/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 15:30:29,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:30:29,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:30:29,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 15:30:30,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-07 15:30:30,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-07 15:30:30,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-07 15:30:30,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-07 15:30:30,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-07 15:30:30,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-07 15:30:30,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-07 15:30:30,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-07 15:30:30,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 15:30:30,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 15:30:30,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 15:30:30,087 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-07 15:30:30,146 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:30:30,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:30:30,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:30:30,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:30:30,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:30:30,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:30:30,153 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:30:30,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:30:30,153 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:30:30,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:30:30,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:30:30,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:30:30,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:30:30,155 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-07 15:30:30,156 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-07 15:30:30,156 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-07 15:30:30,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:30:30,156 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-07 15:30:30,156 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-07 15:30:30,156 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-07 15:30:30,157 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:30:30,157 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:30:30,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:30:30,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:30:30,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:30:30,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:30:30,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:30:30,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:30:30,158 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-07 15:30:30,158 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-07 15:30:30,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:30:30,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-07 15:30:30,159 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:30:30,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:30:30,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:30:30,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:30:30,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:30:30,704 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:30:30,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2021-10-07 15:30:30,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbb89ee44/6b7c9434295d4d3f93d0d49612093c50/FLAG1d91674d1 [2021-10-07 15:30:31,351 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:30:31,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2021-10-07 15:30:31,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbb89ee44/6b7c9434295d4d3f93d0d49612093c50/FLAG1d91674d1 [2021-10-07 15:30:31,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbb89ee44/6b7c9434295d4d3f93d0d49612093c50 [2021-10-07 15:30:31,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:30:31,690 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-07 15:30:31,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:30:31,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:30:31,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:30:31,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:30:31" (1/1) ... [2021-10-07 15:30:31,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76fcebd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:31, skipping insertion in model container [2021-10-07 15:30:31,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:30:31" (1/1) ... [2021-10-07 15:30:31,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:30:31,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:30:31,926 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c[2453,2466] [2021-10-07 15:30:31,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:30:31,961 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:30:32,019 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c[2453,2466] [2021-10-07 15:30:32,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:30:32,053 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:30:32,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:32 WrapperNode [2021-10-07 15:30:32,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:30:32,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:30:32,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:30:32,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:30:32,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:32" (1/1) ... [2021-10-07 15:30:32,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:32" (1/1) ... [2021-10-07 15:30:32,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:30:32,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:30:32,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:30:32,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:30:32,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:32" (1/1) ... [2021-10-07 15:30:32,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:32" (1/1) ... [2021-10-07 15:30:32,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:32" (1/1) ... [2021-10-07 15:30:32,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:32" (1/1) ... [2021-10-07 15:30:32,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:32" (1/1) ... [2021-10-07 15:30:32,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:32" (1/1) ... [2021-10-07 15:30:32,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:32" (1/1) ... [2021-10-07 15:30:32,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:30:32,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:30:32,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:30:32,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:30:32,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:32" (1/1) ... [2021-10-07 15:30:32,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:30:32,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:30:32,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-07 15:30:32,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-07 15:30:32,349 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:30:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:30:32,350 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:30:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:30:32,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-07 15:30:32,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:30:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-07 15:30:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:30:32,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:30:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:30:32,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-07 15:30:32,356 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 15:30:32,900 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:30:32,901 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-07 15:30:32,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:30:32 BoogieIcfgContainer [2021-10-07 15:30:32,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:30:32,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:30:32,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:30:32,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:30:32,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:30:31" (1/3) ... [2021-10-07 15:30:32,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7078ab54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:30:32, skipping insertion in model container [2021-10-07 15:30:32,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:32" (2/3) ... [2021-10-07 15:30:32,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7078ab54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:30:32, skipping insertion in model container [2021-10-07 15:30:32,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:30:32" (3/3) ... [2021-10-07 15:30:32,914 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2021-10-07 15:30:32,922 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:30:32,922 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-10-07 15:30:32,923 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:30:32,963 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,963 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,964 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,964 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,964 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,964 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,965 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,965 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,965 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,965 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,966 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,966 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,966 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,966 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,967 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,967 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,967 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,967 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,968 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,968 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,968 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,968 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,969 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,969 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,969 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,969 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,969 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,972 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,972 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,972 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,972 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,972 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,976 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,976 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,976 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,976 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,977 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,977 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,977 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,977 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,978 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,978 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,978 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,979 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,979 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,979 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,980 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,980 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,980 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,980 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,981 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,981 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,981 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,981 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,981 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,982 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,982 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,982 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,983 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,983 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,983 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,983 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,984 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,984 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,984 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,984 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,985 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,985 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,985 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,985 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,986 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,986 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,986 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,987 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,987 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,987 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,987 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,987 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,988 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,988 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,988 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,988 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,988 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,989 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,993 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,993 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,993 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,993 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,994 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,994 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,994 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:32,994 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:33,000 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:33,000 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:33,001 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:33,001 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:33,001 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:33,001 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:33,001 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:33,002 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:33,008 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-07 15:30:33,067 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:30:33,076 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-07 15:30:33,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-10-07 15:30:33,097 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:30:33,111 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 156 transitions, 328 flow [2021-10-07 15:30:33,114 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 156 transitions, 328 flow [2021-10-07 15:30:33,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 148 places, 156 transitions, 328 flow [2021-10-07 15:30:33,187 INFO L129 PetriNetUnfolder]: 15/154 cut-off events. [2021-10-07 15:30:33,188 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-07 15:30:33,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 154 events. 15/154 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 275 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2021-10-07 15:30:33,206 INFO L116 LiptonReduction]: Number of co-enabled transitions 3696 [2021-10-07 15:30:44,850 INFO L131 LiptonReduction]: Checked pairs total: 3755 [2021-10-07 15:30:44,851 INFO L133 LiptonReduction]: Total number of compositions: 201 [2021-10-07 15:30:44,867 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 23 transitions, 62 flow [2021-10-07 15:30:44,880 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 39 states, 29 states have (on average 2.0344827586206895) internal successors, (59), 38 states have internal predecessors, (59), 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) [2021-10-07 15:30:44,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 29 states have (on average 2.0344827586206895) internal successors, (59), 38 states have internal predecessors, (59), 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) [2021-10-07 15:30:44,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-07 15:30:44,894 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:44,895 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-07 15:30:44,895 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-07 15:30:44,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:44,902 INFO L82 PathProgramCache]: Analyzing trace with hash 671, now seen corresponding path program 1 times [2021-10-07 15:30:44,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:44,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672085792] [2021-10-07 15:30:44,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:44,916 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:44,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:44,917 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:30:44,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-07 15:30:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:30:44,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-07 15:30:44,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:30:44,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:44,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:30:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:44,998 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:30:44,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672085792] [2021-10-07 15:30:44,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672085792] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:30:44,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:30:44,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-07 15:30:45,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754239983] [2021-10-07 15:30:45,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-07 15:30:45,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:30:45,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-07 15:30:45,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-07 15:30:45,027 INFO L87 Difference]: Start difference. First operand has 39 states, 29 states have (on average 2.0344827586206895) internal successors, (59), 38 states have internal predecessors, (59), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2021-10-07 15:30:45,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:30:45,042 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2021-10-07 15:30:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-07 15:30:45,044 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2021-10-07 15:30:45,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:30:45,054 INFO L225 Difference]: With dead ends: 36 [2021-10-07 15:30:45,054 INFO L226 Difference]: Without dead ends: 36 [2021-10-07 15:30:45,056 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-07 15:30:45,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-07 15:30:45,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-07 15:30:45,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.9310344827586208) internal successors, (56), 35 states have internal predecessors, (56), 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) [2021-10-07 15:30:45,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2021-10-07 15:30:45,100 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 1 [2021-10-07 15:30:45,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:30:45,100 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2021-10-07 15:30:45,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2021-10-07 15:30:45,101 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2021-10-07 15:30:45,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:30:45,101 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:45,102 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:30:45,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:45,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:30:45,317 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-07 15:30:45,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:45,318 INFO L82 PathProgramCache]: Analyzing trace with hash 658067, now seen corresponding path program 1 times [2021-10-07 15:30:45,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:45,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633707493] [2021-10-07 15:30:45,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:45,319 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:45,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:45,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:30:45,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-07 15:30:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:30:45,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:30:45,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:30:45,584 INFO L354 Elim1Store]: treesize reduction 76, result has 30.3 percent of original size [2021-10-07 15:30:45,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 38 [2021-10-07 15:30:45,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:45,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:30:45,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:45,723 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:30:45,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633707493] [2021-10-07 15:30:45,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1633707493] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:30:45,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:30:45,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:30:45,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217459415] [2021-10-07 15:30:45,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:30:45,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:30:45,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:30:45,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:30:45,728 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-07 15:30:45,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:30:45,757 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2021-10-07 15:30:45,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:30:45,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 3 [2021-10-07 15:30:45,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:30:45,759 INFO L225 Difference]: With dead ends: 32 [2021-10-07 15:30:45,759 INFO L226 Difference]: Without dead ends: 32 [2021-10-07 15:30:45,760 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:30:45,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-07 15:30:45,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-07 15:30:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 31 states have internal predecessors, (50), 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) [2021-10-07 15:30:45,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 50 transitions. [2021-10-07 15:30:45,766 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 50 transitions. Word has length 3 [2021-10-07 15:30:45,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:30:45,767 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 50 transitions. [2021-10-07 15:30:45,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-07 15:30:45,767 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2021-10-07 15:30:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:30:45,768 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:45,768 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:30:45,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:45,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:30:45,977 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-07 15:30:45,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:45,978 INFO L82 PathProgramCache]: Analyzing trace with hash 658068, now seen corresponding path program 1 times [2021-10-07 15:30:45,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:45,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017660051] [2021-10-07 15:30:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:45,981 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:45,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:45,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:30:46,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-07 15:30:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:30:46,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:30:46,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:30:46,070 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-07 15:30:46,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-10-07 15:30:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:46,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:30:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:46,119 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:30:46,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017660051] [2021-10-07 15:30:46,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017660051] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:30:46,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:30:46,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:30:46,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296644697] [2021-10-07 15:30:46,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:30:46,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:30:46,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:30:46,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:30:46,129 INFO L87 Difference]: Start difference. First operand 32 states and 50 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-10-07 15:30:46,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:30:46,151 INFO L93 Difference]: Finished difference Result 28 states and 44 transitions. [2021-10-07 15:30:46,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:30:46,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2021-10-07 15:30:46,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:30:46,154 INFO L225 Difference]: With dead ends: 28 [2021-10-07 15:30:46,154 INFO L226 Difference]: Without dead ends: 28 [2021-10-07 15:30:46,155 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:30:46,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-07 15:30:46,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-07 15:30:46,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.76) internal successors, (44), 27 states have internal predecessors, (44), 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) [2021-10-07 15:30:46,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 44 transitions. [2021-10-07 15:30:46,170 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 44 transitions. Word has length 3 [2021-10-07 15:30:46,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:30:46,171 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 44 transitions. [2021-10-07 15:30:46,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-10-07 15:30:46,171 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2021-10-07 15:30:46,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:30:46,172 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:46,172 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:30:46,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:46,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:30:46,385 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-07 15:30:46,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:46,386 INFO L82 PathProgramCache]: Analyzing trace with hash 632415518, now seen corresponding path program 1 times [2021-10-07 15:30:46,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:46,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385034450] [2021-10-07 15:30:46,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:46,388 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:46,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:46,391 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:30:46,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-07 15:30:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:30:46,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:30:46,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:30:46,470 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-07 15:30:46,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-10-07 15:30:46,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:46,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:30:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:46,525 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:30:46,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385034450] [2021-10-07 15:30:46,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385034450] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:30:46,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:30:46,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:30:46,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191547200] [2021-10-07 15:30:46,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:30:46,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:30:46,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:30:46,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:30:46,528 INFO L87 Difference]: Start difference. First operand 28 states and 44 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-07 15:30:46,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:30:46,547 INFO L93 Difference]: Finished difference Result 24 states and 36 transitions. [2021-10-07 15:30:46,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:30:46,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2021-10-07 15:30:46,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:30:46,550 INFO L225 Difference]: With dead ends: 24 [2021-10-07 15:30:46,550 INFO L226 Difference]: Without dead ends: 24 [2021-10-07 15:30:46,550 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:30:46,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-07 15:30:46,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-07 15:30:46,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 23 states have internal predecessors, (36), 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) [2021-10-07 15:30:46,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 36 transitions. [2021-10-07 15:30:46,554 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 36 transitions. Word has length 5 [2021-10-07 15:30:46,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:30:46,555 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 36 transitions. [2021-10-07 15:30:46,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-07 15:30:46,556 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2021-10-07 15:30:46,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:30:46,557 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:46,557 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:30:46,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:46,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:30:46,776 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-07 15:30:46,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:46,777 INFO L82 PathProgramCache]: Analyzing trace with hash 632415516, now seen corresponding path program 1 times [2021-10-07 15:30:46,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:46,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653506385] [2021-10-07 15:30:46,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:46,778 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:46,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:46,779 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:30:46,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-07 15:30:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:30:46,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:30:46,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:30:46,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:46,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:30:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:46,988 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:30:46,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653506385] [2021-10-07 15:30:46,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653506385] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:30:46,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:30:46,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:30:46,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478037226] [2021-10-07 15:30:46,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:30:46,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:30:46,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:30:46,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:30:46,991 INFO L87 Difference]: Start difference. First operand 24 states and 36 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-07 15:30:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:30:47,006 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2021-10-07 15:30:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:30:47,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2021-10-07 15:30:47,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:30:47,008 INFO L225 Difference]: With dead ends: 20 [2021-10-07 15:30:47,008 INFO L226 Difference]: Without dead ends: 20 [2021-10-07 15:30:47,009 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:30:47,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-07 15:30:47,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-07 15:30:47,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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) [2021-10-07 15:30:47,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2021-10-07 15:30:47,012 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 28 transitions. Word has length 5 [2021-10-07 15:30:47,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:30:47,012 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-10-07 15:30:47,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-07 15:30:47,013 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-10-07 15:30:47,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-07 15:30:47,013 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:47,014 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:30:47,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:47,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:30:47,215 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-07 15:30:47,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:47,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1361802705, now seen corresponding path program 1 times [2021-10-07 15:30:47,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:47,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301299736] [2021-10-07 15:30:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:47,218 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:47,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:47,219 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:30:47,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-07 15:30:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:30:47,378 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-07 15:30:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:30:47,532 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-07 15:30:47,533 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-07 15:30:47,534 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:30:47,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-07 15:30:47,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-07 15:30:47,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-07 15:30:47,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-07 15:30:47,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-07 15:30:47,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-07 15:30:47,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-07 15:30:47,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-07 15:30:47,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:30:47,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:30:47,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:30:47,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:47,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:30:47,756 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:30:47,756 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:30:47,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:30:47 BasicIcfg [2021-10-07 15:30:47,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 15:30:47,796 INFO L168 Benchmark]: Toolchain (without parser) took 16112.39 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 112.9 MB in the beginning and 112.1 MB in the end (delta: 756.7 kB). Peak memory consumption was 33.8 MB. Max. memory is 8.0 GB. [2021-10-07 15:30:47,796 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 158.3 MB. Free memory is still 129.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:30:47,797 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.99 ms. Allocated memory is still 158.3 MB. Free memory was 112.5 MB in the beginning and 101.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-07 15:30:47,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.27 ms. Allocated memory is still 158.3 MB. Free memory was 101.4 MB in the beginning and 99.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:30:47,798 INFO L168 Benchmark]: Boogie Preprocessor took 104.32 ms. Allocated memory is still 158.3 MB. Free memory was 99.9 MB in the beginning and 141.3 MB in the end (delta: -41.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2021-10-07 15:30:47,799 INFO L168 Benchmark]: RCFGBuilder took 668.42 ms. Allocated memory is still 158.3 MB. Free memory was 141.3 MB in the beginning and 127.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-07 15:30:47,800 INFO L168 Benchmark]: TraceAbstraction took 14888.67 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 126.6 MB in the beginning and 112.1 MB in the end (delta: 14.5 MB). Peak memory consumption was 47.3 MB. Max. memory is 8.0 GB. [2021-10-07 15:30:47,804 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 158.3 MB. Free memory is still 129.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 362.99 ms. Allocated memory is still 158.3 MB. Free memory was 112.5 MB in the beginning and 101.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 73.27 ms. Allocated memory is still 158.3 MB. Free memory was 101.4 MB in the beginning and 99.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 104.32 ms. Allocated memory is still 158.3 MB. Free memory was 99.9 MB in the beginning and 141.3 MB in the end (delta: -41.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 668.42 ms. Allocated memory is still 158.3 MB. Free memory was 141.3 MB in the beginning and 127.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14888.67 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 126.6 MB in the beginning and 112.1 MB in the end (delta: 14.5 MB). Peak memory consumption was 47.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11736.7ms, 148 PlacesBefore, 30 PlacesAfterwards, 156 TransitionsBefore, 23 TransitionsAfterwards, 3696 CoEnabledTransitionPairs, 7 FixpointIterations, 75 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 31 ConcurrentYvCompositions, 15 ChoiceCompositions, 201 TotalNumberOfCompositions, 3755 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3755, positive: 3755, positive conditional: 0, positive unconditional: 3755, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2757, positive: 2757, positive conditional: 0, positive unconditional: 2757, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2757, positive: 2757, positive conditional: 0, positive unconditional: 2757, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3755, positive: 998, positive conditional: 0, positive unconditional: 998, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2757, unknown conditional: 0, unknown unconditional: 2757] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 72]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 72. Possible FailurePath: [L38] 0 int filename_1, filename_4, result_6, result_7; [L39] 0 _Bool isNull_0, isNull_3, filename_2, filename_5; [L54] 0 pthread_t t1, t2; [L56] 0 filename_1 = __VERIFIER_nondet_int() [L57] 0 filename_4 = __VERIFIER_nondet_int() [L58] 0 isNull_0 = __VERIFIER_nondet_bool() [L59] 0 isNull_3 = __VERIFIER_nondet_bool() [L60] 0 filename_2 = __VERIFIER_nondet_bool() [L61] 0 filename_5 = __VERIFIER_nondet_bool() [L64] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [result_6=0, result_7=0] [L42] EXPR 1 isNull_0 ? (isNull_3 ? 0 : 1) : (isNull_3 ? -1 : (filename_2 ? (filename_5 ? 0 : 1) : (filename_5 ? -1 : filename_1 - filename_4))) [L42] EXPR 1 isNull_3 ? -1 : (filename_2 ? (filename_5 ? 0 : 1) : (filename_5 ? -1 : filename_1 - filename_4)) [L42] EXPR 1 filename_2 ? (filename_5 ? 0 : 1) : (filename_5 ? -1 : filename_1 - filename_4) [L42] EXPR 1 filename_5 ? -1 : filename_1 - filename_4 [L42] EXPR 1 filename_2 ? (filename_5 ? 0 : 1) : (filename_5 ? -1 : filename_1 - filename_4) [L42] EXPR 1 isNull_3 ? -1 : (filename_2 ? (filename_5 ? 0 : 1) : (filename_5 ? -1 : filename_1 - filename_4)) [L42] EXPR 1 isNull_0 ? (isNull_3 ? 0 : 1) : (isNull_3 ? -1 : (filename_2 ? (filename_5 ? 0 : 1) : (filename_5 ? -1 : filename_1 - filename_4))) [L42] 1 result_6 = isNull_0 ? (isNull_3 ? 0 : 1) : (isNull_3 ? -1 : (filename_2 ? (filename_5 ? 0 : 1) : (filename_5 ? -1 : filename_1 - filename_4))) [L44] 1 return 0; [L65] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, filename_1=192675846, filename_2=0, filename_4=-1954807802, filename_5=0, isNull_0=0, isNull_3=0, result_6=-2147483648, result_7=0] [L66] 0 \read(t1) VAL [\result={0:0}, filename_1=192675846, filename_2=0, filename_4=-1954807802, filename_5=0, isNull_0=0, isNull_3=0, result_6=-2147483648, result_7=0] [L48] EXPR 2 isNull_3 ? (isNull_0 ? 0 : 1) : (isNull_0 ? -1 : (filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1))) [L48] EXPR 2 isNull_0 ? -1 : (filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1)) [L48] EXPR 2 filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1) [L48] EXPR 2 filename_2 ? -1 : filename_4 - filename_1 [L48] EXPR 2 filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1) [L48] EXPR 2 isNull_0 ? -1 : (filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1)) [L48] EXPR 2 isNull_3 ? (isNull_0 ? 0 : 1) : (isNull_0 ? -1 : (filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1))) [L48] 2 result_7 = isNull_3 ? (isNull_0 ? 0 : 1) : (isNull_0 ? -1 : (filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1))) [L50] 2 return 0; [L66] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, \result={0:0}, filename_1=192675846, filename_2=0, filename_4=-1954807802, filename_5=0, isNull_0=0, isNull_3=0, result_6=-2147483648, result_7=-2147483648] [L67] 0 \read(t2) VAL [\result={0:0}, \result={0:0}, filename_1=192675846, filename_2=0, filename_4=-1954807802, filename_5=0, isNull_0=0, isNull_3=0, result_6=-2147483648, result_7=-2147483648] [L67] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, filename_1=192675846, filename_2=0, filename_4=-1954807802, filename_5=0, isNull_0=0, isNull_3=0, result_6=-2147483648, result_7=-2147483648] [L35] COND FALSE 0 !(!cond) [L35] COND FALSE 0 !(!cond) [L35] COND FALSE 0 !(!cond) [L72] 0 reach_error() VAL [\result={0:0}, \result={0:0}, filename_1=192675846, filename_2=0, filename_4=-1954807802, filename_5=0, isNull_0=0, isNull_3=0, result_6=-2147483648, result_7=-2147483648] - UnprovableResult [Line: 64]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 200 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 14688.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 15.9ms, AutomataDifference: 152.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11804.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 51 SDtfs, 52 SDslu, 0 SDs, 0 SdLazy, 17 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 55.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 79.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 54.1ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 73.6ms SsaConstructionTime, 199.1ms SatisfiabilityAnalysisTime, 660.4ms InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 244 SizeOfPredicates, 7 NumberOfNonLiveVariables, 149 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 could not prove your program: unable to determine feasibility of some traces [2021-10-07 15:30:47,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...