/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/popl20-threaded-sum-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 15:10:19,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:10:19,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:10:19,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 15:10:19,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 15:10:19,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 15:10:19,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 15:10:19,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-07 15:10:19,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:10:19,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:10:19,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:10:19,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:10:19,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:10:19,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:10:19,309 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:10:19,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:10:19,310 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:10:19,310 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:10:19,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:10:19,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:10:19,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:10:19,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-07 15:10:19,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:10:19,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-07 15:10:19,312 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-07 15:10:19,312 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:10:19,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-07 15:10:19,312 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:10:19,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-07 15:10:19,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:10:19,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:10:19,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:10:19,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:10:19,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:10:19,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:10:19,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-07 15:10:19,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-07 15:10:19,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-07 15:10:19,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-07 15:10:19,315 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:10:19,315 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:10:19,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:10:19,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:10:19,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:10:19,749 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:10:19,750 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:10:19,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c [2021-10-07 15:10:19,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87e0fc927/8dd882ccfc59452aa5ec1e83878c55e5/FLAG559faa32e [2021-10-07 15:10:20,406 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:10:20,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c [2021-10-07 15:10:20,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87e0fc927/8dd882ccfc59452aa5ec1e83878c55e5/FLAG559faa32e [2021-10-07 15:10:20,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87e0fc927/8dd882ccfc59452aa5ec1e83878c55e5 [2021-10-07 15:10:20,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:10:20,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-07 15:10:20,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:10:20,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:10:20,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:10:20,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:10:20" (1/1) ... [2021-10-07 15:10:20,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@775e5370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:20, skipping insertion in model container [2021-10-07 15:10:20,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:10:20" (1/1) ... [2021-10-07 15:10:20,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:10:20,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:10:21,128 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/popl20-threaded-sum-3.wvr.c[2442,2455] [2021-10-07 15:10:21,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:10:21,142 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:10:21,172 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/popl20-threaded-sum-3.wvr.c[2442,2455] [2021-10-07 15:10:21,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:10:21,197 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:10:21,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:21 WrapperNode [2021-10-07 15:10:21,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:10:21,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:10:21,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:10:21,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:10:21,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:21" (1/1) ... [2021-10-07 15:10:21,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:21" (1/1) ... [2021-10-07 15:10:21,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:10:21,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:10:21,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:10:21,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:10:21,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:21" (1/1) ... [2021-10-07 15:10:21,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:21" (1/1) ... [2021-10-07 15:10:21,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:21" (1/1) ... [2021-10-07 15:10:21,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:21" (1/1) ... [2021-10-07 15:10:21,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:21" (1/1) ... [2021-10-07 15:10:21,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:21" (1/1) ... [2021-10-07 15:10:21,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:21" (1/1) ... [2021-10-07 15:10:21,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:10:21,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:10:21,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:10:21,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:10:21,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:21" (1/1) ... [2021-10-07 15:10:21,300 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:10:21,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:10:21,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-07 15:10:21,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-07 15:10:21,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:10:21,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:10:21,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:10:21,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:10:21,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 15:10:21,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 15:10:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-07 15:10:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:10:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-07 15:10:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-07 15:10:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-07 15:10:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:10:21,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:10:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-07 15:10:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:10:21,413 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 15:10:22,127 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:10:22,127 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-07 15:10:22,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:22 BoogieIcfgContainer [2021-10-07 15:10:22,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:10:22,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:10:22,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:10:22,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:10:22,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:10:20" (1/3) ... [2021-10-07 15:10:22,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a500aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:10:22, skipping insertion in model container [2021-10-07 15:10:22,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:21" (2/3) ... [2021-10-07 15:10:22,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a500aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:10:22, skipping insertion in model container [2021-10-07 15:10:22,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:22" (3/3) ... [2021-10-07 15:10:22,146 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2021-10-07 15:10:22,152 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-07 15:10:22,152 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:10:22,153 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-10-07 15:10:22,153 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:10:22,208 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,210 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,210 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,210 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,211 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,211 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,211 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,211 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,211 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,212 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,212 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,212 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,212 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,213 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,213 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,213 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,213 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,213 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,214 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,214 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,214 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,215 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,215 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,215 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,219 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,224 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,224 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,224 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,224 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,224 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,225 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,225 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,225 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,225 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,225 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,226 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,227 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,227 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,227 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,227 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,227 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,228 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,228 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,228 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,228 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,228 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,229 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,229 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,229 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,229 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,229 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,237 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,238 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,238 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,238 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,241 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,241 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,241 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,242 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,244 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,245 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,245 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,246 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:10:22,258 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-07 15:10:22,327 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:10:22,340 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 [2021-10-07 15:10:22,340 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-10-07 15:10:22,364 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:10:22,377 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 123 transitions, 270 flow [2021-10-07 15:10:22,382 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 123 transitions, 270 flow [2021-10-07 15:10:22,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 123 transitions, 270 flow [2021-10-07 15:10:22,481 INFO L129 PetriNetUnfolder]: 8/120 cut-off events. [2021-10-07 15:10:22,482 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-07 15:10:22,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 120 events. 8/120 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 108 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2021-10-07 15:10:22,495 INFO L116 LiptonReduction]: Number of co-enabled transitions 1378 [2021-10-07 15:10:28,539 INFO L131 LiptonReduction]: Checked pairs total: 4670 [2021-10-07 15:10:28,540 INFO L133 LiptonReduction]: Total number of compositions: 116 [2021-10-07 15:10:28,550 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 41 transitions, 106 flow [2021-10-07 15:10:28,618 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 917 states, 789 states have (on average 3.868187579214195) internal successors, (3052), 916 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:28,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 917 states, 789 states have (on average 3.868187579214195) internal successors, (3052), 916 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:28,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:10:28,633 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:10:28,634 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:10:28,635 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2021-10-07 15:10:28,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:10:28,644 INFO L82 PathProgramCache]: Analyzing trace with hash 535441, now seen corresponding path program 1 times [2021-10-07 15:10:28,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:10:28,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23630205] [2021-10-07 15:10:28,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:10:28,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:10:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:10:28,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:10:28,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:10:28,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23630205] [2021-10-07 15:10:28,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23630205] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:10:28,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:10:28,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 15:10:28,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213759026] [2021-10-07 15:10:28,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:10:28,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:10:28,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:10:28,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:10:28,886 INFO L87 Difference]: Start difference. First operand has 917 states, 789 states have (on average 3.868187579214195) internal successors, (3052), 916 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:28,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:10:28,956 INFO L93 Difference]: Finished difference Result 521 states and 1707 transitions. [2021-10-07 15:10:28,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:10:28,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-07 15:10:28,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:10:28,984 INFO L225 Difference]: With dead ends: 521 [2021-10-07 15:10:28,985 INFO L226 Difference]: Without dead ends: 521 [2021-10-07 15:10:28,987 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:10:29,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2021-10-07 15:10:29,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2021-10-07 15:10:29,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 470 states have (on average 3.6319148936170214) internal successors, (1707), 520 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:29,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 1707 transitions. [2021-10-07 15:10:29,134 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 1707 transitions. Word has length 3 [2021-10-07 15:10:29,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:10:29,135 INFO L470 AbstractCegarLoop]: Abstraction has 521 states and 1707 transitions. [2021-10-07 15:10:29,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:29,135 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 1707 transitions. [2021-10-07 15:10:29,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:10:29,136 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:10:29,136 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-07 15:10:29,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-07 15:10:29,137 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2021-10-07 15:10:29,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:10:29,137 INFO L82 PathProgramCache]: Analyzing trace with hash 16596462, now seen corresponding path program 1 times [2021-10-07 15:10:29,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:10:29,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382498834] [2021-10-07 15:10:29,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:10:29,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:10:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:10:29,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:10:29,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:10:29,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382498834] [2021-10-07 15:10:29,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382498834] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:10:29,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:10:29,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 15:10:29,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187795050] [2021-10-07 15:10:29,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:10:29,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:10:29,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:10:29,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:10:29,242 INFO L87 Difference]: Start difference. First operand 521 states and 1707 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:29,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:10:29,271 INFO L93 Difference]: Finished difference Result 868 states and 2914 transitions. [2021-10-07 15:10:29,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:10:29,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-07 15:10:29,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:10:29,281 INFO L225 Difference]: With dead ends: 868 [2021-10-07 15:10:29,282 INFO L226 Difference]: Without dead ends: 868 [2021-10-07 15:10:29,282 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:10:29,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2021-10-07 15:10:29,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 693. [2021-10-07 15:10:29,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 642 states have (on average 3.836448598130841) internal successors, (2463), 692 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:29,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 2463 transitions. [2021-10-07 15:10:29,320 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 2463 transitions. Word has length 4 [2021-10-07 15:10:29,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:10:29,321 INFO L470 AbstractCegarLoop]: Abstraction has 693 states and 2463 transitions. [2021-10-07 15:10:29,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:29,321 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 2463 transitions. [2021-10-07 15:10:29,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:10:29,322 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:10:29,322 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-07 15:10:29,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-07 15:10:29,323 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2021-10-07 15:10:29,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:10:29,323 INFO L82 PathProgramCache]: Analyzing trace with hash 16596463, now seen corresponding path program 1 times [2021-10-07 15:10:29,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:10:29,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207925539] [2021-10-07 15:10:29,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:10:29,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:10:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:10:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:10:29,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:10:29,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207925539] [2021-10-07 15:10:29,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207925539] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:10:29,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:10:29,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 15:10:29,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914566646] [2021-10-07 15:10:29,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:10:29,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:10:29,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:10:29,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:10:29,396 INFO L87 Difference]: Start difference. First operand 693 states and 2463 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:29,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:10:29,419 INFO L93 Difference]: Finished difference Result 607 states and 2085 transitions. [2021-10-07 15:10:29,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:10:29,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-07 15:10:29,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:10:29,426 INFO L225 Difference]: With dead ends: 607 [2021-10-07 15:10:29,426 INFO L226 Difference]: Without dead ends: 607 [2021-10-07 15:10:29,427 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:10:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2021-10-07 15:10:29,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2021-10-07 15:10:29,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 572 states have (on average 3.645104895104895) internal successors, (2085), 606 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:29,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 2085 transitions. [2021-10-07 15:10:29,477 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 2085 transitions. Word has length 4 [2021-10-07 15:10:29,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:10:29,478 INFO L470 AbstractCegarLoop]: Abstraction has 607 states and 2085 transitions. [2021-10-07 15:10:29,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:29,478 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 2085 transitions. [2021-10-07 15:10:29,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:10:29,480 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:10:29,480 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:10:29,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-07 15:10:29,481 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2021-10-07 15:10:29,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:10:29,482 INFO L82 PathProgramCache]: Analyzing trace with hash 514613623, now seen corresponding path program 1 times [2021-10-07 15:10:29,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:10:29,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266647890] [2021-10-07 15:10:29,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:10:29,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:10:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:10:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:10:29,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:10:29,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266647890] [2021-10-07 15:10:29,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266647890] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:10:29,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:10:29,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 15:10:29,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095939041] [2021-10-07 15:10:29,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:10:29,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:10:29,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:10:29,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:10:29,583 INFO L87 Difference]: Start difference. First operand 607 states and 2085 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:29,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:10:29,609 INFO L93 Difference]: Finished difference Result 511 states and 1747 transitions. [2021-10-07 15:10:29,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:10:29,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-07 15:10:29,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:10:29,615 INFO L225 Difference]: With dead ends: 511 [2021-10-07 15:10:29,615 INFO L226 Difference]: Without dead ends: 511 [2021-10-07 15:10:29,615 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:10:29,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2021-10-07 15:10:29,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2021-10-07 15:10:29,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 484 states have (on average 3.6095041322314048) internal successors, (1747), 510 states have internal predecessors, (1747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:29,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 1747 transitions. [2021-10-07 15:10:29,640 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 1747 transitions. Word has length 5 [2021-10-07 15:10:29,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:10:29,641 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 1747 transitions. [2021-10-07 15:10:29,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:10:29,641 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 1747 transitions. [2021-10-07 15:10:29,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 15:10:29,642 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:10:29,642 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-07 15:10:29,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-07 15:10:29,643 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2021-10-07 15:10:29,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:10:29,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1226848915, now seen corresponding path program 1 times [2021-10-07 15:10:29,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:10:29,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492655735] [2021-10-07 15:10:29,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:10:29,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:10:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:10:29,676 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-07 15:10:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:10:29,720 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-07 15:10:29,721 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-07 15:10:29,722 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:10:29,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:10:29,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 15:10:29,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:10:29,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-07 15:10:29,741 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:10:29,741 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:10:29,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:10:29 BasicIcfg [2021-10-07 15:10:29,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 15:10:29,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-07 15:10:29,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-07 15:10:29,771 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-07 15:10:29,771 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:22" (3/4) ... [2021-10-07 15:10:29,773 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-07 15:10:29,825 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/popl20-threaded-sum-3.wvr.c-witness.graphml [2021-10-07 15:10:29,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-07 15:10:29,828 INFO L168 Benchmark]: Toolchain (without parser) took 9074.58 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 125.3 MB in the beginning and 120.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 41.4 MB. Max. memory is 8.0 GB. [2021-10-07 15:10:29,828 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 133.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:10:29,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.88 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 114.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-07 15:10:29,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.26 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 112.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:10:29,830 INFO L168 Benchmark]: Boogie Preprocessor took 36.96 ms. Allocated memory is still 151.0 MB. Free memory was 112.5 MB in the beginning and 111.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:10:29,831 INFO L168 Benchmark]: RCFGBuilder took 846.37 ms. Allocated memory is still 151.0 MB. Free memory was 111.2 MB in the beginning and 116.9 MB in the end (delta: -5.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 8.0 GB. [2021-10-07 15:10:29,832 INFO L168 Benchmark]: TraceAbstraction took 7633.47 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 116.5 MB in the beginning and 122.9 MB in the end (delta: -6.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 8.0 GB. [2021-10-07 15:10:29,833 INFO L168 Benchmark]: Witness Printer took 55.19 ms. Allocated memory is still 186.6 MB. Free memory was 122.9 MB in the beginning and 120.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:10:29,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 133.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 436.88 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 114.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.26 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 112.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.96 ms. Allocated memory is still 151.0 MB. Free memory was 112.5 MB in the beginning and 111.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 846.37 ms. Allocated memory is still 151.0 MB. Free memory was 111.2 MB in the beginning and 116.9 MB in the end (delta: -5.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7633.47 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 116.5 MB in the beginning and 122.9 MB in the end (delta: -6.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 8.0 GB. * Witness Printer took 55.19 ms. Allocated memory is still 186.6 MB. Free memory was 122.9 MB in the beginning and 120.2 MB in the end (delta: 2.6 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: 6158.3ms, 125 PlacesBefore, 48 PlacesAfterwards, 123 TransitionsBefore, 41 TransitionsAfterwards, 1378 CoEnabledTransitionPairs, 7 FixpointIterations, 68 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 6 ConcurrentYvCompositions, 5 ChoiceCompositions, 116 TotalNumberOfCompositions, 4670 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2811, positive: 2691, positive conditional: 0, positive unconditional: 2691, negative: 120, negative conditional: 0, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 891, positive: 874, positive conditional: 0, positive unconditional: 874, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 891, positive: 853, positive conditional: 0, positive unconditional: 853, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 105, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2811, positive: 1817, positive conditional: 0, positive unconditional: 1817, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 891, unknown conditional: 0, unknown unconditional: 891] , Statistics on independence cache: Total cache size (in pairs): 187, Positive cache size: 178, Positive conditional cache size: 0, Positive unconditional cache size: 178, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - 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: 58]: integer overflow possible integer overflow possible We found a FailurePath: [L38] 0 int s, t, m, c, T, S, u, U; [L80] 0 pthread_t t1, t2, t3; [L82] 0 S = __VERIFIER_nondet_int() [L83] 0 T = __VERIFIER_nondet_int() [L84] 0 U = __VERIFIER_nondet_int() [L85] 0 s = S [L86] 0 t = T [L87] 0 u = U [L35] COND FALSE 0 !(!cond) [L92] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [c=0, m=0, S=2147483647, s=2147483647, T=1, t=1, U=9, u=9] [L93] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [c=0, m=0, s=2147483647, S=2147483647, t=1, T=1, U=9, u=9] [L54] COND TRUE 2 t > 0 || u > 0 VAL [c=0, m=0, s=2147483647, S=2147483647, t=1, T=1, u=9, U=9] [L56] COND TRUE 2 t > 0 [L57] 2 t-- [L58] 2 s++ VAL [c=0, m=0, S=2147483647, s=2147483647, s++=2147483647, T=1, t=0, u=9, U=9] - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: 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: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: 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 integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 99]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 99]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 99]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 99]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 94]: 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: 92]: 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: 93]: 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, 147 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 7411.8ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 18.1ms, AutomataDifference: 228.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6277.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 106 SDtfs, 105 SDslu, 28 SDs, 0 SdLazy, 25 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=917occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 242.6ms AutomataMinimizationTime, 4 MinimizatonAttempts, 175 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.1ms SsaConstructionTime, 150.3ms SatisfiabilityAnalysisTime, 212.0ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-07 15:10:29,890 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...