01:21,950 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-17 22:01:21,953 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-17 22:01:21,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:01:20" (1/3) ...
[2020-04-17 22:01:21,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460930d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:01:21, skipping insertion in model container
[2020-04-17 22:01:21,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:21" (2/3) ...
[2020-04-17 22:01:21,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460930d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:01:21, skipping insertion in model container
[2020-04-17 22:01:21,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:01:21" (3/3) ...
[2020-04-17 22:01:21,957 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i
[2020-04-17 22:01:21,967 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-17 22:01:21,967 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-17 22:01:21,974 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-17 22:01:21,975 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-17 22:01:22,000 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,001 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,001 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,001 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,002 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,002 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,003 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,003 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,003 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,003 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,004 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,004 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,005 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,005 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,005 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,005 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,006 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,006 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,010 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,011 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,011 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,011 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,019 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,020 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,020 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,021 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,024 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,024 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,024 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,024 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:01:22,042 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-17 22:01:22,065 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-17 22:01:22,065 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-17 22:01:22,065 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-17 22:01:22,066 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-17 22:01:22,066 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-17 22:01:22,066 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-17 22:01:22,066 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-17 22:01:22,066 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-17 22:01:22,080 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow
[2020-04-17 22:01:22,082 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow
[2020-04-17 22:01:22,125 INFO L129 PetriNetUnfolder]: 2/66 cut-off events.
[2020-04-17 22:01:22,125 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-17 22:01:22,130 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-04-17 22:01:22,133 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow
[2020-04-17 22:01:22,154 INFO L129 PetriNetUnfolder]: 2/66 cut-off events.
[2020-04-17 22:01:22,154 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-17 22:01:22,155 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-04-17 22:01:22,157 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260
[2020-04-17 22:01:22,158 INFO L170 etLargeBlockEncoding]: Semantic Check.
[2020-04-17 22:01:24,078 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2287
[2020-04-17 22:01:24,079 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56
[2020-04-17 22:01:24,084 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow
[2020-04-17 22:01:24,140 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states.
[2020-04-17 22:01:24,143 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states.
[2020-04-17 22:01:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-17 22:01:24,154 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:01:24,155 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:01:24,155 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:01:24,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:01:24,162 INFO L82 PathProgramCache]: Analyzing trace with hash 573122436, now seen corresponding path program 1 times
[2020-04-17 22:01:24,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:01:24,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173389417]
[2020-04-17 22:01:24,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:01:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:01:24,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:01:24,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173389417]
[2020-04-17 22:01:24,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:01:24,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-17 22:01:24,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810641318]
[2020-04-17 22:01:24,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-17 22:01:24,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:01:24,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-17 22:01:24,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-17 22:01:24,496 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states.
[2020-04-17 22:01:24,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:01:24,548 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions.
[2020-04-17 22:01:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-17 22:01:24,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2020-04-17 22:01:24,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:01:24,567 INFO L225 Difference]: With dead ends: 290
[2020-04-17 22:01:24,567 INFO L226 Difference]: Without dead ends: 226
[2020-04-17 22:01:24,569 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-17 22:01:24,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states.
[2020-04-17 22:01:24,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226.
[2020-04-17 22:01:24,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states.
[2020-04-17 22:01:24,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions.
[2020-04-17 22:01:24,651 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8
[2020-04-17 22:01:24,652 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:01:24,653 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions.
[2020-04-17 22:01:24,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-17 22:01:24,653 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions.
[2020-04-17 22:01:24,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-17 22:01:24,656 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:01:24,656 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:01:24,656 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:01:24,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:01:24,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1327041946, now seen corresponding path program 1 times
[2020-04-17 22:01:24,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:01:24,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626368276]
[2020-04-17 22:01:24,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:01:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:01:24,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:01:24,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626368276]
[2020-04-17 22:01:24,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:01:24,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-17 22:01:24,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599115537]
[2020-04-17 22:01:24,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-17 22:01:24,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:01:24,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-17 22:01:24,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-17 22:01:24,761 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states.
[2020-04-17 22:01:24,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:01:24,771 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions.
[2020-04-17 22:01:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-17 22:01:24,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9
[2020-04-17 22:01:24,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:01:24,775 INFO L225 Difference]: With dead ends: 214
[2020-04-17 22:01:24,775 INFO L226 Difference]: Without dead ends: 214
[2020-04-17 22:01:24,776 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-17 22:01:24,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states.
[2020-04-17 22:01:24,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214.
[2020-04-17 22:01:24,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states.
[2020-04-17 22:01:24,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions.
[2020-04-17 22:01:24,808 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9
[2020-04-17 22:01:24,808 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:01:24,808 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions.
[2020-04-17 22:01:24,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-17 22:01:24,808 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions.
[2020-04-17 22:01:24,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-17 22:01:24,810 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:01:24,812 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:01:24,812 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:01:24,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:01:24,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1811373379, now seen corresponding path program 1 times
[2020-04-17 22:01:24,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:01:24,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359683262]
[2020-04-17 22:01:24,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:01:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:01:24,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:01:24,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359683262]
[2020-04-17 22:01:24,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:01:24,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:01:24,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70599773]
[2020-04-17 22:01:24,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:01:24,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:01:24,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:01:24,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:01:24,907 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states.
[2020-04-17 22:01:24,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:01:24,946 INFO L93 Difference]: Finished difference Result 240 states and 627 transitions.
[2020-04-17 22:01:24,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-04-17 22:01:24,946 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10
[2020-04-17 22:01:24,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:01:24,948 INFO L225 Difference]: With dead ends: 240
[2020-04-17 22:01:24,948 INFO L226 Difference]: Without dead ends: 144
[2020-04-17 22:01:24,949 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:01:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states.
[2020-04-17 22:01:24,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144.
[2020-04-17 22:01:24,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states.
[2020-04-17 22:01:24,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions.
[2020-04-17 22:01:24,961 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 10
[2020-04-17 22:01:24,962 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:01:24,962 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions.
[2020-04-17 22:01:24,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:01:24,962 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions.
[2020-04-17 22:01:24,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-17 22:01:24,963 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:01:24,963 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:01:24,964 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:01:24,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:01:24,965 INFO L82 PathProgramCache]: Analyzing trace with hash 389651423, now seen corresponding path program 1 times
[2020-04-17 22:01:24,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:01:24,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951408324]
[2020-04-17 22:01:24,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:01:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:01:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:01:25,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951408324]
[2020-04-17 22:01:25,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:01:25,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:01:25,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399909367]
[2020-04-17 22:01:25,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:01:25,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:01:25,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:01:25,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:01:25,042 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 4 states.
[2020-04-17 22:01:25,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:01:25,088 INFO L93 Difference]: Finished difference Result 164 states and 374 transitions.
[2020-04-17 22:01:25,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:01:25,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12
[2020-04-17 22:01:25,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:01:25,092 INFO L225 Difference]: With dead ends: 164
[2020-04-17 22:01:25,092 INFO L226 Difference]: Without dead ends: 124
[2020-04-17 22:01:25,092 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:01:25,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states.
[2020-04-17 22:01:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124.
[2020-04-17 22:01:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states.
[2020-04-17 22:01:25,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions.
[2020-04-17 22:01:25,108 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 12
[2020-04-17 22:01:25,108 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:01:25,108 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 281 transitions.
[2020-04-17 22:01:25,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:01:25,109 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions.
[2020-04-17 22:01:25,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-17 22:01:25,113 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:01:25,113 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:01:25,114 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:01:25,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:01:25,114 INFO L82 PathProgramCache]: Analyzing trace with hash -806373780, now seen corresponding path program 1 times
[2020-04-17 22:01:25,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:01:25,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462301016]
[2020-04-17 22:01:25,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:01:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:01:25,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:01:25,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462301016]
[2020-04-17 22:01:25,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:01:25,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 22:01:25,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962100902]
[2020-04-17 22:01:25,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 22:01:25,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:01:25,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 22:01:25,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:01:25,232 INFO L87 Difference]: Start difference. First operand 124 states and 281 transitions. Second operand 5 states.
[2020-04-17 22:01:25,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:01:25,312 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions.
[2020-04-17 22:01:25,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-17 22:01:25,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-04-17 22:01:25,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:01:25,315 INFO L225 Difference]: With dead ends: 122
[2020-04-17 22:01:25,315 INFO L226 Difference]: Without dead ends: 97
[2020-04-17 22:01:25,315 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-04-17 22:01:25,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states.
[2020-04-17 22:01:25,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97.
[2020-04-17 22:01:25,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states.
[2020-04-17 22:01:25,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions.
[2020-04-17 22:01:25,327 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 13
[2020-04-17 22:01:25,327 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:01:25,328 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions.
[2020-04-17 22:01:25,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 22:01:25,328 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions.
[2020-04-17 22:01:25,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-17 22:01:25,332 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:01:25,332 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:01:25,332 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:01:25,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:01:25,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1341104517, now seen corresponding path program 1 times
[2020-04-17 22:01:25,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:01:25,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672805066]
[2020-04-17 22:01:25,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:01:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:01:25,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:01:25,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672805066]
[2020-04-17 22:01:25,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:01:25,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:01:25,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543633133]
[2020-04-17 22:01:25,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-17 22:01:25,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:01:25,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-17 22:01:25,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-17 22:01:25,389 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states.
[2020-04-17 22:01:25,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:01:25,407 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions.
[2020-04-17 22:01:25,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-17 22:01:25,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14
[2020-04-17 22:01:25,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:01:25,409 INFO L225 Difference]: With dead ends: 115
[2020-04-17 22:01:25,409 INFO L226 Difference]: Without dead ends: 98
[2020-04-17 22:01:25,409 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-17 22:01:25,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2020-04-17 22:01:25,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96.
[2020-04-17 22:01:25,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states.
[2020-04-17 22:01:25,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions.
[2020-04-17 22:01:25,415 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14
[2020-04-17 22:01:25,416 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:01:25,416 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions.
[2020-04-17 22:01:25,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-17 22:01:25,416 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions.
[2020-04-17 22:01:25,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-17 22:01:25,420 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:01:25,420 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:01:25,422 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:01:25,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:01:25,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1362110025, now seen corresponding path program 1 times
[2020-04-17 22:01:25,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:01:25,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34745504]
[2020-04-17 22:01:25,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:01:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:01:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:01:25,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34745504]
[2020-04-17 22:01:25,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:01:25,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-17 22:01:25,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672334355]
[2020-04-17 22:01:25,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-04-17 22:01:25,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:01:25,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-17 22:01:25,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-04-17 22:01:25,499 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 6 states.
[2020-04-17 22:01:25,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:01:25,565 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions.
[2020-04-17 22:01:25,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-04-17 22:01:25,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15
[2020-04-17 22:01:25,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:01:25,566 INFO L225 Difference]: With dead ends: 92
[2020-04-17 22:01:25,566 INFO L226 Difference]: Without dead ends: 36
[2020-04-17 22:01:25,567 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2020-04-17 22:01:25,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2020-04-17 22:01:25,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2020-04-17 22:01:25,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states.
[2020-04-17 22:01:25,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions.
[2020-04-17 22:01:25,569 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15
[2020-04-17 22:01:25,570 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:01:25,570 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions.
[2020-04-17 22:01:25,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-04-17 22:01:25,570 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions.
[2020-04-17 22:01:25,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-17 22:01:25,571 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:01:25,571 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:01:25,571 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:01:25,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:01:25,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1202444330, now seen corresponding path program 1 times
[2020-04-17 22:01:25,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:01:25,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761342724]
[2020-04-17 22:01:25,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:01:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:01:25,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:01:25,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761342724]
[2020-04-17 22:01:25,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:01:25,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:01:25,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692136335]
[2020-04-17 22:01:25,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-17 22:01:25,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:01:25,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-17 22:01:25,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-17 22:01:25,609 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states.
[2020-04-17 22:01:25,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:01:25,613 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions.
[2020-04-17 22:01:25,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-17 22:01:25,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17
[2020-04-17 22:01:25,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:01:25,614 INFO L225 Difference]: With dead ends: 35
[2020-04-17 22:01:25,614 INFO L226 Difference]: Without dead ends: 0
[2020-04-17 22:01:25,614 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-17 22:01:25,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-17 22:01:25,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-17 22:01:25,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-17 22:01:25,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-17 22:01:25,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17
[2020-04-17 22:01:25,616 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:01:25,616 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-17 22:01:25,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-17 22:01:25,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-17 22:01:25,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-17 22:01:25,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:01:25 BasicIcfg
[2020-04-17 22:01:25,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-17 22:01:25,623 INFO L168 Benchmark]: Toolchain (without parser) took 4935.59 ms. Allocated memory was 143.1 MB in the beginning and 253.8 MB in the end (delta: 110.6 MB). Free memory was 99.1 MB in the beginning and 182.8 MB in the end (delta: -83.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB.
[2020-04-17 22:01:25,624 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 143.1 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-04-17 22:01:25,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.59 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 97.3 MB in the beginning and 157.2 MB in the end (delta: -59.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
[2020-04-17 22:01:25,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.05 ms. Allocated memory is still 200.8 MB. Free memory was 157.2 MB in the beginning and 155.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
[2020-04-17 22:01:25,626 INFO L168 Benchmark]: Boogie Preprocessor took 26.97 ms. Allocated memory is still 200.8 MB. Free memory was 155.1 MB in the beginning and 153.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-04-17 22:01:25,627 INFO L168 Benchmark]: RCFGBuilder took 450.98 ms. Allocated memory is still 200.8 MB. Free memory was 153.7 MB in the beginning and 132.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
[2020-04-17 22:01:25,628 INFO L168 Benchmark]: TraceAbstraction took 3670.76 ms. Allocated memory was 200.8 MB in the beginning and 253.8 MB in the end (delta: 53.0 MB). Free memory was 131.3 MB in the beginning and 182.8 MB in the end (delta: -51.6 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-04-17 22:01:25,632 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.44 ms. Allocated memory is still 143.1 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 704.59 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 97.3 MB in the beginning and 157.2 MB in the end (delta: -59.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 55.05 ms. Allocated memory is still 200.8 MB. Free memory was 157.2 MB in the beginning and 155.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 26.97 ms. Allocated memory is still 200.8 MB. Free memory was 155.1 MB in the beginning and 153.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 450.98 ms. Allocated memory is still 200.8 MB. Free memory was 153.7 MB in the beginning and 132.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3670.76 ms. Allocated memory was 200.8 MB in the beginning and 253.8 MB in the end (delta: 53.0 MB). Free memory was 131.3 MB in the beginning and 182.8 MB in the end (delta: -51.6 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 1.9s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 657 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2287 CheckedPairsTotal, 56 TotalNumberOfCompositions
- PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 144 SDtfs, 123 SDslu, 169 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2700 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...