/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-06 16:17:13,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 16:17:13,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 16:17:13,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-06 16:17:13,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-06 16:17:13,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-06 16:17:13,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-06 16:17:13,477 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-06 16:17:13,532 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 16:17:13,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 16:17:13,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 16:17:13,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 16:17:13,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 16:17:13,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 16:17:13,539 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 16:17:13,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 16:17:13,539 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 16:17:13,540 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-06 16:17:13,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 16:17:13,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 16:17:13,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 16:17:13,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-06 16:17:13,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 16:17:13,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-06 16:17:13,542 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-06 16:17:13,542 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 16:17:13,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-06 16:17:13,543 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 16:17:13,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-06 16:17:13,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 16:17:13,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 16:17:13,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 16:17:13,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:17:13,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 16:17:13,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 16:17:13,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-06 16:17:13,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-06 16:17:13,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-06 16:17:13,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-06 16:17:13,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-06 16:17:13,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 16:17:13,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 16:17:13,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 16:17:13,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 16:17:13,985 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 16:17:13,985 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 16:17:13,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c [2021-10-06 16:17:14,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8322cd67/8429c666458a4a62816499dba1da8a02/FLAGa9ce236ec [2021-10-06 16:17:14,813 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 16:17:14,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c [2021-10-06 16:17:14,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8322cd67/8429c666458a4a62816499dba1da8a02/FLAGa9ce236ec [2021-10-06 16:17:15,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8322cd67/8429c666458a4a62816499dba1da8a02 [2021-10-06 16:17:15,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 16:17:15,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-06 16:17:15,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 16:17:15,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 16:17:15,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 16:17:15,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:17:15" (1/1) ... [2021-10-06 16:17:15,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d78d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15, skipping insertion in model container [2021-10-06 16:17:15,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:17:15" (1/1) ... [2021-10-06 16:17:15,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 16:17:15,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 16:17:15,392 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/exp-term-symm.wvr.c[2541,2554] [2021-10-06 16:17:15,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:17:15,403 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 16:17:15,426 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/exp-term-symm.wvr.c[2541,2554] [2021-10-06 16:17:15,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:17:15,441 INFO L208 MainTranslator]: Completed translation [2021-10-06 16:17:15,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15 WrapperNode [2021-10-06 16:17:15,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 16:17:15,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 16:17:15,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 16:17:15,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 16:17:15,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15" (1/1) ... [2021-10-06 16:17:15,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15" (1/1) ... [2021-10-06 16:17:15,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 16:17:15,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 16:17:15,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 16:17:15,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 16:17:15,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15" (1/1) ... [2021-10-06 16:17:15,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15" (1/1) ... [2021-10-06 16:17:15,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15" (1/1) ... [2021-10-06 16:17:15,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15" (1/1) ... [2021-10-06 16:17:15,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15" (1/1) ... [2021-10-06 16:17:15,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15" (1/1) ... [2021-10-06 16:17:15,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15" (1/1) ... [2021-10-06 16:17:15,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 16:17:15,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 16:17:15,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 16:17:15,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 16:17:15,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15" (1/1) ... [2021-10-06 16:17:15,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:17:15,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 16:17:15,562 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 16:17:15,587 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 16:17:15,631 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 16:17:15,632 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 16:17:15,632 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 16:17:15,632 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 16:17:15,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-06 16:17:15,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 16:17:15,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-06 16:17:15,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 16:17:15,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 16:17:15,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-06 16:17:15,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 16:17:15,635 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 16:17:16,041 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 16:17:16,044 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-06 16:17:16,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:17:16 BoogieIcfgContainer [2021-10-06 16:17:16,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 16:17:16,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 16:17:16,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 16:17:16,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 16:17:16,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 04:17:15" (1/3) ... [2021-10-06 16:17:16,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748cd46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:17:16, skipping insertion in model container [2021-10-06 16:17:16,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:15" (2/3) ... [2021-10-06 16:17:16,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748cd46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:17:16, skipping insertion in model container [2021-10-06 16:17:16,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:17:16" (3/3) ... [2021-10-06 16:17:16,070 INFO L111 eAbstractionObserver]: Analyzing ICFG exp-term-symm.wvr.c [2021-10-06 16:17:16,077 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-06 16:17:16,093 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 16:17:16,094 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-06 16:17:16,094 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 16:17:16,135 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,135 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,136 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,136 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,136 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,137 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,137 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,137 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,138 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,138 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,138 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,138 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,139 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,139 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,139 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,139 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,140 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,140 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,140 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,140 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,141 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,141 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,141 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,141 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,143 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,143 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,143 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,144 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,144 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,144 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,145 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,145 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,145 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,145 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,145 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,146 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,146 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,146 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,147 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,147 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,147 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,147 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,148 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,148 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,148 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,148 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,149 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,149 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,153 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,153 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,154 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,154 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,154 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,160 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,160 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,160 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,161 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,161 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:16,171 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-06 16:17:16,229 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-06 16:17:16,238 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=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 16:17:16,238 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-10-06 16:17:16,257 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-06 16:17:16,271 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 112 transitions, 240 flow [2021-10-06 16:17:16,275 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 112 transitions, 240 flow [2021-10-06 16:17:16,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 112 transitions, 240 flow [2021-10-06 16:17:16,345 INFO L129 PetriNetUnfolder]: 9/110 cut-off events. [2021-10-06 16:17:16,345 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-06 16:17:16,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 110 events. 9/110 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 150 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2021-10-06 16:17:16,362 INFO L116 LiptonReduction]: Number of co-enabled transitions 1512 [2021-10-06 16:17:21,407 INFO L131 LiptonReduction]: Checked pairs total: 1717 [2021-10-06 16:17:21,407 INFO L133 LiptonReduction]: Total number of compositions: 133 [2021-10-06 16:17:21,417 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 17 transitions, 50 flow [2021-10-06 16:17:21,431 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 46 states, 38 states have (on average 2.236842105263158) internal successors, (85), 45 states have internal predecessors, (85), 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 16:17:21,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 38 states have (on average 2.236842105263158) internal successors, (85), 45 states have internal predecessors, (85), 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 16:17:21,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 16:17:21,439 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:17:21,440 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 16:17:21,441 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-06 16:17:21,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:17:21,447 INFO L82 PathProgramCache]: Analyzing trace with hash 457563, now seen corresponding path program 1 times [2021-10-06 16:17:21,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:17:21,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234662857] [2021-10-06 16:17:21,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:17:21,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:17:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 16:17:21,611 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-06 16:17:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 16:17:21,703 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-06 16:17:21,707 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-06 16:17:21,709 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:21,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:21,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:21,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:21,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:21,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 16:17:21,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 16:17:21,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:21,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:21,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:21,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-06 16:17:21,739 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 16:17:21,740 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 16:17:21,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 04:17:21 BasicIcfg [2021-10-06 16:17:21,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 16:17:21,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-06 16:17:21,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-06 16:17:21,768 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-06 16:17:21,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:17:16" (3/4) ... [2021-10-06 16:17:21,771 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-06 16:17:21,826 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/chl/exp-term-symm.wvr.c-witness.graphml [2021-10-06 16:17:21,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-06 16:17:21,830 INFO L168 Benchmark]: Toolchain (without parser) took 6674.44 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 128.1 MB in the beginning and 84.6 MB in the end (delta: 43.6 MB). Peak memory consumption was 74.8 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:21,830 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 152.0 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 16:17:21,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.44 ms. Allocated memory is still 152.0 MB. Free memory was 127.8 MB in the beginning and 117.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:21,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.41 ms. Allocated memory is still 152.0 MB. Free memory was 117.6 MB in the beginning and 116.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:21,832 INFO L168 Benchmark]: Boogie Preprocessor took 28.84 ms. Allocated memory is still 152.0 MB. Free memory was 116.1 MB in the beginning and 114.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:21,833 INFO L168 Benchmark]: RCFGBuilder took 530.10 ms. Allocated memory is still 152.0 MB. Free memory was 114.8 MB in the beginning and 101.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:21,834 INFO L168 Benchmark]: TraceAbstraction took 5715.34 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 101.4 MB in the beginning and 86.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 45.5 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:21,835 INFO L168 Benchmark]: Witness Printer took 58.61 ms. Allocated memory is still 182.5 MB. Free memory was 86.7 MB in the beginning and 84.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:21,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 152.0 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 279.44 ms. Allocated memory is still 152.0 MB. Free memory was 127.8 MB in the beginning and 117.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.41 ms. Allocated memory is still 152.0 MB. Free memory was 117.6 MB in the beginning and 116.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.84 ms. Allocated memory is still 152.0 MB. Free memory was 116.1 MB in the beginning and 114.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 530.10 ms. Allocated memory is still 152.0 MB. Free memory was 114.8 MB in the beginning and 101.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5715.34 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 101.4 MB in the beginning and 86.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 45.5 MB. Max. memory is 8.0 GB. * Witness Printer took 58.61 ms. Allocated memory is still 182.5 MB. Free memory was 86.7 MB in the beginning and 84.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5131.9ms, 110 PlacesBefore, 24 PlacesAfterwards, 112 TransitionsBefore, 17 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 6 FixpointIterations, 46 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 18 ConcurrentYvCompositions, 9 ChoiceCompositions, 133 TotalNumberOfCompositions, 1717 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1717, positive: 1717, positive conditional: 0, positive unconditional: 1717, 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: 1242, positive: 1242, positive conditional: 0, positive unconditional: 1242, 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: 1242, positive: 1242, positive conditional: 0, positive unconditional: 1242, 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: 1717, positive: 475, positive conditional: 0, positive unconditional: 475, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1242, unknown conditional: 0, unknown unconditional: 1242] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, 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 - CounterExampleResult [Line: 42]: integer overflow possible integer overflow possible We found a FailurePath: [L38] 0 int sort_label_0, sort_label_2, result_4, result_5; [L39] 0 _Bool sort_label_is_null_1, sort_label_is_null_3; [L50] 0 pthread_t t1, t2; [L52] 0 sort_label_0 = __VERIFIER_nondet_int() [L53] 0 sort_label_2 = __VERIFIER_nondet_int() [L54] 0 sort_label_is_null_1 = __VERIFIER_nondet_bool() [L55] 0 sort_label_is_null_3 = __VERIFIER_nondet_bool() [L58] FCALL, FORK 0 pthread_create(&t1, NULL, thread1, NULL) VAL [result_4=0, result_5=0, sort_label_0=-2147483648, sort_label_2=1] [L42] 1 !!sort_label_is_null_1 == !!sort_label_is_null_3 && (sort_label_is_null_1 || sort_label_is_null_3 || sort_label_0 == sort_label_2) ? 0 : (sort_label_is_null_1 ? -1 : (sort_label_is_null_3 ? 1 : sort_label_0 - sort_label_2)) [L42] 1 sort_label_is_null_1 ? -1 : (sort_label_is_null_3 ? 1 : sort_label_0 - sort_label_2) [L42] 1 sort_label_is_null_3 ? 1 : sort_label_0 - sort_label_2 [L42] 1 sort_label_0 - sort_label_2 VAL [result_4=0, result_5=0, sort_label_0=-2147483648, sort_label_2=1, sort_label_is_null_1=0, sort_label_is_null_3=0] - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 58]: 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: 59]: 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, 144 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 5509.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5192.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.3ms SsaConstructionTime, 60.3ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-06 16:17:21,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...