./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:28:06,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:28:06,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:28:06,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:28:06,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:28:06,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:28:06,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:28:06,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:28:06,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:28:06,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:28:06,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:28:06,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:28:06,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:28:06,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:28:06,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:28:06,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:28:06,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:28:06,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:28:06,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:28:06,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:28:06,671 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:28:06,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:28:06,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:28:06,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:28:06,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:28:06,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:28:06,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:28:06,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:28:06,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:28:06,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:28:06,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:28:06,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:28:06,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:28:06,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:28:06,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:28:06,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:28:06,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:28:06,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:28:06,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:28:06,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:28:06,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:28:06,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:28:06,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:28:06,731 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:28:06,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:28:06,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:28:06,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:28:06,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:28:06,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:28:06,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:28:06,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:28:06,733 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:28:06,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:28:06,733 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:28:06,733 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:28:06,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:28:06,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:28:06,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:28:06,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:28:06,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:28:06,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:28:06,734 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:28:06,734 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:28:06,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:28:06,734 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:28:06,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:28:06,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:28:06,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:28:06,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:28:06,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:28:06,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:28:06,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:28:06,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:28:06,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:28:06,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:28:06,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:28:06,735 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef [2022-07-13 02:28:06,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:28:06,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:28:06,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:28:06,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:28:06,921 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:28:06,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2022-07-13 02:28:06,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4e5a48d0/a43a62838f284696aeac133add298e19/FLAG1a4a838a2 [2022-07-13 02:28:07,406 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:28:07,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2022-07-13 02:28:07,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4e5a48d0/a43a62838f284696aeac133add298e19/FLAG1a4a838a2 [2022-07-13 02:28:07,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4e5a48d0/a43a62838f284696aeac133add298e19 [2022-07-13 02:28:07,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:28:07,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:28:07,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:28:07,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:28:07,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:28:07,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:28:07" (1/1) ... [2022-07-13 02:28:07,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cd4a3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07, skipping insertion in model container [2022-07-13 02:28:07,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:28:07" (1/1) ... [2022-07-13 02:28:07,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:28:07,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:28:07,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i[41322,41335] [2022-07-13 02:28:07,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:28:07,841 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:28:07,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i[41322,41335] [2022-07-13 02:28:07,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:28:07,943 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:28:07,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07 WrapperNode [2022-07-13 02:28:07,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:28:07,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:28:07,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:28:07,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:28:07,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07" (1/1) ... [2022-07-13 02:28:07,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07" (1/1) ... [2022-07-13 02:28:07,992 INFO L137 Inliner]: procedures = 270, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 98 [2022-07-13 02:28:07,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:28:07,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:28:07,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:28:07,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:28:07,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07" (1/1) ... [2022-07-13 02:28:07,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07" (1/1) ... [2022-07-13 02:28:08,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07" (1/1) ... [2022-07-13 02:28:08,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07" (1/1) ... [2022-07-13 02:28:08,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07" (1/1) ... [2022-07-13 02:28:08,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07" (1/1) ... [2022-07-13 02:28:08,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07" (1/1) ... [2022-07-13 02:28:08,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:28:08,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:28:08,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:28:08,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:28:08,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07" (1/1) ... [2022-07-13 02:28:08,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:28:08,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:28:08,049 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) [2022-07-13 02:28:08,050 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 [2022-07-13 02:28:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:28:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:28:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:28:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:28:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:28:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:28:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 02:28:08,073 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 02:28:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:28:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:28:08,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:28:08,074 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 02:28:08,195 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:28:08,197 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:28:08,353 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:28:08,359 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:28:08,359 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-07-13 02:28:08,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:28:08 BoogieIcfgContainer [2022-07-13 02:28:08,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:28:08,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:28:08,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:28:08,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:28:08,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:28:07" (1/3) ... [2022-07-13 02:28:08,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6986cf6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:28:08, skipping insertion in model container [2022-07-13 02:28:08,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:28:07" (2/3) ... [2022-07-13 02:28:08,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6986cf6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:28:08, skipping insertion in model container [2022-07-13 02:28:08,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:28:08" (3/3) ... [2022-07-13 02:28:08,366 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_07-cond_racing2.i [2022-07-13 02:28:08,370 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:28:08,377 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:28:08,377 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-07-13 02:28:08,377 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:28:08,414 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-13 02:28:08,434 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:28:08,442 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 148 transitions, 304 flow [2022-07-13 02:28:08,444 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 148 transitions, 304 flow [2022-07-13 02:28:08,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 148 transitions, 304 flow [2022-07-13 02:28:08,504 INFO L129 PetriNetUnfolder]: 23/196 cut-off events. [2022-07-13 02:28:08,504 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-13 02:28:08,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 196 events. 23/196 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 463 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 93. Up to 6 conditions per place. [2022-07-13 02:28:08,515 INFO L116 LiptonReduction]: Number of co-enabled transitions 4176 [2022-07-13 02:28:12,294 INFO L131 LiptonReduction]: Checked pairs total: 6820 [2022-07-13 02:28:12,295 INFO L133 LiptonReduction]: Total number of compositions: 149 [2022-07-13 02:28:12,301 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 42 transitions, 92 flow [2022-07-13 02:28:12,340 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 224 states, 185 states have (on average 2.924324324324324) internal successors, (541), 223 states have internal predecessors, (541), 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) [2022-07-13 02:28:12,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:28:12,356 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c10cca, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@724f5a21 [2022-07-13 02:28:12,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-07-13 02:28:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 224 states, 185 states have (on average 2.924324324324324) internal successors, (541), 223 states have internal predecessors, (541), 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) [2022-07-13 02:28:12,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:28:12,366 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:12,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:28:12,367 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-07-13 02:28:12,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:12,370 INFO L85 PathProgramCache]: Analyzing trace with hash 18455, now seen corresponding path program 1 times [2022-07-13 02:28:12,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:12,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517699073] [2022-07-13 02:28:12,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:12,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:12,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:12,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:12,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517699073] [2022-07-13 02:28:12,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517699073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:12,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:12,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:28:12,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769931618] [2022-07-13 02:28:12,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:12,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:12,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:12,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:12,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:12,563 INFO L87 Difference]: Start difference. First operand has 224 states, 185 states have (on average 2.924324324324324) internal successors, (541), 223 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:28:12,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:12,630 INFO L93 Difference]: Finished difference Result 209 states and 393 transitions. [2022-07-13 02:28:12,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:12,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:28:12,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:12,642 INFO L225 Difference]: With dead ends: 209 [2022-07-13 02:28:12,643 INFO L226 Difference]: Without dead ends: 199 [2022-07-13 02:28:12,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:12,648 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:12,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 2 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:28:12,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-07-13 02:28:12,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-07-13 02:28:12,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 168 states have (on average 2.244047619047619) internal successors, (377), 198 states have internal predecessors, (377), 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) [2022-07-13 02:28:12,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 377 transitions. [2022-07-13 02:28:12,683 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 377 transitions. Word has length 2 [2022-07-13 02:28:12,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:12,684 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 377 transitions. [2022-07-13 02:28:12,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:28:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 377 transitions. [2022-07-13 02:28:12,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:28:12,684 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:12,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:28:12,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:28:12,685 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-07-13 02:28:12,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:12,685 INFO L85 PathProgramCache]: Analyzing trace with hash 18456, now seen corresponding path program 1 times [2022-07-13 02:28:12,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:12,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933392690] [2022-07-13 02:28:12,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:12,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:12,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:12,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:12,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933392690] [2022-07-13 02:28:12,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933392690] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:12,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:12,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:28:12,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480268483] [2022-07-13 02:28:12,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:12,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:12,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:12,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:12,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:12,730 INFO L87 Difference]: Start difference. First operand 199 states and 377 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:28:12,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:12,779 INFO L93 Difference]: Finished difference Result 170 states and 322 transitions. [2022-07-13 02:28:12,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:12,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:28:12,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:12,781 INFO L225 Difference]: With dead ends: 170 [2022-07-13 02:28:12,781 INFO L226 Difference]: Without dead ends: 170 [2022-07-13 02:28:12,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:12,782 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:12,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:28:12,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-07-13 02:28:12,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-07-13 02:28:12,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 150 states have (on average 2.1466666666666665) internal successors, (322), 169 states have internal predecessors, (322), 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) [2022-07-13 02:28:12,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 322 transitions. [2022-07-13 02:28:12,790 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 322 transitions. Word has length 2 [2022-07-13 02:28:12,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:12,790 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 322 transitions. [2022-07-13 02:28:12,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:28:12,791 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 322 transitions. [2022-07-13 02:28:12,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 02:28:12,791 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:12,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 02:28:12,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:28:12,792 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-07-13 02:28:12,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:12,792 INFO L85 PathProgramCache]: Analyzing trace with hash 549267993, now seen corresponding path program 1 times [2022-07-13 02:28:12,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:12,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763527312] [2022-07-13 02:28:12,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:12,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:12,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:12,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:12,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763527312] [2022-07-13 02:28:12,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763527312] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:28:12,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036004594] [2022-07-13 02:28:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:12,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:28:12,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:28:12,849 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) [2022-07-13 02:28:12,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:28:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:12,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:28:12,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:28:12,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:12,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:28:12,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:12,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036004594] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:28:12,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:28:12,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-07-13 02:28:12,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147021099] [2022-07-13 02:28:12,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:28:12,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 02:28:12,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:12,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 02:28:12,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:12,947 INFO L87 Difference]: Start difference. First operand 170 states and 322 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:12,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:12,988 INFO L93 Difference]: Finished difference Result 59 states and 97 transitions. [2022-07-13 02:28:12,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:28:12,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-13 02:28:12,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:12,988 INFO L225 Difference]: With dead ends: 59 [2022-07-13 02:28:12,989 INFO L226 Difference]: Without dead ends: 59 [2022-07-13 02:28:12,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:12,990 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 60 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:12,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 6 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:28:12,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-07-13 02:28:12,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-07-13 02:28:12,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 54 states have (on average 1.7962962962962963) internal successors, (97), 58 states have internal predecessors, (97), 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) [2022-07-13 02:28:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 97 transitions. [2022-07-13 02:28:12,993 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 97 transitions. Word has length 5 [2022-07-13 02:28:12,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:12,994 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 97 transitions. [2022-07-13 02:28:12,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:12,994 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 97 transitions. [2022-07-13 02:28:12,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:28:12,994 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:12,994 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-07-13 02:28:13,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 02:28:13,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:28:13,211 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-07-13 02:28:13,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:13,212 INFO L85 PathProgramCache]: Analyzing trace with hash -152561997, now seen corresponding path program 1 times [2022-07-13 02:28:13,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:13,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128237032] [2022-07-13 02:28:13,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:13,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:28:13,248 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:28:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:28:13,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:28:13,288 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:28:13,288 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2022-07-13 02:28:13,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-07-13 02:28:13,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-07-13 02:28:13,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-07-13 02:28:13,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-07-13 02:28:13,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-07-13 02:28:13,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining) [2022-07-13 02:28:13,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 15 remaining) [2022-07-13 02:28:13,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 15 remaining) [2022-07-13 02:28:13,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-07-13 02:28:13,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-07-13 02:28:13,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-07-13 02:28:13,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-07-13 02:28:13,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-07-13 02:28:13,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-07-13 02:28:13,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:28:13,294 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-13 02:28:13,296 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 02:28:13,297 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-13 02:28:13,315 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-13 02:28:13,322 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:28:13,323 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 186 transitions, 390 flow [2022-07-13 02:28:13,324 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 186 transitions, 390 flow [2022-07-13 02:28:13,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 169 places, 186 transitions, 390 flow [2022-07-13 02:28:13,364 INFO L129 PetriNetUnfolder]: 40/319 cut-off events. [2022-07-13 02:28:13,364 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-07-13 02:28:13,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 319 events. 40/319 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 966 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 198. Up to 9 conditions per place. [2022-07-13 02:28:13,373 INFO L116 LiptonReduction]: Number of co-enabled transitions 12312 [2022-07-13 02:28:17,010 INFO L131 LiptonReduction]: Checked pairs total: 28040 [2022-07-13 02:28:17,010 INFO L133 LiptonReduction]: Total number of compositions: 177 [2022-07-13 02:28:17,011 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 70 transitions, 158 flow [2022-07-13 02:28:17,119 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4800 states, 4571 states have (on average 3.8004812951214175) internal successors, (17372), 4799 states have internal predecessors, (17372), 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) [2022-07-13 02:28:17,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:28:17,124 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c10cca, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@724f5a21 [2022-07-13 02:28:17,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-07-13 02:28:17,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 4800 states, 4571 states have (on average 3.8004812951214175) internal successors, (17372), 4799 states have internal predecessors, (17372), 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) [2022-07-13 02:28:17,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:28:17,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:17,140 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:28:17,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-07-13 02:28:17,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:17,141 INFO L85 PathProgramCache]: Analyzing trace with hash 31281, now seen corresponding path program 1 times [2022-07-13 02:28:17,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:17,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957531348] [2022-07-13 02:28:17,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:17,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:17,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:17,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:17,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957531348] [2022-07-13 02:28:17,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957531348] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:17,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:17,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:28:17,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884840618] [2022-07-13 02:28:17,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:17,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:17,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:17,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:17,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:17,203 INFO L87 Difference]: Start difference. First operand has 4800 states, 4571 states have (on average 3.8004812951214175) internal successors, (17372), 4799 states have internal predecessors, (17372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:28:17,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:17,289 INFO L93 Difference]: Finished difference Result 4527 states and 12632 transitions. [2022-07-13 02:28:17,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:17,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:28:17,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:17,313 INFO L225 Difference]: With dead ends: 4527 [2022-07-13 02:28:17,314 INFO L226 Difference]: Without dead ends: 4496 [2022-07-13 02:28:17,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:17,315 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:17,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 10 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:28:17,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4496 states. [2022-07-13 02:28:17,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4496 to 4496. [2022-07-13 02:28:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 4302 states have (on average 2.919339841933984) internal successors, (12559), 4495 states have internal predecessors, (12559), 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) [2022-07-13 02:28:17,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 12559 transitions. [2022-07-13 02:28:17,452 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 12559 transitions. Word has length 2 [2022-07-13 02:28:17,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:17,452 INFO L495 AbstractCegarLoop]: Abstraction has 4496 states and 12559 transitions. [2022-07-13 02:28:17,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:28:17,452 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 12559 transitions. [2022-07-13 02:28:17,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:28:17,453 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:17,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:28:17,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 02:28:17,453 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-07-13 02:28:17,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash 31283, now seen corresponding path program 1 times [2022-07-13 02:28:17,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:17,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148398457] [2022-07-13 02:28:17,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:17,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:17,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:17,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:17,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148398457] [2022-07-13 02:28:17,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148398457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:17,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:17,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:28:17,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713100132] [2022-07-13 02:28:17,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:17,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:17,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:17,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:17,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:17,478 INFO L87 Difference]: Start difference. First operand 4496 states and 12559 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:28:17,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:17,564 INFO L93 Difference]: Finished difference Result 4463 states and 12496 transitions. [2022-07-13 02:28:17,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:17,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:28:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:17,586 INFO L225 Difference]: With dead ends: 4463 [2022-07-13 02:28:17,586 INFO L226 Difference]: Without dead ends: 4463 [2022-07-13 02:28:17,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:17,587 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 18 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:17,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 20 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:28:17,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4463 states. [2022-07-13 02:28:17,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4463 to 4463. [2022-07-13 02:28:17,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4463 states, 4280 states have (on average 2.919626168224299) internal successors, (12496), 4462 states have internal predecessors, (12496), 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) [2022-07-13 02:28:17,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4463 states to 4463 states and 12496 transitions. [2022-07-13 02:28:17,680 INFO L78 Accepts]: Start accepts. Automaton has 4463 states and 12496 transitions. Word has length 2 [2022-07-13 02:28:17,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:17,681 INFO L495 AbstractCegarLoop]: Abstraction has 4463 states and 12496 transitions. [2022-07-13 02:28:17,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:28:17,681 INFO L276 IsEmpty]: Start isEmpty. Operand 4463 states and 12496 transitions. [2022-07-13 02:28:17,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:28:17,681 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:17,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:28:17,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 02:28:17,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-07-13 02:28:17,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:17,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1200381231, now seen corresponding path program 1 times [2022-07-13 02:28:17,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:17,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3260941] [2022-07-13 02:28:17,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:17,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:17,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:17,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:17,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3260941] [2022-07-13 02:28:17,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3260941] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:17,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:17,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:28:17,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198483736] [2022-07-13 02:28:17,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:17,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:17,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:17,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:17,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:17,735 INFO L87 Difference]: Start difference. First operand 4463 states and 12496 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:17,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:17,838 INFO L93 Difference]: Finished difference Result 5316 states and 13887 transitions. [2022-07-13 02:28:17,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:17,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-13 02:28:17,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:17,860 INFO L225 Difference]: With dead ends: 5316 [2022-07-13 02:28:17,861 INFO L226 Difference]: Without dead ends: 5292 [2022-07-13 02:28:17,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:17,861 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 38 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:17,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 17 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:28:17,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5292 states. [2022-07-13 02:28:17,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5292 to 4814. [2022-07-13 02:28:17,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4814 states, 4657 states have (on average 2.8056688855486365) internal successors, (13066), 4813 states have internal predecessors, (13066), 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) [2022-07-13 02:28:17,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4814 states to 4814 states and 13066 transitions. [2022-07-13 02:28:17,979 INFO L78 Accepts]: Start accepts. Automaton has 4814 states and 13066 transitions. Word has length 6 [2022-07-13 02:28:17,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:17,979 INFO L495 AbstractCegarLoop]: Abstraction has 4814 states and 13066 transitions. [2022-07-13 02:28:17,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:17,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4814 states and 13066 transitions. [2022-07-13 02:28:17,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:28:17,980 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:17,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:28:17,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 02:28:17,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-07-13 02:28:17,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:17,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1200630768, now seen corresponding path program 1 times [2022-07-13 02:28:17,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:17,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131893838] [2022-07-13 02:28:17,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:17,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:17,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:17,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:17,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131893838] [2022-07-13 02:28:17,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131893838] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:28:17,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409627336] [2022-07-13 02:28:17,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:17,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:28:17,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:28:18,000 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) [2022-07-13 02:28:18,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 02:28:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:18,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:28:18,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:28:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:18,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:28:18,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:18,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409627336] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:28:18,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:28:18,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-07-13 02:28:18,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087406057] [2022-07-13 02:28:18,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:28:18,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 02:28:18,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:18,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 02:28:18,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:18,078 INFO L87 Difference]: Start difference. First operand 4814 states and 13066 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-07-13 02:28:18,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:18,192 INFO L93 Difference]: Finished difference Result 1451 states and 3863 transitions. [2022-07-13 02:28:18,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:28:18,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-13 02:28:18,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:18,197 INFO L225 Difference]: With dead ends: 1451 [2022-07-13 02:28:18,198 INFO L226 Difference]: Without dead ends: 1451 [2022-07-13 02:28:18,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:18,198 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 251 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:18,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 38 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:28:18,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-07-13 02:28:18,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1451. [2022-07-13 02:28:18,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1409 states have (on average 2.7416607523066006) internal successors, (3863), 1450 states have internal predecessors, (3863), 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) [2022-07-13 02:28:18,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 3863 transitions. [2022-07-13 02:28:18,221 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 3863 transitions. Word has length 6 [2022-07-13 02:28:18,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:18,221 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 3863 transitions. [2022-07-13 02:28:18,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-07-13 02:28:18,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 3863 transitions. [2022-07-13 02:28:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:28:18,222 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:18,222 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:28:18,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 02:28:18,435 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,SelfDestructingSolverStorable7 [2022-07-13 02:28:18,435 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-07-13 02:28:18,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:18,436 INFO L85 PathProgramCache]: Analyzing trace with hash 495581956, now seen corresponding path program 1 times [2022-07-13 02:28:18,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:18,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669555752] [2022-07-13 02:28:18,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:18,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:18,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:18,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669555752] [2022-07-13 02:28:18,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669555752] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:18,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:18,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:28:18,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690053690] [2022-07-13 02:28:18,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:18,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:18,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:18,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:18,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:18,468 INFO L87 Difference]: Start difference. First operand 1451 states and 3863 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:18,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:18,497 INFO L93 Difference]: Finished difference Result 1219 states and 3199 transitions. [2022-07-13 02:28:18,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:18,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-13 02:28:18,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:18,509 INFO L225 Difference]: With dead ends: 1219 [2022-07-13 02:28:18,510 INFO L226 Difference]: Without dead ends: 1219 [2022-07-13 02:28:18,510 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 [2022-07-13 02:28:18,511 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:18,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 8 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:28:18,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2022-07-13 02:28:18,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1219. [2022-07-13 02:28:18,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1198 states have (on average 2.6702838063439067) internal successors, (3199), 1218 states have internal predecessors, (3199), 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) [2022-07-13 02:28:18,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 3199 transitions. [2022-07-13 02:28:18,532 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 3199 transitions. Word has length 9 [2022-07-13 02:28:18,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:18,533 INFO L495 AbstractCegarLoop]: Abstraction has 1219 states and 3199 transitions. [2022-07-13 02:28:18,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:18,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 3199 transitions. [2022-07-13 02:28:18,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 02:28:18,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:18,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:18,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 02:28:18,536 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-07-13 02:28:18,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:18,536 INFO L85 PathProgramCache]: Analyzing trace with hash 919684167, now seen corresponding path program 1 times [2022-07-13 02:28:18,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:18,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858525310] [2022-07-13 02:28:18,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:18,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:18,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:18,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:18,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858525310] [2022-07-13 02:28:18,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858525310] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:18,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:18,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:28:18,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499840906] [2022-07-13 02:28:18,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:18,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:28:18,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:18,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:28:18,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:28:18,570 INFO L87 Difference]: Start difference. First operand 1219 states and 3199 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-07-13 02:28:18,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:18,679 INFO L93 Difference]: Finished difference Result 1515 states and 3901 transitions. [2022-07-13 02:28:18,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:28:18,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2022-07-13 02:28:18,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:18,683 INFO L225 Difference]: With dead ends: 1515 [2022-07-13 02:28:18,683 INFO L226 Difference]: Without dead ends: 1515 [2022-07-13 02:28:18,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:18,684 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 91 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:18,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 28 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:28:18,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2022-07-13 02:28:18,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1335. [2022-07-13 02:28:18,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1317 states have (on average 2.662870159453303) internal successors, (3507), 1334 states have internal predecessors, (3507), 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) [2022-07-13 02:28:18,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 3507 transitions. [2022-07-13 02:28:18,709 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 3507 transitions. Word has length 10 [2022-07-13 02:28:18,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:18,710 INFO L495 AbstractCegarLoop]: Abstraction has 1335 states and 3507 transitions. [2022-07-13 02:28:18,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-07-13 02:28:18,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 3507 transitions. [2022-07-13 02:28:18,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:28:18,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:18,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:18,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 02:28:18,711 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-07-13 02:28:18,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:18,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1554567568, now seen corresponding path program 1 times [2022-07-13 02:28:18,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:18,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252737432] [2022-07-13 02:28:18,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:18,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:18,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:18,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252737432] [2022-07-13 02:28:18,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252737432] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:18,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:18,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:28:18,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326527449] [2022-07-13 02:28:18,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:18,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:28:18,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:18,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:28:18,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:28:18,740 INFO L87 Difference]: Start difference. First operand 1335 states and 3507 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:18,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:18,882 INFO L93 Difference]: Finished difference Result 1426 states and 3630 transitions. [2022-07-13 02:28:18,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:28:18,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-13 02:28:18,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:18,886 INFO L225 Difference]: With dead ends: 1426 [2022-07-13 02:28:18,886 INFO L226 Difference]: Without dead ends: 1426 [2022-07-13 02:28:18,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:18,886 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 72 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:18,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 38 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:28:18,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2022-07-13 02:28:18,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1306. [2022-07-13 02:28:18,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1291 states have (on average 2.6134779240898527) internal successors, (3374), 1305 states have internal predecessors, (3374), 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) [2022-07-13 02:28:18,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 3374 transitions. [2022-07-13 02:28:18,907 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 3374 transitions. Word has length 11 [2022-07-13 02:28:18,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:18,907 INFO L495 AbstractCegarLoop]: Abstraction has 1306 states and 3374 transitions. [2022-07-13 02:28:18,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:18,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 3374 transitions. [2022-07-13 02:28:18,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:28:18,908 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:18,908 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-07-13 02:28:18,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 02:28:18,909 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-07-13 02:28:18,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:18,909 INFO L85 PathProgramCache]: Analyzing trace with hash -487060951, now seen corresponding path program 1 times [2022-07-13 02:28:18,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:18,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706792257] [2022-07-13 02:28:18,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:18,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:28:18,919 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:28:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:28:18,931 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:28:18,931 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:28:18,931 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2022-07-13 02:28:18,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2022-07-13 02:28:18,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2022-07-13 02:28:18,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2022-07-13 02:28:18,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2022-07-13 02:28:18,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2022-07-13 02:28:18,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2022-07-13 02:28:18,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2022-07-13 02:28:18,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2022-07-13 02:28:18,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2022-07-13 02:28:18,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2022-07-13 02:28:18,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2022-07-13 02:28:18,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2022-07-13 02:28:18,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2022-07-13 02:28:18,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2022-07-13 02:28:18,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2022-07-13 02:28:18,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2022-07-13 02:28:18,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2022-07-13 02:28:18,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2022-07-13 02:28:18,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 02:28:18,935 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:18,936 WARN L231 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 02:28:18,936 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-07-13 02:28:18,955 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-13 02:28:18,959 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:28:18,959 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 202 places, 224 transitions, 478 flow [2022-07-13 02:28:18,959 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 202 places, 224 transitions, 478 flow [2022-07-13 02:28:18,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 202 places, 224 transitions, 478 flow [2022-07-13 02:28:19,018 INFO L129 PetriNetUnfolder]: 62/483 cut-off events. [2022-07-13 02:28:19,018 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-07-13 02:28:19,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 511 conditions, 483 events. 62/483 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1662 event pairs, 1 based on Foata normal form. 0/377 useless extension candidates. Maximal degree in co-relation 327. Up to 16 conditions per place. [2022-07-13 02:28:19,043 INFO L116 LiptonReduction]: Number of co-enabled transitions 22680 [2022-07-13 02:28:22,739 INFO L131 LiptonReduction]: Checked pairs total: 53847 [2022-07-13 02:28:22,740 INFO L133 LiptonReduction]: Total number of compositions: 204 [2022-07-13 02:28:22,740 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 93 transitions, 216 flow [2022-07-13 02:28:24,949 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 78896 states, 77627 states have (on average 4.972084455150914) internal successors, (385968), 78895 states have internal predecessors, (385968), 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) [2022-07-13 02:28:24,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:28:24,951 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c10cca, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@724f5a21 [2022-07-13 02:28:24,951 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2022-07-13 02:28:25,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 78896 states, 77627 states have (on average 4.972084455150914) internal successors, (385968), 78895 states have internal predecessors, (385968), 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) [2022-07-13 02:28:25,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:28:25,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:25,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:28:25,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:28:25,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:25,244 INFO L85 PathProgramCache]: Analyzing trace with hash 46190, now seen corresponding path program 1 times [2022-07-13 02:28:25,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:25,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468572776] [2022-07-13 02:28:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:25,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:25,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:25,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:25,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468572776] [2022-07-13 02:28:25,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468572776] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:25,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:25,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:28:25,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248424614] [2022-07-13 02:28:25,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:25,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:25,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:25,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:25,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:25,411 INFO L87 Difference]: Start difference. First operand has 78896 states, 77627 states have (on average 4.972084455150914) internal successors, (385968), 78895 states have internal predecessors, (385968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:28:26,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:26,386 INFO L93 Difference]: Finished difference Result 74527 states and 275778 transitions. [2022-07-13 02:28:26,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:26,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:28:26,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:27,516 INFO L225 Difference]: With dead ends: 74527 [2022-07-13 02:28:27,516 INFO L226 Difference]: Without dead ends: 74396 [2022-07-13 02:28:27,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:27,517 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 71 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:27,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 11 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:28:27,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74396 states. [2022-07-13 02:28:29,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74396 to 74396. [2022-07-13 02:28:29,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74396 states, 73291 states have (on average 3.7568732859423393) internal successors, (275345), 74395 states have internal predecessors, (275345), 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) [2022-07-13 02:28:30,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74396 states to 74396 states and 275345 transitions. [2022-07-13 02:28:30,486 INFO L78 Accepts]: Start accepts. Automaton has 74396 states and 275345 transitions. Word has length 2 [2022-07-13 02:28:30,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:30,486 INFO L495 AbstractCegarLoop]: Abstraction has 74396 states and 275345 transitions. [2022-07-13 02:28:30,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:28:30,487 INFO L276 IsEmpty]: Start isEmpty. Operand 74396 states and 275345 transitions. [2022-07-13 02:28:30,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:28:30,487 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:30,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:28:30,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 02:28:30,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:28:30,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:30,487 INFO L85 PathProgramCache]: Analyzing trace with hash 46191, now seen corresponding path program 1 times [2022-07-13 02:28:30,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:30,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515853723] [2022-07-13 02:28:30,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:30,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:30,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:30,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515853723] [2022-07-13 02:28:30,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515853723] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:30,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:30,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:28:30,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867501845] [2022-07-13 02:28:30,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:30,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:30,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:30,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:30,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:30,692 INFO L87 Difference]: Start difference. First operand 74396 states and 275345 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:28:31,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:31,400 INFO L93 Difference]: Finished difference Result 74363 states and 275282 transitions. [2022-07-13 02:28:31,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:31,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:28:31,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:31,766 INFO L225 Difference]: With dead ends: 74363 [2022-07-13 02:28:31,766 INFO L226 Difference]: Without dead ends: 74363 [2022-07-13 02:28:31,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:31,767 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:31,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 22 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:28:32,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74363 states. [2022-07-13 02:28:33,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74363 to 74363. [2022-07-13 02:28:34,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74363 states, 73269 states have (on average 3.757141492309162) internal successors, (275282), 74362 states have internal predecessors, (275282), 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) [2022-07-13 02:28:34,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74363 states to 74363 states and 275282 transitions. [2022-07-13 02:28:34,364 INFO L78 Accepts]: Start accepts. Automaton has 74363 states and 275282 transitions. Word has length 2 [2022-07-13 02:28:34,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:34,364 INFO L495 AbstractCegarLoop]: Abstraction has 74363 states and 275282 transitions. [2022-07-13 02:28:34,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:28:34,364 INFO L276 IsEmpty]: Start isEmpty. Operand 74363 states and 275282 transitions. [2022-07-13 02:28:34,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:28:34,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:34,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:28:34,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 02:28:34,365 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:28:34,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:34,365 INFO L85 PathProgramCache]: Analyzing trace with hash -262703928, now seen corresponding path program 1 times [2022-07-13 02:28:34,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:34,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780389592] [2022-07-13 02:28:34,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:34,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:34,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:34,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:34,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780389592] [2022-07-13 02:28:34,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780389592] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:28:34,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223998424] [2022-07-13 02:28:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:34,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:28:34,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:28:34,388 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) [2022-07-13 02:28:34,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 02:28:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:34,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:28:34,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:28:34,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:34,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:28:34,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:34,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223998424] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:28:34,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:28:34,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-07-13 02:28:34,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090073049] [2022-07-13 02:28:34,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:28:34,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 02:28:34,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:34,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 02:28:34,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:34,479 INFO L87 Difference]: Start difference. First operand 74363 states and 275282 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-07-13 02:28:35,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:35,083 INFO L93 Difference]: Finished difference Result 25923 states and 93407 transitions. [2022-07-13 02:28:35,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:28:35,084 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-13 02:28:35,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:35,300 INFO L225 Difference]: With dead ends: 25923 [2022-07-13 02:28:35,300 INFO L226 Difference]: Without dead ends: 25923 [2022-07-13 02:28:35,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:35,301 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 268 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:35,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 54 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:28:35,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25923 states. [2022-07-13 02:28:35,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25923 to 25923. [2022-07-13 02:28:35,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25923 states, 25648 states have (on average 3.6418824079850283) internal successors, (93407), 25922 states have internal predecessors, (93407), 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) [2022-07-13 02:28:36,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25923 states to 25923 states and 93407 transitions. [2022-07-13 02:28:36,176 INFO L78 Accepts]: Start accepts. Automaton has 25923 states and 93407 transitions. Word has length 6 [2022-07-13 02:28:36,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:36,177 INFO L495 AbstractCegarLoop]: Abstraction has 25923 states and 93407 transitions. [2022-07-13 02:28:36,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-07-13 02:28:36,177 INFO L276 IsEmpty]: Start isEmpty. Operand 25923 states and 93407 transitions. [2022-07-13 02:28:36,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 02:28:36,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:36,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:36,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 02:28:36,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:28:36,388 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:28:36,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:36,388 INFO L85 PathProgramCache]: Analyzing trace with hash 455926753, now seen corresponding path program 1 times [2022-07-13 02:28:36,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:36,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647505815] [2022-07-13 02:28:36,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:36,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:36,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:36,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:36,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647505815] [2022-07-13 02:28:36,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647505815] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:36,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:36,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:28:36,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309157516] [2022-07-13 02:28:36,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:36,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:36,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:36,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:36,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:36,416 INFO L87 Difference]: Start difference. First operand 25923 states and 93407 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:36,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:36,595 INFO L93 Difference]: Finished difference Result 24487 states and 88017 transitions. [2022-07-13 02:28:36,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:36,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-13 02:28:36,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:36,698 INFO L225 Difference]: With dead ends: 24487 [2022-07-13 02:28:36,698 INFO L226 Difference]: Without dead ends: 24487 [2022-07-13 02:28:36,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:36,699 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:36,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 15 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:28:36,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24487 states. [2022-07-13 02:28:37,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24487 to 24487. [2022-07-13 02:28:37,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24487 states, 24232 states have (on average 3.6322631231429514) internal successors, (88017), 24486 states have internal predecessors, (88017), 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) [2022-07-13 02:28:37,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24487 states to 24487 states and 88017 transitions. [2022-07-13 02:28:37,629 INFO L78 Accepts]: Start accepts. Automaton has 24487 states and 88017 transitions. Word has length 7 [2022-07-13 02:28:37,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:37,629 INFO L495 AbstractCegarLoop]: Abstraction has 24487 states and 88017 transitions. [2022-07-13 02:28:37,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:37,629 INFO L276 IsEmpty]: Start isEmpty. Operand 24487 states and 88017 transitions. [2022-07-13 02:28:37,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:28:37,630 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:37,630 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:28:37,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 02:28:37,630 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:28:37,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:37,631 INFO L85 PathProgramCache]: Analyzing trace with hash -781381920, now seen corresponding path program 1 times [2022-07-13 02:28:37,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:37,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030441159] [2022-07-13 02:28:37,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:37,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:37,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:37,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:37,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030441159] [2022-07-13 02:28:37,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030441159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:37,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:37,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:28:37,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263425881] [2022-07-13 02:28:37,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:37,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:37,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:37,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:37,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:37,666 INFO L87 Difference]: Start difference. First operand 24487 states and 88017 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:37,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:37,798 INFO L93 Difference]: Finished difference Result 20377 states and 72609 transitions. [2022-07-13 02:28:37,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:37,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-13 02:28:37,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:37,861 INFO L225 Difference]: With dead ends: 20377 [2022-07-13 02:28:37,861 INFO L226 Difference]: Without dead ends: 20377 [2022-07-13 02:28:37,861 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 [2022-07-13 02:28:37,862 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:37,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 10 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:28:37,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20377 states. [2022-07-13 02:28:38,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20377 to 20377. [2022-07-13 02:28:38,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20377 states, 20260 states have (on average 3.5838598223099702) internal successors, (72609), 20376 states have internal predecessors, (72609), 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) [2022-07-13 02:28:38,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20377 states to 20377 states and 72609 transitions. [2022-07-13 02:28:38,322 INFO L78 Accepts]: Start accepts. Automaton has 20377 states and 72609 transitions. Word has length 9 [2022-07-13 02:28:38,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:38,323 INFO L495 AbstractCegarLoop]: Abstraction has 20377 states and 72609 transitions. [2022-07-13 02:28:38,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:38,323 INFO L276 IsEmpty]: Start isEmpty. Operand 20377 states and 72609 transitions. [2022-07-13 02:28:38,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:28:38,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:38,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:38,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 02:28:38,324 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:28:38,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:38,324 INFO L85 PathProgramCache]: Analyzing trace with hash 850590954, now seen corresponding path program 1 times [2022-07-13 02:28:38,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:38,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464994263] [2022-07-13 02:28:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:38,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:38,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:38,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:38,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464994263] [2022-07-13 02:28:38,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464994263] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:38,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:38,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:28:38,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371614388] [2022-07-13 02:28:38,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:38,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:28:38,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:38,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:28:38,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:28:38,348 INFO L87 Difference]: Start difference. First operand 20377 states and 72609 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:39,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:39,006 INFO L93 Difference]: Finished difference Result 28657 states and 97752 transitions. [2022-07-13 02:28:39,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:28:39,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-13 02:28:39,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:39,123 INFO L225 Difference]: With dead ends: 28657 [2022-07-13 02:28:39,123 INFO L226 Difference]: Without dead ends: 28657 [2022-07-13 02:28:39,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:39,124 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 98 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:39,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 70 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:28:39,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28657 states. [2022-07-13 02:28:39,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28657 to 26852. [2022-07-13 02:28:39,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26852 states, 26742 states have (on average 3.5183606312168125) internal successors, (94088), 26851 states have internal predecessors, (94088), 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) [2022-07-13 02:28:40,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26852 states to 26852 states and 94088 transitions. [2022-07-13 02:28:40,068 INFO L78 Accepts]: Start accepts. Automaton has 26852 states and 94088 transitions. Word has length 11 [2022-07-13 02:28:40,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:40,068 INFO L495 AbstractCegarLoop]: Abstraction has 26852 states and 94088 transitions. [2022-07-13 02:28:40,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:40,068 INFO L276 IsEmpty]: Start isEmpty. Operand 26852 states and 94088 transitions. [2022-07-13 02:28:40,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:28:40,069 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:40,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:40,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 02:28:40,069 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:28:40,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:40,069 INFO L85 PathProgramCache]: Analyzing trace with hash 850590955, now seen corresponding path program 1 times [2022-07-13 02:28:40,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:40,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145497488] [2022-07-13 02:28:40,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:40,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:40,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:40,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145497488] [2022-07-13 02:28:40,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145497488] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:40,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:40,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:28:40,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307022163] [2022-07-13 02:28:40,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:40,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:28:40,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:40,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:28:40,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:28:40,130 INFO L87 Difference]: Start difference. First operand 26852 states and 94088 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:40,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:40,512 INFO L93 Difference]: Finished difference Result 30117 states and 99770 transitions. [2022-07-13 02:28:40,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:28:40,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-13 02:28:40,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:40,598 INFO L225 Difference]: With dead ends: 30117 [2022-07-13 02:28:40,598 INFO L226 Difference]: Without dead ends: 30117 [2022-07-13 02:28:40,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:40,599 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 101 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:40,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 54 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:28:40,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30117 states. [2022-07-13 02:28:41,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30117 to 28502. [2022-07-13 02:28:41,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28502 states, 28407 states have (on average 3.3938113845179005) internal successors, (96408), 28501 states have internal predecessors, (96408), 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) [2022-07-13 02:28:41,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28502 states to 28502 states and 96408 transitions. [2022-07-13 02:28:41,523 INFO L78 Accepts]: Start accepts. Automaton has 28502 states and 96408 transitions. Word has length 11 [2022-07-13 02:28:41,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:41,523 INFO L495 AbstractCegarLoop]: Abstraction has 28502 states and 96408 transitions. [2022-07-13 02:28:41,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:41,523 INFO L276 IsEmpty]: Start isEmpty. Operand 28502 states and 96408 transitions. [2022-07-13 02:28:41,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-13 02:28:41,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:41,524 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:41,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 02:28:41,525 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:28:41,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:41,525 INFO L85 PathProgramCache]: Analyzing trace with hash 956829048, now seen corresponding path program 1 times [2022-07-13 02:28:41,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:41,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859452089] [2022-07-13 02:28:41,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:41,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:41,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 02:28:41,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:41,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859452089] [2022-07-13 02:28:41,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859452089] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:41,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:41,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:28:41,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421674709] [2022-07-13 02:28:41,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:41,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:28:41,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:41,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:28:41,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:28:41,559 INFO L87 Difference]: Start difference. First operand 28502 states and 96408 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:41,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:41,945 INFO L93 Difference]: Finished difference Result 33595 states and 113605 transitions. [2022-07-13 02:28:41,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:28:41,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-13 02:28:41,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:42,068 INFO L225 Difference]: With dead ends: 33595 [2022-07-13 02:28:42,068 INFO L226 Difference]: Without dead ends: 33595 [2022-07-13 02:28:42,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:42,069 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 94 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:42,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 79 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:28:42,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33595 states. [2022-07-13 02:28:43,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33595 to 31410. [2022-07-13 02:28:43,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31410 states, 31319 states have (on average 3.4620198601487915) internal successors, (108427), 31409 states have internal predecessors, (108427), 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) [2022-07-13 02:28:43,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31410 states to 31410 states and 108427 transitions. [2022-07-13 02:28:43,222 INFO L78 Accepts]: Start accepts. Automaton has 31410 states and 108427 transitions. Word has length 15 [2022-07-13 02:28:43,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:43,222 INFO L495 AbstractCegarLoop]: Abstraction has 31410 states and 108427 transitions. [2022-07-13 02:28:43,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:43,222 INFO L276 IsEmpty]: Start isEmpty. Operand 31410 states and 108427 transitions. [2022-07-13 02:28:43,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-13 02:28:43,223 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:43,223 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:43,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 02:28:43,224 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:28:43,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:43,224 INFO L85 PathProgramCache]: Analyzing trace with hash 956828993, now seen corresponding path program 1 times [2022-07-13 02:28:43,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:43,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190374533] [2022-07-13 02:28:43,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:43,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 02:28:43,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:43,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190374533] [2022-07-13 02:28:43,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190374533] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:43,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:43,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:28:43,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897596637] [2022-07-13 02:28:43,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:43,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:28:43,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:43,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:28:43,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:28:43,261 INFO L87 Difference]: Start difference. First operand 31410 states and 108427 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:43,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:43,614 INFO L93 Difference]: Finished difference Result 32143 states and 107155 transitions. [2022-07-13 02:28:43,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:28:43,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-13 02:28:43,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:43,742 INFO L225 Difference]: With dead ends: 32143 [2022-07-13 02:28:43,742 INFO L226 Difference]: Without dead ends: 32143 [2022-07-13 02:28:43,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:43,748 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 99 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:43,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 63 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:28:43,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32143 states. [2022-07-13 02:28:44,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32143 to 29499. [2022-07-13 02:28:44,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29499 states, 29414 states have (on average 3.3952879581151834) internal successors, (99869), 29498 states have internal predecessors, (99869), 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) [2022-07-13 02:28:44,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29499 states to 29499 states and 99869 transitions. [2022-07-13 02:28:44,710 INFO L78 Accepts]: Start accepts. Automaton has 29499 states and 99869 transitions. Word has length 15 [2022-07-13 02:28:44,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:44,711 INFO L495 AbstractCegarLoop]: Abstraction has 29499 states and 99869 transitions. [2022-07-13 02:28:44,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:44,711 INFO L276 IsEmpty]: Start isEmpty. Operand 29499 states and 99869 transitions. [2022-07-13 02:28:44,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-13 02:28:44,712 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:44,712 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-07-13 02:28:44,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 02:28:44,712 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:28:44,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:44,713 INFO L85 PathProgramCache]: Analyzing trace with hash -780015386, now seen corresponding path program 1 times [2022-07-13 02:28:44,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:44,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703880158] [2022-07-13 02:28:44,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:44,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:28:44,728 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:28:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:28:44,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:28:44,753 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:28:44,753 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2022-07-13 02:28:44,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2022-07-13 02:28:44,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2022-07-13 02:28:44,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2022-07-13 02:28:44,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2022-07-13 02:28:44,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2022-07-13 02:28:44,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-13 02:28:44,755 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:44,755 WARN L231 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 02:28:44,755 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-07-13 02:28:44,766 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-13 02:28:44,769 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:28:44,769 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 235 places, 262 transitions, 568 flow [2022-07-13 02:28:44,769 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 235 places, 262 transitions, 568 flow [2022-07-13 02:28:44,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 235 places, 262 transitions, 568 flow [2022-07-13 02:28:44,832 INFO L129 PetriNetUnfolder]: 96/731 cut-off events. [2022-07-13 02:28:44,832 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-07-13 02:28:44,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 731 events. 96/731 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2891 event pairs, 6 based on Foata normal form. 0/571 useless extension candidates. Maximal degree in co-relation 503. Up to 32 conditions per place. [2022-07-13 02:28:44,860 INFO L116 LiptonReduction]: Number of co-enabled transitions 35856 [2022-07-13 02:28:49,422 INFO L131 LiptonReduction]: Checked pairs total: 98000 [2022-07-13 02:28:49,423 INFO L133 LiptonReduction]: Total number of compositions: 237 [2022-07-13 02:28:49,424 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 116 transitions, 276 flow