/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-atomic/peterson.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-1d1d2b5
[2020-10-21 22:38:57,927 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-10-21 22:38:57,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-21 22:38:57,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-21 22:38:57,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-21 22:38:57,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-21 22:38:57,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-21 22:38:57,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-21 22:38:57,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-21 22:38:57,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-10-21 22:38:57,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-21 22:38:57,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-21 22:38:57,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-21 22:38:57,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-21 22:38:57,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-21 22:38:57,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-21 22:38:57,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-21 22:38:57,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-21 22:38:57,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-21 22:38:57,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-21 22:38:57,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-21 22:38:57,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-10-21 22:38:57,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-21 22:38:57,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-21 22:38:57,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-21 22:38:57,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-21 22:38:57,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-21 22:38:57,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-21 22:38:57,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-21 22:38:57,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-21 22:38:57,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-21 22:38:57,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-10-21 22:38:57,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-21 22:38:57,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-10-21 22:38:57,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-10-21 22:38:57,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-10-21 22:38:57,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf
[2020-10-21 22:38:58,017 INFO L113 SettingsManager]: Loading preferences was successful
[2020-10-21 22:38:58,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-21 22:38:58,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-21 22:38:58,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-10-21 22:38:58,019 INFO L138 SettingsManager]: * Use SBE=true
[2020-10-21 22:38:58,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-21 22:38:58,019 INFO L138 SettingsManager]: * sizeof long=4
[2020-10-21 22:38:58,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-10-21 22:38:58,020 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-10-21 22:38:58,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-10-21 22:38:58,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-10-21 22:38:58,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-21 22:38:58,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-10-21 22:38:58,021 INFO L138 SettingsManager]: * sizeof long double=12
[2020-10-21 22:38:58,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-10-21 22:38:58,021 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-10-21 22:38:58,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-10-21 22:38:58,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-21 22:38:58,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-10-21 22:38:58,022 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-10-21 22:38:58,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-10-21 22:38:58,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-21 22:38:58,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-21 22:38:58,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2020-10-21 22:38:58,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-21 22:38:58,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-10-21 22:38:58,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-21 22:38:58,023 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-10-21 22:38:58,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-21 22:38:58,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-21 22:38:58,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-21 22:38:58,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-21 22:38:58,376 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-10-21 22:38:58,377 INFO L275 PluginConnector]: CDTParser initialized
[2020-10-21 22:38:58,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i
[2020-10-21 22:38:58,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a14f47e2f/d4c058bc1bb94fa59938b4cea915b8e0/FLAG6a0e50a1b
[2020-10-21 22:38:58,986 INFO L306 CDTParser]: Found 1 translation units.
[2020-10-21 22:38:58,987 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i
[2020-10-21 22:38:59,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a14f47e2f/d4c058bc1bb94fa59938b4cea915b8e0/FLAG6a0e50a1b
[2020-10-21 22:38:59,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a14f47e2f/d4c058bc1bb94fa59938b4cea915b8e0
[2020-10-21 22:38:59,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-21 22:38:59,312 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-10-21 22:38:59,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-21 22:38:59,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-21 22:38:59,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-21 22:38:59,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:38:59" (1/1) ...
[2020-10-21 22:38:59,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494984a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:59, skipping insertion in model container
[2020-10-21 22:38:59,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:38:59" (1/1) ...
[2020-10-21 22:38:59,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-10-21 22:38:59,378 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-10-21 22:38:59,703 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2020-10-21 22:38:59,912 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-21 22:38:59,921 INFO L203 MainTranslator]: Completed pre-run
[2020-10-21 22:38:59,952 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2020-10-21 22:39:00,001 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-21 22:39:00,072 INFO L208 MainTranslator]: Completed translation
[2020-10-21 22:39:00,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00 WrapperNode
[2020-10-21 22:39:00,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-21 22:39:00,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-10-21 22:39:00,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-10-21 22:39:00,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-10-21 22:39:00,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ...
[2020-10-21 22:39:00,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ...
[2020-10-21 22:39:00,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-10-21 22:39:00,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-21 22:39:00,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-21 22:39:00,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-10-21 22:39:00,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ...
[2020-10-21 22:39:00,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ...
[2020-10-21 22:39:00,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ...
[2020-10-21 22:39:00,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ...
[2020-10-21 22:39:00,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ...
[2020-10-21 22:39:00,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ...
[2020-10-21 22:39:00,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ...
[2020-10-21 22:39:00,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-21 22:39:00,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-21 22:39:00,153 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-10-21 22:39:00,153 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-10-21 22:39:00,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (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
[2020-10-21 22:39:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-10-21 22:39:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure thr2
[2020-10-21 22:39:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2
[2020-10-21 22:39:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure thr1
[2020-10-21 22:39:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1
[2020-10-21 22:39:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-10-21 22:39:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-10-21 22:39:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-21 22:39:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-21 22:39:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-21 22:39:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-10-21 22:39:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-21 22:39:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-21 22:39:00,229 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-10-21 22:39:00,608 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-21 22:39:00,609 INFO L298 CfgBuilder]: Removed 10 assume(true) statements.
[2020-10-21 22:39:00,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:39:00 BoogieIcfgContainer
[2020-10-21 22:39:00,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-21 22:39:00,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-21 22:39:00,613 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-10-21 22:39:00,617 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-10-21 22:39:00,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:38:59" (1/3) ...
[2020-10-21 22:39:00,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3186d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:39:00, skipping insertion in model container
[2020-10-21 22:39:00,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (2/3) ...
[2020-10-21 22:39:00,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3186d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:39:00, skipping insertion in model container
[2020-10-21 22:39:00,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:39:00" (3/3) ...
[2020-10-21 22:39:00,621 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i
[2020-10-21 22:39:00,634 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-10-21 22:39:00,634 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-21 22:39:00,642 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations.
[2020-10-21 22:39:00,643 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-10-21 22:39:00,685 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,685 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,685 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,686 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,686 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,687 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,687 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,687 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,687 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,688 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,689 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,689 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,689 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,689 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,690 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,690 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,691 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,692 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,692 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,692 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,693 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,694 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,694 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,694 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,694 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,695 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,695 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,695 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,696 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,697 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,697 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,697 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,703 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,703 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,704 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,705 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,706 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,706 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,706 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,706 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,714 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,714 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,714 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,715 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,716 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-21 22:39:00,729 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2020-10-21 22:39:00,740 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2020-10-21 22:39:00,758 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-10-21 22:39:00,758 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-10-21 22:39:00,758 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-21 22:39:00,758 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-21 22:39:00,758 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-21 22:39:00,758 INFO L382 AbstractCegarLoop]: Difference is false
[2020-10-21 22:39:00,758 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-21 22:39:00,759 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-21 22:39:00,771 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2020-10-21 22:39:00,772 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 78 transitions, 178 flow
[2020-10-21 22:39:00,774 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 78 transitions, 178 flow
[2020-10-21 22:39:00,775 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 75 places, 78 transitions, 178 flow
[2020-10-21 22:39:00,819 INFO L129 PetriNetUnfolder]: 9/78 cut-off events.
[2020-10-21 22:39:00,820 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES.
[2020-10-21 22:39:00,828 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 78 events. 9/78 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 91 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 51. Up to 3 conditions per place.
[2020-10-21 22:39:00,831 INFO L116 LiptonReduction]: Number of co-enabled transitions 1320
[2020-10-21 22:39:02,069 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76
[2020-10-21 22:39:02,189 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 72
[2020-10-21 22:39:02,203 INFO L131 LiptonReduction]: Checked pairs total: 4998
[2020-10-21 22:39:02,203 INFO L133 LiptonReduction]: Total number of compositions: 56
[2020-10-21 22:39:02,210 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 38 transitions, 98 flow
[2020-10-21 22:39:02,234 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 285 states.
[2020-10-21 22:39:02,237 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states.
[2020-10-21 22:39:02,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-10-21 22:39:02,244 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-21 22:39:02,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-21 22:39:02,245 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-21 22:39:02,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-21 22:39:02,251 INFO L82 PathProgramCache]: Analyzing trace with hash -248016852, now seen corresponding path program 1 times
[2020-10-21 22:39:02,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-21 22:39:02,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472566168]
[2020-10-21 22:39:02,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-21 22:39:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-21 22:39:02,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-21 22:39:02,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472566168]
[2020-10-21 22:39:02,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-21 22:39:02,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-21 22:39:02,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121614931]
[2020-10-21 22:39:02,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-21 22:39:02,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-21 22:39:02,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-21 22:39:02,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-21 22:39:02,475 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states.
[2020-10-21 22:39:02,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-21 22:39:02,536 INFO L93 Difference]: Finished difference Result 318 states and 700 transitions.
[2020-10-21 22:39:02,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-10-21 22:39:02,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2020-10-21 22:39:02,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-21 22:39:02,553 INFO L225 Difference]: With dead ends: 318
[2020-10-21 22:39:02,553 INFO L226 Difference]: Without dead ends: 195
[2020-10-21 22:39:02,554 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
[2020-10-21 22:39:02,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states.
[2020-10-21 22:39:02,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 181.
[2020-10-21 22:39:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states.
[2020-10-21 22:39:02,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 413 transitions.
[2020-10-21 22:39:02,618 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 413 transitions. Word has length 8
[2020-10-21 22:39:02,619 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-21 22:39:02,619 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 413 transitions.
[2020-10-21 22:39:02,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-21 22:39:02,619 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 413 transitions.
[2020-10-21 22:39:02,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-10-21 22:39:02,621 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-21 22:39:02,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-21 22:39:02,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-21 22:39:02,621 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-21 22:39:02,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-21 22:39:02,622 INFO L82 PathProgramCache]: Analyzing trace with hash 312448463, now seen corresponding path program 1 times
[2020-10-21 22:39:02,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-21 22:39:02,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59236665]
[2020-10-21 22:39:02,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-21 22:39:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-21 22:39:02,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-21 22:39:02,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59236665]
[2020-10-21 22:39:02,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-21 22:39:02,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-21 22:39:02,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493762035]
[2020-10-21 22:39:02,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-21 22:39:02,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-21 22:39:02,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-21 22:39:02,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-21 22:39:02,711 INFO L87 Difference]: Start difference. First operand 181 states and 413 transitions. Second operand 3 states.
[2020-10-21 22:39:02,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-21 22:39:02,732 INFO L93 Difference]: Finished difference Result 168 states and 368 transitions.
[2020-10-21 22:39:02,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-10-21 22:39:02,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10
[2020-10-21 22:39:02,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-21 22:39:02,735 INFO L225 Difference]: With dead ends: 168
[2020-10-21 22:39:02,735 INFO L226 Difference]: Without dead ends: 120
[2020-10-21 22:39:02,736 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
[2020-10-21 22:39:02,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states.
[2020-10-21 22:39:02,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120.
[2020-10-21 22:39:02,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states.
[2020-10-21 22:39:02,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 263 transitions.
[2020-10-21 22:39:02,747 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 263 transitions. Word has length 10
[2020-10-21 22:39:02,748 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-21 22:39:02,749 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 263 transitions.
[2020-10-21 22:39:02,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-21 22:39:02,749 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 263 transitions.
[2020-10-21 22:39:02,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-10-21 22:39:02,750 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-21 22:39:02,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-21 22:39:02,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-21 22:39:02,751 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-21 22:39:02,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-21 22:39:02,752 INFO L82 PathProgramCache]: Analyzing trace with hash -104298639, now seen corresponding path program 1 times
[2020-10-21 22:39:02,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-21 22:39:02,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534390412]
[2020-10-21 22:39:02,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-21 22:39:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-21 22:39:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-21 22:39:02,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534390412]
[2020-10-21 22:39:02,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-21 22:39:02,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-10-21 22:39:02,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854859216]
[2020-10-21 22:39:02,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-21 22:39:02,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-21 22:39:02,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-21 22:39:02,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-10-21 22:39:02,872 INFO L87 Difference]: Start difference. First operand 120 states and 263 transitions. Second operand 6 states.
[2020-10-21 22:39:02,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-21 22:39:02,979 INFO L93 Difference]: Finished difference Result 162 states and 368 transitions.
[2020-10-21 22:39:02,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-10-21 22:39:02,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15
[2020-10-21 22:39:02,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-21 22:39:02,981 INFO L225 Difference]: With dead ends: 162
[2020-10-21 22:39:02,982 INFO L226 Difference]: Without dead ends: 100
[2020-10-21 22:39:02,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2020-10-21 22:39:02,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2020-10-21 22:39:02,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100.
[2020-10-21 22:39:02,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states.
[2020-10-21 22:39:02,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 197 transitions.
[2020-10-21 22:39:02,990 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 197 transitions. Word has length 15
[2020-10-21 22:39:02,990 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-21 22:39:02,990 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 197 transitions.
[2020-10-21 22:39:02,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-10-21 22:39:02,990 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 197 transitions.
[2020-10-21 22:39:02,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-10-21 22:39:02,992 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-21 22:39:02,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-21 22:39:02,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-21 22:39:02,992 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-21 22:39:02,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-21 22:39:02,993 INFO L82 PathProgramCache]: Analyzing trace with hash 810049139, now seen corresponding path program 2 times
[2020-10-21 22:39:02,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-21 22:39:02,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891916458]
[2020-10-21 22:39:02,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-21 22:39:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-21 22:39:03,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-21 22:39:03,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891916458]
[2020-10-21 22:39:03,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-21 22:39:03,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-10-21 22:39:03,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402035577]
[2020-10-21 22:39:03,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-21 22:39:03,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-21 22:39:03,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-21 22:39:03,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-10-21 22:39:03,057 INFO L87 Difference]: Start difference. First operand 100 states and 197 transitions. Second operand 6 states.
[2020-10-21 22:39:03,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-21 22:39:03,108 INFO L93 Difference]: Finished difference Result 58 states and 122 transitions.
[2020-10-21 22:39:03,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-10-21 22:39:03,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15
[2020-10-21 22:39:03,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-21 22:39:03,109 INFO L225 Difference]: With dead ends: 58
[2020-10-21 22:39:03,109 INFO L226 Difference]: Without dead ends: 0
[2020-10-21 22:39:03,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2020-10-21 22:39:03,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-10-21 22:39:03,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-10-21 22:39:03,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-10-21 22:39:03,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-10-21 22:39:03,110 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15
[2020-10-21 22:39:03,110 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-21 22:39:03,111 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-10-21 22:39:03,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-10-21 22:39:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-10-21 22:39:03,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-10-21 22:39:03,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-10-21 22:39:03,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:39:03 BasicIcfg
[2020-10-21 22:39:03,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-21 22:39:03,117 INFO L168 Benchmark]: Toolchain (without parser) took 3810.85 ms. Allocated memory was 138.4 MB in the beginning and 250.1 MB in the end (delta: 111.7 MB). Free memory was 100.3 MB in the beginning and 131.2 MB in the end (delta: -30.9 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB.
[2020-10-21 22:39:03,118 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-10-21 22:39:03,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.12 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.2 MB in the beginning and 156.3 MB in the end (delta: -57.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB.
[2020-10-21 22:39:03,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.20 ms. Allocated memory is still 201.3 MB. Free memory was 156.3 MB in the beginning and 154.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
[2020-10-21 22:39:03,121 INFO L168 Benchmark]: Boogie Preprocessor took 29.73 ms. Allocated memory is still 201.3 MB. Free memory was 154.2 MB in the beginning and 152.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-10-21 22:39:03,122 INFO L168 Benchmark]: RCFGBuilder took 458.46 ms. Allocated memory is still 201.3 MB. Free memory was 152.8 MB in the beginning and 129.6 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB.
[2020-10-21 22:39:03,123 INFO L168 Benchmark]: TraceAbstraction took 2502.56 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 129.0 MB in the beginning and 131.2 MB in the end (delta: -2.2 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB.
[2020-10-21 22:39:03,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 760.12 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.2 MB in the beginning and 156.3 MB in the end (delta: -57.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 49.20 ms. Allocated memory is still 201.3 MB. Free memory was 156.3 MB in the beginning and 154.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 29.73 ms. Allocated memory is still 201.3 MB. Free memory was 154.2 MB in the beginning and 152.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 458.46 ms. Allocated memory is still 201.3 MB. Free memory was 152.8 MB in the beginning and 129.6 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2502.56 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 129.0 MB in the beginning and 131.2 MB in the end (delta: -2.2 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
712 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 178 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 75 PlacesBefore, 38 PlacesAfterwards, 78 TransitionsBefore, 38 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 56 TotalNumberOfCompositions, 4998 MoverChecksTotal
- PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
2 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 69 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 146 SDtfs, 115 SDslu, 176 SDs, 0 SdLazy, 91 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285occurred 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, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1338 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...