/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b09bf87
[2020-10-16 12:11:52,551 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-10-16 12:11:52,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-16 12:11:52,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-16 12:11:52,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-16 12:11:52,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-16 12:11:52,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-16 12:11:52,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
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[2020-10-16 12:11:52,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-16 12:11:52,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-16 12:11:52,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-16 12:11:52,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-16 12:11:52,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-16 12:11:52,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-16 12:11:52,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-16 12:11:52,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-16 12:11:52,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-16 12:11:52,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-16 12:11:52,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-10-16 12:11:52,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-16 12:11:52,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-16 12:11:52,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-16 12:11:52,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-16 12:11:52,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-16 12:11:52,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-16 12:11:52,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-16 12:11:52,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-10-16 12:11:52,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-10-16 12:11:52,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-10-16 12:11:52,675 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.epf
[2020-10-16 12:11:52,715 INFO L113 SettingsManager]: Loading preferences was successful
[2020-10-16 12:11:52,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-16 12:11:52,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-16 12:11:52,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-10-16 12:11:52,717 INFO L138 SettingsManager]: * Use SBE=true
[2020-10-16 12:11:52,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-16 12:11:52,718 INFO L138 SettingsManager]: * sizeof long=4
[2020-10-16 12:11:52,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-10-16 12:11:52,718 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-10-16 12:11:52,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-10-16 12:11:52,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-10-16 12:11:52,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-16 12:11:52,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-10-16 12:11:52,719 INFO L138 SettingsManager]: * sizeof long double=12
[2020-10-16 12:11:52,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-10-16 12:11:52,719 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-10-16 12:11:52,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-10-16 12:11:52,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-16 12:11:52,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-10-16 12:11:52,720 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-10-16 12:11:52,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-10-16 12:11:52,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-16 12:11:52,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-16 12:11:52,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2020-10-16 12:11:52,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-16 12:11:52,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-10-16 12:11:52,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-16 12:11:52,722 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-10-16 12:11:52,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-16 12:11:53,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-16 12:11:53,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-16 12:11:53,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-16 12:11:53,074 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-10-16 12:11:53,076 INFO L275 PluginConnector]: CDTParser initialized
[2020-10-16 12:11:53,077 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i
[2020-10-16 12:11:53,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/661af3e55/909081b99ef140c0af105e8368b0f494/FLAG43b265d27
[2020-10-16 12:11:53,707 INFO L306 CDTParser]: Found 1 translation units.
[2020-10-16 12:11:53,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i
[2020-10-16 12:11:53,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/661af3e55/909081b99ef140c0af105e8368b0f494/FLAG43b265d27
[2020-10-16 12:11:53,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/661af3e55/909081b99ef140c0af105e8368b0f494
[2020-10-16 12:11:53,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-16 12:11:53,981 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-10-16 12:11:53,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-16 12:11:53,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-16 12:11:53,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-16 12:11:53,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:11:53" (1/1) ...
[2020-10-16 12:11:53,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e86d97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:53, skipping insertion in model container
[2020-10-16 12:11:53,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:11:53" (1/1) ...
[2020-10-16 12:11:53,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-10-16 12:11:54,039 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-10-16 12:11:54,473 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-16 12:11:54,486 INFO L203 MainTranslator]: Completed pre-run
[2020-10-16 12:11:54,555 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-16 12:11:54,636 INFO L208 MainTranslator]: Completed translation
[2020-10-16 12:11:54,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:54 WrapperNode
[2020-10-16 12:11:54,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-16 12:11:54,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-10-16 12:11:54,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-10-16 12:11:54,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-10-16 12:11:54,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:54" (1/1) ...
[2020-10-16 12:11:54,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:54" (1/1) ...
[2020-10-16 12:11:54,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-10-16 12:11:54,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-16 12:11:54,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-16 12:11:54,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-10-16 12:11:54,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:54" (1/1) ...
[2020-10-16 12:11:54,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:54" (1/1) ...
[2020-10-16 12:11:54,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:54" (1/1) ...
[2020-10-16 12:11:54,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:54" (1/1) ...
[2020-10-16 12:11:54,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:54" (1/1) ...
[2020-10-16 12:11:54,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:54" (1/1) ...
[2020-10-16 12:11:54,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:54" (1/1) ...
[2020-10-16 12:11:54,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-16 12:11:54,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-16 12:11:54,713 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-10-16 12:11:54,713 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-10-16 12:11:54,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:54" (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 12:11:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-10-16 12:11:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-10-16 12:11:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-16 12:11:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-16 12:11:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-10-16 12:11:54,777 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-10-16 12:11:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-10-16 12:11:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-10-16 12:11:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-10-16 12:11:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-16 12:11:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-16 12:11:54,780 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 12:11:55,114 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-16 12:11:55,114 INFO L298 CfgBuilder]: Removed 8 assume(true) statements.
[2020-10-16 12:11:55,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:11:55 BoogieIcfgContainer
[2020-10-16 12:11:55,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-16 12:11:55,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-16 12:11:55,119 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-10-16 12:11:55,122 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-10-16 12:11:55,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:11:53" (1/3) ...
[2020-10-16 12:11:55,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ddc7230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:11:55, skipping insertion in model container
[2020-10-16 12:11:55,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:54" (2/3) ...
[2020-10-16 12:11:55,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ddc7230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:11:55, skipping insertion in model container
[2020-10-16 12:11:55,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:11:55" (3/3) ...
[2020-10-16 12:11:55,128 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i
[2020-10-16 12:11:55,140 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-10-16 12:11:55,141 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-16 12:11:55,148 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-16 12:11:55,149 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-10-16 12:11:55,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,177 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,179 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,179 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,187 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,188 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,194 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,195 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:11:55,197 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-10-16 12:11:55,211 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2020-10-16 12:11:55,231 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-10-16 12:11:55,231 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-10-16 12:11:55,232 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-16 12:11:55,232 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-16 12:11:55,232 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-16 12:11:55,232 INFO L382 AbstractCegarLoop]: Difference is false
[2020-10-16 12:11:55,232 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-16 12:11:55,233 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-16 12:11:55,245 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2020-10-16 12:11:55,246 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow
[2020-10-16 12:11:55,249 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 55 transitions, 120 flow
[2020-10-16 12:11:55,251 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow
[2020-10-16 12:11:55,291 INFO L129 PetriNetUnfolder]: 2/53 cut-off events.
[2020-10-16 12:11:55,292 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-10-16 12:11:55,296 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place.
[2020-10-16 12:11:55,299 INFO L117 LiptonReduction]: Number of co-enabled transitions 672
[2020-10-16 12:11:56,465 INFO L132 LiptonReduction]: Checked pairs total: 1233
[2020-10-16 12:11:56,465 INFO L134 LiptonReduction]: Total number of compositions: 49
[2020-10-16 12:11:56,473 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow
[2020-10-16 12:11:56,486 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states.
[2020-10-16 12:11:56,489 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states.
[2020-10-16 12:11:56,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2020-10-16 12:11:56,496 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:11:56,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2020-10-16 12:11:56,497 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:11:56,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:11:56,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1785955775, now seen corresponding path program 1 times
[2020-10-16 12:11:56,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:11:56,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818975658]
[2020-10-16 12:11:56,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:11:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:11:56,723 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 12:11:56,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818975658]
[2020-10-16 12:11:56,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:11:56,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-10-16 12:11:56,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386023192]
[2020-10-16 12:11:56,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 12:11:56,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:11:56,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 12:11:56,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 12:11:56,763 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states.
[2020-10-16 12:11:56,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:11:56,801 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions.
[2020-10-16 12:11:56,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-10-16 12:11:56,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6
[2020-10-16 12:11:56,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:11:56,815 INFO L225 Difference]: With dead ends: 72
[2020-10-16 12:11:56,815 INFO L226 Difference]: Without dead ends: 56
[2020-10-16 12:11:56,817 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 12:11:56,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2020-10-16 12:11:56,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2020-10-16 12:11:56,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states.
[2020-10-16 12:11:56,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions.
[2020-10-16 12:11:56,855 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6
[2020-10-16 12:11:56,855 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:11:56,856 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions.
[2020-10-16 12:11:56,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 12:11:56,856 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions.
[2020-10-16 12:11:56,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2020-10-16 12:11:56,857 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:11:56,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:11:56,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-16 12:11:56,857 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:11:56,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:11:56,858 INFO L82 PathProgramCache]: Analyzing trace with hash -469946389, now seen corresponding path program 1 times
[2020-10-16 12:11:56,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:11:56,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276322617]
[2020-10-16 12:11:56,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:11:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:11:56,974 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 12:11:56,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276322617]
[2020-10-16 12:11:56,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:11:56,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:11:56,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825577522]
[2020-10-16 12:11:56,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 12:11:56,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:11:56,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 12:11:56,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 12:11:56,978 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 4 states.
[2020-10-16 12:11:57,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:11:57,011 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions.
[2020-10-16 12:11:57,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-10-16 12:11:57,012 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7
[2020-10-16 12:11:57,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:11:57,013 INFO L225 Difference]: With dead ends: 56
[2020-10-16 12:11:57,013 INFO L226 Difference]: Without dead ends: 40
[2020-10-16 12:11:57,014 INFO L677 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
[2020-10-16 12:11:57,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2020-10-16 12:11:57,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2020-10-16 12:11:57,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states.
[2020-10-16 12:11:57,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions.
[2020-10-16 12:11:57,020 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 7
[2020-10-16 12:11:57,021 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:11:57,021 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions.
[2020-10-16 12:11:57,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 12:11:57,021 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions.
[2020-10-16 12:11:57,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-10-16 12:11:57,022 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:11:57,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:11:57,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-16 12:11:57,022 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:11:57,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:11:57,023 INFO L82 PathProgramCache]: Analyzing trace with hash -658099301, now seen corresponding path program 1 times
[2020-10-16 12:11:57,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:11:57,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342359595]
[2020-10-16 12:11:57,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:11:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:11:57,150 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 12:11:57,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342359595]
[2020-10-16 12:11:57,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:11:57,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 12:11:57,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473552067]
[2020-10-16 12:11:57,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 12:11:57,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:11:57,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 12:11:57,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:11:57,153 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states.
[2020-10-16 12:11:57,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:11:57,194 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions.
[2020-10-16 12:11:57,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-10-16 12:11:57,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9
[2020-10-16 12:11:57,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:11:57,196 INFO L225 Difference]: With dead ends: 35
[2020-10-16 12:11:57,196 INFO L226 Difference]: Without dead ends: 28
[2020-10-16 12:11:57,197 INFO L677 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
[2020-10-16 12:11:57,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2020-10-16 12:11:57,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2020-10-16 12:11:57,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states.
[2020-10-16 12:11:57,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions.
[2020-10-16 12:11:57,201 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9
[2020-10-16 12:11:57,201 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:11:57,201 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions.
[2020-10-16 12:11:57,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 12:11:57,202 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions.
[2020-10-16 12:11:57,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 12:11:57,202 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:11:57,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:11:57,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-16 12:11:57,203 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:11:57,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:11:57,203 INFO L82 PathProgramCache]: Analyzing trace with hash 967414389, now seen corresponding path program 1 times
[2020-10-16 12:11:57,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:11:57,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665436259]
[2020-10-16 12:11:57,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:11:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:11:57,239 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 12:11:57,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665436259]
[2020-10-16 12:11:57,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:11:57,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:11:57,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710615660]
[2020-10-16 12:11:57,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 12:11:57,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:11:57,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 12:11:57,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 12:11:57,241 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 3 states.
[2020-10-16 12:11:57,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:11:57,253 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions.
[2020-10-16 12:11:57,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-10-16 12:11:57,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12
[2020-10-16 12:11:57,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:11:57,254 INFO L225 Difference]: With dead ends: 35
[2020-10-16 12:11:57,254 INFO L226 Difference]: Without dead ends: 16
[2020-10-16 12:11:57,255 INFO L677 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
[2020-10-16 12:11:57,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2020-10-16 12:11:57,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2020-10-16 12:11:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states.
[2020-10-16 12:11:57,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions.
[2020-10-16 12:11:57,257 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12
[2020-10-16 12:11:57,258 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:11:57,258 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions.
[2020-10-16 12:11:57,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 12:11:57,258 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions.
[2020-10-16 12:11:57,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 12:11:57,258 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:11:57,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:11:57,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-10-16 12:11:57,259 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:11:57,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:11:57,260 INFO L82 PathProgramCache]: Analyzing trace with hash -129480839, now seen corresponding path program 2 times
[2020-10-16 12:11:57,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:11:57,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384016982]
[2020-10-16 12:11:57,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:11:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:11:57,295 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 12:11:57,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384016982]
[2020-10-16 12:11:57,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:11:57,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 12:11:57,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122196686]
[2020-10-16 12:11:57,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 12:11:57,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:11:57,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 12:11:57,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 12:11:57,297 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states.
[2020-10-16 12:11:57,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:11:57,309 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions.
[2020-10-16 12:11:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-10-16 12:11:57,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12
[2020-10-16 12:11:57,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:11:57,310 INFO L225 Difference]: With dead ends: 15
[2020-10-16 12:11:57,310 INFO L226 Difference]: Without dead ends: 0
[2020-10-16 12:11:57,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 12:11:57,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-10-16 12:11:57,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-10-16 12:11:57,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-10-16 12:11:57,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-10-16 12:11:57,311 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12
[2020-10-16 12:11:57,311 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:11:57,311 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-10-16 12:11:57,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 12:11:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-10-16 12:11:57,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-10-16 12:11:57,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-10-16 12:11:57,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:11:57 BasicIcfg
[2020-10-16 12:11:57,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-16 12:11:57,319 INFO L168 Benchmark]: Toolchain (without parser) took 3336.87 ms. Allocated memory was 140.5 MB in the beginning and 245.9 MB in the end (delta: 105.4 MB). Free memory was 102.3 MB in the beginning and 165.3 MB in the end (delta: -63.0 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB.
[2020-10-16 12:11:57,319 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-10-16 12:11:57,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.03 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 102.0 MB in the beginning and 159.4 MB in the end (delta: -57.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB.
[2020-10-16 12:11:57,321 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.72 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 157.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB.
[2020-10-16 12:11:57,322 INFO L168 Benchmark]: Boogie Preprocessor took 26.76 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 156.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
[2020-10-16 12:11:57,323 INFO L168 Benchmark]: RCFGBuilder took 404.26 ms. Allocated memory is still 202.4 MB. Free memory was 156.2 MB in the beginning and 136.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB.
[2020-10-16 12:11:57,324 INFO L168 Benchmark]: TraceAbstraction took 2197.76 ms. Allocated memory was 202.4 MB in the beginning and 245.9 MB in the end (delta: 43.5 MB). Free memory was 135.5 MB in the beginning and 165.3 MB in the end (delta: -29.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB.
[2020-10-16 12:11:57,328 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.42 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 655.03 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 102.0 MB in the beginning and 159.4 MB in the end (delta: -57.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 47.72 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 157.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 26.76 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 156.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 404.26 ms. Allocated memory is still 202.4 MB. Free memory was 156.2 MB in the beginning and 136.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2197.76 ms. Allocated memory was 202.4 MB in the beginning and 245.9 MB in the end (delta: 43.5 MB). Free memory was 135.5 MB in the beginning and 165.3 MB in the end (delta: -29.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
365 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 25 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 60 PlacesBefore, 22 PlacesAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 49 TotalNumberOfCompositions, 1233 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 3 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 64 SDtfs, 38 SDslu, 64 SDs, 0 SdLazy, 45 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 891 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...