/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:10:02,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:10:02,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:10:02,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:10:02,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:10:02,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:10:02,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:10:02,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:10:02,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:10:02,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:10:02,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:10:02,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:10:02,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:10:02,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:10:02,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:10:02,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:10:02,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:10:02,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:10:02,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:10:02,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:10:02,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:10:02,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:10:02,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:10:02,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:10:02,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:10:02,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:10:02,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:10:02,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:10:02,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:10:02,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:10:02,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:10:02,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:10:02,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:10:02,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:10:02,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:10:02,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:10:02,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:10:02,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:10:02,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:10:02,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:10:02,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:10:02,951 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-VariableLbe.epf [2020-04-18 02:10:02,975 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:10:02,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:10:02,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:10:02,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:10:02,978 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:10:02,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:10:02,979 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:10:02,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:10:02,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:10:02,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:10:02,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:10:02,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:10:02,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:10:02,982 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:10:02,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:10:02,982 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:10:02,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:10:02,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:10:02,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:10:02,983 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:10:02,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:10:02,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:10:02,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:10:02,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:10:02,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:10:02,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:10:02,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:10:02,984 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:10:02,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:10:02,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:10:03,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:10:03,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:10:03,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:10:03,274 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:10:03,274 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:10:03,275 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i [2020-04-18 02:10:03,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a291bc6/05cfd125d6a740089dace42251f9e003/FLAG0fb7ca781 [2020-04-18 02:10:03,875 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:10:03,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i [2020-04-18 02:10:03,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a291bc6/05cfd125d6a740089dace42251f9e003/FLAG0fb7ca781 [2020-04-18 02:10:04,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a291bc6/05cfd125d6a740089dace42251f9e003 [2020-04-18 02:10:04,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:10:04,231 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:10:04,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:10:04,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:10:04,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:10:04,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:10:04" (1/1) ... [2020-04-18 02:10:04,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27931e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04, skipping insertion in model container [2020-04-18 02:10:04,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:10:04" (1/1) ... [2020-04-18 02:10:04,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:10:04,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:10:04,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:10:04,720 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:10:04,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:10:04,857 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:10:04,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04 WrapperNode [2020-04-18 02:10:04,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:10:04,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:10:04,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:10:04,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:10:04,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04" (1/1) ... [2020-04-18 02:10:04,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04" (1/1) ... [2020-04-18 02:10:04,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:10:04,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:10:04,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:10:04,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:10:04,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04" (1/1) ... [2020-04-18 02:10:04,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04" (1/1) ... [2020-04-18 02:10:04,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04" (1/1) ... [2020-04-18 02:10:04,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04" (1/1) ... [2020-04-18 02:10:04,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04" (1/1) ... [2020-04-18 02:10:04,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04" (1/1) ... [2020-04-18 02:10:04,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04" (1/1) ... [2020-04-18 02:10:04,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:10:04,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:10:04,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:10:04,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:10:04,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:10:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:10:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:10:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:10:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:10:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:10:04,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:10:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:10:04,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:10:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:10:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:10:04,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:10:04,993 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 02:10:05,370 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:10:05,371 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:10:05,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:10:05 BoogieIcfgContainer [2020-04-18 02:10:05,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:10:05,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:10:05,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:10:05,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:10:05,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:10:04" (1/3) ... [2020-04-18 02:10:05,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b878b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:10:05, skipping insertion in model container [2020-04-18 02:10:05,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:10:04" (2/3) ... [2020-04-18 02:10:05,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b878b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:10:05, skipping insertion in model container [2020-04-18 02:10:05,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:10:05" (3/3) ... [2020-04-18 02:10:05,389 INFO L109 eAbstractionObserver]: Analyzing ICFG safe006_tso.oepc.i [2020-04-18 02:10:05,397 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:10:05,398 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:10:05,403 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:10:05,404 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:10:05,429 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,429 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,429 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,430 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,430 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,430 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,432 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,432 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,432 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,432 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,433 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,433 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,439 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,439 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,439 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,440 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,444 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,444 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,445 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,445 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:10:05,458 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 02:10:05,474 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:10:05,474 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:10:05,475 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:10:05,475 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:10:05,475 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:10:05,475 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:10:05,475 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:10:05,476 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:10:05,490 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-04-18 02:10:05,492 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 02:10:05,533 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-18 02:10:05,533 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:10:05,538 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 02:10:05,540 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 02:10:05,559 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-18 02:10:05,560 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:10:05,561 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 02:10:05,562 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-04-18 02:10:05,564 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:10:06,894 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1165 [2020-04-18 02:10:06,894 INFO L214 etLargeBlockEncoding]: Total number of compositions: 48 [2020-04-18 02:10:06,898 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-04-18 02:10:06,912 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-04-18 02:10:06,914 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-04-18 02:10:06,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 02:10:06,920 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:10:06,921 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-18 02:10:06,922 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:10:06,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:10:06,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 1 times [2020-04-18 02:10:06,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:10:06,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352859358] [2020-04-18 02:10:06,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:10:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:10:07,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:10:07,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352859358] [2020-04-18 02:10:07,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:10:07,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:10:07,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951054874] [2020-04-18 02:10:07,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:10:07,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:10:07,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:10:07,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:10:07,230 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-04-18 02:10:07,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:10:07,268 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-04-18 02:10:07,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:10:07,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-04-18 02:10:07,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:10:07,281 INFO L225 Difference]: With dead ends: 70 [2020-04-18 02:10:07,281 INFO L226 Difference]: Without dead ends: 54 [2020-04-18 02:10:07,282 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:10:07,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-04-18 02:10:07,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-04-18 02:10:07,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-04-18 02:10:07,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-04-18 02:10:07,319 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-04-18 02:10:07,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:10:07,319 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-04-18 02:10:07,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:10:07,320 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-04-18 02:10:07,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 02:10:07,320 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:10:07,320 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:10:07,321 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:10:07,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:10:07,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 1 times [2020-04-18 02:10:07,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:10:07,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002078351] [2020-04-18 02:10:07,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:10:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:10:07,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:10:07,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002078351] [2020-04-18 02:10:07,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:10:07,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:10:07,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762302345] [2020-04-18 02:10:07,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:10:07,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:10:07,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:10:07,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:10:07,399 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 3 states. [2020-04-18 02:10:07,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:10:07,408 INFO L93 Difference]: Finished difference Result 51 states and 101 transitions. [2020-04-18 02:10:07,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:10:07,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-18 02:10:07,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:10:07,411 INFO L225 Difference]: With dead ends: 51 [2020-04-18 02:10:07,411 INFO L226 Difference]: Without dead ends: 51 [2020-04-18 02:10:07,412 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:10:07,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-04-18 02:10:07,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-04-18 02:10:07,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-04-18 02:10:07,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 101 transitions. [2020-04-18 02:10:07,426 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 101 transitions. Word has length 7 [2020-04-18 02:10:07,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:10:07,428 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 101 transitions. [2020-04-18 02:10:07,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:10:07,428 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 101 transitions. [2020-04-18 02:10:07,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 02:10:07,429 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:10:07,429 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:10:07,429 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:10:07,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:10:07,430 INFO L82 PathProgramCache]: Analyzing trace with hash -449361261, now seen corresponding path program 1 times [2020-04-18 02:10:07,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:10:07,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577180404] [2020-04-18 02:10:07,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:10:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:10:07,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:10:07,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577180404] [2020-04-18 02:10:07,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:10:07,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:10:07,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246633285] [2020-04-18 02:10:07,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:10:07,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:10:07,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:10:07,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:10:07,503 INFO L87 Difference]: Start difference. First operand 51 states and 101 transitions. Second operand 4 states. [2020-04-18 02:10:07,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:10:07,526 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-04-18 02:10:07,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:10:07,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-04-18 02:10:07,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:10:07,527 INFO L225 Difference]: With dead ends: 60 [2020-04-18 02:10:07,527 INFO L226 Difference]: Without dead ends: 36 [2020-04-18 02:10:07,528 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:10:07,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-04-18 02:10:07,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-04-18 02:10:07,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-04-18 02:10:07,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-04-18 02:10:07,533 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 8 [2020-04-18 02:10:07,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:10:07,534 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-04-18 02:10:07,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:10:07,534 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-04-18 02:10:07,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 02:10:07,535 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:10:07,535 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:10:07,535 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:10:07,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:10:07,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 1 times [2020-04-18 02:10:07,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:10:07,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677290463] [2020-04-18 02:10:07,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:10:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:10:07,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:10:07,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677290463] [2020-04-18 02:10:07,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:10:07,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:10:07,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390950052] [2020-04-18 02:10:07,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:10:07,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:10:07,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:10:07,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:10:07,598 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-04-18 02:10:07,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:10:07,616 INFO L93 Difference]: Finished difference Result 30 states and 50 transitions. [2020-04-18 02:10:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:10:07,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 02:10:07,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:10:07,617 INFO L225 Difference]: With dead ends: 30 [2020-04-18 02:10:07,618 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:10:07,618 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:10:07,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:10:07,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:10:07,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:10:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:10:07,619 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-04-18 02:10:07,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:10:07,619 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:10:07,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:10:07,619 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:10:07,620 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:10:07,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:10:07 BasicIcfg [2020-04-18 02:10:07,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:10:07,626 INFO L168 Benchmark]: Toolchain (without parser) took 3411.55 ms. Allocated memory was 138.9 MB in the beginning and 246.4 MB in the end (delta: 107.5 MB). Free memory was 102.3 MB in the beginning and 182.7 MB in the end (delta: -80.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-04-18 02:10:07,626 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 138.9 MB. Free memory is still 121.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 02:10:07,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.49 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 100.3 MB in the beginning and 161.1 MB in the end (delta: -60.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-04-18 02:10:07,628 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.36 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:10:07,629 INFO L168 Benchmark]: Boogie Preprocessor took 25.08 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 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. [2020-04-18 02:10:07,629 INFO L168 Benchmark]: RCFGBuilder took 444.59 ms. Allocated memory is still 203.9 MB. Free memory was 157.7 MB in the beginning and 137.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:10:07,640 INFO L168 Benchmark]: TraceAbstraction took 2243.83 ms. Allocated memory was 203.9 MB in the beginning and 246.4 MB in the end (delta: 42.5 MB). Free memory was 137.7 MB in the beginning and 182.7 MB in the end (delta: -45.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 02:10:07,646 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 138.9 MB. Free memory is still 121.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 626.49 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 100.3 MB in the beginning and 161.1 MB in the end (delta: -60.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.36 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.08 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 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 444.59 ms. Allocated memory is still 203.9 MB. Free memory was 157.7 MB in the beginning and 137.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2243.83 ms. Allocated memory was 203.9 MB in the beginning and 246.4 MB in the end (delta: 42.5 MB). Free memory was 137.7 MB in the beginning and 182.7 MB in the end (delta: -45.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 61 ProgramPointsBefore, 22 ProgramPointsAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 361 VarBasedMoverChecksPositive, 17 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1165 CheckedPairsTotal, 48 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 45 SDtfs, 33 SDslu, 28 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...