/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 [2021-10-06 21:00:10,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 21:00:10,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 21:00:10,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-06 21:00:10,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-06 21:00:10,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-06 21:00:10,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-06 21:00:10,702 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-06 21:00:10,759 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 21:00:10,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 21:00:10,760 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 21:00:10,760 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 21:00:10,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 21:00:10,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 21:00:10,763 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 21:00:10,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 21:00:10,763 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 21:00:10,763 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-06 21:00:10,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 21:00:10,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 21:00:10,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 21:00:10,766 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-06 21:00:10,766 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-06 21:00:10,766 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-06 21:00:10,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 21:00:10,766 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-06 21:00:10,766 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-06 21:00:10,767 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-06 21:00:10,767 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 21:00:10,767 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 21:00:10,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 21:00:10,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 21:00:10,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 21:00:10,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 21:00:10,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 21:00:10,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 21:00:10,769 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-06 21:00:10,769 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-06 21:00:10,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-06 21:00:10,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-06 21:00:10,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 21:00:11,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 21:00:11,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 21:00:11,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 21:00:11,195 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 21:00:11,197 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 21:00:11,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/file-item-symm.wvr.c [2021-10-06 21:00:11,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/396ba83f9/7dbcecb9d0cf430c88d55e9e3c868338/FLAG790f26932 [2021-10-06 21:00:11,817 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 21:00:11,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/file-item-symm.wvr.c [2021-10-06 21:00:11,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/396ba83f9/7dbcecb9d0cf430c88d55e9e3c868338/FLAG790f26932 [2021-10-06 21:00:12,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/396ba83f9/7dbcecb9d0cf430c88d55e9e3c868338 [2021-10-06 21:00:12,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 21:00:12,194 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-06 21:00:12,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 21:00:12,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 21:00:12,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 21:00:12,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 09:00:12" (1/1) ... [2021-10-06 21:00:12,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d95edbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12, skipping insertion in model container [2021-10-06 21:00:12,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 09:00:12" (1/1) ... [2021-10-06 21:00:12,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 21:00:12,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 21:00:12,450 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[2408,2421] [2021-10-06 21:00:12,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 21:00:12,468 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 21:00:12,493 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[2408,2421] [2021-10-06 21:00:12,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 21:00:12,513 INFO L208 MainTranslator]: Completed translation [2021-10-06 21:00:12,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12 WrapperNode [2021-10-06 21:00:12,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 21:00:12,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 21:00:12,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 21:00:12,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 21:00:12,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12" (1/1) ... [2021-10-06 21:00:12,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12" (1/1) ... [2021-10-06 21:00:12,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 21:00:12,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 21:00:12,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 21:00:12,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 21:00:12,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12" (1/1) ... [2021-10-06 21:00:12,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12" (1/1) ... [2021-10-06 21:00:12,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12" (1/1) ... [2021-10-06 21:00:12,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12" (1/1) ... [2021-10-06 21:00:12,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12" (1/1) ... [2021-10-06 21:00:12,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12" (1/1) ... [2021-10-06 21:00:12,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12" (1/1) ... [2021-10-06 21:00:12,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 21:00:12,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 21:00:12,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 21:00:12,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 21:00:12,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12" (1/1) ... [2021-10-06 21:00:12,601 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 21:00:12,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 21:00:12,630 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) [2021-10-06 21:00:12,647 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 [2021-10-06 21:00:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 21:00:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 21:00:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 21:00:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 21:00:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-06 21:00:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 21:00:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-06 21:00:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 21:00:12,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 21:00:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 21:00:12,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-06 21:00:12,699 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-06 21:00:13,089 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 21:00:13,089 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-06 21:00:13,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 09:00:13 BoogieIcfgContainer [2021-10-06 21:00:13,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 21:00:13,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 21:00:13,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 21:00:13,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 21:00:13,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 09:00:12" (1/3) ... [2021-10-06 21:00:13,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768fc01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 09:00:13, skipping insertion in model container [2021-10-06 21:00:13,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:00:12" (2/3) ... [2021-10-06 21:00:13,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768fc01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 09:00:13, skipping insertion in model container [2021-10-06 21:00:13,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 09:00:13" (3/3) ... [2021-10-06 21:00:13,127 INFO L111 eAbstractionObserver]: Analyzing ICFG file-item-symm.wvr.c [2021-10-06 21:00:13,139 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 21:00:13,139 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-10-06 21:00:13,140 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 21:00:13,176 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,176 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,176 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,177 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,177 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,177 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,177 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,178 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,178 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,178 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,178 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,178 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,179 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,179 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,179 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,180 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,180 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,180 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,180 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,180 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,181 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,181 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,181 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,181 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,184 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,185 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,185 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,185 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,185 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,187 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,187 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,187 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,187 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,190 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,191 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,191 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,191 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,191 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,191 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,192 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,192 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,192 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,192 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,193 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,193 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,193 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,193 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,194 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,194 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,194 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,194 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,195 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,195 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,195 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,195 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,197 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,197 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,197 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,197 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,197 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,198 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,198 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,198 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,198 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,199 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,199 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,199 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,199 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,199 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,200 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,200 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,200 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,200 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,201 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,201 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,201 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,201 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,201 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,205 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,205 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,206 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,206 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,206 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,206 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,207 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,207 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,212 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,212 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,212 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,213 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,213 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,213 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:00:13,220 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-06 21:00:13,290 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-06 21:00:13,302 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 [2021-10-06 21:00:13,303 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-10-06 21:00:13,336 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-06 21:00:13,357 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 151 transitions, 318 flow [2021-10-06 21:00:13,361 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 151 transitions, 318 flow [2021-10-06 21:00:13,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 143 places, 151 transitions, 318 flow [2021-10-06 21:00:13,487 INFO L129 PetriNetUnfolder]: 15/149 cut-off events. [2021-10-06 21:00:13,487 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-06 21:00:13,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 149 events. 15/149 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 252 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2021-10-06 21:00:13,498 INFO L116 LiptonReduction]: Number of co-enabled transitions 3520 [2021-10-06 21:00:24,065 INFO L131 LiptonReduction]: Checked pairs total: 3795 [2021-10-06 21:00:24,065 INFO L133 LiptonReduction]: Total number of compositions: 197 [2021-10-06 21:00:24,079 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 23 transitions, 62 flow [2021-10-06 21:00:24,091 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) [2021-10-06 21:00:24,093 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) [2021-10-06 21:00:24,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-06 21:00:24,103 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:24,104 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-06 21:00:24,104 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:00:24,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:24,111 INFO L82 PathProgramCache]: Analyzing trace with hash 651, now seen corresponding path program 1 times [2021-10-06 21:00:24,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:24,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713418758] [2021-10-06 21:00:24,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:24,125 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:24,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:24,129 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) [2021-10-06 21:00:24,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-06 21:00:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:24,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-06 21:00:24,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:24,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:24,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:24,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:24,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713418758] [2021-10-06 21:00:24,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713418758] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:24,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:24,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-06 21:00:24,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302448958] [2021-10-06 21:00:24,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-06 21:00:24,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:24,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-06 21:00:24,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-06 21:00:24,231 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) [2021-10-06 21:00:24,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:24,244 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2021-10-06 21:00:24,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-06 21:00:24,245 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 [2021-10-06 21:00:24,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:24,253 INFO L225 Difference]: With dead ends: 36 [2021-10-06 21:00:24,253 INFO L226 Difference]: Without dead ends: 36 [2021-10-06 21:00:24,254 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 [2021-10-06 21:00:24,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-06 21:00:24,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-06 21:00:24,283 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) [2021-10-06 21:00:24,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2021-10-06 21:00:24,285 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 1 [2021-10-06 21:00:24,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:24,286 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2021-10-06 21:00:24,286 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) [2021-10-06 21:00:24,286 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2021-10-06 21:00:24,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 21:00:24,287 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:24,287 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 21:00:24,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-06 21:00:24,496 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 [2021-10-06 21:00:24,497 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:00:24,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:24,499 INFO L82 PathProgramCache]: Analyzing trace with hash 638379, now seen corresponding path program 1 times [2021-10-06 21:00:24,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:24,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146058298] [2021-10-06 21:00:24,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:24,501 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:24,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:24,502 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) [2021-10-06 21:00:24,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-06 21:00:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:24,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-06 21:00:24,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:24,745 INFO L354 Elim1Store]: treesize reduction 76, result has 30.3 percent of original size [2021-10-06 21:00:24,747 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 [2021-10-06 21:00:24,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:24,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:24,951 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:24,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146058298] [2021-10-06 21:00:24,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146058298] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:24,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:24,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 21:00:24,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744503369] [2021-10-06 21:00:24,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 21:00:24,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:24,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 21:00:24,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:00:24,955 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) [2021-10-06 21:00:24,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:24,990 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2021-10-06 21:00:24,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:00:24,991 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 [2021-10-06 21:00:24,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:24,992 INFO L225 Difference]: With dead ends: 32 [2021-10-06 21:00:24,992 INFO L226 Difference]: Without dead ends: 32 [2021-10-06 21:00:24,993 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:00:24,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-06 21:00:24,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-06 21:00:24,997 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) [2021-10-06 21:00:24,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 50 transitions. [2021-10-06 21:00:24,999 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 50 transitions. Word has length 3 [2021-10-06 21:00:24,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:24,999 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 50 transitions. [2021-10-06 21:00:24,999 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) [2021-10-06 21:00:25,000 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2021-10-06 21:00:25,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 21:00:25,000 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:25,000 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 21:00:25,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:25,213 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 [2021-10-06 21:00:25,215 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:00:25,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:25,216 INFO L82 PathProgramCache]: Analyzing trace with hash 638380, now seen corresponding path program 1 times [2021-10-06 21:00:25,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:25,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056097843] [2021-10-06 21:00:25,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:25,218 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:25,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:25,219 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) [2021-10-06 21:00:25,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-06 21:00:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:25,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-06 21:00:25,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:25,282 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-06 21:00:25,283 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 [2021-10-06 21:00:25,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:25,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:25,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:25,319 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:25,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056097843] [2021-10-06 21:00:25,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056097843] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:25,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:25,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-06 21:00:25,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817048422] [2021-10-06 21:00:25,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 21:00:25,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:25,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 21:00:25,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:00:25,322 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) [2021-10-06 21:00:25,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:25,337 INFO L93 Difference]: Finished difference Result 28 states and 44 transitions. [2021-10-06 21:00:25,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:00:25,338 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 [2021-10-06 21:00:25,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:25,339 INFO L225 Difference]: With dead ends: 28 [2021-10-06 21:00:25,339 INFO L226 Difference]: Without dead ends: 28 [2021-10-06 21:00:25,339 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:00:25,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-06 21:00:25,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-06 21:00:25,343 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) [2021-10-06 21:00:25,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 44 transitions. [2021-10-06 21:00:25,344 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 44 transitions. Word has length 3 [2021-10-06 21:00:25,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:25,344 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 44 transitions. [2021-10-06 21:00:25,345 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) [2021-10-06 21:00:25,345 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2021-10-06 21:00:25,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-06 21:00:25,345 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:25,345 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-06 21:00:25,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:25,556 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 [2021-10-06 21:00:25,557 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:00:25,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:25,559 INFO L82 PathProgramCache]: Analyzing trace with hash 613497882, now seen corresponding path program 1 times [2021-10-06 21:00:25,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:25,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432598577] [2021-10-06 21:00:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:25,561 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:25,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:25,562 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) [2021-10-06 21:00:25,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-06 21:00:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:25,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-06 21:00:25,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:25,649 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-06 21:00:25,650 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 [2021-10-06 21:00:25,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:25,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:25,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:25,711 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:25,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432598577] [2021-10-06 21:00:25,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432598577] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:25,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:25,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-06 21:00:25,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695894315] [2021-10-06 21:00:25,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 21:00:25,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:25,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 21:00:25,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:00:25,714 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) [2021-10-06 21:00:25,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:25,730 INFO L93 Difference]: Finished difference Result 24 states and 36 transitions. [2021-10-06 21:00:25,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:00:25,731 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 [2021-10-06 21:00:25,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:25,732 INFO L225 Difference]: With dead ends: 24 [2021-10-06 21:00:25,732 INFO L226 Difference]: Without dead ends: 24 [2021-10-06 21:00:25,732 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:00:25,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-06 21:00:25,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-06 21:00:25,735 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) [2021-10-06 21:00:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 36 transitions. [2021-10-06 21:00:25,736 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 36 transitions. Word has length 5 [2021-10-06 21:00:25,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:25,737 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 36 transitions. [2021-10-06 21:00:25,737 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) [2021-10-06 21:00:25,737 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2021-10-06 21:00:25,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-06 21:00:25,738 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:25,738 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-06 21:00:25,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:25,949 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 [2021-10-06 21:00:25,949 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:00:25,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:25,951 INFO L82 PathProgramCache]: Analyzing trace with hash 613497883, now seen corresponding path program 1 times [2021-10-06 21:00:25,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:25,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48992936] [2021-10-06 21:00:25,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:25,952 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:25,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:25,953 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) [2021-10-06 21:00:25,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-06 21:00:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:26,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-06 21:00:26,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:26,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:26,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:26,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:26,147 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:26,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48992936] [2021-10-06 21:00:26,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48992936] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:26,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:26,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-06 21:00:26,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916641433] [2021-10-06 21:00:26,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 21:00:26,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:26,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 21:00:26,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:00:26,149 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) [2021-10-06 21:00:26,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:26,165 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2021-10-06 21:00:26,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:00:26,166 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 [2021-10-06 21:00:26,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:26,167 INFO L225 Difference]: With dead ends: 20 [2021-10-06 21:00:26,167 INFO L226 Difference]: Without dead ends: 20 [2021-10-06 21:00:26,168 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:00:26,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-06 21:00:26,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-06 21:00:26,170 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) [2021-10-06 21:00:26,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2021-10-06 21:00:26,171 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 28 transitions. Word has length 5 [2021-10-06 21:00:26,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:26,171 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-10-06 21:00:26,171 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) [2021-10-06 21:00:26,172 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-10-06 21:00:26,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-06 21:00:26,172 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:26,172 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:26,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:26,381 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 [2021-10-06 21:00:26,381 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)] === [2021-10-06 21:00:26,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:26,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1214388466, now seen corresponding path program 1 times [2021-10-06 21:00:26,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:26,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586415957] [2021-10-06 21:00:26,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:26,384 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:26,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:26,386 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) [2021-10-06 21:00:26,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-06 21:00:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 21:00:26,523 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-06 21:00:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 21:00:26,672 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-06 21:00:26,672 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-06 21:00:26,673 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 21:00:26,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-06 21:00:26,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-06 21:00:26,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-06 21:00:26,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-06 21:00:26,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-06 21:00:26,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-06 21:00:26,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-06 21:00:26,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-06 21:00:26,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 21:00:26,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 21:00:26,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 21:00:26,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:26,887 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 [2021-10-06 21:00:26,894 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 21:00:26,894 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 21:00:26,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 09:00:26 BasicIcfg [2021-10-06 21:00:26,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 21:00:26,927 INFO L168 Benchmark]: Toolchain (without parser) took 14738.09 ms. Allocated memory was 152.0 MB in the beginning and 195.0 MB in the end (delta: 43.0 MB). Free memory was 125.5 MB in the beginning and 79.0 MB in the end (delta: 46.5 MB). Peak memory consumption was 90.5 MB. Max. memory is 8.0 GB. [2021-10-06 21:00:26,928 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 21:00:26,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.52 ms. Allocated memory is still 152.0 MB. Free memory was 125.2 MB in the beginning and 114.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-06 21:00:26,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.81 ms. Allocated memory is still 152.0 MB. Free memory was 114.5 MB in the beginning and 112.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 21:00:26,930 INFO L168 Benchmark]: Boogie Preprocessor took 31.04 ms. Allocated memory is still 152.0 MB. Free memory was 112.9 MB in the beginning and 111.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 21:00:26,931 INFO L168 Benchmark]: RCFGBuilder took 500.45 ms. Allocated memory is still 152.0 MB. Free memory was 111.5 MB in the beginning and 97.4 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-10-06 21:00:26,932 INFO L168 Benchmark]: TraceAbstraction took 13832.55 ms. Allocated memory was 152.0 MB in the beginning and 195.0 MB in the end (delta: 43.0 MB). Free memory was 96.9 MB in the beginning and 79.0 MB in the end (delta: 17.9 MB). Peak memory consumption was 62.2 MB. Max. memory is 8.0 GB. [2021-10-06 21:00:26,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 315.52 ms. Allocated memory is still 152.0 MB. Free memory was 125.2 MB in the beginning and 114.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.81 ms. Allocated memory is still 152.0 MB. Free memory was 114.5 MB in the beginning and 112.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.04 ms. Allocated memory is still 152.0 MB. Free memory was 112.9 MB in the beginning and 111.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 500.45 ms. Allocated memory is still 152.0 MB. Free memory was 111.5 MB in the beginning and 97.4 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13832.55 ms. Allocated memory was 152.0 MB in the beginning and 195.0 MB in the end (delta: 43.0 MB). Free memory was 96.9 MB in the beginning and 79.0 MB in the end (delta: 17.9 MB). Peak memory consumption was 62.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10704.0ms, 143 PlacesBefore, 30 PlacesAfterwards, 151 TransitionsBefore, 23 TransitionsAfterwards, 3520 CoEnabledTransitionPairs, 6 FixpointIterations, 74 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 34 ConcurrentYvCompositions, 15 ChoiceCompositions, 197 TotalNumberOfCompositions, 3795 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3795, positive: 3795, positive conditional: 0, positive unconditional: 3795, 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: 2825, positive: 2825, positive conditional: 0, positive unconditional: 2825, 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: 2825, positive: 2825, positive conditional: 0, positive unconditional: 2825, 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: 3795, positive: 970, positive conditional: 0, positive unconditional: 970, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2825, unknown conditional: 0, unknown unconditional: 2825] , 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: 68]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 68. Possible FailurePath: [L38] 0 int filename_1, filename_4, result_6, result_7; [L39] 0 _Bool isNull_0, isNull_3, filename_2, filename_5; [L50] 0 pthread_t t1, t2; [L52] 0 filename_1 = __VERIFIER_nondet_int() [L53] 0 filename_4 = __VERIFIER_nondet_int() [L54] 0 isNull_0 = __VERIFIER_nondet_bool() [L55] 0 isNull_3 = __VERIFIER_nondet_bool() [L56] 0 filename_2 = __VERIFIER_nondet_bool() [L57] 0 filename_5 = __VERIFIER_nondet_bool() [L60] FCALL, FORK 0 pthread_create(&t1, NULL, thread1, NULL) 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 ? 0 : 1 [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))) [L61] FCALL, FORK 0 pthread_create(&t2, NULL, thread2, NULL) VAL [filename_1=-476053504, filename_2=0, filename_4=1671430144, filename_5=0, isNull_0=0, isNull_3=0, result_6=-2147483648, result_7=0] [L46] EXPR 2 isNull_3 ? (isNull_0 ? 0 : 1) : (isNull_0 ? -1 : (filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1))) [L46] EXPR 2 isNull_0 ? -1 : (filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1)) [L46] EXPR 2 filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1) [L46] EXPR 2 filename_2 ? -1 : filename_4 - filename_1 [L46] EXPR 2 filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1) [L46] EXPR 2 isNull_0 ? -1 : (filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1)) [L46] EXPR 2 isNull_3 ? (isNull_0 ? 0 : 1) : (isNull_0 ? -1 : (filename_5 ? (filename_2 ? 0 : 1) : (filename_2 ? -1 : filename_4 - filename_1))) [L46] 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))) [L62] 0 \read(t1) VAL [filename_1=-476053504, filename_2=0, filename_4=1671430144, filename_5=0, isNull_0=0, isNull_3=0, result_6=-2147483648, result_7=-2147483648] [L62] FCALL, JOIN 1 pthread_join(t1, 0) VAL [filename_1=-476053504, filename_2=0, filename_4=1671430144, filename_5=0, isNull_0=0, isNull_3=0, result_6=-2147483648, result_7=-2147483648] [L63] 0 \read(t2) VAL [filename_1=-476053504, filename_2=0, filename_4=1671430144, filename_5=0, isNull_0=0, isNull_3=0, result_6=-2147483648, result_7=-2147483648] [L63] FCALL, JOIN 2 pthread_join(t2, 0) VAL [filename_1=-476053504, filename_2=0, filename_4=1671430144, 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) [L68] 0 reach_error() VAL [filename_1=-476053504, filename_2=0, filename_4=1671430144, filename_5=0, isNull_0=0, isNull_3=0, result_6=-2147483648, result_7=-2147483648] - UnprovableResult [Line: 60]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 60]: 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: 61]: 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, 193 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 13606.3ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 14.0ms, AutomataDifference: 135.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10788.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 51 SDtfs, 52 SDslu, 0 SDs, 0 SdLazy, 17 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 53.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 82.5ms 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: 34.3ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 53.6ms SsaConstructionTime, 172.4ms SatisfiabilityAnalysisTime, 695.9ms 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 [2021-10-06 21:00:26,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...