/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-deagle/airline-5.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:18:28,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:18:28,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:18:28,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:18:28,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:18:28,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:18:28,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:18:28,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:18:28,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:18:28,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:18:28,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:18:28,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:18:28,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:18:28,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:18:28,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:18:28,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:18:28,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:18:28,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:18:28,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:18:28,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:18:28,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:18:28,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:18:28,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:18:28,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:18:28,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:18:28,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:18:28,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:18:28,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:18:28,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:18:28,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:18:28,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:18:28,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:18:28,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:18:28,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:18:28,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:18:28,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:18:28,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:18:28,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:18:28,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:18:28,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:18:28,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:18:28,123 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 11:18:28,156 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:18:28,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:18:28,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 11:18:28,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 11:18:28,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:18:28,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:18:28,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:18:28,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:18:28,159 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:18:28,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:18:28,160 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:18:28,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:18:28,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:18:28,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:18:28,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:18:28,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:18:28,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:18:28,161 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:18:28,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:18:28,161 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:18:28,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:18:28,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:18:28,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:18:28,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:18:28,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:18:28,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:18:28,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:18:28,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:18:28,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:18:28,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:18:28,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:18:28,163 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:18:28,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 11:18:28,163 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:18:28,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:18:28,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:18:28,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:18:28,453 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:18:28,453 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:18:28,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/airline-5.i [2022-09-16 11:18:28,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86367575f/6c691eb6a27e4fd3a6ebfdc058f0c315/FLAG070d621cc [2022-09-16 11:18:29,078 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:18:29,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/airline-5.i [2022-09-16 11:18:29,095 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86367575f/6c691eb6a27e4fd3a6ebfdc058f0c315/FLAG070d621cc [2022-09-16 11:18:29,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86367575f/6c691eb6a27e4fd3a6ebfdc058f0c315 [2022-09-16 11:18:29,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:18:29,549 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:18:29,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:18:29,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:18:29,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:18:29,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:18:29" (1/1) ... [2022-09-16 11:18:29,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3570893e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:29, skipping insertion in model container [2022-09-16 11:18:29,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:18:29" (1/1) ... [2022-09-16 11:18:29,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:18:29,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:18:29,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/airline-5.i[32089,32102] [2022-09-16 11:18:29,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:18:29,987 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:18:30,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/airline-5.i[32089,32102] [2022-09-16 11:18:30,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:18:30,078 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:18:30,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:30 WrapperNode [2022-09-16 11:18:30,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:18:30,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:18:30,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:18:30,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:18:30,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:30" (1/1) ... [2022-09-16 11:18:30,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:30" (1/1) ... [2022-09-16 11:18:30,145 INFO L138 Inliner]: procedures = 162, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2022-09-16 11:18:30,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:18:30,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:18:30,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:18:30,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:18:30,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:30" (1/1) ... [2022-09-16 11:18:30,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:30" (1/1) ... [2022-09-16 11:18:30,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:30" (1/1) ... [2022-09-16 11:18:30,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:30" (1/1) ... [2022-09-16 11:18:30,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:30" (1/1) ... [2022-09-16 11:18:30,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:30" (1/1) ... [2022-09-16 11:18:30,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:30" (1/1) ... [2022-09-16 11:18:30,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:18:30,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:18:30,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:18:30,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:18:30,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:30" (1/1) ... [2022-09-16 11:18:30,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:18:30,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:18:30,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:18:30,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:18:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:18:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:18:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:18:30,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:18:30,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:18:30,290 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2022-09-16 11:18:30,290 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2022-09-16 11:18:30,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:18:30,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:18:30,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:18:30,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:18:30,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:18:30,291 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:18:30,451 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:18:30,452 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:18:30,575 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:18:30,591 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:18:30,591 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-16 11:18:30,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:18:30 BoogieIcfgContainer [2022-09-16 11:18:30,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:18:30,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:18:30,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:18:30,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:18:30,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:18:29" (1/3) ... [2022-09-16 11:18:30,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab1607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:18:30, skipping insertion in model container [2022-09-16 11:18:30,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:18:30" (2/3) ... [2022-09-16 11:18:30,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab1607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:18:30, skipping insertion in model container [2022-09-16 11:18:30,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:18:30" (3/3) ... [2022-09-16 11:18:30,606 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-5.i [2022-09-16 11:18:30,613 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 11:18:30,622 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:18:30,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:18:30,622 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:18:30,682 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-16 11:18:30,718 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 78 transitions, 164 flow [2022-09-16 11:18:30,769 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 371 states, 354 states have (on average 2.132768361581921) internal successors, (755), 370 states have internal predecessors, (755), 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) [2022-09-16 11:18:30,787 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:18:30,795 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@39e0c110, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:18:30,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-09-16 11:18:30,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 371 states, 354 states have (on average 2.132768361581921) internal successors, (755), 370 states have internal predecessors, (755), 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) [2022-09-16 11:18:30,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-09-16 11:18:30,810 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:30,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:30,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:18:30,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:30,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1421870176, now seen corresponding path program 1 times [2022-09-16 11:18:30,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:30,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656587424] [2022-09-16 11:18:30,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:30,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:31,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:31,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:31,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656587424] [2022-09-16 11:18:31,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656587424] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:31,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:31,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:18:31,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356540325] [2022-09-16 11:18:31,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:31,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:18:31,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:31,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:18:31,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:18:31,177 INFO L87 Difference]: Start difference. First operand has 371 states, 354 states have (on average 2.132768361581921) internal successors, (755), 370 states have internal predecessors, (755), 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 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-09-16 11:18:31,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:31,295 INFO L93 Difference]: Finished difference Result 337 states and 650 transitions. [2022-09-16 11:18:31,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:18:31,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2022-09-16 11:18:31,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:31,311 INFO L225 Difference]: With dead ends: 337 [2022-09-16 11:18:31,313 INFO L226 Difference]: Without dead ends: 292 [2022-09-16 11:18:31,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:18:31,321 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 41 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:31,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 189 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:18:31,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-09-16 11:18:31,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2022-09-16 11:18:31,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 281 states have (on average 1.9395017793594307) internal successors, (545), 291 states have internal predecessors, (545), 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) [2022-09-16 11:18:31,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 545 transitions. [2022-09-16 11:18:31,379 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 545 transitions. Word has length 33 [2022-09-16 11:18:31,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:31,380 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 545 transitions. [2022-09-16 11:18:31,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-09-16 11:18:31,380 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 545 transitions. [2022-09-16 11:18:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-09-16 11:18:31,381 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:31,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:31,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:18:31,382 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:18:31,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:31,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1146623480, now seen corresponding path program 1 times [2022-09-16 11:18:31,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:31,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610596164] [2022-09-16 11:18:31,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:31,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:31,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:31,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:31,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610596164] [2022-09-16 11:18:31,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610596164] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:31,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:31,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:18:31,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914833655] [2022-09-16 11:18:31,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:31,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:18:31,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:31,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:18:31,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:18:31,446 INFO L87 Difference]: Start difference. First operand 292 states and 545 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-09-16 11:18:31,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:31,492 INFO L93 Difference]: Finished difference Result 278 states and 477 transitions. [2022-09-16 11:18:31,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:18:31,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2022-09-16 11:18:31,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:31,494 INFO L225 Difference]: With dead ends: 278 [2022-09-16 11:18:31,494 INFO L226 Difference]: Without dead ends: 228 [2022-09-16 11:18:31,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:18:31,495 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 94 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:31,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 182 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:31,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-09-16 11:18:31,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 171. [2022-09-16 11:18:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 168 states have (on average 1.7797619047619047) internal successors, (299), 170 states have internal predecessors, (299), 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) [2022-09-16 11:18:31,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 299 transitions. [2022-09-16 11:18:31,505 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 299 transitions. Word has length 34 [2022-09-16 11:18:31,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:31,506 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 299 transitions. [2022-09-16 11:18:31,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-09-16 11:18:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 299 transitions. [2022-09-16 11:18:31,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-09-16 11:18:31,520 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:31,520 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:31,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:18:31,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:18:31,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:31,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1075584045, now seen corresponding path program 1 times [2022-09-16 11:18:31,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:31,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028658215] [2022-09-16 11:18:31,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:31,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-16 11:18:31,556 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-16 11:18:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-16 11:18:31,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-16 11:18:31,612 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-16 11:18:31,613 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-09-16 11:18:31,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-09-16 11:18:31,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-09-16 11:18:31,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-09-16 11:18:31,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2022-09-16 11:18:31,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-09-16 11:18:31,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-09-16 11:18:31,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-09-16 11:18:31,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-09-16 11:18:31,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:18:31,623 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-09-16 11:18:31,624 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-09-16 11:18:31,625 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-09-16 11:18:31,654 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 11:18:31,657 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 88 places, 92 transitions, 202 flow [2022-09-16 11:18:31,811 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4320 states, 4249 states have (on average 3.120498940927277) internal successors, (13259), 4319 states have internal predecessors, (13259), 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) [2022-09-16 11:18:31,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:18:31,814 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@39e0c110, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:18:31,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-09-16 11:18:31,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 4320 states, 4249 states have (on average 3.120498940927277) internal successors, (13259), 4319 states have internal predecessors, (13259), 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) [2022-09-16 11:18:31,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-09-16 11:18:31,832 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:31,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:31,832 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-09-16 11:18:31,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:31,833 INFO L85 PathProgramCache]: Analyzing trace with hash -576166200, now seen corresponding path program 1 times [2022-09-16 11:18:31,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:31,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455628593] [2022-09-16 11:18:31,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:31,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:31,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:31,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:31,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455628593] [2022-09-16 11:18:31,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455628593] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:31,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:31,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:18:31,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98830649] [2022-09-16 11:18:31,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:31,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:18:31,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:31,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:18:31,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:18:31,933 INFO L87 Difference]: Start difference. First operand has 4320 states, 4249 states have (on average 3.120498940927277) internal successors, (13259), 4319 states have internal predecessors, (13259), 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 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-09-16 11:18:32,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:32,060 INFO L93 Difference]: Finished difference Result 4154 states and 12361 transitions. [2022-09-16 11:18:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:18:32,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2022-09-16 11:18:32,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:32,094 INFO L225 Difference]: With dead ends: 4154 [2022-09-16 11:18:32,095 INFO L226 Difference]: Without dead ends: 3909 [2022-09-16 11:18:32,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:18:32,106 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 41 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:32,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 227 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:18:32,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3909 states. [2022-09-16 11:18:32,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3909 to 3909. [2022-09-16 11:18:32,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3909 states, 3836 states have (on average 3.002085505735141) internal successors, (11516), 3908 states have internal predecessors, (11516), 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) [2022-09-16 11:18:32,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 11516 transitions. [2022-09-16 11:18:32,303 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 11516 transitions. Word has length 33 [2022-09-16 11:18:32,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:32,303 INFO L495 AbstractCegarLoop]: Abstraction has 3909 states and 11516 transitions. [2022-09-16 11:18:32,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-09-16 11:18:32,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 11516 transitions. [2022-09-16 11:18:32,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-09-16 11:18:32,308 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:32,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:32,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:18:32,309 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-09-16 11:18:32,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:32,309 INFO L85 PathProgramCache]: Analyzing trace with hash -662961940, now seen corresponding path program 1 times [2022-09-16 11:18:32,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:32,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428992805] [2022-09-16 11:18:32,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:32,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:32,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:32,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:32,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428992805] [2022-09-16 11:18:32,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428992805] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:32,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:32,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:18:32,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325953324] [2022-09-16 11:18:32,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:32,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:18:32,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:32,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:18:32,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:18:32,420 INFO L87 Difference]: Start difference. First operand 3909 states and 11516 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-09-16 11:18:32,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:32,538 INFO L93 Difference]: Finished difference Result 5289 states and 14153 transitions. [2022-09-16 11:18:32,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:18:32,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2022-09-16 11:18:32,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:32,571 INFO L225 Difference]: With dead ends: 5289 [2022-09-16 11:18:32,571 INFO L226 Difference]: Without dead ends: 4959 [2022-09-16 11:18:32,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:18:32,572 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 158 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:32,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 267 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:18:32,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4959 states. [2022-09-16 11:18:32,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4959 to 3474. [2022-09-16 11:18:32,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3474 states, 3425 states have (on average 2.8277372262773723) internal successors, (9685), 3473 states have internal predecessors, (9685), 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) [2022-09-16 11:18:32,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 9685 transitions. [2022-09-16 11:18:32,803 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 9685 transitions. Word has length 34 [2022-09-16 11:18:32,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:32,805 INFO L495 AbstractCegarLoop]: Abstraction has 3474 states and 9685 transitions. [2022-09-16 11:18:32,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-09-16 11:18:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 9685 transitions. [2022-09-16 11:18:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-09-16 11:18:32,814 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:32,815 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:32,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:18:32,818 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-09-16 11:18:32,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:32,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1869964892, now seen corresponding path program 1 times [2022-09-16 11:18:32,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:32,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126492213] [2022-09-16 11:18:32,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:32,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:32,888 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:18:32,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:32,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126492213] [2022-09-16 11:18:32,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126492213] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:32,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:32,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:18:32,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813056279] [2022-09-16 11:18:32,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:32,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:18:32,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:32,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:18:32,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:18:32,891 INFO L87 Difference]: Start difference. First operand 3474 states and 9685 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-09-16 11:18:32,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:32,969 INFO L93 Difference]: Finished difference Result 3362 states and 9343 transitions. [2022-09-16 11:18:32,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:18:32,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 45 [2022-09-16 11:18:32,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:32,990 INFO L225 Difference]: With dead ends: 3362 [2022-09-16 11:18:32,990 INFO L226 Difference]: Without dead ends: 3362 [2022-09-16 11:18:32,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:18:32,992 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 81 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:32,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 226 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:33,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2022-09-16 11:18:33,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3362. [2022-09-16 11:18:33,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 3318 states have (on average 2.81585292344786) internal successors, (9343), 3361 states have internal predecessors, (9343), 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) [2022-09-16 11:18:33,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 9343 transitions. [2022-09-16 11:18:33,108 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 9343 transitions. Word has length 45 [2022-09-16 11:18:33,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:33,108 INFO L495 AbstractCegarLoop]: Abstraction has 3362 states and 9343 transitions. [2022-09-16 11:18:33,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-09-16 11:18:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 9343 transitions. [2022-09-16 11:18:33,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-09-16 11:18:33,111 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:33,111 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:33,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:18:33,111 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-09-16 11:18:33,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:33,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2130857756, now seen corresponding path program 1 times [2022-09-16 11:18:33,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:33,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183302199] [2022-09-16 11:18:33,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:33,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:33,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 11:18:33,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:33,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183302199] [2022-09-16 11:18:33,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183302199] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:33,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:33,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:18:33,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175048558] [2022-09-16 11:18:33,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:33,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:18:33,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:33,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:18:33,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:18:33,228 INFO L87 Difference]: Start difference. First operand 3362 states and 9343 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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) [2022-09-16 11:18:33,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:33,310 INFO L93 Difference]: Finished difference Result 4364 states and 11276 transitions. [2022-09-16 11:18:33,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:18:33,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 46 [2022-09-16 11:18:33,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:33,346 INFO L225 Difference]: With dead ends: 4364 [2022-09-16 11:18:33,346 INFO L226 Difference]: Without dead ends: 4044 [2022-09-16 11:18:33,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:18:33,347 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 145 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:33,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 284 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:33,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2022-09-16 11:18:33,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 3313. [2022-09-16 11:18:33,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3313 states, 3269 states have (on average 2.7032731722239216) internal successors, (8837), 3312 states have internal predecessors, (8837), 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) [2022-09-16 11:18:33,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 8837 transitions. [2022-09-16 11:18:33,476 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 8837 transitions. Word has length 46 [2022-09-16 11:18:33,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:33,478 INFO L495 AbstractCegarLoop]: Abstraction has 3313 states and 8837 transitions. [2022-09-16 11:18:33,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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) [2022-09-16 11:18:33,478 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 8837 transitions. [2022-09-16 11:18:33,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-09-16 11:18:33,479 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:33,479 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:33,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:18:33,480 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-09-16 11:18:33,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:33,480 INFO L85 PathProgramCache]: Analyzing trace with hash 2134337052, now seen corresponding path program 1 times [2022-09-16 11:18:33,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:33,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874118944] [2022-09-16 11:18:33,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:33,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:33,552 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:33,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:33,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874118944] [2022-09-16 11:18:33,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874118944] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:18:33,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688059964] [2022-09-16 11:18:33,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:33,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:18:33,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:18:33,556 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:18:33,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 11:18:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:33,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:18:33,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:18:33,748 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:33,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:18:33,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688059964] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:33,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:18:33,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:18:33,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270230578] [2022-09-16 11:18:33,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:33,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:18:33,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:33,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:18:33,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:18:33,751 INFO L87 Difference]: Start difference. First operand 3313 states and 8837 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-09-16 11:18:33,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:33,836 INFO L93 Difference]: Finished difference Result 3201 states and 8505 transitions. [2022-09-16 11:18:33,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:18:33,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2022-09-16 11:18:33,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:33,857 INFO L225 Difference]: With dead ends: 3201 [2022-09-16 11:18:33,858 INFO L226 Difference]: Without dead ends: 3201 [2022-09-16 11:18:33,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:18:33,862 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 163 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:33,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 244 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:33,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2022-09-16 11:18:33,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 3201. [2022-09-16 11:18:33,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3162 states have (on average 2.689753320683112) internal successors, (8505), 3200 states have internal predecessors, (8505), 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) [2022-09-16 11:18:33,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 8505 transitions. [2022-09-16 11:18:33,986 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 8505 transitions. Word has length 46 [2022-09-16 11:18:33,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:33,988 INFO L495 AbstractCegarLoop]: Abstraction has 3201 states and 8505 transitions. [2022-09-16 11:18:33,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-09-16 11:18:33,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 8505 transitions. [2022-09-16 11:18:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-09-16 11:18:33,990 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:33,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:34,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 11:18:34,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:18:34,218 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-09-16 11:18:34,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:34,218 INFO L85 PathProgramCache]: Analyzing trace with hash -971325098, now seen corresponding path program 1 times [2022-09-16 11:18:34,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:34,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366475965] [2022-09-16 11:18:34,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:34,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:34,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:34,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:34,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366475965] [2022-09-16 11:18:34,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366475965] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:18:34,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021963753] [2022-09-16 11:18:34,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:34,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:18:34,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:18:34,262 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:18:34,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 11:18:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:34,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 11:18:34,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:18:34,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:18:34,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:18:34,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021963753] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:34,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:18:34,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-09-16 11:18:34,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907587714] [2022-09-16 11:18:34,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:34,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:18:34,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:34,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:18:34,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:18:34,363 INFO L87 Difference]: Start difference. First operand 3201 states and 8505 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-09-16 11:18:34,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:34,393 INFO L93 Difference]: Finished difference Result 3027 states and 7561 transitions. [2022-09-16 11:18:34,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:18:34,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2022-09-16 11:18:34,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:34,403 INFO L225 Difference]: With dead ends: 3027 [2022-09-16 11:18:34,404 INFO L226 Difference]: Without dead ends: 3027 [2022-09-16 11:18:34,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:18:34,405 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 53 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:34,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 112 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:34,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2022-09-16 11:18:34,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 2802. [2022-09-16 11:18:34,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 2763 states have (on average 2.5682229460731087) internal successors, (7096), 2801 states have internal predecessors, (7096), 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) [2022-09-16 11:18:34,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 7096 transitions. [2022-09-16 11:18:34,484 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 7096 transitions. Word has length 48 [2022-09-16 11:18:34,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:34,484 INFO L495 AbstractCegarLoop]: Abstraction has 2802 states and 7096 transitions. [2022-09-16 11:18:34,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-09-16 11:18:34,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 7096 transitions. [2022-09-16 11:18:34,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 11:18:34,486 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:34,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:34,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 11:18:34,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-09-16 11:18:34,716 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-09-16 11:18:34,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:34,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1207906517, now seen corresponding path program 1 times [2022-09-16 11:18:34,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:34,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375050937] [2022-09-16 11:18:34,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:34,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:34,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:34,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375050937] [2022-09-16 11:18:34,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375050937] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:18:34,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656751966] [2022-09-16 11:18:34,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:34,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:18:34,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:18:34,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:18:34,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 11:18:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:34,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 11:18:34,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:18:34,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:34,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:18:34,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:34,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656751966] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:18:34,934 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:18:34,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-09-16 11:18:34,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603481653] [2022-09-16 11:18:34,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:18:34,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-16 11:18:34,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:34,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-16 11:18:34,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:18:34,936 INFO L87 Difference]: Start difference. First operand 2802 states and 7096 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 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) [2022-09-16 11:18:35,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:35,017 INFO L93 Difference]: Finished difference Result 1347 states and 3521 transitions. [2022-09-16 11:18:35,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:18:35,017 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 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 51 [2022-09-16 11:18:35,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:35,022 INFO L225 Difference]: With dead ends: 1347 [2022-09-16 11:18:35,022 INFO L226 Difference]: Without dead ends: 1347 [2022-09-16 11:18:35,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-09-16 11:18:35,024 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 237 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:35,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 231 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:35,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2022-09-16 11:18:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1347. [2022-09-16 11:18:35,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1342 states have (on average 2.6236959761549925) internal successors, (3521), 1346 states have internal predecessors, (3521), 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) [2022-09-16 11:18:35,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 3521 transitions. [2022-09-16 11:18:35,060 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 3521 transitions. Word has length 51 [2022-09-16 11:18:35,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:35,061 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 3521 transitions. [2022-09-16 11:18:35,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 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) [2022-09-16 11:18:35,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 3521 transitions. [2022-09-16 11:18:35,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 11:18:35,063 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:35,063 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:35,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 11:18:35,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:18:35,280 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-09-16 11:18:35,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:35,280 INFO L85 PathProgramCache]: Analyzing trace with hash 229776431, now seen corresponding path program 1 times [2022-09-16 11:18:35,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:35,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920738140] [2022-09-16 11:18:35,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:35,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:35,311 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 11:18:35,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:35,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920738140] [2022-09-16 11:18:35,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920738140] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:35,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:35,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:18:35,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188494345] [2022-09-16 11:18:35,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:35,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:18:35,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:35,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:18:35,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:18:35,313 INFO L87 Difference]: Start difference. First operand 1347 states and 3521 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-09-16 11:18:35,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:35,330 INFO L93 Difference]: Finished difference Result 1425 states and 3684 transitions. [2022-09-16 11:18:35,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:18:35,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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 51 [2022-09-16 11:18:35,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:35,334 INFO L225 Difference]: With dead ends: 1425 [2022-09-16 11:18:35,334 INFO L226 Difference]: Without dead ends: 1425 [2022-09-16 11:18:35,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:18:35,335 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 27 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:35,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 118 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:35,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2022-09-16 11:18:35,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1308. [2022-09-16 11:18:35,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 1304 states have (on average 2.6226993865030677) internal successors, (3420), 1307 states have internal predecessors, (3420), 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) [2022-09-16 11:18:35,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 3420 transitions. [2022-09-16 11:18:35,362 INFO L78 Accepts]: Start accepts. Automaton has 1308 states and 3420 transitions. Word has length 51 [2022-09-16 11:18:35,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:35,363 INFO L495 AbstractCegarLoop]: Abstraction has 1308 states and 3420 transitions. [2022-09-16 11:18:35,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-09-16 11:18:35,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1308 states and 3420 transitions. [2022-09-16 11:18:35,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 11:18:35,364 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:35,364 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:35,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 11:18:35,365 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-09-16 11:18:35,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:35,365 INFO L85 PathProgramCache]: Analyzing trace with hash 229776432, now seen corresponding path program 1 times [2022-09-16 11:18:35,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:35,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033487341] [2022-09-16 11:18:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:35,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:35,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:35,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:35,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033487341] [2022-09-16 11:18:35,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033487341] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:18:35,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952623747] [2022-09-16 11:18:35,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:35,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:18:35,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:18:35,410 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:18:35,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 11:18:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:35,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:18:35,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:18:35,530 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:35,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:18:35,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952623747] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:35,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:18:35,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:18:35,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136162806] [2022-09-16 11:18:35,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:35,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:18:35,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:35,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:18:35,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:18:35,535 INFO L87 Difference]: Start difference. First operand 1308 states and 3420 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 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) [2022-09-16 11:18:35,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:35,615 INFO L93 Difference]: Finished difference Result 1620 states and 4111 transitions. [2022-09-16 11:18:35,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:18:35,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2022-09-16 11:18:35,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:35,620 INFO L225 Difference]: With dead ends: 1620 [2022-09-16 11:18:35,620 INFO L226 Difference]: Without dead ends: 1620 [2022-09-16 11:18:35,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:18:35,621 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 104 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:35,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 309 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:35,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2022-09-16 11:18:35,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1230. [2022-09-16 11:18:35,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1227 states have (on average 2.6226568867155664) internal successors, (3218), 1229 states have internal predecessors, (3218), 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) [2022-09-16 11:18:35,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 3218 transitions. [2022-09-16 11:18:35,650 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 3218 transitions. Word has length 51 [2022-09-16 11:18:35,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:35,651 INFO L495 AbstractCegarLoop]: Abstraction has 1230 states and 3218 transitions. [2022-09-16 11:18:35,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 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) [2022-09-16 11:18:35,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 3218 transitions. [2022-09-16 11:18:35,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 11:18:35,652 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:35,652 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:35,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 11:18:35,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:18:35,877 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-09-16 11:18:35,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:35,877 INFO L85 PathProgramCache]: Analyzing trace with hash -803271075, now seen corresponding path program 1 times [2022-09-16 11:18:35,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:35,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753598701] [2022-09-16 11:18:35,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:35,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:35,922 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 11:18:35,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:35,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753598701] [2022-09-16 11:18:35,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753598701] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:35,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:35,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:18:35,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138385326] [2022-09-16 11:18:35,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:35,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:18:35,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:35,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:18:35,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:18:35,924 INFO L87 Difference]: Start difference. First operand 1230 states and 3218 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-09-16 11:18:35,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:35,939 INFO L93 Difference]: Finished difference Result 1308 states and 3381 transitions. [2022-09-16 11:18:35,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:18:35,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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 51 [2022-09-16 11:18:35,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:35,943 INFO L225 Difference]: With dead ends: 1308 [2022-09-16 11:18:35,944 INFO L226 Difference]: Without dead ends: 1308 [2022-09-16 11:18:35,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:18:35,945 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 26 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:35,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 117 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:35,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2022-09-16 11:18:35,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1191. [2022-09-16 11:18:35,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 1189 states have (on average 2.6215306980656012) internal successors, (3117), 1190 states have internal predecessors, (3117), 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) [2022-09-16 11:18:35,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 3117 transitions. [2022-09-16 11:18:35,972 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 3117 transitions. Word has length 51 [2022-09-16 11:18:35,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:35,972 INFO L495 AbstractCegarLoop]: Abstraction has 1191 states and 3117 transitions. [2022-09-16 11:18:35,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-09-16 11:18:35,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 3117 transitions. [2022-09-16 11:18:35,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 11:18:35,974 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:35,974 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:35,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 11:18:35,974 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-09-16 11:18:35,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:35,974 INFO L85 PathProgramCache]: Analyzing trace with hash -803271074, now seen corresponding path program 1 times [2022-09-16 11:18:35,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:35,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605447753] [2022-09-16 11:18:35,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:35,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:36,039 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 11:18:36,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:36,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605447753] [2022-09-16 11:18:36,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605447753] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:36,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:36,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:18:36,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955447516] [2022-09-16 11:18:36,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:36,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:18:36,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:36,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:18:36,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:18:36,042 INFO L87 Difference]: Start difference. First operand 1191 states and 3117 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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) [2022-09-16 11:18:36,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:36,135 INFO L93 Difference]: Finished difference Result 1542 states and 3909 transitions. [2022-09-16 11:18:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:18:36,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 51 [2022-09-16 11:18:36,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:36,140 INFO L225 Difference]: With dead ends: 1542 [2022-09-16 11:18:36,140 INFO L226 Difference]: Without dead ends: 1542 [2022-09-16 11:18:36,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:18:36,141 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 111 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:36,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 352 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:36,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2022-09-16 11:18:36,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1113. [2022-09-16 11:18:36,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 1112 states have (on average 2.6214028776978417) internal successors, (2915), 1112 states have internal predecessors, (2915), 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) [2022-09-16 11:18:36,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 2915 transitions. [2022-09-16 11:18:36,169 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 2915 transitions. Word has length 51 [2022-09-16 11:18:36,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:36,169 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 2915 transitions. [2022-09-16 11:18:36,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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) [2022-09-16 11:18:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 2915 transitions. [2022-09-16 11:18:36,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-09-16 11:18:36,171 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:36,171 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:36,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-09-16 11:18:36,171 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-09-16 11:18:36,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:36,172 INFO L85 PathProgramCache]: Analyzing trace with hash 820541403, now seen corresponding path program 1 times [2022-09-16 11:18:36,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:36,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546691463] [2022-09-16 11:18:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:36,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-16 11:18:36,184 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-16 11:18:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-16 11:18:36,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-16 11:18:36,197 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-16 11:18:36,197 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2022-09-16 11:18:36,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2022-09-16 11:18:36,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2022-09-16 11:18:36,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2022-09-16 11:18:36,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2022-09-16 11:18:36,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2022-09-16 11:18:36,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2022-09-16 11:18:36,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2022-09-16 11:18:36,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2022-09-16 11:18:36,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2022-09-16 11:18:36,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2022-09-16 11:18:36,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-09-16 11:18:36,199 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:36,199 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-09-16 11:18:36,199 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-09-16 11:18:36,213 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 11:18:36,215 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 106 transitions, 242 flow [2022-09-16 11:18:37,813 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 50663 states, 50394 states have (on average 4.116640869944835) internal successors, (207454), 50662 states have internal predecessors, (207454), 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) [2022-09-16 11:18:37,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:18:37,824 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@39e0c110, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:18:37,824 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-09-16 11:18:37,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 50663 states, 50394 states have (on average 4.116640869944835) internal successors, (207454), 50662 states have internal predecessors, (207454), 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) [2022-09-16 11:18:37,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-09-16 11:18:37,946 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:37,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:37,946 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:18:37,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:37,947 INFO L85 PathProgramCache]: Analyzing trace with hash 481340734, now seen corresponding path program 1 times [2022-09-16 11:18:37,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:37,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659120106] [2022-09-16 11:18:37,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:37,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:37,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:37,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659120106] [2022-09-16 11:18:37,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659120106] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:37,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:37,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:18:37,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818557835] [2022-09-16 11:18:37,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:37,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:18:37,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:37,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:18:37,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:18:38,114 INFO L87 Difference]: Start difference. First operand has 50663 states, 50394 states have (on average 4.116640869944835) internal successors, (207454), 50662 states have internal predecessors, (207454), 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 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-09-16 11:18:38,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:38,883 INFO L93 Difference]: Finished difference Result 48913 states and 195577 transitions. [2022-09-16 11:18:38,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:18:38,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2022-09-16 11:18:38,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:39,655 INFO L225 Difference]: With dead ends: 48913 [2022-09-16 11:18:39,656 INFO L226 Difference]: Without dead ends: 47668 [2022-09-16 11:18:39,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:18:39,656 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 41 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:39,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 257 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:39,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47668 states. [2022-09-16 11:18:41,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47668 to 47668. [2022-09-16 11:18:41,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47668 states, 47357 states have (on average 4.008530945794709) internal successors, (189832), 47667 states have internal predecessors, (189832), 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) [2022-09-16 11:18:42,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47668 states to 47668 states and 189832 transitions. [2022-09-16 11:18:42,217 INFO L78 Accepts]: Start accepts. Automaton has 47668 states and 189832 transitions. Word has length 33 [2022-09-16 11:18:42,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:42,217 INFO L495 AbstractCegarLoop]: Abstraction has 47668 states and 189832 transitions. [2022-09-16 11:18:42,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-09-16 11:18:42,218 INFO L276 IsEmpty]: Start isEmpty. Operand 47668 states and 189832 transitions. [2022-09-16 11:18:42,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-09-16 11:18:42,218 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:42,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:42,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-16 11:18:42,219 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:18:42,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:42,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2077885368, now seen corresponding path program 1 times [2022-09-16 11:18:42,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:42,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462062423] [2022-09-16 11:18:42,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:42,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:42,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:42,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:42,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462062423] [2022-09-16 11:18:42,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462062423] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:42,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:42,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:18:42,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407696810] [2022-09-16 11:18:42,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:42,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:18:42,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:42,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:18:42,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:18:42,258 INFO L87 Difference]: Start difference. First operand 47668 states and 189832 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-09-16 11:18:43,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:43,164 INFO L93 Difference]: Finished difference Result 78765 states and 291288 transitions. [2022-09-16 11:18:43,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:18:43,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2022-09-16 11:18:43,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:44,053 INFO L225 Difference]: With dead ends: 78765 [2022-09-16 11:18:44,053 INFO L226 Difference]: Without dead ends: 77035 [2022-09-16 11:18:44,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:18:44,054 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 199 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:44,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 305 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:18:44,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77035 states. [2022-09-16 11:18:46,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77035 to 51366. [2022-09-16 11:18:46,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51366 states, 51111 states have (on average 3.871182328657236) internal successors, (197860), 51365 states have internal predecessors, (197860), 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) [2022-09-16 11:18:46,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51366 states to 51366 states and 197860 transitions. [2022-09-16 11:18:46,417 INFO L78 Accepts]: Start accepts. Automaton has 51366 states and 197860 transitions. Word has length 34 [2022-09-16 11:18:46,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:46,417 INFO L495 AbstractCegarLoop]: Abstraction has 51366 states and 197860 transitions. [2022-09-16 11:18:46,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-09-16 11:18:46,417 INFO L276 IsEmpty]: Start isEmpty. Operand 51366 states and 197860 transitions. [2022-09-16 11:18:46,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-09-16 11:18:46,418 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:46,418 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:46,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-09-16 11:18:46,418 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:18:46,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:46,419 INFO L85 PathProgramCache]: Analyzing trace with hash 768370014, now seen corresponding path program 1 times [2022-09-16 11:18:46,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:46,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827675480] [2022-09-16 11:18:46,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:46,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:46,445 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:18:46,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:46,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827675480] [2022-09-16 11:18:46,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827675480] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:46,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:46,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:18:46,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346831353] [2022-09-16 11:18:46,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:46,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:18:46,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:46,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:18:46,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:18:46,448 INFO L87 Difference]: Start difference. First operand 51366 states and 197860 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-09-16 11:18:47,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:47,188 INFO L93 Difference]: Finished difference Result 49830 states and 191612 transitions. [2022-09-16 11:18:47,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:18:47,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 45 [2022-09-16 11:18:47,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:47,686 INFO L225 Difference]: With dead ends: 49830 [2022-09-16 11:18:47,686 INFO L226 Difference]: Without dead ends: 49830 [2022-09-16 11:18:47,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:18:47,687 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 118 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:47,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 266 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 11:18:47,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49830 states. [2022-09-16 11:18:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49830 to 49830. [2022-09-16 11:18:49,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49830 states, 49599 states have (on average 3.8632230488517916) internal successors, (191612), 49829 states have internal predecessors, (191612), 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) [2022-09-16 11:18:49,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49830 states to 49830 states and 191612 transitions. [2022-09-16 11:18:49,574 INFO L78 Accepts]: Start accepts. Automaton has 49830 states and 191612 transitions. Word has length 45 [2022-09-16 11:18:49,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:49,574 INFO L495 AbstractCegarLoop]: Abstraction has 49830 states and 191612 transitions. [2022-09-16 11:18:49,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-09-16 11:18:49,574 INFO L276 IsEmpty]: Start isEmpty. Operand 49830 states and 191612 transitions. [2022-09-16 11:18:49,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-09-16 11:18:49,575 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:49,575 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:49,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-09-16 11:18:49,575 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:18:49,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:49,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1950332988, now seen corresponding path program 1 times [2022-09-16 11:18:49,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:49,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666134236] [2022-09-16 11:18:49,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:49,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:49,617 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:49,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:49,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666134236] [2022-09-16 11:18:49,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666134236] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:18:49,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494493411] [2022-09-16 11:18:49,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:49,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:18:49,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:18:49,619 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:18:49,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 11:18:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:49,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:18:49,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:18:49,750 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:49,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:18:49,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494493411] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:49,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:18:49,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:18:49,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179293313] [2022-09-16 11:18:49,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:49,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:18:49,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:49,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:18:49,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:18:49,752 INFO L87 Difference]: Start difference. First operand 49830 states and 191612 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-09-16 11:18:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:50,454 INFO L93 Difference]: Finished difference Result 48294 states and 185364 transitions. [2022-09-16 11:18:50,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:18:50,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2022-09-16 11:18:50,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:50,708 INFO L225 Difference]: With dead ends: 48294 [2022-09-16 11:18:50,708 INFO L226 Difference]: Without dead ends: 48294 [2022-09-16 11:18:50,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:18:50,709 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 160 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:50,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 296 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:50,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48294 states. [2022-09-16 11:18:52,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48294 to 48294. [2022-09-16 11:18:52,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48294 states, 48087 states have (on average 3.8547632416245556) internal successors, (185364), 48293 states have internal predecessors, (185364), 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) [2022-09-16 11:18:52,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48294 states to 48294 states and 185364 transitions. [2022-09-16 11:18:52,560 INFO L78 Accepts]: Start accepts. Automaton has 48294 states and 185364 transitions. Word has length 46 [2022-09-16 11:18:52,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:52,561 INFO L495 AbstractCegarLoop]: Abstraction has 48294 states and 185364 transitions. [2022-09-16 11:18:52,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-09-16 11:18:52,561 INFO L276 IsEmpty]: Start isEmpty. Operand 48294 states and 185364 transitions. [2022-09-16 11:18:52,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-09-16 11:18:52,562 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:52,562 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:52,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 11:18:52,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:18:52,784 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:18:52,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:52,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1932012159, now seen corresponding path program 1 times [2022-09-16 11:18:52,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:52,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161599850] [2022-09-16 11:18:52,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:52,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 11:18:52,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:52,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161599850] [2022-09-16 11:18:52,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161599850] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:52,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:52,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:18:52,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519172450] [2022-09-16 11:18:52,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:52,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:18:52,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:52,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:18:52,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:18:52,821 INFO L87 Difference]: Start difference. First operand 48294 states and 185364 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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) [2022-09-16 11:18:53,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:53,741 INFO L93 Difference]: Finished difference Result 69311 states and 250009 transitions. [2022-09-16 11:18:53,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:18:53,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 46 [2022-09-16 11:18:53,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:54,519 INFO L225 Difference]: With dead ends: 69311 [2022-09-16 11:18:54,519 INFO L226 Difference]: Without dead ends: 67471 [2022-09-16 11:18:54,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:18:54,520 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 183 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:54,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 327 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:18:54,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67471 states. [2022-09-16 11:18:56,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67471 to 51744. [2022-09-16 11:18:56,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51744 states, 51537 states have (on average 3.758542406426451) internal successors, (193704), 51743 states have internal predecessors, (193704), 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) [2022-09-16 11:18:56,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51744 states to 51744 states and 193704 transitions. [2022-09-16 11:18:56,558 INFO L78 Accepts]: Start accepts. Automaton has 51744 states and 193704 transitions. Word has length 46 [2022-09-16 11:18:56,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:56,559 INFO L495 AbstractCegarLoop]: Abstraction has 51744 states and 193704 transitions. [2022-09-16 11:18:56,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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) [2022-09-16 11:18:56,559 INFO L276 IsEmpty]: Start isEmpty. Operand 51744 states and 193704 transitions. [2022-09-16 11:18:56,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-09-16 11:18:56,560 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:56,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:56,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-09-16 11:18:56,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:18:56,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:56,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1120461571, now seen corresponding path program 1 times [2022-09-16 11:18:56,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:56,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615325759] [2022-09-16 11:18:56,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:56,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:56,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:56,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:56,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615325759] [2022-09-16 11:18:56,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615325759] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:18:56,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:18:56,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:18:56,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180450305] [2022-09-16 11:18:56,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:18:56,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:18:56,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:56,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:18:56,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:18:56,586 INFO L87 Difference]: Start difference. First operand 51744 states and 193704 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-09-16 11:18:57,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:18:57,363 INFO L93 Difference]: Finished difference Result 60096 states and 206997 transitions. [2022-09-16 11:18:57,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:18:57,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2022-09-16 11:18:57,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:18:57,778 INFO L225 Difference]: With dead ends: 60096 [2022-09-16 11:18:57,779 INFO L226 Difference]: Without dead ends: 60096 [2022-09-16 11:18:57,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:18:57,779 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 74 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:18:57,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 152 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:18:57,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60096 states. [2022-09-16 11:18:59,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60096 to 49068. [2022-09-16 11:18:59,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49068 states, 48861 states have (on average 3.551216716808907) internal successors, (173516), 49067 states have internal predecessors, (173516), 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) [2022-09-16 11:18:59,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49068 states to 49068 states and 173516 transitions. [2022-09-16 11:18:59,500 INFO L78 Accepts]: Start accepts. Automaton has 49068 states and 173516 transitions. Word has length 48 [2022-09-16 11:18:59,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:18:59,500 INFO L495 AbstractCegarLoop]: Abstraction has 49068 states and 173516 transitions. [2022-09-16 11:18:59,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-09-16 11:18:59,501 INFO L276 IsEmpty]: Start isEmpty. Operand 49068 states and 173516 transitions. [2022-09-16 11:18:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 11:18:59,502 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:18:59,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:18:59,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-09-16 11:18:59,502 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:18:59,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:18:59,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1031890544, now seen corresponding path program 1 times [2022-09-16 11:18:59,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:18:59,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611861926] [2022-09-16 11:18:59,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:59,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:18:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:59,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:18:59,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611861926] [2022-09-16 11:18:59,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611861926] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:18:59,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111103148] [2022-09-16 11:18:59,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:18:59,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:18:59,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:18:59,541 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:18:59,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 11:18:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:18:59,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 11:18:59,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:18:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:59,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:18:59,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:18:59,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111103148] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:18:59,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:18:59,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-09-16 11:18:59,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549462269] [2022-09-16 11:18:59,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:18:59,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-16 11:18:59,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:18:59,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-16 11:18:59,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:18:59,708 INFO L87 Difference]: Start difference. First operand 49068 states and 173516 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 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) [2022-09-16 11:19:00,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:19:00,483 INFO L93 Difference]: Finished difference Result 48948 states and 173082 transitions. [2022-09-16 11:19:00,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:19:00,485 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 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 51 [2022-09-16 11:19:00,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:19:00,713 INFO L225 Difference]: With dead ends: 48948 [2022-09-16 11:19:00,713 INFO L226 Difference]: Without dead ends: 48948 [2022-09-16 11:19:00,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-09-16 11:19:00,714 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 187 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:19:00,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 602 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:19:00,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48948 states. [2022-09-16 11:19:01,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48948 to 48948. [2022-09-16 11:19:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48948 states, 48741 states have (on average 3.5510555794915986) internal successors, (173082), 48947 states have internal predecessors, (173082), 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) [2022-09-16 11:19:02,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48948 states to 48948 states and 173082 transitions. [2022-09-16 11:19:02,402 INFO L78 Accepts]: Start accepts. Automaton has 48948 states and 173082 transitions. Word has length 51 [2022-09-16 11:19:02,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:19:02,403 INFO L495 AbstractCegarLoop]: Abstraction has 48948 states and 173082 transitions. [2022-09-16 11:19:02,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 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) [2022-09-16 11:19:02,403 INFO L276 IsEmpty]: Start isEmpty. Operand 48948 states and 173082 transitions. [2022-09-16 11:19:02,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 11:19:02,404 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:19:02,404 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:19:02,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-09-16 11:19:02,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:19:02,605 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:19:02,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:19:02,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2107382602, now seen corresponding path program 1 times [2022-09-16 11:19:02,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:19:02,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825182328] [2022-09-16 11:19:02,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:19:02,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:19:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:19:02,661 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:19:02,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:19:02,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825182328] [2022-09-16 11:19:02,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825182328] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:19:02,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669996767] [2022-09-16 11:19:02,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:19:02,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:19:02,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:19:02,664 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:19:02,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 11:19:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:19:02,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 11:19:02,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:19:02,772 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:19:02,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:19:02,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669996767] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:19:02,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:19:02,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-09-16 11:19:02,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217741585] [2022-09-16 11:19:02,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:19:02,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:19:02,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:19:02,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:19:02,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:19:02,776 INFO L87 Difference]: Start difference. First operand 48948 states and 173082 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-09-16 11:19:03,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:19:03,174 INFO L93 Difference]: Finished difference Result 48007 states and 168801 transitions. [2022-09-16 11:19:03,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:19:03,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 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 51 [2022-09-16 11:19:03,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:19:03,790 INFO L225 Difference]: With dead ends: 48007 [2022-09-16 11:19:03,791 INFO L226 Difference]: Without dead ends: 48007 [2022-09-16 11:19:03,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:19:03,791 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 146 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:19:03,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 216 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:19:03,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48007 states. [2022-09-16 11:19:04,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48007 to 46686. [2022-09-16 11:19:05,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46686 states, 46527 states have (on average 3.5501106884174782) internal successors, (165176), 46685 states have internal predecessors, (165176), 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) [2022-09-16 11:19:05,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46686 states to 46686 states and 165176 transitions. [2022-09-16 11:19:05,220 INFO L78 Accepts]: Start accepts. Automaton has 46686 states and 165176 transitions. Word has length 51 [2022-09-16 11:19:05,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:19:05,220 INFO L495 AbstractCegarLoop]: Abstraction has 46686 states and 165176 transitions. [2022-09-16 11:19:05,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-09-16 11:19:05,220 INFO L276 IsEmpty]: Start isEmpty. Operand 46686 states and 165176 transitions. [2022-09-16 11:19:05,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 11:19:05,221 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:19:05,221 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:19:05,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 11:19:05,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:19:05,422 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:19:05,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:19:05,423 INFO L85 PathProgramCache]: Analyzing trace with hash -2107382603, now seen corresponding path program 1 times [2022-09-16 11:19:05,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:19:05,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636226779] [2022-09-16 11:19:05,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:19:05,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:19:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:19:05,752 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 11:19:05,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:19:05,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636226779] [2022-09-16 11:19:05,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636226779] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:19:05,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:19:05,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:19:05,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669767281] [2022-09-16 11:19:05,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:19:05,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:19:05,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:19:05,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:19:05,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:19:05,755 INFO L87 Difference]: Start difference. First operand 46686 states and 165176 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-09-16 11:19:06,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:19:06,117 INFO L93 Difference]: Finished difference Result 51773 states and 179667 transitions. [2022-09-16 11:19:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:19:06,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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 51 [2022-09-16 11:19:06,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:19:06,318 INFO L225 Difference]: With dead ends: 51773 [2022-09-16 11:19:06,318 INFO L226 Difference]: Without dead ends: 49873 [2022-09-16 11:19:06,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:19:06,319 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 65 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:19:06,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 222 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:19:06,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49873 states. [2022-09-16 11:19:07,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49873 to 40582. [2022-09-16 11:19:07,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40582 states, 40471 states have (on average 3.547873786167873) internal successors, (143586), 40581 states have internal predecessors, (143586), 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) [2022-09-16 11:19:07,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40582 states to 40582 states and 143586 transitions. [2022-09-16 11:19:07,912 INFO L78 Accepts]: Start accepts. Automaton has 40582 states and 143586 transitions. Word has length 51 [2022-09-16 11:19:07,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:19:07,913 INFO L495 AbstractCegarLoop]: Abstraction has 40582 states and 143586 transitions. [2022-09-16 11:19:07,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-09-16 11:19:07,913 INFO L276 IsEmpty]: Start isEmpty. Operand 40582 states and 143586 transitions. [2022-09-16 11:19:07,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 11:19:07,914 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:19:07,914 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:19:07,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-09-16 11:19:07,914 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:19:07,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:19:07,915 INFO L85 PathProgramCache]: Analyzing trace with hash 2051008961, now seen corresponding path program 1 times [2022-09-16 11:19:07,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:19:07,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554002408] [2022-09-16 11:19:07,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:19:07,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:19:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:19:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 11:19:07,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:19:07,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554002408] [2022-09-16 11:19:07,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554002408] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:19:07,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:19:07,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:19:07,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947599762] [2022-09-16 11:19:07,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:19:07,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:19:07,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:19:07,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:19:07,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:19:07,936 INFO L87 Difference]: Start difference. First operand 40582 states and 143586 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-09-16 11:19:08,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:19:08,174 INFO L93 Difference]: Finished difference Result 44165 states and 153848 transitions. [2022-09-16 11:19:08,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:19:08,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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 51 [2022-09-16 11:19:08,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:19:08,663 INFO L225 Difference]: With dead ends: 44165 [2022-09-16 11:19:08,664 INFO L226 Difference]: Without dead ends: 44165 [2022-09-16 11:19:08,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:19:08,664 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 65 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:19:08,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 211 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:19:08,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44165 states. [2022-09-16 11:19:09,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44165 to 38626. [2022-09-16 11:19:09,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38626 states, 38547 states have (on average 3.5476431369496977) internal successors, (136751), 38625 states have internal predecessors, (136751), 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) [2022-09-16 11:19:09,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38626 states to 38626 states and 136751 transitions. [2022-09-16 11:19:09,768 INFO L78 Accepts]: Start accepts. Automaton has 38626 states and 136751 transitions. Word has length 51 [2022-09-16 11:19:09,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:19:09,768 INFO L495 AbstractCegarLoop]: Abstraction has 38626 states and 136751 transitions. [2022-09-16 11:19:09,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-09-16 11:19:09,768 INFO L276 IsEmpty]: Start isEmpty. Operand 38626 states and 136751 transitions. [2022-09-16 11:19:09,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 11:19:09,769 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:19:09,769 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:19:09,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-09-16 11:19:09,770 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:19:09,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:19:09,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2051008962, now seen corresponding path program 1 times [2022-09-16 11:19:09,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:19:09,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880780604] [2022-09-16 11:19:09,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:19:09,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:19:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:19:09,811 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 11:19:09,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:19:09,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880780604] [2022-09-16 11:19:09,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880780604] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:19:09,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:19:09,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:19:09,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6561678] [2022-09-16 11:19:09,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:19:09,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:19:09,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:19:09,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:19:09,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:19:09,813 INFO L87 Difference]: Start difference. First operand 38626 states and 136751 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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) [2022-09-16 11:19:10,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:19:10,803 INFO L93 Difference]: Finished difference Result 65640 states and 217906 transitions. [2022-09-16 11:19:10,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:19:10,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 51 [2022-09-16 11:19:10,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:19:11,071 INFO L225 Difference]: With dead ends: 65640 [2022-09-16 11:19:11,072 INFO L226 Difference]: Without dead ends: 63570 [2022-09-16 11:19:11,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:19:11,072 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 391 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:19:11,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 944 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:19:11,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63570 states. [2022-09-16 11:19:12,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63570 to 37698. [2022-09-16 11:19:12,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37698 states, 37635 states have (on average 3.5313405075063105) internal successors, (132902), 37697 states have internal predecessors, (132902), 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) [2022-09-16 11:19:12,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37698 states to 37698 states and 132902 transitions. [2022-09-16 11:19:12,792 INFO L78 Accepts]: Start accepts. Automaton has 37698 states and 132902 transitions. Word has length 51 [2022-09-16 11:19:12,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:19:12,792 INFO L495 AbstractCegarLoop]: Abstraction has 37698 states and 132902 transitions. [2022-09-16 11:19:12,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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) [2022-09-16 11:19:12,792 INFO L276 IsEmpty]: Start isEmpty. Operand 37698 states and 132902 transitions. [2022-09-16 11:19:12,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-09-16 11:19:12,796 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:19:12,796 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:19:12,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-09-16 11:19:12,797 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:19:12,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:19:12,797 INFO L85 PathProgramCache]: Analyzing trace with hash 111404811, now seen corresponding path program 1 times [2022-09-16 11:19:12,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:19:12,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658861256] [2022-09-16 11:19:12,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:19:12,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:19:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:19:12,848 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-09-16 11:19:12,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:19:12,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658861256] [2022-09-16 11:19:12,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658861256] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:19:12,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:19:12,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:19:12,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118827813] [2022-09-16 11:19:12,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:19:12,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:19:12,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:19:12,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:19:12,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:19:12,850 INFO L87 Difference]: Start difference. First operand 37698 states and 132902 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 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) [2022-09-16 11:19:13,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:19:13,144 INFO L93 Difference]: Finished difference Result 42554 states and 145040 transitions. [2022-09-16 11:19:13,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:19:13,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 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 58 [2022-09-16 11:19:13,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:19:13,299 INFO L225 Difference]: With dead ends: 42554 [2022-09-16 11:19:13,299 INFO L226 Difference]: Without dead ends: 41154 [2022-09-16 11:19:13,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:19:13,300 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 133 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:19:13,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 325 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:19:13,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41154 states. [2022-09-16 11:19:14,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41154 to 34733. [2022-09-16 11:19:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34733 states, 34670 states have (on average 3.4783674646668588) internal successors, (120595), 34732 states have internal predecessors, (120595), 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) [2022-09-16 11:19:14,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34733 states to 34733 states and 120595 transitions. [2022-09-16 11:19:14,724 INFO L78 Accepts]: Start accepts. Automaton has 34733 states and 120595 transitions. Word has length 58 [2022-09-16 11:19:14,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:19:14,724 INFO L495 AbstractCegarLoop]: Abstraction has 34733 states and 120595 transitions. [2022-09-16 11:19:14,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 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) [2022-09-16 11:19:14,724 INFO L276 IsEmpty]: Start isEmpty. Operand 34733 states and 120595 transitions. [2022-09-16 11:19:14,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 11:19:14,730 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:19:14,730 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:19:14,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-09-16 11:19:14,731 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:19:14,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:19:14,731 INFO L85 PathProgramCache]: Analyzing trace with hash 414305984, now seen corresponding path program 1 times [2022-09-16 11:19:14,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:19:14,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516024265] [2022-09-16 11:19:14,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:19:14,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:19:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:19:14,776 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-09-16 11:19:14,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:19:14,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516024265] [2022-09-16 11:19:14,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516024265] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:19:14,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:19:14,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:19:14,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218067537] [2022-09-16 11:19:14,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:19:14,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:19:14,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:19:14,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:19:14,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:19:14,778 INFO L87 Difference]: Start difference. First operand 34733 states and 120595 transitions. Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-09-16 11:19:15,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:19:15,044 INFO L93 Difference]: Finished difference Result 36536 states and 125528 transitions. [2022-09-16 11:19:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:19:15,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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 63 [2022-09-16 11:19:15,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:19:15,169 INFO L225 Difference]: With dead ends: 36536 [2022-09-16 11:19:15,169 INFO L226 Difference]: Without dead ends: 36536 [2022-09-16 11:19:15,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:19:15,170 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 62 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:19:15,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 219 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:19:15,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36536 states. [2022-09-16 11:19:16,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36536 to 32915. [2022-09-16 11:19:16,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32915 states, 32868 states have (on average 3.4748995983935744) internal successors, (114213), 32914 states have internal predecessors, (114213), 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) [2022-09-16 11:19:16,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32915 states to 32915 states and 114213 transitions. [2022-09-16 11:19:16,822 INFO L78 Accepts]: Start accepts. Automaton has 32915 states and 114213 transitions. Word has length 63 [2022-09-16 11:19:16,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:19:16,822 INFO L495 AbstractCegarLoop]: Abstraction has 32915 states and 114213 transitions. [2022-09-16 11:19:16,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-09-16 11:19:16,823 INFO L276 IsEmpty]: Start isEmpty. Operand 32915 states and 114213 transitions. [2022-09-16 11:19:16,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 11:19:16,849 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:19:16,850 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:19:16,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-09-16 11:19:16,850 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:19:16,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:19:16,850 INFO L85 PathProgramCache]: Analyzing trace with hash 414305985, now seen corresponding path program 1 times [2022-09-16 11:19:16,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:19:16,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451812030] [2022-09-16 11:19:16,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:19:16,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:19:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:19:16,931 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-09-16 11:19:16,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:19:16,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451812030] [2022-09-16 11:19:16,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451812030] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:19:16,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632136119] [2022-09-16 11:19:16,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:19:16,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:19:16,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:19:16,933 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:19:16,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 11:19:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:19:17,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 11:19:17,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:19:17,078 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-09-16 11:19:17,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:19:17,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632136119] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:19:17,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:19:17,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-09-16 11:19:17,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951560111] [2022-09-16 11:19:17,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:19:17,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:19:17,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:19:17,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:19:17,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:19:17,079 INFO L87 Difference]: Start difference. First operand 32915 states and 114213 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-09-16 11:19:17,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:19:17,399 INFO L93 Difference]: Finished difference Result 31958 states and 110056 transitions. [2022-09-16 11:19:17,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:19:17,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 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 63 [2022-09-16 11:19:17,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:19:17,522 INFO L225 Difference]: With dead ends: 31958 [2022-09-16 11:19:17,522 INFO L226 Difference]: Without dead ends: 28658 [2022-09-16 11:19:17,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:19:17,524 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 131 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:19:17,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 211 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:19:17,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28658 states. [2022-09-16 11:19:18,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28658 to 26459. [2022-09-16 11:19:18,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26459 states, 26428 states have (on average 3.4750643257151506) internal successors, (91839), 26458 states have internal predecessors, (91839), 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) [2022-09-16 11:19:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26459 states to 26459 states and 91839 transitions. [2022-09-16 11:19:18,438 INFO L78 Accepts]: Start accepts. Automaton has 26459 states and 91839 transitions. Word has length 63 [2022-09-16 11:19:18,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:19:18,438 INFO L495 AbstractCegarLoop]: Abstraction has 26459 states and 91839 transitions. [2022-09-16 11:19:18,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-09-16 11:19:18,438 INFO L276 IsEmpty]: Start isEmpty. Operand 26459 states and 91839 transitions. [2022-09-16 11:19:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 11:19:18,443 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:19:18,444 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:19:18,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-09-16 11:19:18,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-09-16 11:19:18,660 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:19:18,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:19:18,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1539280425, now seen corresponding path program 1 times [2022-09-16 11:19:18,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:19:18,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397204603] [2022-09-16 11:19:18,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:19:18,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:19:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:19:18,698 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-09-16 11:19:18,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:19:18,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397204603] [2022-09-16 11:19:18,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397204603] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:19:18,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:19:18,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:19:18,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766481730] [2022-09-16 11:19:18,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:19:18,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:19:18,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:19:18,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:19:18,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:19:18,701 INFO L87 Difference]: Start difference. First operand 26459 states and 91839 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-09-16 11:19:19,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:19:19,434 INFO L93 Difference]: Finished difference Result 45766 states and 150615 transitions. [2022-09-16 11:19:19,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:19:19,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 63 [2022-09-16 11:19:19,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:19:19,643 INFO L225 Difference]: With dead ends: 45766 [2022-09-16 11:19:19,643 INFO L226 Difference]: Without dead ends: 43366 [2022-09-16 11:19:19,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:19:19,644 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 328 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:19:19,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 887 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:19:19,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43366 states. [2022-09-16 11:19:20,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43366 to 23997. [2022-09-16 11:19:20,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23997 states, 23966 states have (on average 3.457147625803221) internal successors, (82854), 23996 states have internal predecessors, (82854), 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) [2022-09-16 11:19:20,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23997 states to 23997 states and 82854 transitions. [2022-09-16 11:19:20,622 INFO L78 Accepts]: Start accepts. Automaton has 23997 states and 82854 transitions. Word has length 63 [2022-09-16 11:19:20,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:19:20,622 INFO L495 AbstractCegarLoop]: Abstraction has 23997 states and 82854 transitions. [2022-09-16 11:19:20,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-09-16 11:19:20,622 INFO L276 IsEmpty]: Start isEmpty. Operand 23997 states and 82854 transitions. [2022-09-16 11:19:20,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-09-16 11:19:20,630 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:19:20,630 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:19:20,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-09-16 11:19:20,631 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:19:20,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:19:20,631 INFO L85 PathProgramCache]: Analyzing trace with hash 428152970, now seen corresponding path program 1 times [2022-09-16 11:19:20,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:19:20,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119048068] [2022-09-16 11:19:20,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:19:20,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:19:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-16 11:19:20,649 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-16 11:19:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-16 11:19:20,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-16 11:19:20,678 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-16 11:19:20,678 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2022-09-16 11:19:20,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-09-16 11:19:20,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-09-16 11:19:20,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-09-16 11:19:20,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-09-16 11:19:20,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-09-16 11:19:20,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-09-16 11:19:20,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-09-16 11:19:20,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-09-16 11:19:20,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-09-16 11:19:20,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-09-16 11:19:20,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-09-16 11:19:20,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-09-16 11:19:20,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-09-16 11:19:20,681 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:19:20,682 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-09-16 11:19:20,682 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-09-16 11:19:20,704 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-16 11:19:20,708 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 120 transitions, 284 flow [2022-09-16 11:19:39,746 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 595284 states, 594277 states have (on average 5.125305202792637) internal successors, (3045851), 595283 states have internal predecessors, (3045851), 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) [2022-09-16 11:19:39,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:19:39,748 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@39e0c110, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:19:39,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-09-16 11:19:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand has 595284 states, 594277 states have (on average 5.125305202792637) internal successors, (3045851), 595283 states have internal predecessors, (3045851), 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) [2022-09-16 11:19:40,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-09-16 11:19:40,955 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:19:40,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:19:40,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [salethreadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, salethreadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-09-16 11:19:40,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:19:40,955 INFO L85 PathProgramCache]: Analyzing trace with hash 299423682, now seen corresponding path program 1 times [2022-09-16 11:19:40,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:19:40,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179532407] [2022-09-16 11:19:40,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:19:40,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:19:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:19:40,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:19:40,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:19:40,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179532407] [2022-09-16 11:19:40,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179532407] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:19:40,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:19:40,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:19:40,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336799333] [2022-09-16 11:19:40,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:19:40,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:19:40,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:19:40,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:19:40,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:19:42,163 INFO L87 Difference]: Start difference. First operand has 595284 states, 594277 states have (on average 5.125305202792637) internal successors, (3045851), 595283 states have internal predecessors, (3045851), 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 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-09-16 11:19:58,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:19:58,886 INFO L93 Difference]: Finished difference Result 574526 states and 2884549 transitions. [2022-09-16 11:19:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:19:58,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2022-09-16 11:19:58,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:20:12,874 INFO L225 Difference]: With dead ends: 574526 [2022-09-16 11:20:12,874 INFO L226 Difference]: Without dead ends: 568281 [2022-09-16 11:20:12,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:20:12,876 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 41 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:20:12,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 287 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:20:16,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568281 states.