/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b09bf87
[2020-10-16 13:49:51,854 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-10-16 13:49:51,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-16 13:49:51,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-16 13:49:51,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-16 13:49:51,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-16 13:49:51,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-16 13:49:51,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-16 13:49:51,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-16 13:49:51,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-10-16 13:49:51,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-16 13:49:51,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-16 13:49:51,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-16 13:49:51,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-16 13:49:51,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-16 13:49:51,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-16 13:49:51,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-16 13:49:51,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-16 13:49:51,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-16 13:49:51,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-16 13:49:51,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-16 13:49:51,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-10-16 13:49:51,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-16 13:49:51,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-16 13:49:51,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-16 13:49:51,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-16 13:49:51,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-16 13:49:51,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-16 13:49:51,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
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[2020-10-16 13:49:51,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-16 13:49:51,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2020-10-16 13:49:51,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-10-16 13:49:51,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-10-16 13:49:51,950 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf
[2020-10-16 13:49:51,972 INFO L113 SettingsManager]: Loading preferences was successful
[2020-10-16 13:49:51,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-16 13:49:51,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-16 13:49:51,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-10-16 13:49:51,974 INFO L138 SettingsManager]: * Use SBE=true
[2020-10-16 13:49:51,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-16 13:49:51,975 INFO L138 SettingsManager]: * sizeof long=4
[2020-10-16 13:49:51,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-10-16 13:49:51,975 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-10-16 13:49:51,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-10-16 13:49:51,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-10-16 13:49:51,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-16 13:49:51,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-10-16 13:49:51,976 INFO L138 SettingsManager]: * sizeof long double=12
[2020-10-16 13:49:51,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-10-16 13:49:51,976 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-10-16 13:49:51,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-10-16 13:49:51,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-16 13:49:51,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-10-16 13:49:51,977 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-10-16 13:49:51,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-10-16 13:49:51,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-16 13:49:51,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-16 13:49:51,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2020-10-16 13:49:51,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-16 13:49:51,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-10-16 13:49:51,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-16 13:49:51,979 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true
[2020-10-16 13:49:51,979 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-10-16 13:49:51,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-16 13:49:51,979 INFO L138 SettingsManager]: * Interpolant automaton=MCR
[2020-10-16 13:49:52,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-16 13:49:52,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-16 13:49:52,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-16 13:49:52,306 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-10-16 13:49:52,308 INFO L275 PluginConnector]: CDTParser initialized
[2020-10-16 13:49:52,310 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i
[2020-10-16 13:49:52,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71170c1dc/97a4590835d54f9182bc77fdc5ea44bb/FLAGa539a0553
[2020-10-16 13:49:52,963 INFO L306 CDTParser]: Found 1 translation units.
[2020-10-16 13:49:52,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i
[2020-10-16 13:49:52,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71170c1dc/97a4590835d54f9182bc77fdc5ea44bb/FLAGa539a0553
[2020-10-16 13:49:53,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71170c1dc/97a4590835d54f9182bc77fdc5ea44bb
[2020-10-16 13:49:53,224 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-16 13:49:53,226 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-10-16 13:49:53,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-16 13:49:53,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-16 13:49:53,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-16 13:49:53,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:49:53" (1/1) ...
[2020-10-16 13:49:53,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a78847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53, skipping insertion in model container
[2020-10-16 13:49:53,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:49:53" (1/1) ...
[2020-10-16 13:49:53,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-10-16 13:49:53,293 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-10-16 13:49:53,705 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-16 13:49:53,717 INFO L203 MainTranslator]: Completed pre-run
[2020-10-16 13:49:53,801 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-16 13:49:53,884 INFO L208 MainTranslator]: Completed translation
[2020-10-16 13:49:53,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53 WrapperNode
[2020-10-16 13:49:53,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-16 13:49:53,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-10-16 13:49:53,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-10-16 13:49:53,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-10-16 13:49:53,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53" (1/1) ...
[2020-10-16 13:49:53,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53" (1/1) ...
[2020-10-16 13:49:53,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-10-16 13:49:53,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-16 13:49:53,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-16 13:49:53,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-10-16 13:49:53,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53" (1/1) ...
[2020-10-16 13:49:53,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53" (1/1) ...
[2020-10-16 13:49:53,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53" (1/1) ...
[2020-10-16 13:49:53,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53" (1/1) ...
[2020-10-16 13:49:53,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53" (1/1) ...
[2020-10-16 13:49:53,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53" (1/1) ...
[2020-10-16 13:49:53,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53" (1/1) ...
[2020-10-16 13:49:53,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-16 13:49:53,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-16 13:49:53,965 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-10-16 13:49:53,965 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-10-16 13:49:53,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/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
[2020-10-16 13:49:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-10-16 13:49:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-10-16 13:49:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-16 13:49:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-16 13:49:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-10-16 13:49:54,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-10-16 13:49:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-10-16 13:49:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-10-16 13:49:54,039 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-10-16 13:49:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-10-16 13:49:54,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-10-16 13:49:54,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-16 13:49:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-16 13:49:54,041 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-10-16 13:49:54,356 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-16 13:49:54,357 INFO L298 CfgBuilder]: Removed 8 assume(true) statements.
[2020-10-16 13:49:54,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:49:54 BoogieIcfgContainer
[2020-10-16 13:49:54,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-16 13:49:54,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-16 13:49:54,361 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-10-16 13:49:54,365 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-10-16 13:49:54,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:49:53" (1/3) ...
[2020-10-16 13:49:54,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785f97be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:49:54, skipping insertion in model container
[2020-10-16 13:49:54,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:53" (2/3) ...
[2020-10-16 13:49:54,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785f97be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:49:54, skipping insertion in model container
[2020-10-16 13:49:54,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:49:54" (3/3) ...
[2020-10-16 13:49:54,369 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc.i
[2020-10-16 13:49:54,381 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-10-16 13:49:54,382 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-16 13:49:54,389 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-16 13:49:54,390 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-10-16 13:49:54,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,425 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,425 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,427 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,427 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,429 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,430 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,435 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,435 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,435 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,441 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,442 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,444 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,445 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:49:54,449 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-10-16 13:49:54,464 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-10-16 13:49:54,484 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-10-16 13:49:54,484 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-10-16 13:49:54,484 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-16 13:49:54,484 INFO L380 AbstractCegarLoop]: Backedges is MCR
[2020-10-16 13:49:54,484 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-16 13:49:54,485 INFO L382 AbstractCegarLoop]: Difference is false
[2020-10-16 13:49:54,485 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-16 13:49:54,485 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-16 13:49:54,498 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2020-10-16 13:49:54,499 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow
[2020-10-16 13:49:54,502 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow
[2020-10-16 13:49:54,504 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow
[2020-10-16 13:49:54,553 INFO L129 PetriNetUnfolder]: 2/67 cut-off events.
[2020-10-16 13:49:54,554 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-10-16 13:49:54,559 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-10-16 13:49:54,562 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260
[2020-10-16 13:49:55,835 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49
[2020-10-16 13:49:56,057 INFO L132 LiptonReduction]: Checked pairs total: 2520
[2020-10-16 13:49:56,058 INFO L134 LiptonReduction]: Total number of compositions: 58
[2020-10-16 13:49:56,065 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow
[2020-10-16 13:49:56,092 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states.
[2020-10-16 13:49:56,094 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states.
[2020-10-16 13:49:56,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-10-16 13:49:56,102 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:49:56,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:49:56,104 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:49:56,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:49:56,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times
[2020-10-16 13:49:56,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:49:56,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649970220]
[2020-10-16 13:49:56,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:49:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:49:56,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:49:56,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649970220]
[2020-10-16 13:49:56,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:49:56,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-10-16 13:49:56,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [897192517]
[2020-10-16 13:49:56,376 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:49:56,379 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:49:56,394 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-10-16 13:49:56,394 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:49:56,398 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:49:56,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 13:49:56,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:49:56,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 13:49:56,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:49:56,414 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states.
[2020-10-16 13:49:56,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:49:56,460 INFO L93 Difference]: Finished difference Result 294 states and 849 transitions.
[2020-10-16 13:49:56,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-10-16 13:49:56,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2020-10-16 13:49:56,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:49:56,478 INFO L225 Difference]: With dead ends: 294
[2020-10-16 13:49:56,478 INFO L226 Difference]: Without dead ends: 230
[2020-10-16 13:49:56,479 INFO L677 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
[2020-10-16 13:49:56,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states.
[2020-10-16 13:49:56,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230.
[2020-10-16 13:49:56,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states.
[2020-10-16 13:49:56,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 641 transitions.
[2020-10-16 13:49:56,557 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 641 transitions. Word has length 8
[2020-10-16 13:49:56,560 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:49:56,561 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 641 transitions.
[2020-10-16 13:49:56,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 13:49:56,561 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 641 transitions.
[2020-10-16 13:49:56,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-10-16 13:49:56,563 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:49:56,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:49:56,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-16 13:49:56,563 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:49:56,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:49:56,564 INFO L82 PathProgramCache]: Analyzing trace with hash 113122264, now seen corresponding path program 1 times
[2020-10-16 13:49:56,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:49:56,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582586901]
[2020-10-16 13:49:56,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:49:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:49:56,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:49:56,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582586901]
[2020-10-16 13:49:56,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:49:56,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-10-16 13:49:56,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1343219235]
[2020-10-16 13:49:56,677 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:49:56,678 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:49:56,681 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions.
[2020-10-16 13:49:56,681 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:49:56,724 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:49:56,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 13:49:56,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:49:56,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 13:49:56,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:49:56,727 INFO L87 Difference]: Start difference. First operand 230 states and 641 transitions. Second operand 3 states.
[2020-10-16 13:49:56,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:49:56,736 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions.
[2020-10-16 13:49:56,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-10-16 13:49:56,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9
[2020-10-16 13:49:56,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:49:56,740 INFO L225 Difference]: With dead ends: 202
[2020-10-16 13:49:56,740 INFO L226 Difference]: Without dead ends: 202
[2020-10-16 13:49:56,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:49:56,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2020-10-16 13:49:56,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202.
[2020-10-16 13:49:56,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states.
[2020-10-16 13:49:56,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions.
[2020-10-16 13:49:56,761 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9
[2020-10-16 13:49:56,761 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:49:56,761 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions.
[2020-10-16 13:49:56,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 13:49:56,762 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions.
[2020-10-16 13:49:56,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-10-16 13:49:56,763 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:49:56,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:49:56,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-16 13:49:56,764 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:49:56,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:49:56,764 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times
[2020-10-16 13:49:56,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:49:56,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714989387]
[2020-10-16 13:49:56,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:49:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:49:56,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:49:56,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714989387]
[2020-10-16 13:49:56,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:49:56,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 13:49:56,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1198251951]
[2020-10-16 13:49:56,833 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:49:56,834 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:49:56,836 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions.
[2020-10-16 13:49:56,836 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:49:56,840 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:49:56,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 13:49:56,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:49:56,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 13:49:56,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:49:56,841 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states.
[2020-10-16 13:49:56,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:49:56,865 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions.
[2020-10-16 13:49:56,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-10-16 13:49:56,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10
[2020-10-16 13:49:56,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:49:56,867 INFO L225 Difference]: With dead ends: 266
[2020-10-16 13:49:56,868 INFO L226 Difference]: Without dead ends: 140
[2020-10-16 13:49:56,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:49:56,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states.
[2020-10-16 13:49:56,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140.
[2020-10-16 13:49:56,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states.
[2020-10-16 13:49:56,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions.
[2020-10-16 13:49:56,880 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10
[2020-10-16 13:49:56,880 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:49:56,881 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions.
[2020-10-16 13:49:56,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 13:49:56,881 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions.
[2020-10-16 13:49:56,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-10-16 13:49:56,882 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:49:56,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:49:56,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-16 13:49:56,883 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:49:56,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:49:56,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times
[2020-10-16 13:49:56,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:49:56,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837579715]
[2020-10-16 13:49:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:49:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:49:56,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:49:56,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837579715]
[2020-10-16 13:49:56,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:49:56,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 13:49:56,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1620328842]
[2020-10-16 13:49:56,956 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:49:56,958 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:49:56,960 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions.
[2020-10-16 13:49:56,960 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:49:56,966 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:49:56,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 13:49:56,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:49:56,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 13:49:56,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 13:49:56,967 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states.
[2020-10-16 13:49:57,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:49:57,003 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions.
[2020-10-16 13:49:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-10-16 13:49:57,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11
[2020-10-16 13:49:57,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:49:57,005 INFO L225 Difference]: With dead ends: 165
[2020-10-16 13:49:57,005 INFO L226 Difference]: Without dead ends: 113
[2020-10-16 13:49:57,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-16 13:49:57,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2020-10-16 13:49:57,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113.
[2020-10-16 13:49:57,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states.
[2020-10-16 13:49:57,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions.
[2020-10-16 13:49:57,014 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11
[2020-10-16 13:49:57,014 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:49:57,014 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions.
[2020-10-16 13:49:57,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 13:49:57,014 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions.
[2020-10-16 13:49:57,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 13:49:57,015 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:49:57,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:49:57,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-10-16 13:49:57,016 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:49:57,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:49:57,016 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times
[2020-10-16 13:49:57,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:49:57,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808781194]
[2020-10-16 13:49:57,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:49:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:49:57,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:49:57,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808781194]
[2020-10-16 13:49:57,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:49:57,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 13:49:57,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1080122417]
[2020-10-16 13:49:57,073 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:49:57,074 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:49:57,077 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions.
[2020-10-16 13:49:57,077 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:49:57,089 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2994#(<= ~__unbuffered_cnt~0 0)]
[2020-10-16 13:49:57,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-16 13:49:57,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:49:57,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-16 13:49:57,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-10-16 13:49:57,090 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 6 states.
[2020-10-16 13:49:57,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:49:57,130 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions.
[2020-10-16 13:49:57,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-10-16 13:49:57,131 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12
[2020-10-16 13:49:57,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:49:57,132 INFO L225 Difference]: With dead ends: 111
[2020-10-16 13:49:57,132 INFO L226 Difference]: Without dead ends: 80
[2020-10-16 13:49:57,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2020-10-16 13:49:57,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2020-10-16 13:49:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80.
[2020-10-16 13:49:57,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states.
[2020-10-16 13:49:57,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions.
[2020-10-16 13:49:57,137 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12
[2020-10-16 13:49:57,138 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:49:57,138 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions.
[2020-10-16 13:49:57,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-10-16 13:49:57,138 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions.
[2020-10-16 13:49:57,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-10-16 13:49:57,139 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:49:57,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:49:57,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-10-16 13:49:57,139 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:49:57,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:49:57,140 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times
[2020-10-16 13:49:57,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:49:57,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090756782]
[2020-10-16 13:49:57,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:49:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:49:57,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:49:57,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090756782]
[2020-10-16 13:49:57,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:49:57,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-16 13:49:57,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1762895876]
[2020-10-16 13:49:57,238 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:49:57,239 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:49:57,243 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 36 transitions.
[2020-10-16 13:49:57,243 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:49:57,256 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3274#(<= ~__unbuffered_cnt~0 0)]
[2020-10-16 13:49:57,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-10-16 13:49:57,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:49:57,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-10-16 13:49:57,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-10-16 13:49:57,257 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 7 states.
[2020-10-16 13:49:57,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:49:57,308 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions.
[2020-10-16 13:49:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-10-16 13:49:57,309 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14
[2020-10-16 13:49:57,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:49:57,310 INFO L225 Difference]: With dead ends: 75
[2020-10-16 13:49:57,310 INFO L226 Difference]: Without dead ends: 66
[2020-10-16 13:49:57,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2020-10-16 13:49:57,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2020-10-16 13:49:57,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2020-10-16 13:49:57,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states.
[2020-10-16 13:49:57,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions.
[2020-10-16 13:49:57,315 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14
[2020-10-16 13:49:57,315 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:49:57,315 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions.
[2020-10-16 13:49:57,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-10-16 13:49:57,315 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions.
[2020-10-16 13:49:57,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-10-16 13:49:57,316 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:49:57,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:49:57,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-10-16 13:49:57,317 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:49:57,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:49:57,317 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times
[2020-10-16 13:49:57,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:49:57,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509404979]
[2020-10-16 13:49:57,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:49:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:49:57,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:49:57,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509404979]
[2020-10-16 13:49:57,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:49:57,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 13:49:57,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [855711737]
[2020-10-16 13:49:57,364 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:49:57,366 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:49:57,373 INFO L258 McrAutomatonBuilder]: Finished intersection with 40 states and 57 transitions.
[2020-10-16 13:49:57,373 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:49:57,389 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:49:57,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 13:49:57,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:49:57,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 13:49:57,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 13:49:57,391 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states.
[2020-10-16 13:49:57,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:49:57,410 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions.
[2020-10-16 13:49:57,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-10-16 13:49:57,411 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17
[2020-10-16 13:49:57,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:49:57,411 INFO L225 Difference]: With dead ends: 85
[2020-10-16 13:49:57,412 INFO L226 Difference]: Without dead ends: 48
[2020-10-16 13:49:57,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-16 13:49:57,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2020-10-16 13:49:57,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48.
[2020-10-16 13:49:57,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states.
[2020-10-16 13:49:57,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions.
[2020-10-16 13:49:57,415 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17
[2020-10-16 13:49:57,415 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:49:57,416 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions.
[2020-10-16 13:49:57,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 13:49:57,416 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions.
[2020-10-16 13:49:57,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-10-16 13:49:57,417 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:49:57,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:49:57,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-10-16 13:49:57,417 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:49:57,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:49:57,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times
[2020-10-16 13:49:57,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:49:57,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144062356]
[2020-10-16 13:49:57,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:49:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:49:57,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:49:57,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144062356]
[2020-10-16 13:49:57,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:49:57,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 13:49:57,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1969670107]
[2020-10-16 13:49:57,456 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:49:57,458 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:49:57,465 INFO L258 McrAutomatonBuilder]: Finished intersection with 38 states and 57 transitions.
[2020-10-16 13:49:57,466 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:49:57,503 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:49:57,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 13:49:57,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:49:57,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 13:49:57,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 13:49:57,506 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states.
[2020-10-16 13:49:57,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:49:57,535 INFO L93 Difference]: Finished difference Result 73 states and 130 transitions.
[2020-10-16 13:49:57,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-10-16 13:49:57,536 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17
[2020-10-16 13:49:57,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:49:57,537 INFO L225 Difference]: With dead ends: 73
[2020-10-16 13:49:57,537 INFO L226 Difference]: Without dead ends: 42
[2020-10-16 13:49:57,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-16 13:49:57,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2020-10-16 13:49:57,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2020-10-16 13:49:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states.
[2020-10-16 13:49:57,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions.
[2020-10-16 13:49:57,546 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 17
[2020-10-16 13:49:57,546 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:49:57,546 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 71 transitions.
[2020-10-16 13:49:57,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 13:49:57,547 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions.
[2020-10-16 13:49:57,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-10-16 13:49:57,547 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:49:57,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:49:57,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-10-16 13:49:57,548 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:49:57,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:49:57,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1323635892, now seen corresponding path program 3 times
[2020-10-16 13:49:57,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:49:57,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947109217]
[2020-10-16 13:49:57,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:49:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:49:57,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:49:57,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947109217]
[2020-10-16 13:49:57,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:49:57,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 13:49:57,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1920227527]
[2020-10-16 13:49:57,644 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:49:57,648 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:49:57,654 INFO L258 McrAutomatonBuilder]: Finished intersection with 30 states and 39 transitions.
[2020-10-16 13:49:57,655 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:49:57,707 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:49:57,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 13:49:57,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:49:57,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 13:49:57,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 13:49:57,709 INFO L87 Difference]: Start difference. First operand 42 states and 71 transitions. Second operand 4 states.
[2020-10-16 13:49:57,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:49:57,719 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions.
[2020-10-16 13:49:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-10-16 13:49:57,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17
[2020-10-16 13:49:57,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:49:57,719 INFO L225 Difference]: With dead ends: 41
[2020-10-16 13:49:57,719 INFO L226 Difference]: Without dead ends: 0
[2020-10-16 13:49:57,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-16 13:49:57,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-10-16 13:49:57,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-10-16 13:49:57,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-10-16 13:49:57,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-10-16 13:49:57,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17
[2020-10-16 13:49:57,721 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:49:57,722 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-10-16 13:49:57,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 13:49:57,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-10-16 13:49:57,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-10-16 13:49:57,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-10-16 13:49:57,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:49:57 BasicIcfg
[2020-10-16 13:49:57,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-16 13:49:57,731 INFO L168 Benchmark]: Toolchain (without parser) took 4504.37 ms. Allocated memory was 146.8 MB in the beginning and 248.5 MB in the end (delta: 101.7 MB). Free memory was 101.1 MB in the beginning and 142.9 MB in the end (delta: -41.8 MB). Peak memory consumption was 59.9 MB. Max. memory is 7.1 GB.
[2020-10-16 13:49:57,732 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB.
[2020-10-16 13:49:57,733 INFO L168 Benchmark]: CACSL2BoogieTranslator took 656.96 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 100.9 MB in the beginning and 159.9 MB in the end (delta: -59.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB.
[2020-10-16 13:49:57,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.30 ms. Allocated memory is still 202.9 MB. Free memory was 159.2 MB in the beginning and 157.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-10-16 13:49:57,740 INFO L168 Benchmark]: Boogie Preprocessor took 27.91 ms. Allocated memory is still 202.9 MB. Free memory was 157.3 MB in the beginning and 156.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
[2020-10-16 13:49:57,740 INFO L168 Benchmark]: RCFGBuilder took 394.54 ms. Allocated memory is still 202.9 MB. Free memory was 156.0 MB in the beginning and 133.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB.
[2020-10-16 13:49:57,742 INFO L168 Benchmark]: TraceAbstraction took 3366.86 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 132.9 MB in the beginning and 142.9 MB in the end (delta: -10.0 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB.
[2020-10-16 13:49:57,754 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 656.96 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 100.9 MB in the beginning and 159.9 MB in the end (delta: -59.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 51.30 ms. Allocated memory is still 202.9 MB. Free memory was 159.2 MB in the beginning and 157.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 27.91 ms. Allocated memory is still 202.9 MB. Free memory was 157.3 MB in the beginning and 156.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 394.54 ms. Allocated memory is still 202.9 MB. Free memory was 156.0 MB in the beginning and 133.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3366.86 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 132.9 MB in the beginning and 142.9 MB in the end (delta: -10.0 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
634 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 36 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 2520 MoverChecksTotal
- 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 172 SDtfs, 127 SDslu, 210 SDs, 0 SdLazy, 123 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 3412 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...