/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/parallel/misc-2-unrolled.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-06 16:18:45,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 16:18:45,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 16:18:45,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-06 16:18:45,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-06 16:18:45,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-06 16:18:45,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-06 16:18:45,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-06 16:18:45,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-06 16:18:45,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-06 16:18:45,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-06 16:18:45,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-06 16:18:45,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-06 16:18:45,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-06 16:18:45,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-06 16:18:45,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-06 16:18:45,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-06 16:18:45,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-06 16:18:45,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-06 16:18:45,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-06 16:18:45,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-06 16:18:45,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-06 16:18:45,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-06 16:18:45,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-06 16:18:45,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-06 16:18:45,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-06 16:18:45,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-06 16:18:45,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-06 16:18:45,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-06 16:18:45,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-06 16:18:45,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-06 16:18:45,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-06 16:18:45,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-06 16:18:45,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-06 16:18:45,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-06 16:18:45,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-06 16:18:45,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-06 16:18:45,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-06 16:18:45,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-06 16:18:45,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-06 16:18:45,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-06 16:18:45,188 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 16:18:45,234 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 16:18:45,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 16:18:45,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 16:18:45,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 16:18:45,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 16:18:45,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 16:18:45,239 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 16:18:45,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 16:18:45,240 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 16:18:45,240 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-06 16:18:45,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 16:18:45,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 16:18:45,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 16:18:45,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-06 16:18:45,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 16:18:45,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-06 16:18:45,243 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-06 16:18:45,243 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 16:18:45,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-06 16:18:45,243 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 16:18:45,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-06 16:18:45,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 16:18:45,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 16:18:45,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 16:18:45,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:18:45,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 16:18:45,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 16:18:45,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-06 16:18:45,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-06 16:18:45,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-06 16:18:45,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-06 16:18:45,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-06 16:18:45,246 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 16:18:45,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 16:18:45,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 16:18:45,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 16:18:45,658 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 16:18:45,658 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 16:18:45,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel/misc-2-unrolled.wvr.c [2021-10-06 16:18:45,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1f75dd0b/33bab35adcf14b609bf1d6e5b6bb4afb/FLAGc90b8ba5e [2021-10-06 16:18:46,381 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 16:18:46,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/misc-2-unrolled.wvr.c [2021-10-06 16:18:46,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1f75dd0b/33bab35adcf14b609bf1d6e5b6bb4afb/FLAGc90b8ba5e [2021-10-06 16:18:46,715 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1f75dd0b/33bab35adcf14b609bf1d6e5b6bb4afb [2021-10-06 16:18:46,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 16:18:46,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-06 16:18:46,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 16:18:46,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 16:18:46,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 16:18:46,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:18:46" (1/1) ... [2021-10-06 16:18:46,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180d4252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46, skipping insertion in model container [2021-10-06 16:18:46,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:18:46" (1/1) ... [2021-10-06 16:18:46,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 16:18:46,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 16:18:46,936 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/parallel/misc-2-unrolled.wvr.c[2163,2176] [2021-10-06 16:18:46,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:18:46,945 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 16:18:46,969 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/parallel/misc-2-unrolled.wvr.c[2163,2176] [2021-10-06 16:18:46,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:18:46,986 INFO L208 MainTranslator]: Completed translation [2021-10-06 16:18:46,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46 WrapperNode [2021-10-06 16:18:46,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 16:18:46,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 16:18:46,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 16:18:46,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 16:18:46,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46" (1/1) ... [2021-10-06 16:18:47,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46" (1/1) ... [2021-10-06 16:18:47,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 16:18:47,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 16:18:47,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 16:18:47,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 16:18:47,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46" (1/1) ... [2021-10-06 16:18:47,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46" (1/1) ... [2021-10-06 16:18:47,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46" (1/1) ... [2021-10-06 16:18:47,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46" (1/1) ... [2021-10-06 16:18:47,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46" (1/1) ... [2021-10-06 16:18:47,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46" (1/1) ... [2021-10-06 16:18:47,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46" (1/1) ... [2021-10-06 16:18:47,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 16:18:47,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 16:18:47,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 16:18:47,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 16:18:47,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46" (1/1) ... [2021-10-06 16:18:47,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:18:47,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 16:18:47,181 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 16:18:47,211 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 16:18:47,274 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 16:18:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 16:18:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 16:18:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 16:18:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-06 16:18:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 16:18:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-06 16:18:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-06 16:18:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-06 16:18:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 16:18:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 16:18:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-06 16:18:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 16:18:47,280 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 16:18:47,760 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 16:18:47,760 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-06 16:18:47,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:18:47 BoogieIcfgContainer [2021-10-06 16:18:47,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 16:18:47,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 16:18:47,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 16:18:47,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 16:18:47,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 04:18:46" (1/3) ... [2021-10-06 16:18:47,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c2fe27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:18:47, skipping insertion in model container [2021-10-06 16:18:47,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:46" (2/3) ... [2021-10-06 16:18:47,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c2fe27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:18:47, skipping insertion in model container [2021-10-06 16:18:47,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:18:47" (3/3) ... [2021-10-06 16:18:47,794 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-2-unrolled.wvr.c [2021-10-06 16:18:47,800 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-06 16:18:47,801 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 16:18:47,801 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-10-06 16:18:47,801 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 16:18:47,874 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,874 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,874 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,875 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,876 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,876 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,876 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,881 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,881 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,881 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,882 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,882 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,882 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,883 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,883 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,883 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,885 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,885 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,885 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,886 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,886 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,891 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,891 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,891 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,891 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,892 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,892 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,892 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,892 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,893 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,896 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,896 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,896 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,896 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,905 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,905 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,906 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,906 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,906 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,907 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,907 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,907 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,907 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,908 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,908 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,908 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,908 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,914 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,915 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,915 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,915 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:47,940 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-06 16:18:48,007 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-06 16:18:48,015 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 16:18:48,016 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-10-06 16:18:48,033 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-06 16:18:48,045 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 126 transitions, 268 flow [2021-10-06 16:18:48,048 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 126 transitions, 268 flow [2021-10-06 16:18:48,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 126 transitions, 268 flow [2021-10-06 16:18:48,115 INFO L129 PetriNetUnfolder]: 6/124 cut-off events. [2021-10-06 16:18:48,116 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-06 16:18:48,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 124 events. 6/124 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 201 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2021-10-06 16:18:48,129 INFO L116 LiptonReduction]: Number of co-enabled transitions 2832 [2021-10-06 16:18:52,969 INFO L131 LiptonReduction]: Checked pairs total: 5886 [2021-10-06 16:18:52,970 INFO L133 LiptonReduction]: Total number of compositions: 133 [2021-10-06 16:18:52,979 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 39 transitions, 94 flow [2021-10-06 16:18:53,019 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 444 states, 324 states have (on average 3.3333333333333335) internal successors, (1080), 443 states have internal predecessors, (1080), 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 16:18:53,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 444 states, 324 states have (on average 3.3333333333333335) internal successors, (1080), 443 states have internal predecessors, (1080), 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 16:18:53,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 16:18:53,030 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:53,030 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 16:18:53,031 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2021-10-06 16:18:53,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:53,037 INFO L82 PathProgramCache]: Analyzing trace with hash 516102, now seen corresponding path program 1 times [2021-10-06 16:18:53,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:53,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336247005] [2021-10-06 16:18:53,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:53,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:53,251 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 16:18:53,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:53,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336247005] [2021-10-06 16:18:53,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336247005] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:53,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:53,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-06 16:18:53,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14543293] [2021-10-06 16:18:53,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 16:18:53,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:53,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 16:18:53,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 16:18:53,281 INFO L87 Difference]: Start difference. First operand has 444 states, 324 states have (on average 3.3333333333333335) internal successors, (1080), 443 states have internal predecessors, (1080), 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 16:18:53,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:53,375 INFO L93 Difference]: Finished difference Result 550 states and 1402 transitions. [2021-10-06 16:18:53,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 16:18:53,377 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 16:18:53,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:53,398 INFO L225 Difference]: With dead ends: 550 [2021-10-06 16:18:53,398 INFO L226 Difference]: Without dead ends: 550 [2021-10-06 16:18:53,399 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 16:18:53,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2021-10-06 16:18:53,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 444. [2021-10-06 16:18:53,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 335 states have (on average 3.5850746268656715) internal successors, (1201), 443 states have internal predecessors, (1201), 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 16:18:53,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1201 transitions. [2021-10-06 16:18:53,487 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1201 transitions. Word has length 3 [2021-10-06 16:18:53,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:53,488 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 1201 transitions. [2021-10-06 16:18:53,488 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 16:18:53,489 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1201 transitions. [2021-10-06 16:18:53,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 16:18:53,489 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:53,489 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 16:18:53,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-06 16:18:53,490 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2021-10-06 16:18:53,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:53,491 INFO L82 PathProgramCache]: Analyzing trace with hash 515949, now seen corresponding path program 1 times [2021-10-06 16:18:53,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:53,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196592482] [2021-10-06 16:18:53,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:53,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 16:18:53,512 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-06 16:18:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 16:18:53,575 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-06 16:18:53,576 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-06 16:18:53,578 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 16:18:53,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 16:18:53,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,597 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,597 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,597 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,598 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,598 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,598 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,599 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,599 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:53,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-06 16:18:53,608 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 16:18:53,608 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 16:18:53,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 04:18:53 BasicIcfg [2021-10-06 16:18:53,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 16:18:53,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-06 16:18:53,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-06 16:18:53,628 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-06 16:18:53,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:18:47" (3/4) ... [2021-10-06 16:18:53,630 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-06 16:18:53,666 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/parallel/misc-2-unrolled.wvr.c-witness.graphml [2021-10-06 16:18:53,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-06 16:18:53,668 INFO L168 Benchmark]: Toolchain (without parser) took 6947.36 ms. Allocated memory was 162.5 MB in the beginning and 200.3 MB in the end (delta: 37.7 MB). Free memory was 137.1 MB in the beginning and 82.1 MB in the end (delta: 55.0 MB). Peak memory consumption was 93.8 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:53,669 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 162.5 MB. Free memory is still 132.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 16:18:53,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.16 ms. Allocated memory is still 162.5 MB. Free memory was 136.8 MB in the beginning and 126.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:53,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.62 ms. Allocated memory is still 162.5 MB. Free memory was 126.2 MB in the beginning and 124.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:53,671 INFO L168 Benchmark]: Boogie Preprocessor took 64.22 ms. Allocated memory is still 162.5 MB. Free memory was 124.6 MB in the beginning and 123.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:53,672 INFO L168 Benchmark]: RCFGBuilder took 640.16 ms. Allocated memory is still 162.5 MB. Free memory was 123.4 MB in the beginning and 107.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:53,673 INFO L168 Benchmark]: TraceAbstraction took 5845.16 ms. Allocated memory was 162.5 MB in the beginning and 200.3 MB in the end (delta: 37.7 MB). Free memory was 144.4 MB in the beginning and 84.2 MB in the end (delta: 60.3 MB). Peak memory consumption was 97.5 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:53,673 INFO L168 Benchmark]: Witness Printer took 38.52 ms. Allocated memory is still 200.3 MB. Free memory was 83.6 MB in the beginning and 82.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:53,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 162.5 MB. Free memory is still 132.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 260.16 ms. Allocated memory is still 162.5 MB. Free memory was 136.8 MB in the beginning and 126.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 68.62 ms. Allocated memory is still 162.5 MB. Free memory was 126.2 MB in the beginning and 124.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 64.22 ms. Allocated memory is still 162.5 MB. Free memory was 124.6 MB in the beginning and 123.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 640.16 ms. Allocated memory is still 162.5 MB. Free memory was 123.4 MB in the beginning and 107.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5845.16 ms. Allocated memory was 162.5 MB in the beginning and 200.3 MB in the end (delta: 37.7 MB). Free memory was 144.4 MB in the beginning and 84.2 MB in the end (delta: 60.3 MB). Peak memory consumption was 97.5 MB. Max. memory is 8.0 GB. * Witness Printer took 38.52 ms. Allocated memory is still 200.3 MB. Free memory was 83.6 MB in the beginning and 82.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4921.8ms, 127 PlacesBefore, 44 PlacesAfterwards, 126 TransitionsBefore, 39 TransitionsAfterwards, 2832 CoEnabledTransitionPairs, 6 FixpointIterations, 46 TrivialSequentialCompositions, 68 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 133 TotalNumberOfCompositions, 5886 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3730, positive: 3585, positive conditional: 0, positive unconditional: 3585, negative: 145, negative conditional: 0, negative unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1911, positive: 1873, positive conditional: 0, positive unconditional: 1873, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1911, positive: 1853, positive conditional: 0, positive unconditional: 1853, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 121, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 88, negative conditional: 0, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3730, positive: 1712, positive conditional: 0, positive unconditional: 1712, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 1911, unknown conditional: 0, unknown unconditional: 1911] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 131, Positive conditional cache size: 0, Positive unconditional cache size: 131, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - 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: 40]: integer overflow possible integer overflow possible We found a FailurePath: [L37] 0 int pos, i1, i2, N; [L66] 0 pthread_t t1, t2; [L69] 0 pos = __VERIFIER_nondet_int() [L70] 0 i1 = __VERIFIER_nondet_int() [L71] 0 i2 = __VERIFIER_nondet_int() [L72] 0 N = __VERIFIER_nondet_int() [L34] COND FALSE 0 !(!cond) [L77] FCALL, FORK 0 pthread_create(&t1, NULL, thread1, NULL) VAL [i1=0, i2=0, N=1073741824, pos=0] [L40] 1 2 * N VAL [i1=0, i2=0, N=1073741824, pos=0] - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: 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: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 48]: 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: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: 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: 58]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: 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: 78]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 183 locations, 42 error locations. Started 1 CEGAR loops. OverallTime: 5598.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.1ms, AutomataDifference: 137.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5004.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 20 SDtfs, 17 SDslu, 10 SDs, 0 SdLazy, 36 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=444occurred 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: 72.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 106 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.5ms SsaConstructionTime, 59.6ms SatisfiabilityAnalysisTime, 72.9ms 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 16:18:53,733 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...