/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-bakery-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 15:48:36,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 15:48:36,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 15:48:36,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-08 15:48:36,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-08 15:48:36,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-08 15:48:36,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-08 15:48:36,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-08 15:48:36,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-08 15:48:36,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-08 15:48:36,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-08 15:48:36,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-08 15:48:36,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-08 15:48:36,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-08 15:48:36,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-08 15:48:36,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-08 15:48:36,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-08 15:48:36,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-08 15:48:36,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-08 15:48:36,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-08 15:48:36,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-08 15:48:36,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-08 15:48:36,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-08 15:48:36,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-08 15:48:36,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-08 15:48:36,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-08 15:48:36,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-08 15:48:36,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-08 15:48:36,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-08 15:48:36,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-08 15:48:36,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-08 15:48:36,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-08 15:48:36,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-08 15:48:36,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-08 15:48:36,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-08 15:48:36,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-08 15:48:36,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-08 15:48:36,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-08 15:48:36,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-08 15:48:36,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-08 15:48:36,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-08 15:48:36,337 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-08 15:48:36,402 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 15:48:36,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 15:48:36,403 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 15:48:36,403 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 15:48:36,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 15:48:36,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 15:48:36,407 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 15:48:36,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 15:48:36,407 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 15:48:36,408 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 15:48:36,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 15:48:36,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 15:48:36,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 15:48:36,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-08 15:48:36,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 15:48:36,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-08 15:48:36,410 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-08 15:48:36,410 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 15:48:36,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-08 15:48:36,411 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 15:48:36,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-08 15:48:36,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 15:48:36,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 15:48:36,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 15:48:36,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:48:36,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 15:48:36,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 15:48:36,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-08 15:48:36,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-08 15:48:36,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-08 15:48:36,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-08 15:48:36,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 15:48:36,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 15:48:36,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 15:48:36,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 15:48:36,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 15:48:36,874 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 15:48:36,874 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 15:48:36,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2021-10-08 15:48:36,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68191d884/8173bb630ab74ee1b2f80ce5fe7f475d/FLAGeecaa48b0 [2021-10-08 15:48:37,654 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 15:48:37,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2021-10-08 15:48:37,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68191d884/8173bb630ab74ee1b2f80ce5fe7f475d/FLAGeecaa48b0 [2021-10-08 15:48:37,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68191d884/8173bb630ab74ee1b2f80ce5fe7f475d [2021-10-08 15:48:37,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 15:48:37,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-08 15:48:38,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 15:48:38,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 15:48:38,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 15:48:38,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 03:48:37" (1/1) ... [2021-10-08 15:48:38,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c6cd660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38, skipping insertion in model container [2021-10-08 15:48:38,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 03:48:37" (1/1) ... [2021-10-08 15:48:38,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 15:48:38,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 15:48:38,235 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-bakery-2.wvr.c[2495,2508] [2021-10-08 15:48:38,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 15:48:38,247 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 15:48:38,276 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-bakery-2.wvr.c[2495,2508] [2021-10-08 15:48:38,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 15:48:38,305 INFO L208 MainTranslator]: Completed translation [2021-10-08 15:48:38,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38 WrapperNode [2021-10-08 15:48:38,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 15:48:38,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 15:48:38,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 15:48:38,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 15:48:38,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38" (1/1) ... [2021-10-08 15:48:38,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38" (1/1) ... [2021-10-08 15:48:38,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 15:48:38,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 15:48:38,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 15:48:38,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 15:48:38,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38" (1/1) ... [2021-10-08 15:48:38,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38" (1/1) ... [2021-10-08 15:48:38,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38" (1/1) ... [2021-10-08 15:48:38,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38" (1/1) ... [2021-10-08 15:48:38,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38" (1/1) ... [2021-10-08 15:48:38,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38" (1/1) ... [2021-10-08 15:48:38,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38" (1/1) ... [2021-10-08 15:48:38,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 15:48:38,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 15:48:38,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 15:48:38,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 15:48:38,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38" (1/1) ... [2021-10-08 15:48:38,399 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:48:38,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:38,433 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) [2021-10-08 15:48:38,458 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 [2021-10-08 15:48:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 15:48:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 15:48:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 15:48:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 15:48:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-08 15:48:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 15:48:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-08 15:48:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 15:48:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 15:48:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-08 15:48:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 15:48:38,536 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 15:48:39,061 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 15:48:39,062 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-08 15:48:39,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:48:39 BoogieIcfgContainer [2021-10-08 15:48:39,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 15:48:39,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 15:48:39,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 15:48:39,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 15:48:39,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 03:48:37" (1/3) ... [2021-10-08 15:48:39,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d29f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 03:48:39, skipping insertion in model container [2021-10-08 15:48:39,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38" (2/3) ... [2021-10-08 15:48:39,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d29f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 03:48:39, skipping insertion in model container [2021-10-08 15:48:39,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:48:39" (3/3) ... [2021-10-08 15:48:39,074 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2021-10-08 15:48:39,081 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-08 15:48:39,081 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 15:48:39,081 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-08 15:48:39,082 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 15:48:39,119 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,119 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,121 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,121 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,121 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,121 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,122 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,122 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,122 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,123 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,123 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,123 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,123 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,124 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,124 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,124 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,124 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,125 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,125 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,125 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,125 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,126 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,126 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,126 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,126 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,126 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,127 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,127 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,127 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,127 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,128 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,128 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,128 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,128 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,129 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,129 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,129 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,129 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,130 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,130 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,130 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,130 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,131 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,131 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,134 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,134 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,136 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,136 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,136 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,137 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,137 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,137 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,138 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,138 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,138 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,138 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,138 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,139 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,139 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,139 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,139 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,140 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,140 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,140 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,140 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,141 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,141 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,141 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,141 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,142 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,142 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,142 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,142 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,143 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,143 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,143 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,143 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,144 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,144 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,144 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,144 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,145 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,145 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,145 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,145 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,146 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,146 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,146 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,146 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,147 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,147 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,147 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,148 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,148 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,149 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,151 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,155 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,164 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,165 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,165 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,166 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,166 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,166 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,182 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-08 15:48:39,260 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 15:48:39,273 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 [2021-10-08 15:48:39,273 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-10-08 15:48:39,312 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 15:48:39,335 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 149 transitions, 314 flow [2021-10-08 15:48:39,339 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 149 transitions, 314 flow [2021-10-08 15:48:39,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 148 places, 149 transitions, 314 flow [2021-10-08 15:48:39,479 INFO L129 PetriNetUnfolder]: 8/147 cut-off events. [2021-10-08 15:48:39,480 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-08 15:48:39,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 147 events. 8/147 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2021-10-08 15:48:39,497 INFO L116 LiptonReduction]: Number of co-enabled transitions 3672 [2021-10-08 15:48:44,669 INFO L131 LiptonReduction]: Checked pairs total: 10344 [2021-10-08 15:48:44,670 INFO L133 LiptonReduction]: Total number of compositions: 139 [2021-10-08 15:48:44,679 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 45 transitions, 106 flow [2021-10-08 15:48:44,732 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 566 states, 542 states have (on average 2.6752767527675276) internal successors, (1450), 565 states have internal predecessors, (1450), 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) [2021-10-08 15:48:44,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 566 states, 542 states have (on average 2.6752767527675276) internal successors, (1450), 565 states have internal predecessors, (1450), 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) [2021-10-08 15:48:44,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-08 15:48:44,745 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:44,746 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-08 15:48:44,746 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:44,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:44,752 INFO L82 PathProgramCache]: Analyzing trace with hash -337550174, now seen corresponding path program 1 times [2021-10-08 15:48:44,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:44,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82611937] [2021-10-08 15:48:44,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:44,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:45,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:45,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:45,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82611937] [2021-10-08 15:48:45,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82611937] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:45,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:45,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:48:45,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689697334] [2021-10-08 15:48:45,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:45,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:45,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:45,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:45,150 INFO L87 Difference]: Start difference. First operand has 566 states, 542 states have (on average 2.6752767527675276) internal successors, (1450), 565 states have internal predecessors, (1450), 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 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-10-08 15:48:45,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:45,287 INFO L93 Difference]: Finished difference Result 634 states and 1584 transitions. [2021-10-08 15:48:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 15:48:45,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2021-10-08 15:48:45,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:45,316 INFO L225 Difference]: With dead ends: 634 [2021-10-08 15:48:45,317 INFO L226 Difference]: Without dead ends: 634 [2021-10-08 15:48:45,318 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.6ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:45,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2021-10-08 15:48:45,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2021-10-08 15:48:45,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 610 states have (on average 2.59672131147541) internal successors, (1584), 633 states have internal predecessors, (1584), 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) [2021-10-08 15:48:45,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1584 transitions. [2021-10-08 15:48:45,427 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1584 transitions. Word has length 6 [2021-10-08 15:48:45,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:45,427 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1584 transitions. [2021-10-08 15:48:45,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-10-08 15:48:45,428 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1584 transitions. [2021-10-08 15:48:45,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-08 15:48:45,429 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:45,429 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-08 15:48:45,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-08 15:48:45,430 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:45,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:45,431 INFO L82 PathProgramCache]: Analyzing trace with hash -337550173, now seen corresponding path program 1 times [2021-10-08 15:48:45,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:45,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028235880] [2021-10-08 15:48:45,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:45,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:45,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:45,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:45,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028235880] [2021-10-08 15:48:45,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028235880] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:45,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:45,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:48:45,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471097075] [2021-10-08 15:48:45,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:45,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:45,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:45,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:45,541 INFO L87 Difference]: Start difference. First operand 634 states and 1584 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-10-08 15:48:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:45,636 INFO L93 Difference]: Finished difference Result 634 states and 1550 transitions. [2021-10-08 15:48:45,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 15:48:45,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2021-10-08 15:48:45,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:45,645 INFO L225 Difference]: With dead ends: 634 [2021-10-08 15:48:45,646 INFO L226 Difference]: Without dead ends: 634 [2021-10-08 15:48:45,647 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.7ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:45,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2021-10-08 15:48:45,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2021-10-08 15:48:45,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 610 states have (on average 2.540983606557377) internal successors, (1550), 633 states have internal predecessors, (1550), 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) [2021-10-08 15:48:45,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1550 transitions. [2021-10-08 15:48:45,695 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1550 transitions. Word has length 6 [2021-10-08 15:48:45,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:45,695 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1550 transitions. [2021-10-08 15:48:45,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-10-08 15:48:45,696 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1550 transitions. [2021-10-08 15:48:45,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 15:48:45,698 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:45,698 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:45,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-08 15:48:45,699 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:45,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:45,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1878058973, now seen corresponding path program 1 times [2021-10-08 15:48:45,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:45,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925152848] [2021-10-08 15:48:45,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:45,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:45,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:45,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925152848] [2021-10-08 15:48:45,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925152848] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:45,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:45,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:48:45,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929727974] [2021-10-08 15:48:45,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:48:45,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:45,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:48:45,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:48:45,813 INFO L87 Difference]: Start difference. First operand 634 states and 1550 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-10-08 15:48:45,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:45,983 INFO L93 Difference]: Finished difference Result 736 states and 1828 transitions. [2021-10-08 15:48:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 15:48:45,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2021-10-08 15:48:45,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:45,991 INFO L225 Difference]: With dead ends: 736 [2021-10-08 15:48:45,991 INFO L226 Difference]: Without dead ends: 736 [2021-10-08 15:48:45,992 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 55.1ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-08 15:48:45,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2021-10-08 15:48:46,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 710. [2021-10-08 15:48:46,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 686 states have (on average 2.6122448979591835) internal successors, (1792), 709 states have internal predecessors, (1792), 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) [2021-10-08 15:48:46,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1792 transitions. [2021-10-08 15:48:46,025 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1792 transitions. Word has length 7 [2021-10-08 15:48:46,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:46,026 INFO L470 AbstractCegarLoop]: Abstraction has 710 states and 1792 transitions. [2021-10-08 15:48:46,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-10-08 15:48:46,026 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1792 transitions. [2021-10-08 15:48:46,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 15:48:46,027 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:46,027 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:46,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-08 15:48:46,028 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:46,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:46,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1878058972, now seen corresponding path program 1 times [2021-10-08 15:48:46,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:46,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861883790] [2021-10-08 15:48:46,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:46,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:46,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:46,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:46,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861883790] [2021-10-08 15:48:46,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861883790] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:46,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:46,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:48:46,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317127144] [2021-10-08 15:48:46,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:46,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:46,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:46,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:46,115 INFO L87 Difference]: Start difference. First operand 710 states and 1792 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-10-08 15:48:46,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:46,221 INFO L93 Difference]: Finished difference Result 926 states and 2286 transitions. [2021-10-08 15:48:46,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 15:48:46,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2021-10-08 15:48:46,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:46,233 INFO L225 Difference]: With dead ends: 926 [2021-10-08 15:48:46,234 INFO L226 Difference]: Without dead ends: 926 [2021-10-08 15:48:46,234 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:46,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2021-10-08 15:48:46,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 698. [2021-10-08 15:48:46,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 674 states have (on average 2.578635014836795) internal successors, (1738), 697 states have internal predecessors, (1738), 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) [2021-10-08 15:48:46,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1738 transitions. [2021-10-08 15:48:46,267 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1738 transitions. Word has length 7 [2021-10-08 15:48:46,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:46,267 INFO L470 AbstractCegarLoop]: Abstraction has 698 states and 1738 transitions. [2021-10-08 15:48:46,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-10-08 15:48:46,268 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1738 transitions. [2021-10-08 15:48:46,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-08 15:48:46,271 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:46,272 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:46,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-08 15:48:46,272 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:46,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:46,275 INFO L82 PathProgramCache]: Analyzing trace with hash -33941076, now seen corresponding path program 1 times [2021-10-08 15:48:46,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:46,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036394274] [2021-10-08 15:48:46,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:46,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:46,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:46,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:46,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036394274] [2021-10-08 15:48:46,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036394274] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:46,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:46,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:48:46,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135536579] [2021-10-08 15:48:46,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:46,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:46,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:46,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:46,375 INFO L87 Difference]: Start difference. First operand 698 states and 1738 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-08 15:48:46,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:46,459 INFO L93 Difference]: Finished difference Result 720 states and 1811 transitions. [2021-10-08 15:48:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 15:48:46,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-10-08 15:48:46,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:46,465 INFO L225 Difference]: With dead ends: 720 [2021-10-08 15:48:46,466 INFO L226 Difference]: Without dead ends: 720 [2021-10-08 15:48:46,466 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:46,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2021-10-08 15:48:46,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 698. [2021-10-08 15:48:46,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 676 states have (on average 2.5724852071005917) internal successors, (1739), 697 states have internal predecessors, (1739), 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) [2021-10-08 15:48:46,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1739 transitions. [2021-10-08 15:48:46,515 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1739 transitions. Word has length 9 [2021-10-08 15:48:46,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:46,516 INFO L470 AbstractCegarLoop]: Abstraction has 698 states and 1739 transitions. [2021-10-08 15:48:46,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-08 15:48:46,516 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1739 transitions. [2021-10-08 15:48:46,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-08 15:48:46,517 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:46,518 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:46,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-08 15:48:46,518 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:46,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:46,519 INFO L82 PathProgramCache]: Analyzing trace with hash -33941120, now seen corresponding path program 1 times [2021-10-08 15:48:46,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:46,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849272419] [2021-10-08 15:48:46,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:46,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:46,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:46,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:46,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849272419] [2021-10-08 15:48:46,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849272419] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:46,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:46,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:48:46,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794675585] [2021-10-08 15:48:46,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:46,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:46,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:46,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:46,564 INFO L87 Difference]: Start difference. First operand 698 states and 1739 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-08 15:48:46,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:46,645 INFO L93 Difference]: Finished difference Result 864 states and 2097 transitions. [2021-10-08 15:48:46,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 15:48:46,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-10-08 15:48:46,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:46,652 INFO L225 Difference]: With dead ends: 864 [2021-10-08 15:48:46,653 INFO L226 Difference]: Without dead ends: 864 [2021-10-08 15:48:46,653 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2021-10-08 15:48:46,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 654. [2021-10-08 15:48:46,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 634 states have (on average 2.529968454258675) internal successors, (1604), 653 states have internal predecessors, (1604), 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) [2021-10-08 15:48:46,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1604 transitions. [2021-10-08 15:48:46,680 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1604 transitions. Word has length 9 [2021-10-08 15:48:46,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:46,681 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 1604 transitions. [2021-10-08 15:48:46,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-08 15:48:46,681 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1604 transitions. [2021-10-08 15:48:46,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:48:46,683 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:46,683 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:46,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-08 15:48:46,683 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:46,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:46,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1784802650, now seen corresponding path program 1 times [2021-10-08 15:48:46,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:46,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962925722] [2021-10-08 15:48:46,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:46,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:46,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:46,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:46,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962925722] [2021-10-08 15:48:46,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962925722] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:46,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:46,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:48:46,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816664289] [2021-10-08 15:48:46,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:46,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:46,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:46,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:48:46,724 INFO L87 Difference]: Start difference. First operand 654 states and 1604 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-10-08 15:48:46,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:46,752 INFO L93 Difference]: Finished difference Result 590 states and 1436 transitions. [2021-10-08 15:48:46,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:48:46,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-10-08 15:48:46,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:46,757 INFO L225 Difference]: With dead ends: 590 [2021-10-08 15:48:46,757 INFO L226 Difference]: Without dead ends: 586 [2021-10-08 15:48:46,758 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:46,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2021-10-08 15:48:46,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2021-10-08 15:48:46,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 574 states have (on average 2.491289198606272) internal successors, (1430), 585 states have internal predecessors, (1430), 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) [2021-10-08 15:48:46,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 1430 transitions. [2021-10-08 15:48:46,779 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 1430 transitions. Word has length 11 [2021-10-08 15:48:46,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:46,779 INFO L470 AbstractCegarLoop]: Abstraction has 586 states and 1430 transitions. [2021-10-08 15:48:46,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-10-08 15:48:46,780 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 1430 transitions. [2021-10-08 15:48:46,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:48:46,781 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:46,781 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:46,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-08 15:48:46,782 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:46,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:46,783 INFO L82 PathProgramCache]: Analyzing trace with hash -433614297, now seen corresponding path program 1 times [2021-10-08 15:48:46,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:46,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258624781] [2021-10-08 15:48:46,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:46,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:46,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:46,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:46,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258624781] [2021-10-08 15:48:46,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258624781] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:46,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:46,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:48:46,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106690869] [2021-10-08 15:48:46,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:48:46,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:48:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:46,839 INFO L87 Difference]: Start difference. First operand 586 states and 1430 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-10-08 15:48:46,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:46,980 INFO L93 Difference]: Finished difference Result 992 states and 2398 transitions. [2021-10-08 15:48:46,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 15:48:46,980 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2021-10-08 15:48:46,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:46,988 INFO L225 Difference]: With dead ends: 992 [2021-10-08 15:48:46,988 INFO L226 Difference]: Without dead ends: 992 [2021-10-08 15:48:46,989 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 53.5ms TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-10-08 15:48:46,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2021-10-08 15:48:47,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 634. [2021-10-08 15:48:47,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 622 states have (on average 2.517684887459807) internal successors, (1566), 633 states have internal predecessors, (1566), 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) [2021-10-08 15:48:47,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1566 transitions. [2021-10-08 15:48:47,016 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1566 transitions. Word has length 12 [2021-10-08 15:48:47,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:47,017 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1566 transitions. [2021-10-08 15:48:47,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-10-08 15:48:47,017 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1566 transitions. [2021-10-08 15:48:47,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:48:47,019 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:47,019 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:47,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-08 15:48:47,019 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:47,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:47,020 INFO L82 PathProgramCache]: Analyzing trace with hash -536338328, now seen corresponding path program 1 times [2021-10-08 15:48:47,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:47,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308635897] [2021-10-08 15:48:47,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:47,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:47,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:47,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308635897] [2021-10-08 15:48:47,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308635897] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:47,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:47,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:48:47,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069061369] [2021-10-08 15:48:47,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:48:47,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:47,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:48:47,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:47,077 INFO L87 Difference]: Start difference. First operand 634 states and 1566 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-10-08 15:48:47,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:47,234 INFO L93 Difference]: Finished difference Result 596 states and 1476 transitions. [2021-10-08 15:48:47,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 15:48:47,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2021-10-08 15:48:47,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:47,240 INFO L225 Difference]: With dead ends: 596 [2021-10-08 15:48:47,240 INFO L226 Difference]: Without dead ends: 596 [2021-10-08 15:48:47,240 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 72.5ms TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2021-10-08 15:48:47,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-10-08 15:48:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 554. [2021-10-08 15:48:47,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 546 states have (on average 2.4816849816849818) internal successors, (1355), 553 states have internal predecessors, (1355), 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) [2021-10-08 15:48:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1355 transitions. [2021-10-08 15:48:47,262 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1355 transitions. Word has length 12 [2021-10-08 15:48:47,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:47,262 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 1355 transitions. [2021-10-08 15:48:47,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-10-08 15:48:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1355 transitions. [2021-10-08 15:48:47,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:48:47,264 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:47,264 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:47,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-08 15:48:47,264 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:47,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:47,265 INFO L82 PathProgramCache]: Analyzing trace with hash -536338372, now seen corresponding path program 1 times [2021-10-08 15:48:47,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:47,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191033384] [2021-10-08 15:48:47,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:47,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:47,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:47,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:47,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191033384] [2021-10-08 15:48:47,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191033384] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:47,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:47,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:48:47,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470219695] [2021-10-08 15:48:47,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:48:47,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:47,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:48:47,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:47,315 INFO L87 Difference]: Start difference. First operand 554 states and 1355 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-10-08 15:48:47,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:47,512 INFO L93 Difference]: Finished difference Result 936 states and 2243 transitions. [2021-10-08 15:48:47,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 15:48:47,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2021-10-08 15:48:47,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:47,520 INFO L225 Difference]: With dead ends: 936 [2021-10-08 15:48:47,520 INFO L226 Difference]: Without dead ends: 936 [2021-10-08 15:48:47,521 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 74.5ms TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-10-08 15:48:47,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2021-10-08 15:48:47,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 542. [2021-10-08 15:48:47,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 534 states have (on average 2.4812734082397006) internal successors, (1325), 541 states have internal predecessors, (1325), 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) [2021-10-08 15:48:47,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 1325 transitions. [2021-10-08 15:48:47,550 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 1325 transitions. Word has length 12 [2021-10-08 15:48:47,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:47,550 INFO L470 AbstractCegarLoop]: Abstraction has 542 states and 1325 transitions. [2021-10-08 15:48:47,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-10-08 15:48:47,551 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 1325 transitions. [2021-10-08 15:48:47,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:48:47,552 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:47,552 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:47,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-08 15:48:47,552 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:47,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:47,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1572080458, now seen corresponding path program 1 times [2021-10-08 15:48:47,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:47,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879996415] [2021-10-08 15:48:47,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:47,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:47,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:47,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:47,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879996415] [2021-10-08 15:48:47,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879996415] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:47,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:47,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:48:47,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100999503] [2021-10-08 15:48:47,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:47,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:47,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:47,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:48:47,625 INFO L87 Difference]: Start difference. First operand 542 states and 1325 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-10-08 15:48:47,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:47,650 INFO L93 Difference]: Finished difference Result 484 states and 1163 transitions. [2021-10-08 15:48:47,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:48:47,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2021-10-08 15:48:47,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:47,654 INFO L225 Difference]: With dead ends: 484 [2021-10-08 15:48:47,654 INFO L226 Difference]: Without dead ends: 476 [2021-10-08 15:48:47,655 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:47,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-10-08 15:48:47,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2021-10-08 15:48:47,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 470 states have (on average 2.4468085106382977) internal successors, (1150), 475 states have internal predecessors, (1150), 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) [2021-10-08 15:48:47,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 1150 transitions. [2021-10-08 15:48:47,673 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 1150 transitions. Word has length 12 [2021-10-08 15:48:47,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:47,673 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 1150 transitions. [2021-10-08 15:48:47,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-10-08 15:48:47,674 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 1150 transitions. [2021-10-08 15:48:47,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 15:48:47,675 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:47,675 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:47,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-08 15:48:47,676 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:47,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:47,676 INFO L82 PathProgramCache]: Analyzing trace with hash 454916683, now seen corresponding path program 1 times [2021-10-08 15:48:47,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:47,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445499238] [2021-10-08 15:48:47,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:47,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:47,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:47,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445499238] [2021-10-08 15:48:47,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445499238] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:47,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:47,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:48:47,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938262256] [2021-10-08 15:48:47,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 15:48:47,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:47,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 15:48:47,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:47,729 INFO L87 Difference]: Start difference. First operand 476 states and 1150 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-10-08 15:48:47,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:47,948 INFO L93 Difference]: Finished difference Result 902 states and 2148 transitions. [2021-10-08 15:48:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:48:47,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2021-10-08 15:48:47,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:47,964 INFO L225 Difference]: With dead ends: 902 [2021-10-08 15:48:47,964 INFO L226 Difference]: Without dead ends: 902 [2021-10-08 15:48:47,965 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 75.9ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-10-08 15:48:47,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2021-10-08 15:48:47,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 540. [2021-10-08 15:48:47,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 534 states have (on average 2.4681647940074907) internal successors, (1318), 539 states have internal predecessors, (1318), 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) [2021-10-08 15:48:48,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 1318 transitions. [2021-10-08 15:48:48,001 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 1318 transitions. Word has length 13 [2021-10-08 15:48:48,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:48,001 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 1318 transitions. [2021-10-08 15:48:48,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-10-08 15:48:48,002 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 1318 transitions. [2021-10-08 15:48:48,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 15:48:48,003 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:48,003 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:48,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-08 15:48:48,004 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:48,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:48,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1524104278, now seen corresponding path program 1 times [2021-10-08 15:48:48,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:48,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652684483] [2021-10-08 15:48:48,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:48,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:48,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:48,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:48,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652684483] [2021-10-08 15:48:48,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652684483] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:48,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:48,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 15:48:48,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409351853] [2021-10-08 15:48:48,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 15:48:48,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:48,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 15:48:48,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:48:48,094 INFO L87 Difference]: Start difference. First operand 540 states and 1318 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2021-10-08 15:48:48,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:48,240 INFO L93 Difference]: Finished difference Result 544 states and 1230 transitions. [2021-10-08 15:48:48,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 15:48:48,241 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 14 [2021-10-08 15:48:48,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:48,245 INFO L225 Difference]: With dead ends: 544 [2021-10-08 15:48:48,246 INFO L226 Difference]: Without dead ends: 544 [2021-10-08 15:48:48,246 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 57.3ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-10-08 15:48:48,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2021-10-08 15:48:48,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 316. [2021-10-08 15:48:48,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 312 states have (on average 2.326923076923077) internal successors, (726), 315 states have internal predecessors, (726), 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) [2021-10-08 15:48:48,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 726 transitions. [2021-10-08 15:48:48,261 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 726 transitions. Word has length 14 [2021-10-08 15:48:48,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:48,261 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 726 transitions. [2021-10-08 15:48:48,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2021-10-08 15:48:48,262 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 726 transitions. [2021-10-08 15:48:48,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 15:48:48,263 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:48,263 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:48,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-08 15:48:48,264 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:48,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:48,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1394519042, now seen corresponding path program 1 times [2021-10-08 15:48:48,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:48,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853991841] [2021-10-08 15:48:48,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:48,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:48,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:48,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:48,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853991841] [2021-10-08 15:48:48,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853991841] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:48,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:48,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:48:48,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208946624] [2021-10-08 15:48:48,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:48,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:48,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:48,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:48,305 INFO L87 Difference]: Start difference. First operand 316 states and 726 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2021-10-08 15:48:48,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:48,371 INFO L93 Difference]: Finished difference Result 536 states and 1226 transitions. [2021-10-08 15:48:48,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 15:48:48,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2021-10-08 15:48:48,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:48,375 INFO L225 Difference]: With dead ends: 536 [2021-10-08 15:48:48,376 INFO L226 Difference]: Without dead ends: 536 [2021-10-08 15:48:48,376 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.9ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:48:48,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2021-10-08 15:48:48,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 316. [2021-10-08 15:48:48,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 312 states have (on average 2.2884615384615383) internal successors, (714), 315 states have internal predecessors, (714), 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) [2021-10-08 15:48:48,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 714 transitions. [2021-10-08 15:48:48,390 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 714 transitions. Word has length 21 [2021-10-08 15:48:48,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:48,390 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 714 transitions. [2021-10-08 15:48:48,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2021-10-08 15:48:48,391 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 714 transitions. [2021-10-08 15:48:48,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 15:48:48,392 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:48,392 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:48,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-08 15:48:48,393 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:48,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:48,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1676315542, now seen corresponding path program 1 times [2021-10-08 15:48:48,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:48,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452751387] [2021-10-08 15:48:48,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:48,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:48,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:48,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:48,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452751387] [2021-10-08 15:48:48,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452751387] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:48,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:48,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:48:48,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102942839] [2021-10-08 15:48:48,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:48:48,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:48,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:48:48,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:48:48,444 INFO L87 Difference]: Start difference. First operand 316 states and 714 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2021-10-08 15:48:48,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:48,485 INFO L93 Difference]: Finished difference Result 312 states and 706 transitions. [2021-10-08 15:48:48,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 15:48:48,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2021-10-08 15:48:48,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:48,488 INFO L225 Difference]: With dead ends: 312 [2021-10-08 15:48:48,488 INFO L226 Difference]: Without dead ends: 312 [2021-10-08 15:48:48,488 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 26.7ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:48:48,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-10-08 15:48:48,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2021-10-08 15:48:48,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 309 states have (on average 2.284789644012945) internal successors, (706), 311 states have internal predecessors, (706), 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) [2021-10-08 15:48:48,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 706 transitions. [2021-10-08 15:48:48,499 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 706 transitions. Word has length 21 [2021-10-08 15:48:48,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:48,499 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 706 transitions. [2021-10-08 15:48:48,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2021-10-08 15:48:48,500 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 706 transitions. [2021-10-08 15:48:48,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 15:48:48,501 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:48,501 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:48,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-08 15:48:48,502 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:48,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:48,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1676315597, now seen corresponding path program 1 times [2021-10-08 15:48:48,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:48,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796081259] [2021-10-08 15:48:48,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:48,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:48,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:48,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:48,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796081259] [2021-10-08 15:48:48,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796081259] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:48,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:48,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:48:48,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22325890] [2021-10-08 15:48:48,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:48,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:48,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:48,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:48:48,535 INFO L87 Difference]: Start difference. First operand 312 states and 706 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-10-08 15:48:48,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:48,572 INFO L93 Difference]: Finished difference Result 308 states and 698 transitions. [2021-10-08 15:48:48,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:48:48,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2021-10-08 15:48:48,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:48,575 INFO L225 Difference]: With dead ends: 308 [2021-10-08 15:48:48,575 INFO L226 Difference]: Without dead ends: 250 [2021-10-08 15:48:48,576 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:48,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-08 15:48:48,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2021-10-08 15:48:48,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 248 states have (on average 2.2379032258064515) internal successors, (555), 249 states have internal predecessors, (555), 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) [2021-10-08 15:48:48,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 555 transitions. [2021-10-08 15:48:48,586 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 555 transitions. Word has length 21 [2021-10-08 15:48:48,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:48,586 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 555 transitions. [2021-10-08 15:48:48,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-10-08 15:48:48,587 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 555 transitions. [2021-10-08 15:48:48,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 15:48:48,588 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:48,588 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:48,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-08 15:48:48,589 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:48,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:48,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1884992450, now seen corresponding path program 2 times [2021-10-08 15:48:48,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:48,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132786400] [2021-10-08 15:48:48,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:48,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:48,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:48,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132786400] [2021-10-08 15:48:48,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132786400] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:48,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:48,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:48:48,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048878886] [2021-10-08 15:48:48,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:48:48,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:48,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:48:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:48:48,674 INFO L87 Difference]: Start difference. First operand 250 states and 555 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2021-10-08 15:48:48,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:48,709 INFO L93 Difference]: Finished difference Result 244 states and 543 transitions. [2021-10-08 15:48:48,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 15:48:48,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2021-10-08 15:48:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:48,712 INFO L225 Difference]: With dead ends: 244 [2021-10-08 15:48:48,712 INFO L226 Difference]: Without dead ends: 244 [2021-10-08 15:48:48,713 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 24.0ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:48:48,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-10-08 15:48:48,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2021-10-08 15:48:48,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 2.234567901234568) internal successors, (543), 243 states have internal predecessors, (543), 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) [2021-10-08 15:48:48,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 543 transitions. [2021-10-08 15:48:48,722 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 543 transitions. Word has length 21 [2021-10-08 15:48:48,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:48,725 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 543 transitions. [2021-10-08 15:48:48,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2021-10-08 15:48:48,725 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 543 transitions. [2021-10-08 15:48:48,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 15:48:48,726 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:48,727 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:48,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-08 15:48:48,728 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-08 15:48:48,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:48,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1884992485, now seen corresponding path program 1 times [2021-10-08 15:48:48,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:48,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883767692] [2021-10-08 15:48:48,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:48,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:48,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:48,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883767692] [2021-10-08 15:48:48,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883767692] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:48,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:48,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:48:48,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509308702] [2021-10-08 15:48:48,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:48,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:48,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:48,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:48:48,787 INFO L87 Difference]: Start difference. First operand 244 states and 543 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-10-08 15:48:48,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:48,799 INFO L93 Difference]: Finished difference Result 238 states and 531 transitions. [2021-10-08 15:48:48,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:48:48,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2021-10-08 15:48:48,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:48,800 INFO L225 Difference]: With dead ends: 238 [2021-10-08 15:48:48,800 INFO L226 Difference]: Without dead ends: 0 [2021-10-08 15:48:48,800 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:48,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-08 15:48:48,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-08 15:48:48,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-08 15:48:48,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-08 15:48:48,801 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-10-08 15:48:48,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:48,802 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-08 15:48:48,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-10-08 15:48:48,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-08 15:48:48,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-08 15:48:48,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 15:48:48,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 15:48:48,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,809 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,809 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,809 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,809 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,809 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,810 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,810 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:48,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-08 15:48:48,817 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 15:48:48,818 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 15:48:48,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 03:48:48 BasicIcfg [2021-10-08 15:48:48,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 15:48:48,821 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-08 15:48:48,821 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-08 15:48:48,821 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-08 15:48:48,822 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:48:39" (3/4) ... [2021-10-08 15:48:48,825 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-08 15:48:48,831 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-08 15:48:48,831 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-08 15:48:48,837 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-08 15:48:48,837 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-08 15:48:48,838 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 15:48:48,838 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 15:48:48,880 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/parallel-bakery-2.wvr.c-witness.graphml [2021-10-08 15:48:48,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-08 15:48:48,882 INFO L168 Benchmark]: Toolchain (without parser) took 10889.62 ms. Allocated memory was 153.1 MB in the beginning and 222.3 MB in the end (delta: 69.2 MB). Free memory was 128.4 MB in the beginning and 171.1 MB in the end (delta: -42.8 MB). Peak memory consumption was 27.1 MB. Max. memory is 8.0 GB. [2021-10-08 15:48:48,882 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory was 126.2 MB in the beginning and 126.1 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 15:48:48,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.83 ms. Allocated memory is still 153.1 MB. Free memory was 127.9 MB in the beginning and 117.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-08 15:48:48,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.42 ms. Allocated memory is still 153.1 MB. Free memory was 117.4 MB in the beginning and 115.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 15:48:48,884 INFO L168 Benchmark]: Boogie Preprocessor took 29.07 ms. Allocated memory is still 153.1 MB. Free memory was 115.5 MB in the beginning and 114.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-08 15:48:48,884 INFO L168 Benchmark]: RCFGBuilder took 675.67 ms. Allocated memory is still 153.1 MB. Free memory was 114.3 MB in the beginning and 135.5 MB in the end (delta: -21.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 8.0 GB. [2021-10-08 15:48:48,885 INFO L168 Benchmark]: TraceAbstraction took 9753.79 ms. Allocated memory was 153.1 MB in the beginning and 222.3 MB in the end (delta: 69.2 MB). Free memory was 134.9 MB in the beginning and 174.3 MB in the end (delta: -39.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 8.0 GB. [2021-10-08 15:48:48,885 INFO L168 Benchmark]: Witness Printer took 59.11 ms. Allocated memory is still 222.3 MB. Free memory was 174.3 MB in the beginning and 171.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-08 15:48:48,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory was 126.2 MB in the beginning and 126.1 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 304.83 ms. Allocated memory is still 153.1 MB. Free memory was 127.9 MB in the beginning and 117.4 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 51.42 ms. Allocated memory is still 153.1 MB. Free memory was 117.4 MB in the beginning and 115.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.07 ms. Allocated memory is still 153.1 MB. Free memory was 115.5 MB in the beginning and 114.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 675.67 ms. Allocated memory is still 153.1 MB. Free memory was 114.3 MB in the beginning and 135.5 MB in the end (delta: -21.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9753.79 ms. Allocated memory was 153.1 MB in the beginning and 222.3 MB in the end (delta: 69.2 MB). Free memory was 134.9 MB in the beginning and 174.3 MB in the end (delta: -39.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 8.0 GB. * Witness Printer took 59.11 ms. Allocated memory is still 222.3 MB. Free memory was 174.3 MB in the beginning and 171.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5330.7ms, 148 PlacesBefore, 48 PlacesAfterwards, 149 TransitionsBefore, 45 TransitionsAfterwards, 3672 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 139 TotalNumberOfCompositions, 10344 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5702, positive: 5410, positive conditional: 0, positive unconditional: 5410, negative: 292, negative conditional: 0, negative unconditional: 292, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2777, positive: 2702, positive conditional: 0, positive unconditional: 2702, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2777, positive: 2675, positive conditional: 0, positive unconditional: 2675, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 102, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 167, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 135, negative conditional: 0, negative unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5702, positive: 2708, positive conditional: 0, positive unconditional: 2708, negative: 217, negative conditional: 0, negative unconditional: 217, unknown: 2777, unknown conditional: 0, unknown unconditional: 2777] , Statistics on independence cache: Total cache size (in pairs): 402, Positive cache size: 370, Positive conditional cache size: 0, Positive unconditional cache size: 370, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32 - 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 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 212 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 9556.9ms, OverallIterations: 18, TraceHistogramMax: 1, EmptinessCheckTime: 35.5ms, AutomataDifference: 1989.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5458.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 838 SDtfs, 2016 SDslu, 1611 SDs, 0 SdLazy, 930 SolverSat, 329 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 804.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 596.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=710occurred in iteration=3, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 484.9ms AutomataMinimizationTime, 18 MinimizatonAttempts, 2090 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 43.5ms SsaConstructionTime, 343.6ms SatisfiabilityAnalysisTime, 825.7ms InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 649 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-08 15:48:48,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...