/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-18 06:49:06,760 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-18 06:49:06,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-18 06:49:06,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-18 06:49:06,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-18 06:49:06,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-18 06:49:06,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-18 06:49:06,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-18 06:49:06,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-04-18 06:49:06,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-04-18 06:49:06,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-18 06:49:06,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-18 06:49:06,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-18 06:49:06,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-18 06:49:06,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-18 06:49:06,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-18 06:49:06,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-18 06:49:06,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-18 06:49:06,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-18 06:49:06,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-18 06:49:06,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-18 06:49:06,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-18 06:49:06,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-04-18 06:49:06,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-04-18 06:49:06,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-18 06:49:06,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-04-18 06:49:06,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-04-18 06:49:06,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-04-18 06:49:06,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-04-18 06:49:06,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-04-18 06:49:06,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-04-18 06:49:06,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-04-18 06:49:06,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-04-18 06:49:06,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-04-18 06:49:06,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-18 06:49:06,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-18 06:49:06,818 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf
[2020-04-18 06:49:06,844 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-18 06:49:06,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-18 06:49:06,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-18 06:49:06,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-18 06:49:06,846 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-18 06:49:06,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-18 06:49:06,847 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-18 06:49:06,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-18 06:49:06,847 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-18 06:49:06,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-18 06:49:06,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-18 06:49:06,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-18 06:49:06,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-18 06:49:06,849 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-18 06:49:06,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-18 06:49:06,850 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-18 06:49:06,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-18 06:49:06,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-18 06:49:06,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-18 06:49:06,851 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-18 06:49:06,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-18 06:49:06,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-18 06:49:06,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-18 06:49:06,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-18 06:49:06,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-18 06:49:06,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-04-18 06:49:06,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-18 06:49:06,852 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2020-04-18 06:49:06,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-18 06:49:06,853 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-18 06:49:07,140 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-18 06:49:07,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-18 06:49:07,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-18 06:49:07,158 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-18 06:49:07,158 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-18 06:49:07,159 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i
[2020-04-18 06:49:07,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65db64dc0/7968a57d91dd46c996fd03b4f6dd8115/FLAGf88c00098
[2020-04-18 06:49:07,812 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-18 06:49:07,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i
[2020-04-18 06:49:07,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65db64dc0/7968a57d91dd46c996fd03b4f6dd8115/FLAGf88c00098
[2020-04-18 06:49:08,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65db64dc0/7968a57d91dd46c996fd03b4f6dd8115
[2020-04-18 06:49:08,084 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-18 06:49:08,107 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-18 06:49:08,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-18 06:49:08,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-18 06:49:08,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-18 06:49:08,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:49:08" (1/1) ...
[2020-04-18 06:49:08,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783ee382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08, skipping insertion in model container
[2020-04-18 06:49:08,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:49:08" (1/1) ...
[2020-04-18 06:49:08,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-18 06:49:08,189 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-18 06:49:08,660 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 06:49:08,676 INFO L203 MainTranslator]: Completed pre-run
[2020-04-18 06:49:08,738 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 06:49:08,813 INFO L208 MainTranslator]: Completed translation
[2020-04-18 06:49:08,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08 WrapperNode
[2020-04-18 06:49:08,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-18 06:49:08,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-18 06:49:08,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-18 06:49:08,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-18 06:49:08,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08" (1/1) ...
[2020-04-18 06:49:08,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08" (1/1) ...
[2020-04-18 06:49:08,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-18 06:49:08,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-18 06:49:08,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-18 06:49:08,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-18 06:49:08,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08" (1/1) ...
[2020-04-18 06:49:08,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08" (1/1) ...
[2020-04-18 06:49:08,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08" (1/1) ...
[2020-04-18 06:49:08,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08" (1/1) ...
[2020-04-18 06:49:08,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08" (1/1) ...
[2020-04-18 06:49:08,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08" (1/1) ...
[2020-04-18 06:49:08,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08" (1/1) ...
[2020-04-18 06:49:08,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-18 06:49:08,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-18 06:49:08,894 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-18 06:49:08,895 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-18 06:49:08,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-18 06:49:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-18 06:49:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-18 06:49:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-18 06:49:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-18 06:49:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-04-18 06:49:08,964 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-04-18 06:49:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-04-18 06:49:08,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-04-18 06:49:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-04-18 06:49:08,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-04-18 06:49:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-18 06:49:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-18 06:49:08,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-18 06:49:08,967 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-04-18 06:49:09,371 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-18 06:49:09,372 INFO L295 CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-18 06:49:09,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:49:09 BoogieIcfgContainer
[2020-04-18 06:49:09,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-18 06:49:09,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-18 06:49:09,378 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-18 06:49:09,383 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-18 06:49:09,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:49:08" (1/3) ...
[2020-04-18 06:49:09,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5105fb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:49:09, skipping insertion in model container
[2020-04-18 06:49:09,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:08" (2/3) ...
[2020-04-18 06:49:09,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5105fb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:49:09, skipping insertion in model container
[2020-04-18 06:49:09,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:49:09" (3/3) ...
[2020-04-18 06:49:09,390 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i
[2020-04-18 06:49:09,399 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-18 06:49:09,400 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-18 06:49:09,407 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-18 06:49:09,408 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-18 06:49:09,434 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,435 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,435 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,436 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,436 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,436 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,437 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,437 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,437 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,438 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,438 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,438 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,439 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,439 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,439 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,439 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,440 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,440 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,444 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,445 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,445 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,445 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,452 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,452 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,453 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,453 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,455 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,456 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,456 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,456 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 06:49:09,470 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-18 06:49:09,486 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 06:49:09,486 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 06:49:09,487 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 06:49:09,487 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 06:49:09,487 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 06:49:09,487 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 06:49:09,487 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 06:49:09,487 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 06:49:09,500 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 70 transitions, 155 flow
[2020-04-18 06:49:09,975 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8472 states.
[2020-04-18 06:49:09,978 INFO L276 IsEmpty]: Start isEmpty. Operand 8472 states.
[2020-04-18 06:49:10,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2020-04-18 06:49:10,014 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 06:49:10,015 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 06:49:10,015 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 06:49:10,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 06:49:10,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1121550976, now seen corresponding path program 1 times
[2020-04-18 06:49:10,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 06:49:10,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631747098]
[2020-04-18 06:49:10,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 06:49:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 06:49:10,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 06:49:10,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631747098]
[2020-04-18 06:49:10,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 06:49:10,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-04-18 06:49:10,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143241110]
[2020-04-18 06:49:10,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-04-18 06:49:10,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 06:49:10,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 06:49:10,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-04-18 06:49:10,540 INFO L87 Difference]: Start difference. First operand 8472 states. Second operand 6 states.
[2020-04-18 06:49:11,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 06:49:11,156 INFO L93 Difference]: Finished difference Result 19746 states and 68130 transitions.
[2020-04-18 06:49:11,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-04-18 06:49:11,158 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36
[2020-04-18 06:49:11,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 06:49:11,236 INFO L225 Difference]: With dead ends: 19746
[2020-04-18 06:49:11,237 INFO L226 Difference]: Without dead ends: 6391
[2020-04-18 06:49:11,240 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-04-18 06:49:11,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6391 states.
[2020-04-18 06:49:11,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6391 to 5311.
[2020-04-18 06:49:11,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5311 states.
[2020-04-18 06:49:11,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 17983 transitions.
[2020-04-18 06:49:11,683 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 17983 transitions. Word has length 36
[2020-04-18 06:49:11,684 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 06:49:11,684 INFO L479 AbstractCegarLoop]: Abstraction has 5311 states and 17983 transitions.
[2020-04-18 06:49:11,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-04-18 06:49:11,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 17983 transitions.
[2020-04-18 06:49:11,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2020-04-18 06:49:11,697 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 06:49:11,697 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 06:49:11,697 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 06:49:11,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 06:49:11,698 INFO L82 PathProgramCache]: Analyzing trace with hash -431346913, now seen corresponding path program 1 times
[2020-04-18 06:49:11,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 06:49:11,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548325842]
[2020-04-18 06:49:11,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 06:49:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 06:49:11,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 06:49:11,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548325842]
[2020-04-18 06:49:11,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 06:49:11,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-04-18 06:49:11,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503284133]
[2020-04-18 06:49:11,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-04-18 06:49:11,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 06:49:11,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 06:49:11,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-04-18 06:49:11,860 INFO L87 Difference]: Start difference. First operand 5311 states and 17983 transitions. Second operand 6 states.
[2020-04-18 06:49:12,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 06:49:12,088 INFO L93 Difference]: Finished difference Result 5871 states and 19716 transitions.
[2020-04-18 06:49:12,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-04-18 06:49:12,093 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38
[2020-04-18 06:49:12,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 06:49:12,131 INFO L225 Difference]: With dead ends: 5871
[2020-04-18 06:49:12,131 INFO L226 Difference]: Without dead ends: 4891
[2020-04-18 06:49:12,143 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-04-18 06:49:12,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4891 states.
[2020-04-18 06:49:12,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4891 to 4531.
[2020-04-18 06:49:12,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4531 states.
[2020-04-18 06:49:12,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4531 states to 4531 states and 15289 transitions.
[2020-04-18 06:49:12,432 INFO L78 Accepts]: Start accepts. Automaton has 4531 states and 15289 transitions. Word has length 38
[2020-04-18 06:49:12,433 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 06:49:12,433 INFO L479 AbstractCegarLoop]: Abstraction has 4531 states and 15289 transitions.
[2020-04-18 06:49:12,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-04-18 06:49:12,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4531 states and 15289 transitions.
[2020-04-18 06:49:12,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2020-04-18 06:49:12,444 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 06:49:12,445 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 06:49:12,445 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 06:49:12,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 06:49:12,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1576932841, now seen corresponding path program 1 times
[2020-04-18 06:49:12,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 06:49:12,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030619181]
[2020-04-18 06:49:12,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 06:49:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 06:49:12,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 06:49:12,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030619181]
[2020-04-18 06:49:12,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 06:49:12,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 06:49:12,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766142706]
[2020-04-18 06:49:12,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 06:49:12,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 06:49:12,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 06:49:12,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-04-18 06:49:12,665 INFO L87 Difference]: Start difference. First operand 4531 states and 15289 transitions. Second operand 7 states.
[2020-04-18 06:49:12,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 06:49:12,989 INFO L93 Difference]: Finished difference Result 6819 states and 22558 transitions.
[2020-04-18 06:49:12,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-04-18 06:49:12,990 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38
[2020-04-18 06:49:12,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 06:49:13,051 INFO L225 Difference]: With dead ends: 6819
[2020-04-18 06:49:13,052 INFO L226 Difference]: Without dead ends: 5311
[2020-04-18 06:49:13,052 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2020-04-18 06:49:13,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5311 states.
[2020-04-18 06:49:13,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5311 to 4351.
[2020-04-18 06:49:13,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4351 states.
[2020-04-18 06:49:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 14605 transitions.
[2020-04-18 06:49:13,205 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 14605 transitions. Word has length 38
[2020-04-18 06:49:13,205 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 06:49:13,205 INFO L479 AbstractCegarLoop]: Abstraction has 4351 states and 14605 transitions.
[2020-04-18 06:49:13,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 06:49:13,205 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 14605 transitions.
[2020-04-18 06:49:13,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-04-18 06:49:13,217 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 06:49:13,217 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 06:49:13,217 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 06:49:13,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 06:49:13,218 INFO L82 PathProgramCache]: Analyzing trace with hash 284208118, now seen corresponding path program 1 times
[2020-04-18 06:49:13,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 06:49:13,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682029836]
[2020-04-18 06:49:13,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 06:49:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 06:49:13,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 06:49:13,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682029836]
[2020-04-18 06:49:13,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 06:49:13,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 06:49:13,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476766882]
[2020-04-18 06:49:13,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 06:49:13,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 06:49:13,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 06:49:13,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-04-18 06:49:13,398 INFO L87 Difference]: Start difference. First operand 4351 states and 14605 transitions. Second operand 7 states.
[2020-04-18 06:49:14,114 WARN L192 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 25
[2020-04-18 06:49:14,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 06:49:14,317 INFO L93 Difference]: Finished difference Result 6768 states and 22410 transitions.
[2020-04-18 06:49:14,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2020-04-18 06:49:14,317 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40
[2020-04-18 06:49:14,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 06:49:14,338 INFO L225 Difference]: With dead ends: 6768
[2020-04-18 06:49:14,339 INFO L226 Difference]: Without dead ends: 5508
[2020-04-18 06:49:14,339 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342
[2020-04-18 06:49:14,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5508 states.
[2020-04-18 06:49:14,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5508 to 4352.
[2020-04-18 06:49:14,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4352 states.
[2020-04-18 06:49:14,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4352 states to 4352 states and 14607 transitions.
[2020-04-18 06:49:14,481 INFO L78 Accepts]: Start accepts. Automaton has 4352 states and 14607 transitions. Word has length 40
[2020-04-18 06:49:14,481 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 06:49:14,481 INFO L479 AbstractCegarLoop]: Abstraction has 4352 states and 14607 transitions.
[2020-04-18 06:49:14,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 06:49:14,482 INFO L276 IsEmpty]: Start isEmpty. Operand 4352 states and 14607 transitions.
[2020-04-18 06:49:14,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-04-18 06:49:14,492 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 06:49:14,492 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 06:49:14,493 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 06:49:14,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 06:49:14,493 INFO L82 PathProgramCache]: Analyzing trace with hash 422557874, now seen corresponding path program 2 times
[2020-04-18 06:49:14,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 06:49:14,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392511094]
[2020-04-18 06:49:14,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 06:49:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 06:49:14,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 06:49:14,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392511094]
[2020-04-18 06:49:14,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 06:49:14,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-04-18 06:49:14,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826326304]
[2020-04-18 06:49:14,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-04-18 06:49:14,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 06:49:14,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 06:49:14,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-04-18 06:49:14,612 INFO L87 Difference]: Start difference. First operand 4352 states and 14607 transitions. Second operand 8 states.
[2020-04-18 06:49:14,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 06:49:14,806 INFO L93 Difference]: Finished difference Result 6350 states and 21002 transitions.
[2020-04-18 06:49:14,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-04-18 06:49:14,807 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40
[2020-04-18 06:49:14,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 06:49:14,819 INFO L225 Difference]: With dead ends: 6350
[2020-04-18 06:49:14,819 INFO L226 Difference]: Without dead ends: 3338
[2020-04-18 06:49:14,820 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2020-04-18 06:49:14,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3338 states.
[2020-04-18 06:49:14,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3338 to 2858.
[2020-04-18 06:49:14,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2858 states.
[2020-04-18 06:49:14,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 9228 transitions.
[2020-04-18 06:49:14,959 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 9228 transitions. Word has length 40
[2020-04-18 06:49:14,960 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 06:49:14,960 INFO L479 AbstractCegarLoop]: Abstraction has 2858 states and 9228 transitions.
[2020-04-18 06:49:14,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-04-18 06:49:14,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 9228 transitions.
[2020-04-18 06:49:14,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-04-18 06:49:14,974 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 06:49:14,974 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 06:49:14,974 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 06:49:14,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 06:49:14,977 INFO L82 PathProgramCache]: Analyzing trace with hash -56529516, now seen corresponding path program 1 times
[2020-04-18 06:49:14,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 06:49:14,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804421083]
[2020-04-18 06:49:14,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 06:49:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 06:49:15,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 06:49:15,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804421083]
[2020-04-18 06:49:15,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 06:49:15,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-04-18 06:49:15,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665280163]
[2020-04-18 06:49:15,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-04-18 06:49:15,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 06:49:15,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 06:49:15,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-04-18 06:49:15,098 INFO L87 Difference]: Start difference. First operand 2858 states and 9228 transitions. Second operand 6 states.
[2020-04-18 06:49:15,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 06:49:15,236 INFO L93 Difference]: Finished difference Result 3621 states and 11508 transitions.
[2020-04-18 06:49:15,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-04-18 06:49:15,236 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41
[2020-04-18 06:49:15,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 06:49:15,245 INFO L225 Difference]: With dead ends: 3621
[2020-04-18 06:49:15,245 INFO L226 Difference]: Without dead ends: 2605
[2020-04-18 06:49:15,246 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-04-18 06:49:15,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states.
[2020-04-18 06:49:15,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2605.
[2020-04-18 06:49:15,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states.
[2020-04-18 06:49:15,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 8281 transitions.
[2020-04-18 06:49:15,317 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 8281 transitions. Word has length 41
[2020-04-18 06:49:15,317 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 06:49:15,317 INFO L479 AbstractCegarLoop]: Abstraction has 2605 states and 8281 transitions.
[2020-04-18 06:49:15,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-04-18 06:49:15,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 8281 transitions.
[2020-04-18 06:49:15,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2020-04-18 06:49:15,325 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 06:49:15,325 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 06:49:15,325 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 06:49:15,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 06:49:15,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1759947093, now seen corresponding path program 1 times
[2020-04-18 06:49:15,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 06:49:15,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331679183]
[2020-04-18 06:49:15,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 06:49:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 06:49:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 06:49:15,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331679183]
[2020-04-18 06:49:15,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 06:49:15,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 06:49:15,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729126105]
[2020-04-18 06:49:15,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 06:49:15,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 06:49:15,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 06:49:15,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-04-18 06:49:15,443 INFO L87 Difference]: Start difference. First operand 2605 states and 8281 transitions. Second operand 7 states.
[2020-04-18 06:49:15,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 06:49:15,674 INFO L93 Difference]: Finished difference Result 2725 states and 8391 transitions.
[2020-04-18 06:49:15,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-04-18 06:49:15,675 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42
[2020-04-18 06:49:15,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 06:49:15,685 INFO L225 Difference]: With dead ends: 2725
[2020-04-18 06:49:15,685 INFO L226 Difference]: Without dead ends: 1873
[2020-04-18 06:49:15,686 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2020-04-18 06:49:15,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states.
[2020-04-18 06:49:15,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1873.
[2020-04-18 06:49:15,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1873 states.
[2020-04-18 06:49:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1873 states to 1873 states and 5672 transitions.
[2020-04-18 06:49:15,737 INFO L78 Accepts]: Start accepts. Automaton has 1873 states and 5672 transitions. Word has length 42
[2020-04-18 06:49:15,737 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 06:49:15,737 INFO L479 AbstractCegarLoop]: Abstraction has 1873 states and 5672 transitions.
[2020-04-18 06:49:15,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 06:49:15,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1873 states and 5672 transitions.
[2020-04-18 06:49:15,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-04-18 06:49:15,743 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 06:49:15,744 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 06:49:15,744 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 06:49:15,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 06:49:15,744 INFO L82 PathProgramCache]: Analyzing trace with hash -560928260, now seen corresponding path program 1 times
[2020-04-18 06:49:15,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 06:49:15,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046742798]
[2020-04-18 06:49:15,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 06:49:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 06:49:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 06:49:15,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046742798]
[2020-04-18 06:49:15,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 06:49:15,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-04-18 06:49:15,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445727389]
[2020-04-18 06:49:15,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-04-18 06:49:15,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 06:49:15,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 06:49:15,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-04-18 06:49:15,856 INFO L87 Difference]: Start difference. First operand 1873 states and 5672 transitions. Second operand 8 states.
[2020-04-18 06:49:16,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 06:49:16,023 INFO L93 Difference]: Finished difference Result 1513 states and 4418 transitions.
[2020-04-18 06:49:16,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-04-18 06:49:16,023 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44
[2020-04-18 06:49:16,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 06:49:16,027 INFO L225 Difference]: With dead ends: 1513
[2020-04-18 06:49:16,027 INFO L226 Difference]: Without dead ends: 949
[2020-04-18 06:49:16,028 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2020-04-18 06:49:16,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states.
[2020-04-18 06:49:16,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 917.
[2020-04-18 06:49:16,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states.
[2020-04-18 06:49:16,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 2581 transitions.
[2020-04-18 06:49:16,050 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 2581 transitions. Word has length 44
[2020-04-18 06:49:16,051 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 06:49:16,051 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 2581 transitions.
[2020-04-18 06:49:16,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-04-18 06:49:16,051 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 2581 transitions.
[2020-04-18 06:49:16,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2020-04-18 06:49:16,057 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 06:49:16,057 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 06:49:16,057 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 06:49:16,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 06:49:16,058 INFO L82 PathProgramCache]: Analyzing trace with hash -382500482, now seen corresponding path program 1 times
[2020-04-18 06:49:16,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 06:49:16,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227136164]
[2020-04-18 06:49:16,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 06:49:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 06:49:16,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 06:49:16,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227136164]
[2020-04-18 06:49:16,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 06:49:16,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 06:49:16,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338147679]
[2020-04-18 06:49:16,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 06:49:16,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 06:49:16,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 06:49:16,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-04-18 06:49:16,196 INFO L87 Difference]: Start difference. First operand 917 states and 2581 transitions. Second operand 7 states.
[2020-04-18 06:49:16,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 06:49:16,268 INFO L93 Difference]: Finished difference Result 863 states and 2419 transitions.
[2020-04-18 06:49:16,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-04-18 06:49:16,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48
[2020-04-18 06:49:16,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 06:49:16,269 INFO L225 Difference]: With dead ends: 863
[2020-04-18 06:49:16,269 INFO L226 Difference]: Without dead ends: 0
[2020-04-18 06:49:16,269 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-04-18 06:49:16,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-18 06:49:16,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-18 06:49:16,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-18 06:49:16,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-18 06:49:16,270 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48
[2020-04-18 06:49:16,270 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 06:49:16,270 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-18 06:49:16,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 06:49:16,270 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-18 06:49:16,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 06:49:16,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 06:49:16 BasicIcfg
[2020-04-18 06:49:16,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-18 06:49:16,279 INFO L168 Benchmark]: Toolchain (without parser) took 8192.69 ms. Allocated memory was 144.7 MB in the beginning and 474.5 MB in the end (delta: 329.8 MB). Free memory was 101.9 MB in the beginning and 142.4 MB in the end (delta: -40.5 MB). Peak memory consumption was 289.3 MB. Max. memory is 7.1 GB.
[2020-04-18 06:49:16,280 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-04-18 06:49:16,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.25 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 100.0 MB in the beginning and 158.3 MB in the end (delta: -58.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB.
[2020-04-18 06:49:16,282 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.46 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-04-18 06:49:16,287 INFO L168 Benchmark]: Boogie Preprocessor took 28.51 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 154.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-04-18 06:49:16,288 INFO L168 Benchmark]: RCFGBuilder took 482.17 ms. Allocated memory is still 203.4 MB. Free memory was 154.9 MB in the beginning and 132.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB.
[2020-04-18 06:49:16,292 INFO L168 Benchmark]: TraceAbstraction took 6898.85 ms. Allocated memory was 203.4 MB in the beginning and 474.5 MB in the end (delta: 271.1 MB). Free memory was 131.8 MB in the beginning and 142.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 260.5 MB. Max. memory is 7.1 GB.
[2020-04-18 06:49:16,302 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 706.25 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 100.0 MB in the beginning and 158.3 MB in the end (delta: -58.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 50.46 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 28.51 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 154.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 482.17 ms. Allocated memory is still 203.4 MB. Free memory was 154.9 MB in the beginning and 132.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 6898.85 ms. Allocated memory was 203.4 MB in the beginning and 474.5 MB in the end (delta: 271.1 MB). Free memory was 131.8 MB in the beginning and 142.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 260.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- 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: 6.7s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 897 SDtfs, 1544 SDslu, 2895 SDs, 0 SdLazy, 360 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8472occurred 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: 1.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 4068 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 358 ConstructedInterpolants, 0 QuantifiedInterpolants, 52418 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...