/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/simpl-str-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-06 16:17:40,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 16:17:40,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 16:17:40,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-06 16:17:40,166 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 16:17:40,199 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 16:17:40,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 16:17:40,200 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 16:17:40,200 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 16:17:40,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 16:17:40,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 16:17:40,202 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 16:17:40,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 16:17:40,203 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 16:17:40,203 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-06 16:17:40,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 16:17:40,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 16:17:40,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 16:17:40,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-06 16:17:40,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 16:17:40,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-06 16:17:40,204 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-06 16:17:40,205 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 16:17:40,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-06 16:17:40,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 16:17:40,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-06 16:17:40,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 16:17:40,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 16:17:40,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 16:17:40,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:17:40,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 16:17:40,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 16:17:40,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-06 16:17:40,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-06 16:17:40,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-06 16:17:40,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-06 16:17:40,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-06 16:17:40,208 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 16:17:40,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 16:17:40,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 16:17:40,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 16:17:40,635 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 16:17:40,636 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 16:17:40,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/simpl-str-subst.wvr.c [2021-10-06 16:17:40,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a44712ac/875893c5154a4b999c3ff751727a9245/FLAGe56b4791a [2021-10-06 16:17:41,391 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 16:17:41,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/simpl-str-subst.wvr.c [2021-10-06 16:17:41,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a44712ac/875893c5154a4b999c3ff751727a9245/FLAGe56b4791a [2021-10-06 16:17:41,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a44712ac/875893c5154a4b999c3ff751727a9245 [2021-10-06 16:17:41,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 16:17:41,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-06 16:17:41,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 16:17:41,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 16:17:41,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 16:17:41,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:17:41" (1/1) ... [2021-10-06 16:17:41,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e2a0c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:41, skipping insertion in model container [2021-10-06 16:17:41,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:17:41" (1/1) ... [2021-10-06 16:17:41,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 16:17:41,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 16:17:41,956 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/simpl-str-subst.wvr.c[2475,2488] [2021-10-06 16:17:41,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:17:41,968 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 16:17:42,007 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/simpl-str-subst.wvr.c[2475,2488] [2021-10-06 16:17:42,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:17:42,031 INFO L208 MainTranslator]: Completed translation [2021-10-06 16:17:42,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:42 WrapperNode [2021-10-06 16:17:42,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 16:17:42,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 16:17:42,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 16:17:42,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 16:17:42,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:42" (1/1) ... [2021-10-06 16:17:42,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:42" (1/1) ... [2021-10-06 16:17:42,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 16:17:42,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 16:17:42,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 16:17:42,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 16:17:42,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:42" (1/1) ... [2021-10-06 16:17:42,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:42" (1/1) ... [2021-10-06 16:17:42,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:42" (1/1) ... [2021-10-06 16:17:42,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:42" (1/1) ... [2021-10-06 16:17:42,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:42" (1/1) ... [2021-10-06 16:17:42,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:42" (1/1) ... [2021-10-06 16:17:42,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:42" (1/1) ... [2021-10-06 16:17:42,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 16:17:42,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 16:17:42,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 16:17:42,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 16:17:42,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:42" (1/1) ... [2021-10-06 16:17:42,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:17:42,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 16:17:42,177 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 16:17:42,194 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 16:17:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 16:17:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 16:17:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 16:17:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 16:17:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-06 16:17:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-06 16:17:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-06 16:17:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 16:17:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-06 16:17:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 16:17:42,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 16:17:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-06 16:17:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 16:17:42,265 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 16:17:42,782 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 16:17:42,783 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-06 16:17:42,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:17:42 BoogieIcfgContainer [2021-10-06 16:17:42,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 16:17:42,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 16:17:42,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 16:17:42,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 16:17:42,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 04:17:41" (1/3) ... [2021-10-06 16:17:42,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfcda1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:17:42, skipping insertion in model container [2021-10-06 16:17:42,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:17:42" (2/3) ... [2021-10-06 16:17:42,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfcda1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:17:42, skipping insertion in model container [2021-10-06 16:17:42,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:17:42" (3/3) ... [2021-10-06 16:17:42,795 INFO L111 eAbstractionObserver]: Analyzing ICFG simpl-str-subst.wvr.c [2021-10-06 16:17:42,801 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-06 16:17:42,802 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 16:17:42,802 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-06 16:17:42,802 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 16:17:42,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,881 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,881 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,881 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,881 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,881 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,882 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,882 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,882 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,882 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,883 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,884 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,884 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,884 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,884 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,886 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,886 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,886 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,886 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,886 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,887 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,887 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,887 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,887 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,888 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,888 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,888 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,888 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,888 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,889 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,890 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,890 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,890 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,890 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,890 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,891 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,891 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,891 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,891 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,894 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,894 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,894 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,894 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,894 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,895 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,904 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,905 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,905 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,905 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,905 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,907 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,908 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,908 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,908 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,908 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:17:42,917 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-06 16:17:42,970 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-06 16:17:42,979 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 16:17:42,979 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-10-06 16:17:42,998 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-06 16:17:43,011 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 151 transitions, 326 flow [2021-10-06 16:17:43,015 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 151 transitions, 326 flow [2021-10-06 16:17:43,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 151 transitions, 326 flow [2021-10-06 16:17:43,090 INFO L129 PetriNetUnfolder]: 11/148 cut-off events. [2021-10-06 16:17:43,090 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-06 16:17:43,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 148 events. 11/148 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 227 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2021-10-06 16:17:43,105 INFO L116 LiptonReduction]: Number of co-enabled transitions 4158 [2021-10-06 16:17:49,214 INFO L131 LiptonReduction]: Checked pairs total: 4242 [2021-10-06 16:17:49,215 INFO L133 LiptonReduction]: Total number of compositions: 167 [2021-10-06 16:17:49,226 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 25 transitions, 74 flow [2021-10-06 16:17:49,253 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 204 states, 178 states have (on average 2.949438202247191) internal successors, (525), 203 states have internal predecessors, (525), 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 16:17:49,257 INFO L276 IsEmpty]: Start isEmpty. Operand has 204 states, 178 states have (on average 2.949438202247191) internal successors, (525), 203 states have internal predecessors, (525), 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 16:17:49,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 16:17:49,263 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:17:49,264 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 16:17:49,264 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2021-10-06 16:17:49,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:17:49,271 INFO L82 PathProgramCache]: Analyzing trace with hash 600427, now seen corresponding path program 1 times [2021-10-06 16:17:49,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:17:49,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31782605] [2021-10-06 16:17:49,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:17:49,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:17:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 16:17:49,412 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-06 16:17:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 16:17:49,465 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-06 16:17:49,468 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-06 16:17:49,469 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:49,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:49,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:49,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:49,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:49,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:49,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:49,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 16:17:49,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 16:17:49,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-06 16:17:49,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:49,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:49,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:49,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:49,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:17:49,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-06 16:17:49,485 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 16:17:49,485 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 16:17:49,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 04:17:49 BasicIcfg [2021-10-06 16:17:49,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 16:17:49,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-06 16:17:49,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-06 16:17:49,509 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-06 16:17:49,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:17:42" (3/4) ... [2021-10-06 16:17:49,512 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-06 16:17:49,557 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/chl/simpl-str-subst.wvr.c-witness.graphml [2021-10-06 16:17:49,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-06 16:17:49,560 INFO L168 Benchmark]: Toolchain (without parser) took 7840.76 ms. Allocated memory was 175.1 MB in the beginning and 215.0 MB in the end (delta: 39.8 MB). Free memory was 150.2 MB in the beginning and 177.7 MB in the end (delta: -27.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:49,561 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 175.1 MB. Free memory is still 152.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 16:17:49,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.74 ms. Allocated memory is still 175.1 MB. Free memory was 149.8 MB in the beginning and 139.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:49,563 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.14 ms. Allocated memory is still 175.1 MB. Free memory was 139.4 MB in the beginning and 137.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:49,563 INFO L168 Benchmark]: Boogie Preprocessor took 48.10 ms. Allocated memory is still 175.1 MB. Free memory was 137.8 MB in the beginning and 136.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:49,564 INFO L168 Benchmark]: RCFGBuilder took 655.54 ms. Allocated memory is still 175.1 MB. Free memory was 136.5 MB in the beginning and 122.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:49,565 INFO L168 Benchmark]: TraceAbstraction took 6720.48 ms. Allocated memory was 175.1 MB in the beginning and 215.0 MB in the end (delta: 39.8 MB). Free memory was 122.1 MB in the beginning and 179.8 MB in the end (delta: -57.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 16:17:49,565 INFO L168 Benchmark]: Witness Printer took 49.04 ms. Allocated memory is still 215.0 MB. Free memory was 179.8 MB in the beginning and 177.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 16:17:49,569 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 175.1 MB. Free memory is still 152.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 300.74 ms. Allocated memory is still 175.1 MB. Free memory was 149.8 MB in the beginning and 139.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.14 ms. Allocated memory is still 175.1 MB. Free memory was 139.4 MB in the beginning and 137.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 48.10 ms. Allocated memory is still 175.1 MB. Free memory was 137.8 MB in the beginning and 136.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 655.54 ms. Allocated memory is still 175.1 MB. Free memory was 136.5 MB in the beginning and 122.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6720.48 ms. Allocated memory was 175.1 MB in the beginning and 215.0 MB in the end (delta: 39.8 MB). Free memory was 122.1 MB in the beginning and 179.8 MB in the end (delta: -57.7 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 49.04 ms. Allocated memory is still 215.0 MB. Free memory was 179.8 MB in the beginning and 177.7 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: 6200.5ms, 150 PlacesBefore, 35 PlacesAfterwards, 151 TransitionsBefore, 25 TransitionsAfterwards, 4158 CoEnabledTransitionPairs, 7 FixpointIterations, 62 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 25 ConcurrentYvCompositions, 11 ChoiceCompositions, 167 TotalNumberOfCompositions, 4242 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4242, positive: 4242, positive conditional: 0, positive unconditional: 4242, 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: 3096, positive: 3096, positive conditional: 0, positive unconditional: 3096, 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: 3096, positive: 3096, positive conditional: 0, positive unconditional: 3096, 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: 4242, positive: 1146, positive conditional: 0, positive unconditional: 1146, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3096, unknown conditional: 0, unknown unconditional: 3096] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, 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: 41]: integer overflow possible integer overflow possible We found a FailurePath: [L38] 0 int length_0, to_int_1, length_2, to_int_3, length_4, to_int_5, result_6, result_7, result_8; [L53] 0 pthread_t t1, t2, t3; [L56] 0 length_0 = __VERIFIER_nondet_int() [L57] 0 to_int_1 = __VERIFIER_nondet_int() [L58] 0 length_2 = __VERIFIER_nondet_int() [L59] 0 to_int_3 = __VERIFIER_nondet_int() [L60] 0 length_4 = __VERIFIER_nondet_int() [L61] 0 to_int_5 = __VERIFIER_nondet_int() [L64] FCALL, FORK 0 pthread_create(&t1, NULL, thread1, NULL) VAL [length_0=1, length_2=1, length_4=0, result_6=0, result_7=0, result_8=0, to_int_1=-2147483648, to_int_3=1, to_int_5=0] [L41] 1 length_0 == 0 ? (length_2 == 0 ? 0 : 1) : (length_2 == 0 ? -1 : to_int_1 - to_int_3) [L41] 1 length_2 == 0 ? -1 : to_int_1 - to_int_3 [L41] 1 to_int_1 - to_int_3 VAL [length_0=1, length_2=1, length_4=0, result_6=0, result_7=0, result_8=0, to_int_1=-2147483648, to_int_3=1, to_int_5=0] - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 66]: 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: 64]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 201 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 6512.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.4ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6273.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred 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: 6.6ms SsaConstructionTime, 42.8ms 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 16:17:49,621 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...