./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_02-simple_racefree.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_02-simple_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 b3e7d0a2f10d1449a9a354d4032bafdd0ae7a7fd76aceb835acbee3134ec74e4 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 14:02:25,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 14:02:25,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 14:02:25,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 14:02:25,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 14:02:25,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 14:02:25,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 14:02:25,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 14:02:25,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 14:02:25,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 14:02:25,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 14:02:25,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 14:02:25,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 14:02:25,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 14:02:25,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 14:02:25,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 14:02:25,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 14:02:25,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 14:02:25,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 14:02:25,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 14:02:25,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 14:02:25,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 14:02:25,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 14:02:25,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 14:02:25,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 14:02:25,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 14:02:25,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 14:02:25,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 14:02:25,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 14:02:25,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 14:02:25,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 14:02:25,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 14:02:25,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 14:02:25,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 14:02:25,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 14:02:25,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 14:02:25,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 14:02:25,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 14:02:25,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 14:02:25,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 14:02:25,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 14:02:25,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 14:02:25,250 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 14:02:25,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 14:02:25,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 14:02:25,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 14:02:25,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 14:02:25,253 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 14:02:25,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 14:02:25,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 14:02:25,253 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 14:02:25,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 14:02:25,254 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 14:02:25,254 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 14:02:25,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 14:02:25,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 14:02:25,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 14:02:25,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 14:02:25,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 14:02:25,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 14:02:25,255 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 14:02:25,255 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 14:02:25,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 14:02:25,256 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 14:02:25,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 14:02:25,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 14:02:25,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 14:02:25,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 14:02:25,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:02:25,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 14:02:25,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 14:02:25,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 14:02:25,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 14:02:25,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 14:02:25,258 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 14:02:25,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 14:02:25,258 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 14:02:25,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 14:02:25,258 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 14:02:25,258 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3e7d0a2f10d1449a9a354d4032bafdd0ae7a7fd76aceb835acbee3134ec74e4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 14:02:25,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 14:02:25,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 14:02:25,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 14:02:25,547 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 14:02:25,547 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 14:02:25,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_02-simple_racefree.i [2023-08-30 14:02:26,686 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 14:02:26,893 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 14:02:26,894 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_02-simple_racefree.i [2023-08-30 14:02:26,904 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b987a85/38ab1b77579b4d98a376b7a6abd19094/FLAG71ccf890d [2023-08-30 14:02:26,914 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b987a85/38ab1b77579b4d98a376b7a6abd19094 [2023-08-30 14:02:26,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 14:02:26,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 14:02:26,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 14:02:26,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 14:02:26,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 14:02:26,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:02:26" (1/1) ... [2023-08-30 14:02:26,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b007ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:26, skipping insertion in model container [2023-08-30 14:02:26,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:02:26" (1/1) ... [2023-08-30 14:02:26,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 14:02:26,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 14:02:27,176 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_02-simple_racefree.i[30176,30189] [2023-08-30 14:02:27,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:02:27,206 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 14:02:27,248 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_02-simple_racefree.i[30176,30189] [2023-08-30 14:02:27,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:02:27,294 INFO L208 MainTranslator]: Completed translation [2023-08-30 14:02:27,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27 WrapperNode [2023-08-30 14:02:27,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 14:02:27,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 14:02:27,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 14:02:27,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 14:02:27,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27" (1/1) ... [2023-08-30 14:02:27,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27" (1/1) ... [2023-08-30 14:02:27,347 INFO L138 Inliner]: procedures = 170, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2023-08-30 14:02:27,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 14:02:27,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 14:02:27,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 14:02:27,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 14:02:27,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27" (1/1) ... [2023-08-30 14:02:27,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27" (1/1) ... [2023-08-30 14:02:27,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27" (1/1) ... [2023-08-30 14:02:27,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27" (1/1) ... [2023-08-30 14:02:27,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27" (1/1) ... [2023-08-30 14:02:27,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27" (1/1) ... [2023-08-30 14:02:27,385 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27" (1/1) ... [2023-08-30 14:02:27,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27" (1/1) ... [2023-08-30 14:02:27,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 14:02:27,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 14:02:27,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 14:02:27,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 14:02:27,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27" (1/1) ... [2023-08-30 14:02:27,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:02:27,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:02:27,423 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) [2023-08-30 14:02:27,446 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 [2023-08-30 14:02:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 14:02:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 14:02:27,466 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 14:02:27,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 14:02:27,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 14:02:27,466 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 14:02:27,466 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 14:02:27,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 14:02:27,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 14:02:27,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 14:02:27,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 14:02:27,468 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 14:02:27,611 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 14:02:27,617 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 14:02:27,775 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 14:02:27,782 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 14:02:27,783 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-08-30 14:02:27,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:02:27 BoogieIcfgContainer [2023-08-30 14:02:27,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 14:02:27,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 14:02:27,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 14:02:27,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 14:02:27,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 02:02:26" (1/3) ... [2023-08-30 14:02:27,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428990b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:02:27, skipping insertion in model container [2023-08-30 14:02:27,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:02:27" (2/3) ... [2023-08-30 14:02:27,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428990b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:02:27, skipping insertion in model container [2023-08-30 14:02:27,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:02:27" (3/3) ... [2023-08-30 14:02:27,794 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_02-simple_racefree.i [2023-08-30 14:02:27,799 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 14:02:27,805 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 14:02:27,805 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 14:02:27,805 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 14:02:27,877 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 14:02:27,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 123 transitions, 254 flow [2023-08-30 14:02:27,943 INFO L130 PetriNetUnfolder]: 17/155 cut-off events. [2023-08-30 14:02:27,943 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 14:02:27,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 155 events. 17/155 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 336 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 77. Up to 4 conditions per place. [2023-08-30 14:02:27,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 123 transitions, 254 flow [2023-08-30 14:02:27,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 120 transitions, 248 flow [2023-08-30 14:02:27,956 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:02:27,963 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 120 transitions, 248 flow [2023-08-30 14:02:27,964 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 120 transitions, 248 flow [2023-08-30 14:02:27,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 120 transitions, 248 flow [2023-08-30 14:02:28,013 INFO L130 PetriNetUnfolder]: 16/152 cut-off events. [2023-08-30 14:02:28,014 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 14:02:28,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 152 events. 16/152 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 334 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 77. Up to 4 conditions per place. [2023-08-30 14:02:28,016 INFO L119 LiptonReduction]: Number of co-enabled transitions 3024 [2023-08-30 14:02:30,421 INFO L134 LiptonReduction]: Checked pairs total: 5160 [2023-08-30 14:02:30,421 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-08-30 14:02:30,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:02:30,436 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@49af894e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:02:30,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-30 14:02:30,439 INFO L130 PetriNetUnfolder]: 1/12 cut-off events. [2023-08-30 14:02:30,440 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:02:30,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:02:30,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 14:02:30,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 14:02:30,444 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:02:30,444 INFO L85 PathProgramCache]: Analyzing trace with hash 14477696, now seen corresponding path program 1 times [2023-08-30 14:02:30,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:02:30,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927737542] [2023-08-30 14:02:30,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:02:30,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:02:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:02:30,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:02:30,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:02:30,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927737542] [2023-08-30 14:02:30,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927737542] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:02:30,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:02:30,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:02:30,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760223137] [2023-08-30 14:02:30,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:02:30,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:02:30,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:02:30,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:02:30,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:02:30,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 228 [2023-08-30 14:02:30,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 40 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:30,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:02:30,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 228 [2023-08-30 14:02:30,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:02:30,847 INFO L130 PetriNetUnfolder]: 108/246 cut-off events. [2023-08-30 14:02:30,847 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 14:02:30,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 246 events. 108/246 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 966 event pairs, 88 based on Foata normal form. 23/202 useless extension candidates. Maximal degree in co-relation 475. Up to 229 conditions per place. [2023-08-30 14:02:30,849 INFO L137 encePairwiseOnDemand]: 213/228 looper letters, 37 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2023-08-30 14:02:30,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 41 transitions, 168 flow [2023-08-30 14:02:30,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:02:30,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:02:30,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-08-30 14:02:30,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5453216374269005 [2023-08-30 14:02:30,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-08-30 14:02:30,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-08-30 14:02:30,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:02:30,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-08-30 14:02:30,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:30,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:30,871 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:30,872 INFO L175 Difference]: Start difference. First operand has 34 places, 40 transitions, 88 flow. Second operand 3 states and 373 transitions. [2023-08-30 14:02:30,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 41 transitions, 168 flow [2023-08-30 14:02:30,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 41 transitions, 168 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 14:02:30,876 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 72 flow [2023-08-30 14:02:30,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2023-08-30 14:02:30,880 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2023-08-30 14:02:30,880 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 72 flow [2023-08-30 14:02:30,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:30,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:02:30,881 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-30 14:02:30,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 14:02:30,881 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 14:02:30,882 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:02:30,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1028198526, now seen corresponding path program 1 times [2023-08-30 14:02:30,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:02:30,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004403669] [2023-08-30 14:02:30,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:02:30,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:02:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:02:30,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 14:02:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:02:30,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 14:02:30,925 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 14:02:30,926 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2023-08-30 14:02:30,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-08-30 14:02:30,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-08-30 14:02:30,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-08-30 14:02:30,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2023-08-30 14:02:30,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-08-30 14:02:30,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-08-30 14:02:30,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-08-30 14:02:30,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2023-08-30 14:02:30,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-08-30 14:02:30,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-08-30 14:02:30,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-08-30 14:02:30,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-08-30 14:02:30,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 14:02:30,930 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 14:02:30,932 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-30 14:02:30,933 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-30 14:02:30,950 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 14:02:30,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 161 transitions, 340 flow [2023-08-30 14:02:31,031 INFO L130 PetriNetUnfolder]: 31/261 cut-off events. [2023-08-30 14:02:31,031 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 14:02:31,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 261 events. 31/261 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 719 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 157. Up to 8 conditions per place. [2023-08-30 14:02:31,033 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 161 transitions, 340 flow [2023-08-30 14:02:31,034 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 161 transitions, 340 flow [2023-08-30 14:02:31,034 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:02:31,034 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 161 transitions, 340 flow [2023-08-30 14:02:31,035 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 161 transitions, 340 flow [2023-08-30 14:02:31,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 161 transitions, 340 flow [2023-08-30 14:02:31,050 INFO L130 PetriNetUnfolder]: 31/261 cut-off events. [2023-08-30 14:02:31,050 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 14:02:31,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 261 events. 31/261 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 719 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 157. Up to 8 conditions per place. [2023-08-30 14:02:31,055 INFO L119 LiptonReduction]: Number of co-enabled transitions 10008 [2023-08-30 14:02:33,404 INFO L134 LiptonReduction]: Checked pairs total: 24194 [2023-08-30 14:02:33,404 INFO L136 LiptonReduction]: Total number of compositions: 126 [2023-08-30 14:02:33,406 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:02:33,407 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@49af894e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:02:33,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-08-30 14:02:33,409 INFO L130 PetriNetUnfolder]: 1/13 cut-off events. [2023-08-30 14:02:33,409 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:02:33,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:02:33,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:02:33,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 14:02:33,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:02:33,409 INFO L85 PathProgramCache]: Analyzing trace with hash 758750310, now seen corresponding path program 1 times [2023-08-30 14:02:33,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:02:33,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289426871] [2023-08-30 14:02:33,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:02:33,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:02:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:02:33,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:02:33,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:02:33,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289426871] [2023-08-30 14:02:33,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289426871] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:02:33,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:02:33,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:02:33,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431894673] [2023-08-30 14:02:33,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:02:33,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:02:33,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:02:33,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:02:33,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:02:33,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 287 [2023-08-30 14:02:33,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 68 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:33,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:02:33,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 287 [2023-08-30 14:02:33,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:02:33,985 INFO L130 PetriNetUnfolder]: 4812/7988 cut-off events. [2023-08-30 14:02:33,985 INFO L131 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2023-08-30 14:02:33,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15742 conditions, 7988 events. 4812/7988 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 53894 event pairs, 2262 based on Foata normal form. 978/6306 useless extension candidates. Maximal degree in co-relation 1817. Up to 7633 conditions per place. [2023-08-30 14:02:34,021 INFO L137 encePairwiseOnDemand]: 267/287 looper letters, 59 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2023-08-30 14:02:34,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 68 transitions, 276 flow [2023-08-30 14:02:34,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:02:34,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:02:34,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2023-08-30 14:02:34,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5691056910569106 [2023-08-30 14:02:34,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 490 transitions. [2023-08-30 14:02:34,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 490 transitions. [2023-08-30 14:02:34,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:02:34,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 490 transitions. [2023-08-30 14:02:34,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:34,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:34,028 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:34,028 INFO L175 Difference]: Start difference. First operand has 56 places, 68 transitions, 154 flow. Second operand 3 states and 490 transitions. [2023-08-30 14:02:34,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 68 transitions, 276 flow [2023-08-30 14:02:34,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 68 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 14:02:34,031 INFO L231 Difference]: Finished difference. Result has 59 places, 54 transitions, 140 flow [2023-08-30 14:02:34,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=59, PETRI_TRANSITIONS=54} [2023-08-30 14:02:34,032 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2023-08-30 14:02:34,032 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 54 transitions, 140 flow [2023-08-30 14:02:34,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:34,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:02:34,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:02:34,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 14:02:34,033 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 14:02:34,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:02:34,033 INFO L85 PathProgramCache]: Analyzing trace with hash -978972748, now seen corresponding path program 1 times [2023-08-30 14:02:34,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:02:34,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136235609] [2023-08-30 14:02:34,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:02:34,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:02:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:02:34,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:02:34,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:02:34,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136235609] [2023-08-30 14:02:34,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136235609] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:02:34,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:02:34,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:02:34,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897604299] [2023-08-30 14:02:34,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:02:34,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:02:34,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:02:34,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:02:34,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:02:34,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 287 [2023-08-30 14:02:34,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 54 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:34,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:02:34,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 287 [2023-08-30 14:02:34,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:02:34,604 INFO L130 PetriNetUnfolder]: 4323/7119 cut-off events. [2023-08-30 14:02:34,607 INFO L131 PetriNetUnfolder]: For 463/463 co-relation queries the response was YES. [2023-08-30 14:02:34,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14851 conditions, 7119 events. 4323/7119 cut-off events. For 463/463 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 45441 event pairs, 1698 based on Foata normal form. 0/5077 useless extension candidates. Maximal degree in co-relation 14763. Up to 6515 conditions per place. [2023-08-30 14:02:34,644 INFO L137 encePairwiseOnDemand]: 279/287 looper letters, 64 selfloop transitions, 3 changer transitions 0/74 dead transitions. [2023-08-30 14:02:34,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 74 transitions, 330 flow [2023-08-30 14:02:34,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:02:34,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:02:34,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 472 transitions. [2023-08-30 14:02:34,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5481997677119629 [2023-08-30 14:02:34,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 472 transitions. [2023-08-30 14:02:34,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 472 transitions. [2023-08-30 14:02:34,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:02:34,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 472 transitions. [2023-08-30 14:02:34,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:34,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:34,654 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:34,654 INFO L175 Difference]: Start difference. First operand has 59 places, 54 transitions, 140 flow. Second operand 3 states and 472 transitions. [2023-08-30 14:02:34,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 74 transitions, 330 flow [2023-08-30 14:02:34,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 74 transitions, 327 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:02:34,659 INFO L231 Difference]: Finished difference. Result has 61 places, 56 transitions, 165 flow [2023-08-30 14:02:34,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=61, PETRI_TRANSITIONS=56} [2023-08-30 14:02:34,661 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 5 predicate places. [2023-08-30 14:02:34,661 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 56 transitions, 165 flow [2023-08-30 14:02:34,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:34,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:02:34,662 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-08-30 14:02:34,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 14:02:34,662 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 14:02:34,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:02:34,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2014272621, now seen corresponding path program 1 times [2023-08-30 14:02:34,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:02:34,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566536143] [2023-08-30 14:02:34,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:02:34,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:02:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:02:34,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:02:34,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:02:34,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566536143] [2023-08-30 14:02:34,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566536143] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:02:34,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:02:34,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 14:02:34,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921725508] [2023-08-30 14:02:34,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:02:34,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:02:34,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:02:34,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:02:34,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:02:34,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 287 [2023-08-30 14:02:34,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 56 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:34,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:02:34,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 287 [2023-08-30 14:02:34,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:02:35,168 INFO L130 PetriNetUnfolder]: 3995/6598 cut-off events. [2023-08-30 14:02:35,168 INFO L131 PetriNetUnfolder]: For 1004/1004 co-relation queries the response was YES. [2023-08-30 14:02:35,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14633 conditions, 6598 events. 3995/6598 cut-off events. For 1004/1004 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 41074 event pairs, 3883 based on Foata normal form. 0/5209 useless extension candidates. Maximal degree in co-relation 10634. Up to 6397 conditions per place. [2023-08-30 14:02:35,190 INFO L137 encePairwiseOnDemand]: 285/287 looper letters, 47 selfloop transitions, 1 changer transitions 0/55 dead transitions. [2023-08-30 14:02:35,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 55 transitions, 257 flow [2023-08-30 14:02:35,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:02:35,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:02:35,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2023-08-30 14:02:35,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2023-08-30 14:02:35,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2023-08-30 14:02:35,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2023-08-30 14:02:35,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:02:35,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2023-08-30 14:02:35,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:35,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:35,196 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:35,196 INFO L175 Difference]: Start difference. First operand has 61 places, 56 transitions, 165 flow. Second operand 3 states and 451 transitions. [2023-08-30 14:02:35,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 55 transitions, 257 flow [2023-08-30 14:02:35,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 55 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:02:35,199 INFO L231 Difference]: Finished difference. Result has 61 places, 55 transitions, 160 flow [2023-08-30 14:02:35,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2023-08-30 14:02:35,201 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 5 predicate places. [2023-08-30 14:02:35,201 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 160 flow [2023-08-30 14:02:35,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:35,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:02:35,203 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-08-30 14:02:35,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 14:02:35,203 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 14:02:35,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:02:35,203 INFO L85 PathProgramCache]: Analyzing trace with hash -2014272597, now seen corresponding path program 1 times [2023-08-30 14:02:35,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:02:35,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497680792] [2023-08-30 14:02:35,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:02:35,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:02:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:02:35,240 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 14:02:35,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:02:35,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497680792] [2023-08-30 14:02:35,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497680792] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:02:35,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:02:35,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 14:02:35,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353450644] [2023-08-30 14:02:35,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:02:35,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:02:35,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:02:35,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:02:35,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:02:35,253 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 287 [2023-08-30 14:02:35,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:35,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:02:35,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 287 [2023-08-30 14:02:35,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:02:35,593 INFO L130 PetriNetUnfolder]: 3667/5963 cut-off events. [2023-08-30 14:02:35,593 INFO L131 PetriNetUnfolder]: For 679/679 co-relation queries the response was YES. [2023-08-30 14:02:35,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13170 conditions, 5963 events. 3667/5963 cut-off events. For 679/679 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 38427 event pairs, 639 based on Foata normal form. 0/4836 useless extension candidates. Maximal degree in co-relation 13158. Up to 5009 conditions per place. [2023-08-30 14:02:35,609 INFO L137 encePairwiseOnDemand]: 283/287 looper letters, 72 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2023-08-30 14:02:35,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 83 transitions, 382 flow [2023-08-30 14:02:35,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:02:35,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:02:35,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2023-08-30 14:02:35,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5505226480836237 [2023-08-30 14:02:35,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2023-08-30 14:02:35,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2023-08-30 14:02:35,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:02:35,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2023-08-30 14:02:35,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:35,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:35,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:35,614 INFO L175 Difference]: Start difference. First operand has 61 places, 55 transitions, 160 flow. Second operand 3 states and 474 transitions. [2023-08-30 14:02:35,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 83 transitions, 382 flow [2023-08-30 14:02:35,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 83 transitions, 381 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:02:35,616 INFO L231 Difference]: Finished difference. Result has 62 places, 55 transitions, 171 flow [2023-08-30 14:02:35,616 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=62, PETRI_TRANSITIONS=55} [2023-08-30 14:02:35,617 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2023-08-30 14:02:35,617 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 171 flow [2023-08-30 14:02:35,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:35,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:02:35,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:02:35,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 14:02:35,618 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 14:02:35,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:02:35,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1570873452, now seen corresponding path program 1 times [2023-08-30 14:02:35,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:02:35,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226373852] [2023-08-30 14:02:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:02:35,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:02:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:02:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:02:35,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:02:35,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226373852] [2023-08-30 14:02:35,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226373852] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:02:35,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:02:35,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 14:02:35,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757062211] [2023-08-30 14:02:35,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:02:35,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 14:02:35,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:02:35,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 14:02:35,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 14:02:35,687 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 287 [2023-08-30 14:02:35,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 171 flow. Second operand has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:35,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:02:35,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 287 [2023-08-30 14:02:35,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:02:36,160 INFO L130 PetriNetUnfolder]: 4548/7586 cut-off events. [2023-08-30 14:02:36,161 INFO L131 PetriNetUnfolder]: For 2608/2608 co-relation queries the response was YES. [2023-08-30 14:02:36,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17211 conditions, 7586 events. 4548/7586 cut-off events. For 2608/2608 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 49285 event pairs, 722 based on Foata normal form. 0/6354 useless extension candidates. Maximal degree in co-relation 17197. Up to 4022 conditions per place. [2023-08-30 14:02:36,187 INFO L137 encePairwiseOnDemand]: 272/287 looper letters, 151 selfloop transitions, 19 changer transitions 0/177 dead transitions. [2023-08-30 14:02:36,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 177 transitions, 881 flow [2023-08-30 14:02:36,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 14:02:36,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 14:02:36,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1080 transitions. [2023-08-30 14:02:36,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5375808860129417 [2023-08-30 14:02:36,190 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1080 transitions. [2023-08-30 14:02:36,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1080 transitions. [2023-08-30 14:02:36,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:02:36,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1080 transitions. [2023-08-30 14:02:36,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 154.28571428571428) internal successors, (1080), 7 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:36,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:36,196 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:36,196 INFO L175 Difference]: Start difference. First operand has 62 places, 55 transitions, 171 flow. Second operand 7 states and 1080 transitions. [2023-08-30 14:02:36,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 177 transitions, 881 flow [2023-08-30 14:02:36,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 177 transitions, 863 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:02:36,201 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 326 flow [2023-08-30 14:02:36,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=326, PETRI_PLACES=72, PETRI_TRANSITIONS=71} [2023-08-30 14:02:36,202 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 16 predicate places. [2023-08-30 14:02:36,202 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 326 flow [2023-08-30 14:02:36,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:36,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:02:36,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:02:36,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 14:02:36,203 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 14:02:36,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:02:36,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1570873521, now seen corresponding path program 1 times [2023-08-30 14:02:36,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:02:36,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541151031] [2023-08-30 14:02:36,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:02:36,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:02:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:02:36,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:02:36,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:02:36,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541151031] [2023-08-30 14:02:36,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541151031] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:02:36,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:02:36,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 14:02:36,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017264719] [2023-08-30 14:02:36,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:02:36,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 14:02:36,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:02:36,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 14:02:36,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 14:02:36,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 287 [2023-08-30 14:02:36,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 326 flow. Second operand has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:36,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:02:36,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 287 [2023-08-30 14:02:36,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:02:36,725 INFO L130 PetriNetUnfolder]: 4271/7282 cut-off events. [2023-08-30 14:02:36,725 INFO L131 PetriNetUnfolder]: For 5989/5989 co-relation queries the response was YES. [2023-08-30 14:02:36,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20000 conditions, 7282 events. 4271/7282 cut-off events. For 5989/5989 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 48044 event pairs, 663 based on Foata normal form. 278/7199 useless extension candidates. Maximal degree in co-relation 19980. Up to 4138 conditions per place. [2023-08-30 14:02:36,753 INFO L137 encePairwiseOnDemand]: 272/287 looper letters, 154 selfloop transitions, 24 changer transitions 0/185 dead transitions. [2023-08-30 14:02:36,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 185 transitions, 1064 flow [2023-08-30 14:02:36,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 14:02:36,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 14:02:36,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1077 transitions. [2023-08-30 14:02:36,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5360876057740169 [2023-08-30 14:02:36,756 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1077 transitions. [2023-08-30 14:02:36,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1077 transitions. [2023-08-30 14:02:36,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:02:36,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1077 transitions. [2023-08-30 14:02:36,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 153.85714285714286) internal successors, (1077), 7 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:36,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:36,760 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:36,760 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 326 flow. Second operand 7 states and 1077 transitions. [2023-08-30 14:02:36,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 185 transitions, 1064 flow [2023-08-30 14:02:36,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 185 transitions, 1060 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:02:36,774 INFO L231 Difference]: Finished difference. Result has 81 places, 83 transitions, 516 flow [2023-08-30 14:02:36,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=516, PETRI_PLACES=81, PETRI_TRANSITIONS=83} [2023-08-30 14:02:36,774 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 25 predicate places. [2023-08-30 14:02:36,774 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 83 transitions, 516 flow [2023-08-30 14:02:36,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:36,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:02:36,775 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-30 14:02:36,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 14:02:36,775 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 14:02:36,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:02:36,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1314318957, now seen corresponding path program 1 times [2023-08-30 14:02:36,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:02:36,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303436904] [2023-08-30 14:02:36,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:02:36,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:02:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:02:36,783 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 14:02:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:02:36,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 14:02:36,791 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 14:02:36,791 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2023-08-30 14:02:36,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2023-08-30 14:02:36,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2023-08-30 14:02:36,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2023-08-30 14:02:36,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2023-08-30 14:02:36,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2023-08-30 14:02:36,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2023-08-30 14:02:36,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2023-08-30 14:02:36,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2023-08-30 14:02:36,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2023-08-30 14:02:36,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2023-08-30 14:02:36,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2023-08-30 14:02:36,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2023-08-30 14:02:36,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2023-08-30 14:02:36,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2023-08-30 14:02:36,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2023-08-30 14:02:36,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2023-08-30 14:02:36,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 14:02:36,794 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:02:36,794 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-30 14:02:36,794 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-30 14:02:36,807 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-30 14:02:36,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 199 transitions, 428 flow [2023-08-30 14:02:36,831 INFO L130 PetriNetUnfolder]: 50/406 cut-off events. [2023-08-30 14:02:36,831 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-30 14:02:36,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 406 events. 50/406 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1304 event pairs, 1 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 269. Up to 16 conditions per place. [2023-08-30 14:02:36,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 199 transitions, 428 flow [2023-08-30 14:02:36,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 199 transitions, 428 flow [2023-08-30 14:02:36,834 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:02:36,834 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 180 places, 199 transitions, 428 flow [2023-08-30 14:02:36,835 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 180 places, 199 transitions, 428 flow [2023-08-30 14:02:36,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 199 transitions, 428 flow [2023-08-30 14:02:36,867 INFO L130 PetriNetUnfolder]: 50/406 cut-off events. [2023-08-30 14:02:36,868 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-30 14:02:36,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 406 events. 50/406 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1304 event pairs, 1 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 269. Up to 16 conditions per place. [2023-08-30 14:02:36,879 INFO L119 LiptonReduction]: Number of co-enabled transitions 19224 [2023-08-30 14:02:39,433 INFO L134 LiptonReduction]: Checked pairs total: 56778 [2023-08-30 14:02:39,433 INFO L136 LiptonReduction]: Total number of compositions: 151 [2023-08-30 14:02:39,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:02:39,435 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@49af894e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:02:39,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-08-30 14:02:39,436 INFO L130 PetriNetUnfolder]: 1/13 cut-off events. [2023-08-30 14:02:39,436 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:02:39,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:02:39,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:02:39,437 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-08-30 14:02:39,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:02:39,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1128903367, now seen corresponding path program 1 times [2023-08-30 14:02:39,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:02:39,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746317459] [2023-08-30 14:02:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:02:39,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:02:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:02:39,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:02:39,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:02:39,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746317459] [2023-08-30 14:02:39,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746317459] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:02:39,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:02:39,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:02:39,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17560431] [2023-08-30 14:02:39,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:02:39,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:02:39,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:02:39,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:02:39,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:02:39,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 350 [2023-08-30 14:02:39,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 91 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:39,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:02:39,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 350 [2023-08-30 14:02:39,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:02:45,958 INFO L130 PetriNetUnfolder]: 99419/142213 cut-off events. [2023-08-30 14:02:45,958 INFO L131 PetriNetUnfolder]: For 2370/2370 co-relation queries the response was YES. [2023-08-30 14:02:46,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281823 conditions, 142213 events. 99419/142213 cut-off events. For 2370/2370 co-relation queries the response was YES. Maximal size of possible extension queue 3601. Compared 1051414 event pairs, 99178 based on Foata normal form. 15972/112895 useless extension candidates. Maximal degree in co-relation 113295. Up to 138030 conditions per place. [2023-08-30 14:02:46,718 INFO L137 encePairwiseOnDemand]: 327/350 looper letters, 59 selfloop transitions, 1 changer transitions 0/69 dead transitions. [2023-08-30 14:02:46,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 69 transitions, 288 flow [2023-08-30 14:02:46,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:02:46,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:02:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 577 transitions. [2023-08-30 14:02:46,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5495238095238095 [2023-08-30 14:02:46,721 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 577 transitions. [2023-08-30 14:02:46,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 577 transitions. [2023-08-30 14:02:46,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:02:46,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 577 transitions. [2023-08-30 14:02:46,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:46,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:46,725 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:46,725 INFO L175 Difference]: Start difference. First operand has 74 places, 91 transitions, 212 flow. Second operand 3 states and 577 transitions. [2023-08-30 14:02:46,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 69 transitions, 288 flow [2023-08-30 14:02:46,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 69 transitions, 288 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 14:02:46,733 INFO L231 Difference]: Finished difference. Result has 75 places, 69 transitions, 170 flow [2023-08-30 14:02:46,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=75, PETRI_TRANSITIONS=69} [2023-08-30 14:02:46,734 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 1 predicate places. [2023-08-30 14:02:46,735 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 69 transitions, 170 flow [2023-08-30 14:02:46,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:46,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:02:46,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:02:46,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 14:02:46,736 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-08-30 14:02:46,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:02:46,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1128903400, now seen corresponding path program 1 times [2023-08-30 14:02:46,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:02:46,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498103520] [2023-08-30 14:02:46,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:02:46,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:02:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:02:46,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:02:46,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:02:46,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498103520] [2023-08-30 14:02:46,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498103520] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:02:46,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:02:46,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:02:46,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326392533] [2023-08-30 14:02:46,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:02:46,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:02:46,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:02:46,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:02:46,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:02:46,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 350 [2023-08-30 14:02:46,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 69 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:46,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:02:46,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 350 [2023-08-30 14:02:46,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:02:53,203 INFO L130 PetriNetUnfolder]: 99405/142537 cut-off events. [2023-08-30 14:02:53,203 INFO L131 PetriNetUnfolder]: For 2441/2441 co-relation queries the response was YES. [2023-08-30 14:02:53,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282170 conditions, 142537 events. 99405/142537 cut-off events. For 2441/2441 co-relation queries the response was YES. Maximal size of possible extension queue 3605. Compared 1058837 event pairs, 64598 based on Foata normal form. 0/97350 useless extension candidates. Maximal degree in co-relation 282161. Up to 137982 conditions per place. [2023-08-30 14:02:53,856 INFO L137 encePairwiseOnDemand]: 346/350 looper letters, 73 selfloop transitions, 2 changer transitions 0/84 dead transitions. [2023-08-30 14:02:53,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 84 transitions, 350 flow [2023-08-30 14:02:53,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:02:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:02:53,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 572 transitions. [2023-08-30 14:02:53,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5447619047619048 [2023-08-30 14:02:53,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 572 transitions. [2023-08-30 14:02:53,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 572 transitions. [2023-08-30 14:02:53,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:02:53,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 572 transitions. [2023-08-30 14:02:53,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:53,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:53,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:53,862 INFO L175 Difference]: Start difference. First operand has 75 places, 69 transitions, 170 flow. Second operand 3 states and 572 transitions. [2023-08-30 14:02:53,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 84 transitions, 350 flow [2023-08-30 14:02:53,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 84 transitions, 349 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:02:53,865 INFO L231 Difference]: Finished difference. Result has 77 places, 70 transitions, 183 flow [2023-08-30 14:02:53,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=77, PETRI_TRANSITIONS=70} [2023-08-30 14:02:53,866 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 3 predicate places. [2023-08-30 14:02:53,866 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 70 transitions, 183 flow [2023-08-30 14:02:53,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:53,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:02:53,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:02:53,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 14:02:53,867 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-08-30 14:02:53,867 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:02:53,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1742557107, now seen corresponding path program 1 times [2023-08-30 14:02:53,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:02:53,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968950752] [2023-08-30 14:02:53,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:02:53,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:02:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:02:53,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:02:53,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:02:53,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968950752] [2023-08-30 14:02:53,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968950752] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:02:53,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:02:53,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:02:53,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739314368] [2023-08-30 14:02:53,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:02:53,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:02:53,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:02:53,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:02:53,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:02:53,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 350 [2023-08-30 14:02:53,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 70 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:02:53,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:02:53,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 350 [2023-08-30 14:02:53,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:03:00,709 INFO L130 PetriNetUnfolder]: 100668/144047 cut-off events. [2023-08-30 14:03:00,709 INFO L131 PetriNetUnfolder]: For 8555/8555 co-relation queries the response was YES. [2023-08-30 14:03:00,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294447 conditions, 144047 events. 100668/144047 cut-off events. For 8555/8555 co-relation queries the response was YES. Maximal size of possible extension queue 3707. Compared 1062710 event pairs, 48083 based on Foata normal form. 0/103383 useless extension candidates. Maximal degree in co-relation 294436. Up to 137140 conditions per place. [2023-08-30 14:03:01,293 INFO L137 encePairwiseOnDemand]: 339/350 looper letters, 83 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2023-08-30 14:03:01,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 95 transitions, 428 flow [2023-08-30 14:03:01,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:03:01,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:03:01,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 578 transitions. [2023-08-30 14:03:01,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5504761904761905 [2023-08-30 14:03:01,313 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 578 transitions. [2023-08-30 14:03:01,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 578 transitions. [2023-08-30 14:03:01,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:03:01,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 578 transitions. [2023-08-30 14:03:01,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:01,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:01,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:01,316 INFO L175 Difference]: Start difference. First operand has 77 places, 70 transitions, 183 flow. Second operand 3 states and 578 transitions. [2023-08-30 14:03:01,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 95 transitions, 428 flow [2023-08-30 14:03:01,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 95 transitions, 425 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:03:01,337 INFO L231 Difference]: Finished difference. Result has 79 places, 73 transitions, 219 flow [2023-08-30 14:03:01,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=219, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2023-08-30 14:03:01,338 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2023-08-30 14:03:01,338 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 219 flow [2023-08-30 14:03:01,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:01,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:03:01,339 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-08-30 14:03:01,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 14:03:01,339 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-08-30 14:03:01,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:03:01,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1385163771, now seen corresponding path program 1 times [2023-08-30 14:03:01,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:03:01,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040582312] [2023-08-30 14:03:01,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:03:01,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:03:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:03:01,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 14:03:01,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:03:01,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040582312] [2023-08-30 14:03:01,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040582312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:03:01,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:03:01,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 14:03:01,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564061393] [2023-08-30 14:03:01,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:03:01,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:03:01,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:03:01,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:03:01,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:03:01,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 350 [2023-08-30 14:03:01,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 219 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:01,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:03:01,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 350 [2023-08-30 14:03:01,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:03:07,265 INFO L130 PetriNetUnfolder]: 90371/127736 cut-off events. [2023-08-30 14:03:07,266 INFO L131 PetriNetUnfolder]: For 14292/14292 co-relation queries the response was YES. [2023-08-30 14:03:07,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282054 conditions, 127736 events. 90371/127736 cut-off events. For 14292/14292 co-relation queries the response was YES. Maximal size of possible extension queue 3507. Compared 959013 event pairs, 12937 based on Foata normal form. 0/101585 useless extension candidates. Maximal degree in co-relation 282041. Up to 107210 conditions per place. [2023-08-30 14:03:07,997 INFO L137 encePairwiseOnDemand]: 346/350 looper letters, 100 selfloop transitions, 4 changer transitions 0/114 dead transitions. [2023-08-30 14:03:07,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 114 transitions, 529 flow [2023-08-30 14:03:07,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:03:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:03:07,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 592 transitions. [2023-08-30 14:03:07,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5638095238095238 [2023-08-30 14:03:07,999 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 592 transitions. [2023-08-30 14:03:07,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 592 transitions. [2023-08-30 14:03:07,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:03:07,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 592 transitions. [2023-08-30 14:03:08,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:08,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:08,001 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:08,002 INFO L175 Difference]: Start difference. First operand has 79 places, 73 transitions, 219 flow. Second operand 3 states and 592 transitions. [2023-08-30 14:03:08,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 114 transitions, 529 flow [2023-08-30 14:03:08,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 114 transitions, 523 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:03:08,010 INFO L231 Difference]: Finished difference. Result has 80 places, 73 transitions, 227 flow [2023-08-30 14:03:08,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=80, PETRI_TRANSITIONS=73} [2023-08-30 14:03:08,010 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 6 predicate places. [2023-08-30 14:03:08,010 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 73 transitions, 227 flow [2023-08-30 14:03:08,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:08,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:03:08,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:03:08,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 14:03:08,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-08-30 14:03:08,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:03:08,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1835500331, now seen corresponding path program 1 times [2023-08-30 14:03:08,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:03:08,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748130618] [2023-08-30 14:03:08,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:03:08,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:03:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:03:08,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:03:08,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:03:08,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748130618] [2023-08-30 14:03:08,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748130618] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:03:08,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:03:08,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 14:03:08,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982665060] [2023-08-30 14:03:08,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:03:08,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 14:03:08,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:03:08,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 14:03:08,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 14:03:08,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 350 [2023-08-30 14:03:08,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 73 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:08,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:03:08,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 350 [2023-08-30 14:03:08,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:03:16,999 INFO L130 PetriNetUnfolder]: 130682/189276 cut-off events. [2023-08-30 14:03:17,000 INFO L131 PetriNetUnfolder]: For 57008/57008 co-relation queries the response was YES. [2023-08-30 14:03:17,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427393 conditions, 189276 events. 130682/189276 cut-off events. For 57008/57008 co-relation queries the response was YES. Maximal size of possible extension queue 5401. Compared 1493341 event pairs, 28480 based on Foata normal form. 0/156899 useless extension candidates. Maximal degree in co-relation 427378. Up to 106388 conditions per place. [2023-08-30 14:03:17,995 INFO L137 encePairwiseOnDemand]: 329/350 looper letters, 215 selfloop transitions, 30 changer transitions 0/253 dead transitions. [2023-08-30 14:03:17,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 253 transitions, 1269 flow [2023-08-30 14:03:17,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 14:03:17,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 14:03:17,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1355 transitions. [2023-08-30 14:03:17,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5530612244897959 [2023-08-30 14:03:17,999 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1355 transitions. [2023-08-30 14:03:17,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1355 transitions. [2023-08-30 14:03:18,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:03:18,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1355 transitions. [2023-08-30 14:03:18,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 193.57142857142858) internal successors, (1355), 7 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:18,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 350.0) internal successors, (2800), 8 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:18,007 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 350.0) internal successors, (2800), 8 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:18,007 INFO L175 Difference]: Start difference. First operand has 80 places, 73 transitions, 227 flow. Second operand 7 states and 1355 transitions. [2023-08-30 14:03:18,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 253 transitions, 1269 flow [2023-08-30 14:03:18,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 253 transitions, 1251 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:03:18,040 INFO L231 Difference]: Finished difference. Result has 90 places, 99 transitions, 485 flow [2023-08-30 14:03:18,040 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=485, PETRI_PLACES=90, PETRI_TRANSITIONS=99} [2023-08-30 14:03:18,047 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 16 predicate places. [2023-08-30 14:03:18,047 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 99 transitions, 485 flow [2023-08-30 14:03:18,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:18,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:03:18,048 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:03:18,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 14:03:18,048 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-08-30 14:03:18,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:03:18,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1835500306, now seen corresponding path program 1 times [2023-08-30 14:03:18,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:03:18,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610587814] [2023-08-30 14:03:18,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:03:18,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:03:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:03:18,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:03:18,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:03:18,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610587814] [2023-08-30 14:03:18,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610587814] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:03:18,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:03:18,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 14:03:18,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593973007] [2023-08-30 14:03:18,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:03:18,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 14:03:18,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:03:18,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 14:03:18,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 14:03:18,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 350 [2023-08-30 14:03:18,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 99 transitions, 485 flow. Second operand has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:18,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:03:18,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 350 [2023-08-30 14:03:18,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:03:29,835 INFO L130 PetriNetUnfolder]: 135779/201018 cut-off events. [2023-08-30 14:03:29,835 INFO L131 PetriNetUnfolder]: For 195441/196552 co-relation queries the response was YES. [2023-08-30 14:03:30,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563542 conditions, 201018 events. 135779/201018 cut-off events. For 195441/196552 co-relation queries the response was YES. Maximal size of possible extension queue 5980. Compared 1666330 event pairs, 26786 based on Foata normal form. 7907/200383 useless extension candidates. Maximal degree in co-relation 563521. Up to 122085 conditions per place. [2023-08-30 14:03:31,266 INFO L137 encePairwiseOnDemand]: 329/350 looper letters, 235 selfloop transitions, 42 changer transitions 0/285 dead transitions. [2023-08-30 14:03:31,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 285 transitions, 1773 flow [2023-08-30 14:03:31,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 14:03:31,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 14:03:31,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1355 transitions. [2023-08-30 14:03:31,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5530612244897959 [2023-08-30 14:03:31,269 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1355 transitions. [2023-08-30 14:03:31,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1355 transitions. [2023-08-30 14:03:31,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:03:31,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1355 transitions. [2023-08-30 14:03:31,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 193.57142857142858) internal successors, (1355), 7 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:31,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 350.0) internal successors, (2800), 8 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:31,274 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 350.0) internal successors, (2800), 8 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:31,274 INFO L175 Difference]: Start difference. First operand has 90 places, 99 transitions, 485 flow. Second operand 7 states and 1355 transitions. [2023-08-30 14:03:31,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 285 transitions, 1773 flow [2023-08-30 14:03:32,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 285 transitions, 1767 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:03:32,126 INFO L231 Difference]: Finished difference. Result has 99 places, 132 transitions, 961 flow [2023-08-30 14:03:32,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=961, PETRI_PLACES=99, PETRI_TRANSITIONS=132} [2023-08-30 14:03:32,127 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 25 predicate places. [2023-08-30 14:03:32,127 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 132 transitions, 961 flow [2023-08-30 14:03:32,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:32,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:03:32,128 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-30 14:03:32,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 14:03:32,128 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-08-30 14:03:32,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:03:32,129 INFO L85 PathProgramCache]: Analyzing trace with hash 560039193, now seen corresponding path program 1 times [2023-08-30 14:03:32,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:03:32,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969711662] [2023-08-30 14:03:32,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:03:32,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:03:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:03:32,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 14:03:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:03:32,147 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 14:03:32,147 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 14:03:32,147 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2023-08-30 14:03:32,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2023-08-30 14:03:32,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2023-08-30 14:03:32,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2023-08-30 14:03:32,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2023-08-30 14:03:32,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2023-08-30 14:03:32,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2023-08-30 14:03:32,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2023-08-30 14:03:32,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2023-08-30 14:03:32,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2023-08-30 14:03:32,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2023-08-30 14:03:32,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2023-08-30 14:03:32,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2023-08-30 14:03:32,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2023-08-30 14:03:32,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2023-08-30 14:03:32,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2023-08-30 14:03:32,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2023-08-30 14:03:32,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2023-08-30 14:03:32,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2023-08-30 14:03:32,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2023-08-30 14:03:32,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2023-08-30 14:03:32,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 14:03:32,150 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:03:32,151 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-30 14:03:32,151 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-30 14:03:32,166 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-30 14:03:32,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 237 transitions, 518 flow [2023-08-30 14:03:32,215 INFO L130 PetriNetUnfolder]: 81/631 cut-off events. [2023-08-30 14:03:32,216 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-08-30 14:03:32,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 631 events. 81/631 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2378 event pairs, 6 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 426. Up to 32 conditions per place. [2023-08-30 14:03:32,221 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 237 transitions, 518 flow [2023-08-30 14:03:32,225 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 237 transitions, 518 flow [2023-08-30 14:03:32,225 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:03:32,225 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 237 transitions, 518 flow [2023-08-30 14:03:32,227 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 237 transitions, 518 flow [2023-08-30 14:03:32,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 237 transitions, 518 flow [2023-08-30 14:03:32,268 INFO L130 PetriNetUnfolder]: 81/631 cut-off events. [2023-08-30 14:03:32,268 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-08-30 14:03:32,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 631 events. 81/631 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2378 event pairs, 6 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 426. Up to 32 conditions per place. [2023-08-30 14:03:32,287 INFO L119 LiptonReduction]: Number of co-enabled transitions 31248 [2023-08-30 14:03:35,134 INFO L134 LiptonReduction]: Checked pairs total: 96524 [2023-08-30 14:03:35,134 INFO L136 LiptonReduction]: Total number of compositions: 174 [2023-08-30 14:03:35,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:03:35,135 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@49af894e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:03:35,135 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-30 14:03:35,137 INFO L130 PetriNetUnfolder]: 3/16 cut-off events. [2023-08-30 14:03:35,137 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:03:35,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:03:35,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:03:35,137 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-30 14:03:35,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:03:35,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1557688074, now seen corresponding path program 1 times [2023-08-30 14:03:35,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:03:35,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582228960] [2023-08-30 14:03:35,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:03:35,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:03:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:03:35,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:03:35,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:03:35,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582228960] [2023-08-30 14:03:35,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582228960] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:03:35,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:03:35,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:03:35,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628719829] [2023-08-30 14:03:35,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:03:35,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:03:35,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:03:35,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:03:35,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:03:35,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 411 [2023-08-30 14:03:35,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 114 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:03:35,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:03:35,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 411 [2023-08-30 14:03:35,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand