/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 20:51:35,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 20:51:35,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 20:51:35,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 20:51:35,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 20:51:35,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 20:51:35,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 20:51:35,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 20:51:35,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 20:51:35,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 20:51:35,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 20:51:35,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 20:51:35,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 20:51:35,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 20:51:35,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 20:51:35,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 20:51:35,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 20:51:35,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 20:51:35,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 20:51:35,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 20:51:35,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 20:51:35,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 20:51:35,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 20:51:35,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 20:51:35,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-26 20:51:35,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 20:51:35,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 20:51:35,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 20:51:35,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 20:51:35,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 20:51:35,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 20:51:35,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 20:51:35,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 20:51:35,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 20:51:35,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 20:51:35,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 20:51:35,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-26 20:51:35,135 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 20:51:35,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 20:51:35,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 20:51:35,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 20:51:35,136 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 20:51:35,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 20:51:35,137 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 20:51:35,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 20:51:35,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 20:51:35,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 20:51:35,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 20:51:35,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 20:51:35,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 20:51:35,138 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 20:51:35,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 20:51:35,138 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 20:51:35,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 20:51:35,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 20:51:35,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 20:51:35,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 20:51:35,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 20:51:35,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 20:51:35,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 20:51:35,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 20:51:35,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 20:51:35,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 20:51:35,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 20:51:35,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 20:51:35,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 20:51:35,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 20:51:35,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 20:51:35,416 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 20:51:35,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 20:51:35,421 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 20:51:35,421 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 20:51:35,422 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2019-12-26 20:51:35,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cf5207a0/63f91ac7dc414b968330f454650be714/FLAG8f23634ee [2019-12-26 20:51:35,983 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 20:51:35,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2019-12-26 20:51:35,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cf5207a0/63f91ac7dc414b968330f454650be714/FLAG8f23634ee [2019-12-26 20:51:36,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cf5207a0/63f91ac7dc414b968330f454650be714 [2019-12-26 20:51:36,307 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 20:51:36,309 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 20:51:36,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 20:51:36,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 20:51:36,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 20:51:36,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:51:36" (1/1) ... [2019-12-26 20:51:36,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2479233c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36, skipping insertion in model container [2019-12-26 20:51:36,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:51:36" (1/1) ... [2019-12-26 20:51:36,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 20:51:36,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 20:51:36,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:51:36,799 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 20:51:36,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:51:36,918 INFO L208 MainTranslator]: Completed translation [2019-12-26 20:51:36,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36 WrapperNode [2019-12-26 20:51:36,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 20:51:36,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 20:51:36,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 20:51:36,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 20:51:36,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36" (1/1) ... [2019-12-26 20:51:36,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36" (1/1) ... [2019-12-26 20:51:36,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 20:51:36,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 20:51:36,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 20:51:36,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 20:51:36,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36" (1/1) ... [2019-12-26 20:51:36,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36" (1/1) ... [2019-12-26 20:51:37,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36" (1/1) ... [2019-12-26 20:51:37,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36" (1/1) ... [2019-12-26 20:51:37,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36" (1/1) ... [2019-12-26 20:51:37,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36" (1/1) ... [2019-12-26 20:51:37,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36" (1/1) ... [2019-12-26 20:51:37,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 20:51:37,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 20:51:37,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 20:51:37,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 20:51:37,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36" (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 [2019-12-26 20:51:37,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-26 20:51:37,079 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-26 20:51:37,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-26 20:51:37,080 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-26 20:51:37,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-26 20:51:37,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 20:51:37,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 20:51:37,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 20:51:37,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 20:51:37,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 20:51:37,082 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 20:51:37,421 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 20:51:37,421 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 20:51:37,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:51:37 BoogieIcfgContainer [2019-12-26 20:51:37,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 20:51:37,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 20:51:37,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 20:51:37,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 20:51:37,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 08:51:36" (1/3) ... [2019-12-26 20:51:37,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3879db04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:51:37, skipping insertion in model container [2019-12-26 20:51:37,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:36" (2/3) ... [2019-12-26 20:51:37,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3879db04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:51:37, skipping insertion in model container [2019-12-26 20:51:37,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:51:37" (3/3) ... [2019-12-26 20:51:37,431 INFO L109 eAbstractionObserver]: Analyzing ICFG peterson.i [2019-12-26 20:51:37,440 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 20:51:37,441 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 20:51:37,447 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-26 20:51:37,448 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 20:51:37,474 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,474 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,474 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,475 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,476 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,476 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,477 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,477 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,477 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,477 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,478 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,478 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,482 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,483 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,483 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,483 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,490 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,490 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,490 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,491 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:37,508 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-26 20:51:37,528 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:51:37,528 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:51:37,528 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:51:37,529 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:51:37,529 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:51:37,529 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:51:37,529 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:51:37,529 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:51:37,543 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 62 transitions [2019-12-26 20:51:37,545 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 62 transitions [2019-12-26 20:51:37,587 INFO L132 PetriNetUnfolder]: 7/62 cut-off events. [2019-12-26 20:51:37,587 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-26 20:51:37,594 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 62 events. 7/62 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs. 0/54 useless extension candidates. Maximal degree in co-relation 39. Up to 3 conditions per place. [2019-12-26 20:51:37,597 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 62 transitions [2019-12-26 20:51:37,617 INFO L132 PetriNetUnfolder]: 7/62 cut-off events. [2019-12-26 20:51:37,617 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-26 20:51:37,618 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 62 events. 7/62 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs. 0/54 useless extension candidates. Maximal degree in co-relation 39. Up to 3 conditions per place. [2019-12-26 20:51:37,621 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 756 [2019-12-26 20:51:37,622 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:51:38,572 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-12-26 20:51:38,637 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1396 [2019-12-26 20:51:38,638 INFO L214 etLargeBlockEncoding]: Total number of compositions: 33 [2019-12-26 20:51:38,643 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 34 transitions [2019-12-26 20:51:38,666 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 197 states. [2019-12-26 20:51:38,669 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2019-12-26 20:51:38,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-26 20:51:38,675 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:38,676 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-26 20:51:38,677 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:51:38,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:38,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1379963486, now seen corresponding path program 1 times [2019-12-26 20:51:38,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:38,693 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460342925] [2019-12-26 20:51:38,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:38,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460342925] [2019-12-26 20:51:38,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:38,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:51:38,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962917579] [2019-12-26 20:51:38,862 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-26 20:51:38,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:38,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-26 20:51:38,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-26 20:51:38,887 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2019-12-26 20:51:38,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:38,915 INFO L93 Difference]: Finished difference Result 197 states and 454 transitions. [2019-12-26 20:51:38,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-26 20:51:38,917 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-12-26 20:51:38,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:38,932 INFO L225 Difference]: With dead ends: 197 [2019-12-26 20:51:38,932 INFO L226 Difference]: Without dead ends: 174 [2019-12-26 20:51:38,933 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-26 20:51:38,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2019-12-26 20:51:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2019-12-26 20:51:38,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2019-12-26 20:51:38,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 406 transitions. [2019-12-26 20:51:38,991 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 406 transitions. Word has length 6 [2019-12-26 20:51:38,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:38,991 INFO L462 AbstractCegarLoop]: Abstraction has 174 states and 406 transitions. [2019-12-26 20:51:38,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-26 20:51:38,991 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 406 transitions. [2019-12-26 20:51:38,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-26 20:51:38,992 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:38,992 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:38,993 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:51:38,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:38,993 INFO L82 PathProgramCache]: Analyzing trace with hash 170777462, now seen corresponding path program 1 times [2019-12-26 20:51:38,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:38,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104341621] [2019-12-26 20:51:38,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:39,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:39,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104341621] [2019-12-26 20:51:39,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:39,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:51:39,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740249240] [2019-12-26 20:51:39,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:51:39,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:39,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:51:39,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:51:39,097 INFO L87 Difference]: Start difference. First operand 174 states and 406 transitions. Second operand 3 states. [2019-12-26 20:51:39,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:39,131 INFO L93 Difference]: Finished difference Result 189 states and 416 transitions. [2019-12-26 20:51:39,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:51:39,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-26 20:51:39,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:39,134 INFO L225 Difference]: With dead ends: 189 [2019-12-26 20:51:39,134 INFO L226 Difference]: Without dead ends: 154 [2019-12-26 20:51:39,135 INFO L631 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 [2019-12-26 20:51:39,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-12-26 20:51:39,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 140. [2019-12-26 20:51:39,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-26 20:51:39,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 317 transitions. [2019-12-26 20:51:39,151 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 317 transitions. Word has length 7 [2019-12-26 20:51:39,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:39,152 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 317 transitions. [2019-12-26 20:51:39,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:51:39,152 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 317 transitions. [2019-12-26 20:51:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 20:51:39,154 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:39,155 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:39,155 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:51:39,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:39,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1618546552, now seen corresponding path program 1 times [2019-12-26 20:51:39,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:39,156 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933462402] [2019-12-26 20:51:39,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:39,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:39,225 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933462402] [2019-12-26 20:51:39,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:39,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:51:39,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659970530] [2019-12-26 20:51:39,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:51:39,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:39,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:51:39,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:51:39,227 INFO L87 Difference]: Start difference. First operand 140 states and 317 transitions. Second operand 3 states. [2019-12-26 20:51:39,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:39,259 INFO L93 Difference]: Finished difference Result 135 states and 290 transitions. [2019-12-26 20:51:39,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:51:39,260 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-26 20:51:39,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:39,261 INFO L225 Difference]: With dead ends: 135 [2019-12-26 20:51:39,262 INFO L226 Difference]: Without dead ends: 96 [2019-12-26 20:51:39,262 INFO L631 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 [2019-12-26 20:51:39,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-12-26 20:51:39,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-12-26 20:51:39,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-12-26 20:51:39,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 204 transitions. [2019-12-26 20:51:39,271 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 204 transitions. Word has length 9 [2019-12-26 20:51:39,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:39,273 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 204 transitions. [2019-12-26 20:51:39,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:51:39,273 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 204 transitions. [2019-12-26 20:51:39,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-26 20:51:39,278 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:39,278 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:39,278 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:51:39,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:39,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1612301587, now seen corresponding path program 1 times [2019-12-26 20:51:39,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:39,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760857267] [2019-12-26 20:51:39,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:39,375 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760857267] [2019-12-26 20:51:39,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:39,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-26 20:51:39,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789499536] [2019-12-26 20:51:39,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 20:51:39,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:39,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 20:51:39,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:51:39,381 INFO L87 Difference]: Start difference. First operand 96 states and 204 transitions. Second operand 4 states. [2019-12-26 20:51:39,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:39,420 INFO L93 Difference]: Finished difference Result 106 states and 227 transitions. [2019-12-26 20:51:39,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 20:51:39,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-26 20:51:39,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:39,424 INFO L225 Difference]: With dead ends: 106 [2019-12-26 20:51:39,424 INFO L226 Difference]: Without dead ends: 82 [2019-12-26 20:51:39,425 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:51:39,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-12-26 20:51:39,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-12-26 20:51:39,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-12-26 20:51:39,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 160 transitions. [2019-12-26 20:51:39,437 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 160 transitions. Word has length 13 [2019-12-26 20:51:39,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:39,438 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 160 transitions. [2019-12-26 20:51:39,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 20:51:39,438 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 160 transitions. [2019-12-26 20:51:39,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-26 20:51:39,441 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:39,441 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:39,441 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:51:39,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:39,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1894970123, now seen corresponding path program 2 times [2019-12-26 20:51:39,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:39,442 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577307702] [2019-12-26 20:51:39,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:39,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577307702] [2019-12-26 20:51:39,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:39,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-26 20:51:39,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84417833] [2019-12-26 20:51:39,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 20:51:39,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:39,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 20:51:39,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:51:39,515 INFO L87 Difference]: Start difference. First operand 82 states and 160 transitions. Second operand 4 states. [2019-12-26 20:51:39,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:39,534 INFO L93 Difference]: Finished difference Result 36 states and 77 transitions. [2019-12-26 20:51:39,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 20:51:39,535 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-26 20:51:39,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:39,536 INFO L225 Difference]: With dead ends: 36 [2019-12-26 20:51:39,536 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 20:51:39,536 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:51:39,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 20:51:39,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 20:51:39,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 20:51:39,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 20:51:39,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-12-26 20:51:39,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:39,538 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 20:51:39,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 20:51:39,539 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 20:51:39,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 20:51:39,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 08:51:39 BasicIcfg [2019-12-26 20:51:39,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 20:51:39,553 INFO L168 Benchmark]: Toolchain (without parser) took 3241.57 ms. Allocated memory was 137.9 MB in the beginning and 233.8 MB in the end (delta: 95.9 MB). Free memory was 101.0 MB in the beginning and 81.7 MB in the end (delta: 19.3 MB). Peak memory consumption was 115.2 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:39,554 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-26 20:51:39,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.56 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 161.0 MB in the end (delta: -60.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:39,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.50 ms. Allocated memory is still 201.3 MB. Free memory was 161.0 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:39,580 INFO L168 Benchmark]: Boogie Preprocessor took 30.36 ms. Allocated memory is still 201.3 MB. Free memory was 159.0 MB in the beginning and 157.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:39,581 INFO L168 Benchmark]: RCFGBuilder took 407.65 ms. Allocated memory is still 201.3 MB. Free memory was 157.7 MB in the beginning and 138.1 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:39,582 INFO L168 Benchmark]: TraceAbstraction took 2125.20 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 137.4 MB in the beginning and 81.7 MB in the end (delta: 55.7 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:39,590 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 608.56 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 161.0 MB in the end (delta: -60.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.50 ms. Allocated memory is still 201.3 MB. Free memory was 161.0 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.36 ms. Allocated memory is still 201.3 MB. Free memory was 159.0 MB in the beginning and 157.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 407.65 ms. Allocated memory is still 201.3 MB. Free memory was 157.7 MB in the beginning and 138.1 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2125.20 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 137.4 MB in the beginning and 81.7 MB in the end (delta: 55.7 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 61 ProgramPointsBefore, 33 ProgramPointsAfterwards, 62 TransitionsBefore, 34 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 330 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 19 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1396 CheckedPairsTotal, 33 TotalNumberOfCompositions - PositiveResult [Line: 690]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 681]: 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, 55 locations, 2 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 139 SDtfs, 60 SDslu, 60 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 801 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...