/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:34:44,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:34:44,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:34:44,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:34:44,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:34:44,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:34:44,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:34:44,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:34:44,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:34:44,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:34:44,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:34:44,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:34:44,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:34:44,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:34:44,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:34:44,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:34:44,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:34:44,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:34:44,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:34:44,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:34:44,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:34:44,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:34:44,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:34:44,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:34:44,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:34:44,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:34:44,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:34:44,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:34:44,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:34:44,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:34:44,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:34:44,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:34:44,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:34:44,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:34:44,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:34:44,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:34:44,954 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:34:44,969 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:34:44,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:34:44,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:34:44,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:34:44,971 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:34:44,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:34:44,971 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:34:44,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:34:44,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:34:44,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:34:44,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:34:44,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:34:44,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:34:44,973 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:34:44,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:34:44,973 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:34:44,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:34:44,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:34:44,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:34:44,974 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:34:44,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:34:44,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:34:44,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:34:44,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:34:44,975 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:34:44,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:34:44,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:34:44,976 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:34:44,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:34:44,976 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:34:45,300 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:34:45,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:34:45,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:34:45,329 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:34:45,330 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:34:45,331 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2019-12-19 05:34:45,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7267bb38d/c2ebdf43702240b688e4503b8209bf37/FLAGb5c881311 [2019-12-19 05:34:45,878 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:34:45,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2019-12-19 05:34:45,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7267bb38d/c2ebdf43702240b688e4503b8209bf37/FLAGb5c881311 [2019-12-19 05:34:46,236 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7267bb38d/c2ebdf43702240b688e4503b8209bf37 [2019-12-19 05:34:46,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:34:46,247 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:34:46,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:34:46,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:34:46,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:34:46,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:34:46" (1/1) ... [2019-12-19 05:34:46,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4a1e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:46, skipping insertion in model container [2019-12-19 05:34:46,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:34:46" (1/1) ... [2019-12-19 05:34:46,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:34:46,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:34:46,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:34:46,870 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:34:46,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:34:47,000 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:34:47,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:47 WrapperNode [2019-12-19 05:34:47,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:34:47,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:34:47,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:34:47,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:34:47,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:47" (1/1) ... [2019-12-19 05:34:47,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:47" (1/1) ... [2019-12-19 05:34:47,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:34:47,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:34:47,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:34:47,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:34:47,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:47" (1/1) ... [2019-12-19 05:34:47,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:47" (1/1) ... [2019-12-19 05:34:47,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:47" (1/1) ... [2019-12-19 05:34:47,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:47" (1/1) ... [2019-12-19 05:34:47,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:47" (1/1) ... [2019-12-19 05:34:47,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:47" (1/1) ... [2019-12-19 05:34:47,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:47" (1/1) ... [2019-12-19 05:34:47,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:34:47,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:34:47,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:34:47,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:34:47,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:47" (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 [2019-12-19 05:34:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:34:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:34:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:34:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:34:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:34:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:34:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:34:47,148 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:34:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:34:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:34:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:34:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:34:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:34:47,152 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:34:47,503 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:34:47,503 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:34:47,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:34:47 BoogieIcfgContainer [2019-12-19 05:34:47,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:34:47,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:34:47,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:34:47,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:34:47,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:34:46" (1/3) ... [2019-12-19 05:34:47,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5236b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:34:47, skipping insertion in model container [2019-12-19 05:34:47,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:47" (2/3) ... [2019-12-19 05:34:47,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5236b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:34:47, skipping insertion in model container [2019-12-19 05:34:47,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:34:47" (3/3) ... [2019-12-19 05:34:47,513 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2019-12-19 05:34:47,524 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:34:47,524 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:34:47,531 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:34:47,532 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:34:47,565 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,565 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,566 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,566 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,566 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,567 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,567 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,567 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,568 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,568 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,568 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,568 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,569 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,569 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,569 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,569 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,570 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,570 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,573 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,574 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,574 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,574 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,579 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,579 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,580 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,580 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,583 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,583 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,583 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,583 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:47,604 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:34:47,621 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:34:47,621 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:34:47,621 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:34:47,621 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:34:47,621 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:34:47,622 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:34:47,622 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:34:47,622 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:34:47,632 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-19 05:34:47,719 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-19 05:34:47,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-19 05:34:47,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:34:47,738 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:47,739 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:47,740 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:47,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:47,746 INFO L82 PathProgramCache]: Analyzing trace with hash 100870604, now seen corresponding path program 1 times [2019-12-19 05:34:47,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:47,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344965843] [2019-12-19 05:34:47,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:48,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:48,141 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344965843] [2019-12-19 05:34:48,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:48,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:34:48,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907126725] [2019-12-19 05:34:48,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:34:48,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:48,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:34:48,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:34:48,167 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-19 05:34:48,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:48,296 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-19 05:34:48,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:34:48,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-19 05:34:48,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:48,353 INFO L225 Difference]: With dead ends: 1296 [2019-12-19 05:34:48,353 INFO L226 Difference]: Without dead ends: 602 [2019-12-19 05:34:48,354 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:34:48,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-19 05:34:48,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-19 05:34:48,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-19 05:34:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-19 05:34:48,465 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-19 05:34:48,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:48,466 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-19 05:34:48,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:34:48,466 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-19 05:34:48,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:34:48,470 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:48,470 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:48,470 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:48,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:48,471 INFO L82 PathProgramCache]: Analyzing trace with hash -471697472, now seen corresponding path program 1 times [2019-12-19 05:34:48,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:48,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494655432] [2019-12-19 05:34:48,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:48,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:48,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494655432] [2019-12-19 05:34:48,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:48,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:34:48,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705083427] [2019-12-19 05:34:48,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:34:48,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:48,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:34:48,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:34:48,626 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-19 05:34:48,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:48,700 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-19 05:34:48,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:34:48,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-19 05:34:48,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:48,713 INFO L225 Difference]: With dead ends: 602 [2019-12-19 05:34:48,714 INFO L226 Difference]: Without dead ends: 539 [2019-12-19 05:34:48,723 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:34:48,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-19 05:34:48,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-19 05:34:48,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-19 05:34:48,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-19 05:34:48,776 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-19 05:34:48,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:48,777 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-19 05:34:48,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:34:48,777 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-19 05:34:48,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:34:48,779 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:48,780 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:48,780 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:48,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:48,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1145104615, now seen corresponding path program 1 times [2019-12-19 05:34:48,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:48,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239254376] [2019-12-19 05:34:48,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:48,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:48,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239254376] [2019-12-19 05:34:48,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:48,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:34:48,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761410291] [2019-12-19 05:34:48,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:34:48,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:48,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:34:48,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:34:48,951 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-19 05:34:49,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:49,051 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-19 05:34:49,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:34:49,052 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-19 05:34:49,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:49,055 INFO L225 Difference]: With dead ends: 404 [2019-12-19 05:34:49,056 INFO L226 Difference]: Without dead ends: 350 [2019-12-19 05:34:49,056 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:34:49,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-19 05:34:49,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-19 05:34:49,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-19 05:34:49,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-19 05:34:49,074 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-19 05:34:49,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:49,075 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-19 05:34:49,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:34:49,075 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-19 05:34:49,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:34:49,079 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:49,080 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:49,080 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:49,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:49,081 INFO L82 PathProgramCache]: Analyzing trace with hash 608973843, now seen corresponding path program 1 times [2019-12-19 05:34:49,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:49,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079062919] [2019-12-19 05:34:49,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:49,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:49,301 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079062919] [2019-12-19 05:34:49,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:49,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:34:49,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2237976] [2019-12-19 05:34:49,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:34:49,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:49,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:34:49,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:34:49,303 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 8 states. [2019-12-19 05:34:49,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:49,422 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-19 05:34:49,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:34:49,422 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 05:34:49,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:49,425 INFO L225 Difference]: With dead ends: 521 [2019-12-19 05:34:49,425 INFO L226 Difference]: Without dead ends: 278 [2019-12-19 05:34:49,426 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:34:49,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-19 05:34:49,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-12-19 05:34:49,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-12-19 05:34:49,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 727 transitions. [2019-12-19 05:34:49,439 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 727 transitions. Word has length 35 [2019-12-19 05:34:49,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:49,439 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 727 transitions. [2019-12-19 05:34:49,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:34:49,440 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 727 transitions. [2019-12-19 05:34:49,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:34:49,442 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:49,442 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:49,442 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:49,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:49,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1362281377, now seen corresponding path program 2 times [2019-12-19 05:34:49,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:49,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122865610] [2019-12-19 05:34:49,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:49,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:49,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122865610] [2019-12-19 05:34:49,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:49,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:34:49,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923070290] [2019-12-19 05:34:49,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:34:49,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:49,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:34:49,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:34:49,673 INFO L87 Difference]: Start difference. First operand 278 states and 727 transitions. Second operand 8 states. [2019-12-19 05:34:49,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:49,818 INFO L93 Difference]: Finished difference Result 440 states and 1186 transitions. [2019-12-19 05:34:49,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:34:49,820 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 05:34:49,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:49,824 INFO L225 Difference]: With dead ends: 440 [2019-12-19 05:34:49,824 INFO L226 Difference]: Without dead ends: 254 [2019-12-19 05:34:49,824 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:34:49,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-19 05:34:49,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2019-12-19 05:34:49,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-12-19 05:34:49,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 673 transitions. [2019-12-19 05:34:49,833 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 673 transitions. Word has length 35 [2019-12-19 05:34:49,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:49,834 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 673 transitions. [2019-12-19 05:34:49,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:34:49,834 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 673 transitions. [2019-12-19 05:34:49,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:34:49,836 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:49,841 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:49,841 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:49,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:49,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1957742869, now seen corresponding path program 3 times [2019-12-19 05:34:49,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:49,847 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300766794] [2019-12-19 05:34:49,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:50,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:50,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300766794] [2019-12-19 05:34:50,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:50,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:34:50,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903861863] [2019-12-19 05:34:50,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:34:50,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:50,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:34:50,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:34:50,037 INFO L87 Difference]: Start difference. First operand 254 states and 673 transitions. Second operand 8 states. [2019-12-19 05:34:50,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:50,144 INFO L93 Difference]: Finished difference Result 200 states and 511 transitions. [2019-12-19 05:34:50,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:34:50,144 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 05:34:50,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:50,145 INFO L225 Difference]: With dead ends: 200 [2019-12-19 05:34:50,145 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:34:50,146 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:34:50,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:34:50,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:34:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:34:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:34:50,147 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-19 05:34:50,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:50,147 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:34:50,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:34:50,147 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:34:50,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:34:50,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:34:50 BasicIcfg [2019-12-19 05:34:50,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:34:50,160 INFO L168 Benchmark]: Toolchain (without parser) took 3909.41 ms. Allocated memory was 137.9 MB in the beginning and 253.2 MB in the end (delta: 115.3 MB). Free memory was 100.8 MB in the beginning and 172.1 MB in the end (delta: -71.3 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:50,161 INFO L168 Benchmark]: CDTParser took 1.23 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. [2019-12-19 05:34:50,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.09 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.5 MB in the beginning and 158.4 MB in the end (delta: -57.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:50,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.42 ms. Allocated memory is still 201.3 MB. Free memory was 158.4 MB in the beginning and 156.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:50,171 INFO L168 Benchmark]: Boogie Preprocessor took 25.84 ms. Allocated memory is still 201.3 MB. Free memory was 156.2 MB in the beginning and 154.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:50,171 INFO L168 Benchmark]: RCFGBuilder took 426.17 ms. Allocated memory is still 201.3 MB. Free memory was 154.8 MB in the beginning and 134.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:50,173 INFO L168 Benchmark]: TraceAbstraction took 2648.61 ms. Allocated memory was 201.3 MB in the beginning and 253.2 MB in the end (delta: 51.9 MB). Free memory was 133.4 MB in the beginning and 172.1 MB in the end (delta: -38.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:50,189 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23 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 751.09 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.5 MB in the beginning and 158.4 MB in the end (delta: -57.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.42 ms. Allocated memory is still 201.3 MB. Free memory was 158.4 MB in the beginning and 156.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.84 ms. Allocated memory is still 201.3 MB. Free memory was 156.2 MB in the beginning and 154.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 426.17 ms. Allocated memory is still 201.3 MB. Free memory was 154.8 MB in the beginning and 134.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2648.61 ms. Allocated memory was 201.3 MB in the beginning and 253.2 MB in the end (delta: 51.9 MB). Free memory was 133.4 MB in the beginning and 172.1 MB in the end (delta: -38.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 284 SDtfs, 395 SDslu, 764 SDs, 0 SdLazy, 113 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 21102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...