./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.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_60-invariant_racefree.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 ca8ac8d2a0a0bfcebfb7f99229747142c166641dd0f1bf091ac2b4ae67e9ee75 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:29:59,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:29:59,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:29:59,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:29:59,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:29:59,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:29:59,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:29:59,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:29:59,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:29:59,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:29:59,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:29:59,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:29:59,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:29:59,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:29:59,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:29:59,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:29:59,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:29:59,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:29:59,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:29:59,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:29:59,790 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:29:59,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:29:59,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:29:59,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:29:59,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:29:59,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:29:59,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:29:59,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:29:59,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:29:59,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:29:59,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:29:59,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:29:59,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:29:59,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:29:59,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:29:59,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:29:59,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:29:59,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:29:59,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:29:59,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:29:59,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:29:59,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:29:59,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:29:59,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:29:59,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:29:59,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:29:59,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:29:59,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:29:59,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:29:59,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:29:59,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:29:59,849 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:29:59,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:29:59,850 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:29:59,850 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:29:59,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:29:59,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:29:59,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:29:59,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:29:59,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:29:59,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:29:59,851 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:29:59,852 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:29:59,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:29:59,852 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:29:59,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:29:59,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:29:59,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:29:59,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:29:59,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:29:59,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:29:59,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:29:59,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:29:59,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:29:59,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:29:59,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:29:59,855 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca8ac8d2a0a0bfcebfb7f99229747142c166641dd0f1bf091ac2b4ae67e9ee75 [2022-07-13 02:30:00,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:30:00,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:30:00,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:30:00,124 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:30:00,125 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:30:00,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i [2022-07-13 02:30:00,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe9da2ce/f87b0b32b87944cb84ad8c617761d885/FLAGa673f4de9 [2022-07-13 02:30:00,756 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:30:00,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i [2022-07-13 02:30:00,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe9da2ce/f87b0b32b87944cb84ad8c617761d885/FLAGa673f4de9 [2022-07-13 02:30:01,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe9da2ce/f87b0b32b87944cb84ad8c617761d885 [2022-07-13 02:30:01,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:30:01,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:30:01,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:30:01,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:30:01,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:30:01,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:30:01" (1/1) ... [2022-07-13 02:30:01,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10d048a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01, skipping insertion in model container [2022-07-13 02:30:01,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:30:01" (1/1) ... [2022-07-13 02:30:01,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:30:01,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:30:01,439 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_60-invariant_racefree.i[30176,30189] [2022-07-13 02:30:01,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:30:01,477 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:30:01,504 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_60-invariant_racefree.i[30176,30189] [2022-07-13 02:30:01,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:30:01,542 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:30:01,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01 WrapperNode [2022-07-13 02:30:01,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:30:01,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:30:01,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:30:01,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:30:01,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01" (1/1) ... [2022-07-13 02:30:01,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01" (1/1) ... [2022-07-13 02:30:01,584 INFO L137 Inliner]: procedures = 170, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2022-07-13 02:30:01,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:30:01,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:30:01,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:30:01,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:30:01,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01" (1/1) ... [2022-07-13 02:30:01,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01" (1/1) ... [2022-07-13 02:30:01,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01" (1/1) ... [2022-07-13 02:30:01,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01" (1/1) ... [2022-07-13 02:30:01,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01" (1/1) ... [2022-07-13 02:30:01,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01" (1/1) ... [2022-07-13 02:30:01,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01" (1/1) ... [2022-07-13 02:30:01,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:30:01,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:30:01,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:30:01,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:30:01,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01" (1/1) ... [2022-07-13 02:30:01,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:30:01,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:30:01,658 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 02:30:01,664 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 02:30:01,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:30:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:30:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:30:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:30:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:30:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 02:30:01,689 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 02:30:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:30:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:30:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:30:01,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:30:01,691 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 02:30:01,844 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:30:01,845 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:30:02,172 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:30:02,180 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:30:02,181 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-07-13 02:30:02,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:30:02 BoogieIcfgContainer [2022-07-13 02:30:02,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:30:02,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:30:02,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:30:02,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:30:02,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:30:01" (1/3) ... [2022-07-13 02:30:02,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1005b594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:30:02, skipping insertion in model container [2022-07-13 02:30:02,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:01" (2/3) ... [2022-07-13 02:30:02,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1005b594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:30:02, skipping insertion in model container [2022-07-13 02:30:02,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:30:02" (3/3) ... [2022-07-13 02:30:02,192 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_60-invariant_racefree.i [2022-07-13 02:30:02,198 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:30:02,206 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:30:02,206 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-07-13 02:30:02,206 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:30:02,313 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-13 02:30:02,364 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:30:02,373 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 168 transitions, 344 flow [2022-07-13 02:30:02,378 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 168 transitions, 344 flow [2022-07-13 02:30:02,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 168 transitions, 344 flow [2022-07-13 02:30:02,446 INFO L129 PetriNetUnfolder]: 33/233 cut-off events. [2022-07-13 02:30:02,447 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-13 02:30:02,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 233 events. 33/233 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 820 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 128. Up to 6 conditions per place. [2022-07-13 02:30:02,461 INFO L116 LiptonReduction]: Number of co-enabled transitions 8100 [2022-07-13 02:30:05,683 INFO L131 LiptonReduction]: Checked pairs total: 19685 [2022-07-13 02:30:05,683 INFO L133 LiptonReduction]: Total number of compositions: 155 [2022-07-13 02:30:05,691 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 70 transitions, 148 flow [2022-07-13 02:30:05,753 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 620 states, 569 states have (on average 2.7996485061511422) internal successors, (1593), 619 states have internal predecessors, (1593), 0 states have call successors, (0), 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 02:30:05,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:30:05,786 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@458abbd1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1f2eed26 [2022-07-13 02:30:05,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-07-13 02:30:05,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 620 states, 569 states have (on average 2.7996485061511422) internal successors, (1593), 619 states have internal predecessors, (1593), 0 states have call successors, (0), 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 02:30:05,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 02:30:05,800 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:05,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 02:30:05,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-13 02:30:05,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:05,809 INFO L85 PathProgramCache]: Analyzing trace with hash 20428065, now seen corresponding path program 1 times [2022-07-13 02:30:05,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:05,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728018263] [2022-07-13 02:30:05,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:05,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:06,009 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 02:30:06,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:06,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728018263] [2022-07-13 02:30:06,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728018263] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:06,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:06,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:30:06,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031376064] [2022-07-13 02:30:06,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:06,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:30:06,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:06,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:30:06,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:06,048 INFO L87 Difference]: Start difference. First operand has 620 states, 569 states have (on average 2.7996485061511422) internal successors, (1593), 619 states have internal predecessors, (1593), 0 states have call successors, (0), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 02:30:06,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:06,188 INFO L93 Difference]: Finished difference Result 558 states and 1086 transitions. [2022-07-13 02:30:06,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:30:06,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-07-13 02:30:06,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:06,211 INFO L225 Difference]: With dead ends: 558 [2022-07-13 02:30:06,212 INFO L226 Difference]: Without dead ends: 548 [2022-07-13 02:30:06,213 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 02:30:06,217 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 22 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 14 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 02:30:06,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 14 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:06,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-07-13 02:30:06,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2022-07-13 02:30:06,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 513 states have (on average 2.0799220272904484) internal successors, (1067), 547 states have internal predecessors, (1067), 0 states have call successors, (0), 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 02:30:06,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 1067 transitions. [2022-07-13 02:30:06,285 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 1067 transitions. Word has length 4 [2022-07-13 02:30:06,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:06,286 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 1067 transitions. [2022-07-13 02:30:06,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 02:30:06,286 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 1067 transitions. [2022-07-13 02:30:06,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:30:06,287 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:06,287 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-07-13 02:30:06,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:30:06,288 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-13 02:30:06,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:06,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1843448053, now seen corresponding path program 1 times [2022-07-13 02:30:06,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:06,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415518208] [2022-07-13 02:30:06,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:06,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:30:06,331 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:30:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:30:06,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:30:06,368 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:30:06,370 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-07-13 02:30:06,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2022-07-13 02:30:06,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2022-07-13 02:30:06,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2022-07-13 02:30:06,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2022-07-13 02:30:06,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2022-07-13 02:30:06,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2022-07-13 02:30:06,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2022-07-13 02:30:06,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2022-07-13 02:30:06,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2022-07-13 02:30:06,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2022-07-13 02:30:06,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2022-07-13 02:30:06,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2022-07-13 02:30:06,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2022-07-13 02:30:06,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2022-07-13 02:30:06,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2022-07-13 02:30:06,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2022-07-13 02:30:06,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:30:06,378 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 02:30:06,380 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 02:30:06,380 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-13 02:30:06,398 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-13 02:30:06,402 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:30:06,402 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 224 transitions, 466 flow [2022-07-13 02:30:06,403 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 224 transitions, 466 flow [2022-07-13 02:30:06,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 196 places, 224 transitions, 466 flow [2022-07-13 02:30:06,500 INFO L129 PetriNetUnfolder]: 57/391 cut-off events. [2022-07-13 02:30:06,500 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-07-13 02:30:06,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 391 events. 57/391 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1577 event pairs, 0 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 235. Up to 9 conditions per place. [2022-07-13 02:30:06,524 INFO L116 LiptonReduction]: Number of co-enabled transitions 24084 [2022-07-13 02:30:10,134 INFO L131 LiptonReduction]: Checked pairs total: 60182 [2022-07-13 02:30:10,134 INFO L133 LiptonReduction]: Total number of compositions: 206 [2022-07-13 02:30:10,136 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 104 transitions, 226 flow [2022-07-13 02:30:10,672 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 14415 states, 14124 states have (on average 3.972741433021807) internal successors, (56111), 14414 states have internal predecessors, (56111), 0 states have call successors, (0), 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 02:30:10,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:30:10,677 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@458abbd1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1f2eed26 [2022-07-13 02:30:10,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-07-13 02:30:10,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 14415 states, 14124 states have (on average 3.972741433021807) internal successors, (56111), 14414 states have internal predecessors, (56111), 0 states have call successors, (0), 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 02:30:10,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 02:30:10,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:10,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 02:30:10,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-13 02:30:10,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:10,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1095064618, now seen corresponding path program 1 times [2022-07-13 02:30:10,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:10,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16735759] [2022-07-13 02:30:10,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:10,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:10,845 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 02:30:10,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:10,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16735759] [2022-07-13 02:30:10,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16735759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:10,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:10,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:30:10,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808121520] [2022-07-13 02:30:10,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:10,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:30:10,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:10,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:30:10,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:10,889 INFO L87 Difference]: Start difference. First operand has 14415 states, 14124 states have (on average 3.972741433021807) internal successors, (56111), 14414 states have internal predecessors, (56111), 0 states have call successors, (0), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 02:30:11,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:11,246 INFO L93 Difference]: Finished difference Result 14353 states and 41788 transitions. [2022-07-13 02:30:11,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:30:11,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 02:30:11,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:11,369 INFO L225 Difference]: With dead ends: 14353 [2022-07-13 02:30:11,369 INFO L226 Difference]: Without dead ends: 14271 [2022-07-13 02:30:11,370 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 02:30:11,373 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:11,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 32 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:11,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14271 states. [2022-07-13 02:30:11,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14271 to 14271. [2022-07-13 02:30:12,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14271 states, 13998 states have (on average 2.967852550364338) internal successors, (41544), 14270 states have internal predecessors, (41544), 0 states have call successors, (0), 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 02:30:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14271 states to 14271 states and 41544 transitions. [2022-07-13 02:30:12,223 INFO L78 Accepts]: Start accepts. Automaton has 14271 states and 41544 transitions. Word has length 5 [2022-07-13 02:30:12,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:12,223 INFO L495 AbstractCegarLoop]: Abstraction has 14271 states and 41544 transitions. [2022-07-13 02:30:12,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 02:30:12,224 INFO L276 IsEmpty]: Start isEmpty. Operand 14271 states and 41544 transitions. [2022-07-13 02:30:12,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:30:12,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:12,226 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:30:12,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:30:12,227 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-13 02:30:12,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:12,228 INFO L85 PathProgramCache]: Analyzing trace with hash 774072775, now seen corresponding path program 1 times [2022-07-13 02:30:12,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:12,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898502349] [2022-07-13 02:30:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:12,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:12,296 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 02:30:12,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:12,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898502349] [2022-07-13 02:30:12,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898502349] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:12,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:12,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:30:12,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292776952] [2022-07-13 02:30:12,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:12,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:30:12,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:12,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:30:12,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:12,301 INFO L87 Difference]: Start difference. First operand 14271 states and 41544 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 02:30:12,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:12,497 INFO L93 Difference]: Finished difference Result 13787 states and 40092 transitions. [2022-07-13 02:30:12,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:30:12,497 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 02:30:12,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:12,653 INFO L225 Difference]: With dead ends: 13787 [2022-07-13 02:30:12,653 INFO L226 Difference]: Without dead ends: 13787 [2022-07-13 02:30:12,654 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 02:30:12,660 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 74 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:12,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 16 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:12,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13787 states. [2022-07-13 02:30:13,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13787 to 13787. [2022-07-13 02:30:13,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13787 states, 13539 states have (on average 2.9612231331708396) internal successors, (40092), 13786 states have internal predecessors, (40092), 0 states have call successors, (0), 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 02:30:13,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13787 states to 13787 states and 40092 transitions. [2022-07-13 02:30:13,299 INFO L78 Accepts]: Start accepts. Automaton has 13787 states and 40092 transitions. Word has length 9 [2022-07-13 02:30:13,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:13,315 INFO L495 AbstractCegarLoop]: Abstraction has 13787 states and 40092 transitions. [2022-07-13 02:30:13,315 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 02:30:13,316 INFO L276 IsEmpty]: Start isEmpty. Operand 13787 states and 40092 transitions. [2022-07-13 02:30:13,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:30:13,318 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:13,318 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:30:13,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:30:13,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-13 02:30:13,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:13,319 INFO L85 PathProgramCache]: Analyzing trace with hash 774072776, now seen corresponding path program 1 times [2022-07-13 02:30:13,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:13,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955156539] [2022-07-13 02:30:13,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:13,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:13,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 02:30:13,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:13,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955156539] [2022-07-13 02:30:13,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955156539] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:13,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:13,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:30:13,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591513917] [2022-07-13 02:30:13,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:13,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:30:13,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:13,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:30:13,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:13,375 INFO L87 Difference]: Start difference. First operand 13787 states and 40092 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 02:30:13,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:13,591 INFO L93 Difference]: Finished difference Result 13303 states and 38640 transitions. [2022-07-13 02:30:13,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:30:13,592 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 02:30:13,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:13,653 INFO L225 Difference]: With dead ends: 13303 [2022-07-13 02:30:13,653 INFO L226 Difference]: Without dead ends: 13303 [2022-07-13 02:30:13,653 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 02:30:13,655 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 46 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:13,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 30 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:13,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13303 states. [2022-07-13 02:30:14,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13303 to 13303. [2022-07-13 02:30:14,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13303 states, 13080 states have (on average 2.9541284403669725) internal successors, (38640), 13302 states have internal predecessors, (38640), 0 states have call successors, (0), 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 02:30:14,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13303 states to 13303 states and 38640 transitions. [2022-07-13 02:30:14,227 INFO L78 Accepts]: Start accepts. Automaton has 13303 states and 38640 transitions. Word has length 9 [2022-07-13 02:30:14,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:14,227 INFO L495 AbstractCegarLoop]: Abstraction has 13303 states and 38640 transitions. [2022-07-13 02:30:14,227 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 02:30:14,227 INFO L276 IsEmpty]: Start isEmpty. Operand 13303 states and 38640 transitions. [2022-07-13 02:30:14,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:30:14,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:14,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:30:14,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 02:30:14,229 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-13 02:30:14,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:14,229 INFO L85 PathProgramCache]: Analyzing trace with hash 773091317, now seen corresponding path program 1 times [2022-07-13 02:30:14,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:14,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074466934] [2022-07-13 02:30:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:14,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:14,266 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 02:30:14,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:14,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074466934] [2022-07-13 02:30:14,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074466934] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:30:14,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646142784] [2022-07-13 02:30:14,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:14,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:14,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:30:14,271 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 02:30:14,296 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 02:30:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:14,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:30:14,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:30:14,415 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 02:30:14,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:30:14,448 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 02:30:14,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646142784] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:30:14,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:30:14,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-13 02:30:14,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626536358] [2022-07-13 02:30:14,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:30:14,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 02:30:14,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:14,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 02:30:14,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:30:14,450 INFO L87 Difference]: Start difference. First operand 13303 states and 38640 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 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 02:30:14,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:14,570 INFO L93 Difference]: Finished difference Result 2511 states and 6955 transitions. [2022-07-13 02:30:14,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:30:14,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 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 02:30:14,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:14,578 INFO L225 Difference]: With dead ends: 2511 [2022-07-13 02:30:14,578 INFO L226 Difference]: Without dead ends: 2511 [2022-07-13 02:30:14,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 02:30:14,579 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 280 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:14,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 29 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:14,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2022-07-13 02:30:14,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2511. [2022-07-13 02:30:14,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2486 states have (on average 2.7976669348350764) internal successors, (6955), 2510 states have internal predecessors, (6955), 0 states have call successors, (0), 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 02:30:14,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 6955 transitions. [2022-07-13 02:30:14,631 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 6955 transitions. Word has length 9 [2022-07-13 02:30:14,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:14,632 INFO L495 AbstractCegarLoop]: Abstraction has 2511 states and 6955 transitions. [2022-07-13 02:30:14,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 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 02:30:14,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 6955 transitions. [2022-07-13 02:30:14,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:30:14,633 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:14,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:30:14,659 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 02:30:14,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-13 02:30:14,847 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-13 02:30:14,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:14,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1952129068, now seen corresponding path program 1 times [2022-07-13 02:30:14,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:14,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126164198] [2022-07-13 02:30:14,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:14,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:14,867 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 02:30:14,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:14,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126164198] [2022-07-13 02:30:14,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126164198] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:14,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:14,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:30:14,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979199206] [2022-07-13 02:30:14,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:14,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:30:14,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:14,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:30:14,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:14,870 INFO L87 Difference]: Start difference. First operand 2511 states and 6955 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 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 02:30:14,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:14,887 INFO L93 Difference]: Finished difference Result 276 states and 671 transitions. [2022-07-13 02:30:14,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:30:14,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 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 02:30:14,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:14,888 INFO L225 Difference]: With dead ends: 276 [2022-07-13 02:30:14,889 INFO L226 Difference]: Without dead ends: 276 [2022-07-13 02:30:14,889 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 02:30:14,890 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:14,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:30:14,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-07-13 02:30:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2022-07-13 02:30:14,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 275 states have (on average 2.44) internal successors, (671), 275 states have internal predecessors, (671), 0 states have call successors, (0), 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 02:30:14,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 671 transitions. [2022-07-13 02:30:14,898 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 671 transitions. Word has length 9 [2022-07-13 02:30:14,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:14,898 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 671 transitions. [2022-07-13 02:30:14,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 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 02:30:14,898 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 671 transitions. [2022-07-13 02:30:14,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:30:14,901 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:14,903 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-07-13 02:30:14,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 02:30:14,904 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-13 02:30:14,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:14,904 INFO L85 PathProgramCache]: Analyzing trace with hash 854675024, now seen corresponding path program 1 times [2022-07-13 02:30:14,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:14,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991075195] [2022-07-13 02:30:14,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:14,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:30:14,923 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:30:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:30:14,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:30:14,945 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:30:14,945 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2022-07-13 02:30:14,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-07-13 02:30:14,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-07-13 02:30:14,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-07-13 02:30:14,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-07-13 02:30:14,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-07-13 02:30:14,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-07-13 02:30:14,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-07-13 02:30:14,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-07-13 02:30:14,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-07-13 02:30:14,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-07-13 02:30:14,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-07-13 02:30:14,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2022-07-13 02:30:14,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-07-13 02:30:14,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-07-13 02:30:14,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-07-13 02:30:14,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-07-13 02:30:14,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-07-13 02:30:14,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-07-13 02:30:14,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-07-13 02:30:14,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-07-13 02:30:14,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 02:30:14,949 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-13 02:30:14,950 WARN L231 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 02:30:14,950 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-07-13 02:30:14,970 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-13 02:30:14,973 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:30:14,973 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 280 transitions, 590 flow [2022-07-13 02:30:14,974 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 280 transitions, 590 flow [2022-07-13 02:30:14,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 243 places, 280 transitions, 590 flow [2022-07-13 02:30:15,104 INFO L129 PetriNetUnfolder]: 86/590 cut-off events. [2022-07-13 02:30:15,105 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-07-13 02:30:15,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 590 events. 86/590 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2492 event pairs, 1 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 399. Up to 16 conditions per place. [2022-07-13 02:30:15,146 INFO L116 LiptonReduction]: Number of co-enabled transitions 45360 [2022-07-13 02:30:19,457 INFO L131 LiptonReduction]: Checked pairs total: 124811 [2022-07-13 02:30:19,457 INFO L133 LiptonReduction]: Total number of compositions: 246 [2022-07-13 02:30:19,458 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 137 transitions, 304 flow [2022-07-13 02:30:30,123 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 320941 states, 319360 states have (on average 5.305626878757515) internal successors, (1694405), 320940 states have internal predecessors, (1694405), 0 states have call successors, (0), 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 02:30:30,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:30:30,140 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@458abbd1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1f2eed26 [2022-07-13 02:30:30,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-07-13 02:30:30,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 320941 states, 319360 states have (on average 5.305626878757515) internal successors, (1694405), 320940 states have internal predecessors, (1694405), 0 states have call successors, (0), 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 02:30:30,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 02:30:30,819 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:30,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 02:30:30,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-07-13 02:30:30,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:30,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1649940999, now seen corresponding path program 1 times [2022-07-13 02:30:30,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:30,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249119291] [2022-07-13 02:30:30,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:30,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:30,841 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 02:30:30,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:30,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249119291] [2022-07-13 02:30:30,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249119291] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:30,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:30,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:30:30,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632902982] [2022-07-13 02:30:30,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:30,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:30:30,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:30,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:30:30,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:31,480 INFO L87 Difference]: Start difference. First operand has 320941 states, 319360 states have (on average 5.305626878757515) internal successors, (1694405), 320940 states have internal predecessors, (1694405), 0 states have call successors, (0), 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, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 02:30:38,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:38,263 INFO L93 Difference]: Finished difference Result 320879 states and 1249743 transitions. [2022-07-13 02:30:38,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:30:38,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 02:30:38,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:41,999 INFO L225 Difference]: With dead ends: 320879 [2022-07-13 02:30:41,999 INFO L226 Difference]: Without dead ends: 320149 [2022-07-13 02:30:41,999 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 02:30:42,000 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 25 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:42,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 36 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:42,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320149 states. [2022-07-13 02:30:55,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320149 to 320149. [2022-07-13 02:30:55,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320149 states, 318590 states have (on average 3.913575441790389) internal successors, (1246826), 320148 states have internal predecessors, (1246826), 0 states have call successors, (0), 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 02:30:58,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320149 states to 320149 states and 1246826 transitions. [2022-07-13 02:30:58,877 INFO L78 Accepts]: Start accepts. Automaton has 320149 states and 1246826 transitions. Word has length 5 [2022-07-13 02:30:58,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:58,878 INFO L495 AbstractCegarLoop]: Abstraction has 320149 states and 1246826 transitions. [2022-07-13 02:30:58,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 02:30:58,878 INFO L276 IsEmpty]: Start isEmpty. Operand 320149 states and 1246826 transitions. [2022-07-13 02:30:58,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:30:58,879 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:58,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:30:58,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 02:30:58,879 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-07-13 02:30:58,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:58,880 INFO L85 PathProgramCache]: Analyzing trace with hash 540318489, now seen corresponding path program 1 times [2022-07-13 02:30:58,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:58,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771708776] [2022-07-13 02:30:58,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:58,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:58,904 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 02:30:58,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:58,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771708776] [2022-07-13 02:30:58,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771708776] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:30:58,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109241691] [2022-07-13 02:30:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:58,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:58,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:30:58,908 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 02:30:58,925 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 02:30:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:58,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:30:58,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:30:58,992 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 02:30:58,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:30:59,007 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 02:30:59,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109241691] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:30:59,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:30:59,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-13 02:30:59,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115322989] [2022-07-13 02:30:59,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:30:59,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 02:30:59,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:59,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 02:30:59,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:30:59,010 INFO L87 Difference]: Start difference. First operand 320149 states and 1246826 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 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 02:31:00,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:31:00,470 INFO L93 Difference]: Finished difference Result 66399 states and 252343 transitions. [2022-07-13 02:31:00,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:31:00,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 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 02:31:00,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:31:00,927 INFO L225 Difference]: With dead ends: 66399 [2022-07-13 02:31:00,927 INFO L226 Difference]: Without dead ends: 66399 [2022-07-13 02:31:00,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 02:31:00,928 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 387 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:31:00,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 77 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:31:01,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66399 states. [2022-07-13 02:31:02,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66399 to 66399. [2022-07-13 02:31:02,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66399 states, 66124 states have (on average 3.8162089407779325) internal successors, (252343), 66398 states have internal predecessors, (252343), 0 states have call successors, (0), 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 02:31:03,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66399 states to 66399 states and 252343 transitions. [2022-07-13 02:31:03,181 INFO L78 Accepts]: Start accepts. Automaton has 66399 states and 252343 transitions. Word has length 9 [2022-07-13 02:31:03,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:31:03,181 INFO L495 AbstractCegarLoop]: Abstraction has 66399 states and 252343 transitions. [2022-07-13 02:31:03,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 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 02:31:03,181 INFO L276 IsEmpty]: Start isEmpty. Operand 66399 states and 252343 transitions. [2022-07-13 02:31:03,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:31:03,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:31:03,182 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:31:03,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-13 02:31:03,407 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,SelfDestructingSolverStorable9 [2022-07-13 02:31:03,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-07-13 02:31:03,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:31:03,408 INFO L85 PathProgramCache]: Analyzing trace with hash 540566903, now seen corresponding path program 1 times [2022-07-13 02:31:03,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:31:03,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818134303] [2022-07-13 02:31:03,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:31:03,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:31:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:31:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:31:03,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:31:03,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818134303] [2022-07-13 02:31:03,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818134303] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:31:03,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129896128] [2022-07-13 02:31:03,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:31:03,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:31:03,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:31:03,440 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 02:31:03,442 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 02:31:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:31:03,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 02:31:03,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:31:03,530 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 02:31:03,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:31:03,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129896128] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:31:03,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:31:03,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-07-13 02:31:03,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764524569] [2022-07-13 02:31:03,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:31:03,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:31:03,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:31:03,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:31:03,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:31:03,533 INFO L87 Difference]: Start difference. First operand 66399 states and 252343 transitions. Second operand has 4 states, 3 states have (on average 3.0) 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 02:31:04,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:31:04,773 INFO L93 Difference]: Finished difference Result 55267 states and 208299 transitions. [2022-07-13 02:31:04,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:31:04,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) 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 02:31:04,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:31:05,121 INFO L225 Difference]: With dead ends: 55267 [2022-07-13 02:31:05,121 INFO L226 Difference]: Without dead ends: 55267 [2022-07-13 02:31:05,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:31:05,122 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 91 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:31:05,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 20 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:31:05,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55267 states.