/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/bench/exp2x3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-06 16:18:00,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 16:18:00,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 16:18:00,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-06 16:18:00,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-06 16:18:00,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-06 16:18:00,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-06 16:18:00,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-06 16:18:00,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-06 16:18:00,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-06 16:18:00,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-06 16:18:00,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-06 16:18:00,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-06 16:18:00,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-06 16:18:00,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-06 16:18:00,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-06 16:18:00,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-06 16:18:00,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-06 16:18:00,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-06 16:18:00,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-06 16:18:00,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-06 16:18:00,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-06 16:18:00,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-06 16:18:00,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-06 16:18:00,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-06 16:18:00,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-06 16:18:00,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-06 16:18:00,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-06 16:18:00,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-06 16:18:00,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-06 16:18:00,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-06 16:18:00,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-06 16:18:00,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-06 16:18:00,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-06 16:18:00,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-06 16:18:00,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-06 16:18:00,837 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 16:18:00,865 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 16:18:00,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 16:18:00,866 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 16:18:00,866 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 16:18:00,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 16:18:00,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 16:18:00,868 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 16:18:00,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 16:18:00,869 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 16:18:00,869 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-06 16:18:00,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 16:18:00,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 16:18:00,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 16:18:00,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-06 16:18:00,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 16:18:00,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-06 16:18:00,871 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-06 16:18:00,871 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 16:18:00,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-06 16:18:00,872 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 16:18:00,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-06 16:18:00,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 16:18:00,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 16:18:00,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 16:18:00,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:18:00,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 16:18:00,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 16:18:00,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-06 16:18:00,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-06 16:18:00,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-06 16:18:00,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-06 16:18:00,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-06 16:18:00,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 16:18:01,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 16:18:01,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 16:18:01,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 16:18:01,299 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 16:18:01,300 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 16:18:01,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/bench/exp2x3.wvr.c [2021-10-06 16:18:01,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5c2d225c/540150b7e884470aafa1596e1c49cebc/FLAG1082e9885 [2021-10-06 16:18:02,048 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 16:18:02,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/bench/exp2x3.wvr.c [2021-10-06 16:18:02,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5c2d225c/540150b7e884470aafa1596e1c49cebc/FLAG1082e9885 [2021-10-06 16:18:02,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5c2d225c/540150b7e884470aafa1596e1c49cebc [2021-10-06 16:18:02,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 16:18:02,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-06 16:18:02,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 16:18:02,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 16:18:02,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 16:18:02,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:18:02" (1/1) ... [2021-10-06 16:18:02,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77087a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02, skipping insertion in model container [2021-10-06 16:18:02,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:18:02" (1/1) ... [2021-10-06 16:18:02,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 16:18:02,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 16:18:02,633 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/bench/exp2x3.wvr.c[2200,2213] [2021-10-06 16:18:02,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:18:02,644 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 16:18:02,670 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/bench/exp2x3.wvr.c[2200,2213] [2021-10-06 16:18:02,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:18:02,687 INFO L208 MainTranslator]: Completed translation [2021-10-06 16:18:02,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02 WrapperNode [2021-10-06 16:18:02,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 16:18:02,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 16:18:02,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 16:18:02,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 16:18:02,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02" (1/1) ... [2021-10-06 16:18:02,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02" (1/1) ... [2021-10-06 16:18:02,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 16:18:02,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 16:18:02,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 16:18:02,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 16:18:02,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02" (1/1) ... [2021-10-06 16:18:02,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02" (1/1) ... [2021-10-06 16:18:02,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02" (1/1) ... [2021-10-06 16:18:02,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02" (1/1) ... [2021-10-06 16:18:02,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02" (1/1) ... [2021-10-06 16:18:02,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02" (1/1) ... [2021-10-06 16:18:02,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02" (1/1) ... [2021-10-06 16:18:02,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 16:18:02,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 16:18:02,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 16:18:02,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 16:18:02,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02" (1/1) ... [2021-10-06 16:18:02,817 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:18:02,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 16:18:02,847 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 16:18:02,865 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 16:18:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 16:18:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 16:18:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 16:18:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 16:18:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-06 16:18:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-06 16:18:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-06 16:18:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-06 16:18:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-06 16:18:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 16:18:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-06 16:18:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 16:18:02,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 16:18:02,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-06 16:18:02,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 16:18:02,927 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 16:18:03,330 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 16:18:03,330 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-06 16:18:03,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:18:03 BoogieIcfgContainer [2021-10-06 16:18:03,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 16:18:03,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 16:18:03,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 16:18:03,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 16:18:03,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 04:18:02" (1/3) ... [2021-10-06 16:18:03,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de827bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:18:03, skipping insertion in model container [2021-10-06 16:18:03,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:02" (2/3) ... [2021-10-06 16:18:03,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de827bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:18:03, skipping insertion in model container [2021-10-06 16:18:03,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:18:03" (3/3) ... [2021-10-06 16:18:03,344 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x3.wvr.c [2021-10-06 16:18:03,352 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-06 16:18:03,352 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 16:18:03,353 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-06 16:18:03,353 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 16:18:03,407 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,407 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,408 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,434 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,438 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,439 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,444 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,444 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,447 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,449 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,449 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,450 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,454 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,454 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,455 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,455 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,465 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,466 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,485 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,486 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,490 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,491 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,498 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,498 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:03,533 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-06 16:18:03,607 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-06 16:18:03,618 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 16:18:03,619 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-10-06 16:18:03,660 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-06 16:18:03,683 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 134 transitions, 300 flow [2021-10-06 16:18:03,687 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 134 transitions, 300 flow [2021-10-06 16:18:03,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 134 transitions, 300 flow [2021-10-06 16:18:03,817 INFO L129 PetriNetUnfolder]: 10/130 cut-off events. [2021-10-06 16:18:03,818 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-06 16:18:03,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 130 events. 10/130 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2021-10-06 16:18:03,828 INFO L116 LiptonReduction]: Number of co-enabled transitions 2520 [2021-10-06 16:18:10,839 INFO L131 LiptonReduction]: Checked pairs total: 3032 [2021-10-06 16:18:10,839 INFO L133 LiptonReduction]: Total number of compositions: 120 [2021-10-06 16:18:10,849 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 37 transitions, 106 flow [2021-10-06 16:18:10,929 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 842 states, 762 states have (on average 4.6286089238845145) internal successors, (3527), 841 states have internal predecessors, (3527), 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 16:18:10,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 842 states, 762 states have (on average 4.6286089238845145) internal successors, (3527), 841 states have internal predecessors, (3527), 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 16:18:10,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 16:18:10,941 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:10,942 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 16:18:10,943 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2021-10-06 16:18:10,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:10,949 INFO L82 PathProgramCache]: Analyzing trace with hash 495459, now seen corresponding path program 1 times [2021-10-06 16:18:10,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:10,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496244980] [2021-10-06 16:18:10,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:10,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:11,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:11,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:11,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496244980] [2021-10-06 16:18:11,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496244980] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:11,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:11,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-06 16:18:11,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986662766] [2021-10-06 16:18:11,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 16:18:11,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:11,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 16:18:11,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 16:18:11,247 INFO L87 Difference]: Start difference. First operand has 842 states, 762 states have (on average 4.6286089238845145) internal successors, (3527), 841 states have internal predecessors, (3527), 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) [2021-10-06 16:18:11,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:11,317 INFO L93 Difference]: Finished difference Result 672 states and 2795 transitions. [2021-10-06 16:18:11,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 16:18:11,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-06 16:18:11,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:11,367 INFO L225 Difference]: With dead ends: 672 [2021-10-06 16:18:11,368 INFO L226 Difference]: Without dead ends: 672 [2021-10-06 16:18:11,369 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 16:18:11,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2021-10-06 16:18:11,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2021-10-06 16:18:11,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 619 states have (on average 4.51534733441034) internal successors, (2795), 671 states have internal predecessors, (2795), 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 16:18:11,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 2795 transitions. [2021-10-06 16:18:11,502 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 2795 transitions. Word has length 3 [2021-10-06 16:18:11,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:11,503 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 2795 transitions. [2021-10-06 16:18:11,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:11,504 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 2795 transitions. [2021-10-06 16:18:11,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 16:18:11,504 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:11,504 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 16:18:11,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-06 16:18:11,505 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2021-10-06 16:18:11,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:11,506 INFO L82 PathProgramCache]: Analyzing trace with hash 495428, now seen corresponding path program 1 times [2021-10-06 16:18:11,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:11,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841416799] [2021-10-06 16:18:11,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:11,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 16:18:11,558 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-06 16:18:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 16:18:11,622 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-06 16:18:11,623 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-06 16:18:11,625 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 16:18:11,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 16:18:11,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-06 16:18:11,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-06 16:18:11,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:11,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-06 16:18:11,641 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 16:18:11,641 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 16:18:11,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 04:18:11 BasicIcfg [2021-10-06 16:18:11,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 16:18:11,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-06 16:18:11,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-06 16:18:11,664 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-06 16:18:11,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:18:03" (3/4) ... [2021-10-06 16:18:11,667 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-06 16:18:11,712 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/bench/exp2x3.wvr.c-witness.graphml [2021-10-06 16:18:11,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-06 16:18:11,714 INFO L168 Benchmark]: Toolchain (without parser) took 9319.46 ms. Allocated memory was 151.0 MB in the beginning and 200.3 MB in the end (delta: 49.3 MB). Free memory was 125.9 MB in the beginning and 127.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 48.3 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:11,715 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 16:18:11,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.42 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 115.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:11,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.95 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 113.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:11,717 INFO L168 Benchmark]: Boogie Preprocessor took 63.25 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 112.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:11,718 INFO L168 Benchmark]: RCFGBuilder took 533.11 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 98.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:11,719 INFO L168 Benchmark]: TraceAbstraction took 8327.81 ms. Allocated memory was 151.0 MB in the beginning and 200.3 MB in the end (delta: 49.3 MB). Free memory was 98.0 MB in the beginning and 129.6 MB in the end (delta: -31.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:11,719 INFO L168 Benchmark]: Witness Printer took 47.92 ms. Allocated memory is still 200.3 MB. Free memory was 129.6 MB in the beginning and 127.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:11,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 284.42 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 115.4 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 46.95 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 113.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 63.25 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 112.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 533.11 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 98.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8327.81 ms. Allocated memory was 151.0 MB in the beginning and 200.3 MB in the end (delta: 49.3 MB). Free memory was 98.0 MB in the beginning and 129.6 MB in the end (delta: -31.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 8.0 GB. * Witness Printer took 47.92 ms. Allocated memory is still 200.3 MB. Free memory was 129.6 MB in the beginning and 127.5 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: 7152.3ms, 137 PlacesBefore, 46 PlacesAfterwards, 134 TransitionsBefore, 37 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 8 ConcurrentYvCompositions, 6 ChoiceCompositions, 120 TotalNumberOfCompositions, 3032 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3032, positive: 3032, positive conditional: 0, positive unconditional: 3032, 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: 1618, positive: 1618, positive conditional: 0, positive unconditional: 1618, 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: 1618, positive: 1618, positive conditional: 0, positive unconditional: 1618, 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: 3032, positive: 1414, positive conditional: 0, positive unconditional: 1414, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1618, unknown conditional: 0, unknown unconditional: 1618] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 140, Positive conditional cache size: 0, Positive unconditional cache size: 140, 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: 39]: integer overflow possible integer overflow possible We found a FailurePath: [L35] 0 int x1, x2, x3, x4, n; [L70] 0 pthread_t t1, t2, t3, t4; [L73] 0 x1 = __VERIFIER_nondet_int() [L74] 0 x2 = __VERIFIER_nondet_int() [L75] 0 x3 = __VERIFIER_nondet_int() [L76] 0 x4 = __VERIFIER_nondet_int() [L77] 0 n = __VERIFIER_nondet_int() [L32] COND FALSE 0 !(!cond) [L82] FCALL, FORK 0 pthread_create(&t1, NULL, thread1, NULL) VAL [n=1073741825, x1=1073741824, x2=1073741824, x3=1, x4=1] [L38] COND TRUE 1 x1 < n [L39] 1 x1 + x1 VAL [n=1073741825, x1=1073741824, x2=1073741824, x3=1, x4=1] - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 85]: 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: 84]: 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: 82]: 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: 83]: 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: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 165 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 8033.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 12.3ms, AutomataDifference: 142.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7310.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 27 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=842occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 115.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.9ms SsaConstructionTime, 93.6ms SatisfiabilityAnalysisTime, 107.3ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 16:18:11,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...