/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 02:45:11,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 02:45:11,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 02:45:11,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 02:45:11,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 02:45:11,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 02:45:11,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 02:45:11,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 02:45:11,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 02:45:11,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 02:45:11,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 02:45:11,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 02:45:11,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 02:45:11,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 02:45:11,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 02:45:11,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 02:45:11,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 02:45:11,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 02:45:11,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 02:45:11,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 02:45:11,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 02:45:11,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 02:45:11,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 02:45:11,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 02:45:11,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 02:45:11,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 02:45:11,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 02:45:11,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 02:45:11,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 02:45:11,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 02:45:11,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 02:45:11,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 02:45:11,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 02:45:11,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 02:45:11,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 02:45:11,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 02:45:11,945 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-PN-NoLbe.epf [2021-03-11 02:45:11,971 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 02:45:11,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 02:45:11,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 02:45:11,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 02:45:11,973 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 02:45:11,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 02:45:11,974 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 02:45:11,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 02:45:11,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 02:45:11,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 02:45:11,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 02:45:11,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 02:45:11,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 02:45:11,975 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 02:45:11,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 02:45:11,975 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 02:45:11,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 02:45:11,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 02:45:11,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 02:45:11,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 02:45:11,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 02:45:11,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:45:11,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 02:45:11,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 02:45:11,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 02:45:11,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 02:45:11,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 02:45:11,976 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 02:45:11,976 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 02:45:11,976 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 02:45:12,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 02:45:12,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 02:45:12,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 02:45:12,213 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 02:45:12,214 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 02:45:12,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2021-03-11 02:45:12,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cee8abe3/aa0648c9dac14ff7a4d7405aace6ff92/FLAG04d1b29ae [2021-03-11 02:45:12,729 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 02:45:12,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2021-03-11 02:45:12,743 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cee8abe3/aa0648c9dac14ff7a4d7405aace6ff92/FLAG04d1b29ae [2021-03-11 02:45:12,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cee8abe3/aa0648c9dac14ff7a4d7405aace6ff92 [2021-03-11 02:45:12,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 02:45:12,802 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 02:45:12,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 02:45:12,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 02:45:12,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 02:45:12,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:45:12" (1/1) ... [2021-03-11 02:45:12,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1945bd8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:12, skipping insertion in model container [2021-03-11 02:45:12,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:45:12" (1/1) ... [2021-03-11 02:45:12,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 02:45:12,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 02:45:13,205 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2021-03-11 02:45:13,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:45:13,218 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 02:45:13,241 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2021-03-11 02:45:13,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:45:13,423 INFO L208 MainTranslator]: Completed translation [2021-03-11 02:45:13,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:13 WrapperNode [2021-03-11 02:45:13,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 02:45:13,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 02:45:13,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 02:45:13,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 02:45:13,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:13" (1/1) ... [2021-03-11 02:45:13,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:13" (1/1) ... [2021-03-11 02:45:13,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 02:45:13,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 02:45:13,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 02:45:13,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 02:45:13,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:13" (1/1) ... [2021-03-11 02:45:13,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:13" (1/1) ... [2021-03-11 02:45:13,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:13" (1/1) ... [2021-03-11 02:45:13,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:13" (1/1) ... [2021-03-11 02:45:13,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:13" (1/1) ... [2021-03-11 02:45:13,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:13" (1/1) ... [2021-03-11 02:45:13,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:13" (1/1) ... [2021-03-11 02:45:13,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 02:45:13,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 02:45:13,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 02:45:13,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 02:45:13,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:13" (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 [2021-03-11 02:45:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 02:45:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 02:45:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 02:45:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-11 02:45:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 02:45:13,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 02:45:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 02:45:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 02:45:13,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 02:45:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 02:45:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 02:45:13,557 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 02:45:13,911 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 02:45:13,912 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-03-11 02:45:13,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:45:13 BoogieIcfgContainer [2021-03-11 02:45:13,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 02:45:13,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 02:45:13,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 02:45:13,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 02:45:13,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:45:12" (1/3) ... [2021-03-11 02:45:13,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b88fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:45:13, skipping insertion in model container [2021-03-11 02:45:13,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:45:13" (2/3) ... [2021-03-11 02:45:13,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b88fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:45:13, skipping insertion in model container [2021-03-11 02:45:13,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:45:13" (3/3) ... [2021-03-11 02:45:13,918 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2021-03-11 02:45:13,921 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 02:45:13,924 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-03-11 02:45:13,925 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 02:45:13,948 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,948 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,948 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,948 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,949 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,949 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,949 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,949 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,949 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,949 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,949 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,949 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,949 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,950 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,950 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,950 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,950 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,950 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,950 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,950 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,950 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,950 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,950 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,950 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,951 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,951 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,951 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,951 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,952 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,952 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,952 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,952 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,953 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,953 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,953 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:45:13,959 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-11 02:45:13,970 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-11 02:45:13,983 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 02:45:13,983 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 02:45:13,983 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 02:45:13,983 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 02:45:13,983 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 02:45:13,983 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 02:45:13,983 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 02:45:13,983 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 02:45:13,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 92 transitions, 192 flow [2021-03-11 02:45:14,011 INFO L129 PetriNetUnfolder]: 5/103 cut-off events. [2021-03-11 02:45:14,011 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 02:45:14,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 5/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 178 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 58. Up to 3 conditions per place. [2021-03-11 02:45:14,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 92 transitions, 192 flow [2021-03-11 02:45:14,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 82 transitions, 170 flow [2021-03-11 02:45:14,020 INFO L129 PetriNetUnfolder]: 1/30 cut-off events. [2021-03-11 02:45:14,020 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:45:14,020 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:45:14,020 INFO L255 CegarLoopForPetriNet]: 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] [2021-03-11 02:45:14,020 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:45:14,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:45:14,024 INFO L82 PathProgramCache]: Analyzing trace with hash 595152240, now seen corresponding path program 1 times [2021-03-11 02:45:14,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:45:14,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007229658] [2021-03-11 02:45:14,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:45:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:45:14,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:45:14,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:45:14,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:45:14,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:45:14,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:45:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:45:14,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007229658] [2021-03-11 02:45:14,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:45:14,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 02:45:14,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794199128] [2021-03-11 02:45:14,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 02:45:14,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:45:14,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 02:45:14,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 02:45:14,292 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2021-03-11 02:45:14,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 82 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:45:14,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2021-03-11 02:45:14,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:45:14,375 INFO L129 PetriNetUnfolder]: 0/76 cut-off events. [2021-03-11 02:45:14,375 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 02:45:14,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 76 events. 0/76 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 1/74 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-03-11 02:45:14,376 INFO L132 encePairwiseOnDemand]: 81/92 looper letters, 9 selfloop transitions, 9 changer transitions 0/76 dead transitions. [2021-03-11 02:45:14,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 76 transitions, 194 flow [2021-03-11 02:45:14,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 02:45:14,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 02:45:14,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 461 transitions. [2021-03-11 02:45:14,390 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7158385093167702 [2021-03-11 02:45:14,391 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 461 transitions. [2021-03-11 02:45:14,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 461 transitions. [2021-03-11 02:45:14,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:45:14,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 461 transitions. [2021-03-11 02:45:14,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 65.85714285714286) internal successors, (461), 7 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 92.0) internal successors, (736), 8 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,406 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 92.0) internal successors, (736), 8 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,408 INFO L185 Difference]: Start difference. First operand has 84 places, 82 transitions, 170 flow. Second operand 7 states and 461 transitions. [2021-03-11 02:45:14,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 76 transitions, 194 flow [2021-03-11 02:45:14,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 76 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 02:45:14,418 INFO L241 Difference]: Finished difference. Result has 84 places, 76 transitions, 172 flow [2021-03-11 02:45:14,419 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=172, PETRI_PLACES=84, PETRI_TRANSITIONS=76} [2021-03-11 02:45:14,423 INFO L335 CegarLoopForPetriNet]: 84 programPoint places, 0 predicate places. [2021-03-11 02:45:14,423 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 76 transitions, 172 flow [2021-03-11 02:45:14,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,423 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:45:14,423 INFO L255 CegarLoopForPetriNet]: 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] [2021-03-11 02:45:14,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 02:45:14,424 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:45:14,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:45:14,424 INFO L82 PathProgramCache]: Analyzing trace with hash -340834706, now seen corresponding path program 1 times [2021-03-11 02:45:14,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:45:14,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753817587] [2021-03-11 02:45:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:45:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:45:14,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:45:14,514 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-03-11 02:45:14,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:45:14,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:45:14,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:45:14,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:45:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:45:14,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753817587] [2021-03-11 02:45:14,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:45:14,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 02:45:14,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375903121] [2021-03-11 02:45:14,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 02:45:14,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:45:14,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 02:45:14,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 02:45:14,539 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2021-03-11 02:45:14,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 76 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:45:14,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2021-03-11 02:45:14,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:45:14,597 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2021-03-11 02:45:14,598 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-11 02:45:14,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 74 events. 0/74 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 1/72 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-11 02:45:14,599 INFO L132 encePairwiseOnDemand]: 85/92 looper letters, 11 selfloop transitions, 2 changer transitions 6/74 dead transitions. [2021-03-11 02:45:14,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 74 transitions, 202 flow [2021-03-11 02:45:14,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 02:45:14,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 02:45:14,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 396 transitions. [2021-03-11 02:45:14,602 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.717391304347826 [2021-03-11 02:45:14,602 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 396 transitions. [2021-03-11 02:45:14,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 396 transitions. [2021-03-11 02:45:14,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:45:14,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 396 transitions. [2021-03-11 02:45:14,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,604 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,605 INFO L185 Difference]: Start difference. First operand has 84 places, 76 transitions, 172 flow. Second operand 6 states and 396 transitions. [2021-03-11 02:45:14,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 74 transitions, 202 flow [2021-03-11 02:45:14,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 74 transitions, 184 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-11 02:45:14,607 INFO L241 Difference]: Finished difference. Result has 81 places, 68 transitions, 142 flow [2021-03-11 02:45:14,608 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=142, PETRI_PLACES=81, PETRI_TRANSITIONS=68} [2021-03-11 02:45:14,608 INFO L335 CegarLoopForPetriNet]: 84 programPoint places, -3 predicate places. [2021-03-11 02:45:14,608 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 68 transitions, 142 flow [2021-03-11 02:45:14,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,608 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:45:14,609 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:45:14,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 02:45:14,609 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:45:14,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:45:14,610 INFO L82 PathProgramCache]: Analyzing trace with hash 375726026, now seen corresponding path program 1 times [2021-03-11 02:45:14,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:45:14,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830595654] [2021-03-11 02:45:14,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:45:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:45:14,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:45:14,680 INFO L142 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size [2021-03-11 02:45:14,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:45:14,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:45:14,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:45:14,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:45:14,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:45:14,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830595654] [2021-03-11 02:45:14,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:45:14,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 02:45:14,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897052694] [2021-03-11 02:45:14,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 02:45:14,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:45:14,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 02:45:14,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 02:45:14,700 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 92 [2021-03-11 02:45:14,700 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 68 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,700 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:45:14,700 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 92 [2021-03-11 02:45:14,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:45:14,735 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-03-11 02:45:14,735 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:45:14,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-11 02:45:14,736 INFO L132 encePairwiseOnDemand]: 87/92 looper letters, 7 selfloop transitions, 4 changer transitions 5/66 dead transitions. [2021-03-11 02:45:14,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 66 transitions, 160 flow [2021-03-11 02:45:14,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 02:45:14,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 02:45:14,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 432 transitions. [2021-03-11 02:45:14,738 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.782608695652174 [2021-03-11 02:45:14,738 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 432 transitions. [2021-03-11 02:45:14,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 432 transitions. [2021-03-11 02:45:14,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:45:14,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 432 transitions. [2021-03-11 02:45:14,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,744 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,744 INFO L185 Difference]: Start difference. First operand has 81 places, 68 transitions, 142 flow. Second operand 6 states and 432 transitions. [2021-03-11 02:45:14,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 66 transitions, 160 flow [2021-03-11 02:45:14,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 66 transitions, 156 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 02:45:14,745 INFO L241 Difference]: Finished difference. Result has 73 places, 61 transitions, 132 flow [2021-03-11 02:45:14,746 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=132, PETRI_PLACES=73, PETRI_TRANSITIONS=61} [2021-03-11 02:45:14,746 INFO L335 CegarLoopForPetriNet]: 84 programPoint places, -11 predicate places. [2021-03-11 02:45:14,746 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 61 transitions, 132 flow [2021-03-11 02:45:14,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,746 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:45:14,746 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:45:14,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 02:45:14,747 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:45:14,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:45:14,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1509097974, now seen corresponding path program 1 times [2021-03-11 02:45:14,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:45:14,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948450360] [2021-03-11 02:45:14,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:45:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:45:14,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:45:14,820 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-03-11 02:45:14,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:45:14,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:45:14,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:45:14,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:45:14,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:45:14,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:45:14,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948450360] [2021-03-11 02:45:14,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:45:14,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 02:45:14,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083381208] [2021-03-11 02:45:14,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 02:45:14,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:45:14,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 02:45:14,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 02:45:14,837 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2021-03-11 02:45:14,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 61 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:45:14,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2021-03-11 02:45:14,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:45:14,872 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-03-11 02:45:14,872 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 02:45:14,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 59 events. 0/59 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-11 02:45:14,872 INFO L132 encePairwiseOnDemand]: 86/92 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2021-03-11 02:45:14,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 59 transitions, 152 flow [2021-03-11 02:45:14,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 02:45:14,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 02:45:14,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 391 transitions. [2021-03-11 02:45:14,873 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2021-03-11 02:45:14,873 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 391 transitions. [2021-03-11 02:45:14,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 391 transitions. [2021-03-11 02:45:14,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:45:14,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 391 transitions. [2021-03-11 02:45:14,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,876 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,876 INFO L185 Difference]: Start difference. First operand has 73 places, 61 transitions, 132 flow. Second operand 6 states and 391 transitions. [2021-03-11 02:45:14,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 59 transitions, 152 flow [2021-03-11 02:45:14,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 59 transitions, 145 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 02:45:14,877 INFO L241 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2021-03-11 02:45:14,878 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2021-03-11 02:45:14,878 INFO L335 CegarLoopForPetriNet]: 84 programPoint places, -17 predicate places. [2021-03-11 02:45:14,878 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2021-03-11 02:45:14,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:45:14,879 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 02:45:14,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:45:14 BasicIcfg [2021-03-11 02:45:14,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 02:45:14,884 INFO L168 Benchmark]: Toolchain (without parser) took 2121.85 ms. Allocated memory was 375.4 MB in the beginning and 455.1 MB in the end (delta: 79.7 MB). Free memory was 337.3 MB in the beginning and 336.8 MB in the end (delta: 532.9 kB). Peak memory consumption was 83.6 MB. Max. memory is 16.0 GB. [2021-03-11 02:45:14,884 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 375.4 MB. Free memory was 357.1 MB in the beginning and 357.1 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 02:45:14,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 619.62 ms. Allocated memory is still 375.4 MB. Free memory was 336.7 MB in the beginning and 326.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 89.6 MB. Max. memory is 16.0 GB. [2021-03-11 02:45:14,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.72 ms. Allocated memory is still 375.4 MB. Free memory was 326.3 MB in the beginning and 324.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:45:14,888 INFO L168 Benchmark]: Boogie Preprocessor took 20.71 ms. Allocated memory is still 375.4 MB. Free memory was 324.2 MB in the beginning and 321.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:45:14,888 INFO L168 Benchmark]: RCFGBuilder took 426.61 ms. Allocated memory is still 375.4 MB. Free memory was 321.0 MB in the beginning and 283.3 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.0 GB. [2021-03-11 02:45:14,888 INFO L168 Benchmark]: TraceAbstraction took 969.33 ms. Allocated memory was 375.4 MB in the beginning and 455.1 MB in the end (delta: 79.7 MB). Free memory was 282.2 MB in the beginning and 336.8 MB in the end (delta: -54.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:45:14,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 375.4 MB. Free memory was 357.1 MB in the beginning and 357.1 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 619.62 ms. Allocated memory is still 375.4 MB. Free memory was 336.7 MB in the beginning and 326.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 89.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.72 ms. Allocated memory is still 375.4 MB. Free memory was 326.3 MB in the beginning and 324.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.71 ms. Allocated memory is still 375.4 MB. Free memory was 324.2 MB in the beginning and 321.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 426.61 ms. Allocated memory is still 375.4 MB. Free memory was 321.0 MB in the beginning and 283.3 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 969.33 ms. Allocated memory was 375.4 MB in the beginning and 455.1 MB in the end (delta: 79.7 MB). Free memory was 282.2 MB in the beginning and 336.8 MB in the end (delta: -54.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 87 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 898.7ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 295.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 32.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 48 SDtfs, 46 SDslu, 55 SDs, 0 SdLazy, 65 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 97.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=1, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.1ms SsaConstructionTime, 73.9ms SatisfiabilityAnalysisTime, 266.9ms InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 203 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...