./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/weaver/chl-chromosome-trans.wvr.c -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 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 10:51:33,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 10:51:33,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 10:51:33,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 10:51:33,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 10:51:33,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 10:51:33,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 10:51:33,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 10:51:33,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 10:51:33,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 10:51:33,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 10:51:33,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 10:51:33,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 10:51:33,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 10:51:33,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 10:51:33,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 10:51:33,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 10:51:33,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 10:51:33,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 10:51:33,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 10:51:33,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 10:51:33,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 10:51:33,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 10:51:33,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 10:51:33,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 10:51:33,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 10:51:33,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 10:51:33,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 10:51:33,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 10:51:33,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 10:51:33,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 10:51:33,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 10:51:33,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 10:51:33,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 10:51:33,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 10:51:33,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 10:51:33,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 10:51:33,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 10:51:33,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 10:51:33,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 10:51:33,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 10:51:33,535 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 10:51:33,558 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 10:51:33,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 10:51:33,559 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 10:51:33,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 10:51:33,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 10:51:33,560 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 10:51:33,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 10:51:33,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 10:51:33,561 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 10:51:33,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 10:51:33,562 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 10:51:33,562 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 10:51:33,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 10:51:33,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 10:51:33,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 10:51:33,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 10:51:33,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 10:51:33,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 10:51:33,563 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 10:51:33,563 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 10:51:33,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 10:51:33,564 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 10:51:33,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 10:51:33,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 10:51:33,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 10:51:33,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 10:51:33,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:51:33,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 10:51:33,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 10:51:33,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 10:51:33,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 10:51:33,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 10:51:33,566 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 10:51:33,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 10:51:33,566 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 10:51:33,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 10:51:33,566 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 10:51:33,566 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 10:51:33,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 10:51:33,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 10:51:33,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 10:51:33,829 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 10:51:33,830 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 10:51:33,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2023-08-30 10:51:34,768 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 10:51:34,954 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 10:51:34,954 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2023-08-30 10:51:34,959 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef62bc4b/fdd85405025e4cdca17e3958076b9e2e/FLAG7ef9e4c39 [2023-08-30 10:51:34,969 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef62bc4b/fdd85405025e4cdca17e3958076b9e2e [2023-08-30 10:51:34,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 10:51:34,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 10:51:34,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 10:51:34,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 10:51:34,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 10:51:34,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:51:34" (1/1) ... [2023-08-30 10:51:34,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10340a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:34, skipping insertion in model container [2023-08-30 10:51:34,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:51:34" (1/1) ... [2023-08-30 10:51:34,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 10:51:34,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 10:51:35,106 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c[3034,3047] [2023-08-30 10:51:35,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:51:35,122 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 10:51:35,153 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c[3034,3047] [2023-08-30 10:51:35,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:51:35,168 INFO L208 MainTranslator]: Completed translation [2023-08-30 10:51:35,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35 WrapperNode [2023-08-30 10:51:35,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 10:51:35,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 10:51:35,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 10:51:35,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 10:51:35,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35" (1/1) ... [2023-08-30 10:51:35,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35" (1/1) ... [2023-08-30 10:51:35,226 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 16, calls inlined = 24, statements flattened = 331 [2023-08-30 10:51:35,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 10:51:35,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 10:51:35,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 10:51:35,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 10:51:35,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35" (1/1) ... [2023-08-30 10:51:35,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35" (1/1) ... [2023-08-30 10:51:35,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35" (1/1) ... [2023-08-30 10:51:35,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35" (1/1) ... [2023-08-30 10:51:35,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35" (1/1) ... [2023-08-30 10:51:35,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35" (1/1) ... [2023-08-30 10:51:35,269 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35" (1/1) ... [2023-08-30 10:51:35,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35" (1/1) ... [2023-08-30 10:51:35,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 10:51:35,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 10:51:35,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 10:51:35,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 10:51:35,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35" (1/1) ... [2023-08-30 10:51:35,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:51:35,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:51:35,299 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 10:51:35,341 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 10:51:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 10:51:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 10:51:35,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 10:51:35,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 10:51:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 10:51:35,353 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 10:51:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 10:51:35,353 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 10:51:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-30 10:51:35,353 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-30 10:51:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 10:51:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 10:51:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 10:51:35,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 10:51:35,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 10:51:35,355 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 10:51:35,478 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 10:51:35,480 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 10:51:35,906 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 10:51:35,914 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 10:51:35,915 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-30 10:51:35,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:51:35 BoogieIcfgContainer [2023-08-30 10:51:35,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 10:51:35,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 10:51:35,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 10:51:35,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 10:51:35,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:51:34" (1/3) ... [2023-08-30 10:51:35,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fce0424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:51:35, skipping insertion in model container [2023-08-30 10:51:35,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:51:35" (2/3) ... [2023-08-30 10:51:35,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fce0424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:51:35, skipping insertion in model container [2023-08-30 10:51:35,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:51:35" (3/3) ... [2023-08-30 10:51:35,921 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2023-08-30 10:51:35,927 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 10:51:35,932 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 10:51:35,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-08-30 10:51:35,933 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 10:51:36,007 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-30 10:51:36,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 382 places, 406 transitions, 836 flow [2023-08-30 10:51:36,222 INFO L130 PetriNetUnfolder]: 34/403 cut-off events. [2023-08-30 10:51:36,222 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 10:51:36,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 403 events. 34/403 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 877 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 308. Up to 2 conditions per place. [2023-08-30 10:51:36,232 INFO L82 GeneralOperation]: Start removeDead. Operand has 382 places, 406 transitions, 836 flow [2023-08-30 10:51:36,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 362 places, 385 transitions, 785 flow [2023-08-30 10:51:36,246 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 10:51:36,265 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 362 places, 385 transitions, 785 flow [2023-08-30 10:51:36,268 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 362 places, 385 transitions, 785 flow [2023-08-30 10:51:36,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 362 places, 385 transitions, 785 flow [2023-08-30 10:51:36,335 INFO L130 PetriNetUnfolder]: 33/385 cut-off events. [2023-08-30 10:51:36,335 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 10:51:36,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 385 events. 33/385 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 847 event pairs, 0 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 308. Up to 2 conditions per place. [2023-08-30 10:51:36,352 INFO L119 LiptonReduction]: Number of co-enabled transitions 35358 [2023-08-30 10:51:52,494 INFO L134 LiptonReduction]: Checked pairs total: 38873 [2023-08-30 10:51:52,494 INFO L136 LiptonReduction]: Total number of compositions: 505 [2023-08-30 10:51:52,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 10:51:52,508 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;@4a55493a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 10:51:52,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2023-08-30 10:51:52,509 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-08-30 10:51:52,509 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:51:52,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:51:52,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 10:51:52,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 10:51:52,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:51:52,513 INFO L85 PathProgramCache]: Analyzing trace with hash 54593, now seen corresponding path program 1 times [2023-08-30 10:51:52,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:51:52,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037368488] [2023-08-30 10:51:52,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:51:52,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:51:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:51:52,656 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 10:51:52,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:51:52,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037368488] [2023-08-30 10:51:52,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037368488] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:51:52,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:51:52,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:51:52,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464929290] [2023-08-30 10:51:52,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:51:52,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:51:52,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:51:52,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:51:52,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:51:52,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 911 [2023-08-30 10:51:52,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 131 flow. Second operand has 3 states, 3 states have (on average 368.6666666666667) internal successors, (1106), 3 states have internal predecessors, (1106), 0 states have call successors, (0), 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 10:51:52,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:51:52,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 911 [2023-08-30 10:51:52,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:51:54,260 INFO L130 PetriNetUnfolder]: 9519/13525 cut-off events. [2023-08-30 10:51:54,261 INFO L131 PetriNetUnfolder]: For 618/618 co-relation queries the response was YES. [2023-08-30 10:51:54,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27675 conditions, 13525 events. 9519/13525 cut-off events. For 618/618 co-relation queries the response was YES. Maximal size of possible extension queue 933. Compared 76177 event pairs, 8314 based on Foata normal form. 0/5557 useless extension candidates. Maximal degree in co-relation 12700. Up to 6767 conditions per place. [2023-08-30 10:51:54,317 INFO L137 encePairwiseOnDemand]: 892/911 looper letters, 89 selfloop transitions, 6 changer transitions 0/95 dead transitions. [2023-08-30 10:51:54,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 95 transitions, 410 flow [2023-08-30 10:51:54,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:51:54,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:51:54,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1219 transitions. [2023-08-30 10:51:54,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4460300036589828 [2023-08-30 10:51:54,330 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1219 transitions. [2023-08-30 10:51:54,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1219 transitions. [2023-08-30 10:51:54,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:51:54,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1219 transitions. [2023-08-30 10:51:54,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 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 10:51:54,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 911.0) internal successors, (3644), 4 states have internal predecessors, (3644), 0 states have call successors, (0), 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 10:51:54,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 911.0) internal successors, (3644), 4 states have internal predecessors, (3644), 0 states have call successors, (0), 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 10:51:54,363 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 131 flow. Second operand 3 states and 1219 transitions. [2023-08-30 10:51:54,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 95 transitions, 410 flow [2023-08-30 10:51:54,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 95 transitions, 392 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 10:51:54,371 INFO L231 Difference]: Finished difference. Result has 54 places, 56 transitions, 164 flow [2023-08-30 10:51:54,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=911, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=54, PETRI_TRANSITIONS=56} [2023-08-30 10:51:54,375 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -8 predicate places. [2023-08-30 10:51:54,375 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 56 transitions, 164 flow [2023-08-30 10:51:54,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 368.6666666666667) internal successors, (1106), 3 states have internal predecessors, (1106), 0 states have call successors, (0), 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 10:51:54,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:51:54,376 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:51:54,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 10:51:54,377 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 10:51:54,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:51:54,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1697066, now seen corresponding path program 1 times [2023-08-30 10:51:54,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:51:54,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357960055] [2023-08-30 10:51:54,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:51:54,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:51:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:51:54,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:51:54,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:51:54,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357960055] [2023-08-30 10:51:54,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357960055] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:51:54,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:51:54,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 10:51:54,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517240128] [2023-08-30 10:51:54,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:51:54,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:51:54,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:51:54,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:51:54,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:51:54,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 911 [2023-08-30 10:51:54,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 56 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 369.0) internal successors, (1107), 3 states have internal predecessors, (1107), 0 states have call successors, (0), 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 10:51:54,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:51:54,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 911 [2023-08-30 10:51:54,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:51:55,772 INFO L130 PetriNetUnfolder]: 9519/13522 cut-off events. [2023-08-30 10:51:55,773 INFO L131 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2023-08-30 10:51:55,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27490 conditions, 13522 events. 9519/13522 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 933. Compared 76169 event pairs, 8314 based on Foata normal form. 0/5563 useless extension candidates. Maximal degree in co-relation 13725. Up to 13522 conditions per place. [2023-08-30 10:51:55,814 INFO L137 encePairwiseOnDemand]: 907/911 looper letters, 52 selfloop transitions, 1 changer transitions 0/53 dead transitions. [2023-08-30 10:51:55,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 258 flow [2023-08-30 10:51:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:51:55,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:51:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1155 transitions. [2023-08-30 10:51:55,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4226125137211855 [2023-08-30 10:51:55,817 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1155 transitions. [2023-08-30 10:51:55,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1155 transitions. [2023-08-30 10:51:55,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:51:55,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1155 transitions. [2023-08-30 10:51:55,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.0) internal successors, (1155), 3 states have internal predecessors, (1155), 0 states have call successors, (0), 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 10:51:55,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 911.0) internal successors, (3644), 4 states have internal predecessors, (3644), 0 states have call successors, (0), 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 10:51:55,880 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 911.0) internal successors, (3644), 4 states have internal predecessors, (3644), 0 states have call successors, (0), 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 10:51:55,880 INFO L175 Difference]: Start difference. First operand has 54 places, 56 transitions, 164 flow. Second operand 3 states and 1155 transitions. [2023-08-30 10:51:55,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 258 flow [2023-08-30 10:51:55,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 10:51:55,881 INFO L231 Difference]: Finished difference. Result has 51 places, 53 transitions, 142 flow [2023-08-30 10:51:55,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=911, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=51, PETRI_TRANSITIONS=53} [2023-08-30 10:51:55,882 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -11 predicate places. [2023-08-30 10:51:55,882 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 53 transitions, 142 flow [2023-08-30 10:51:55,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 369.0) internal successors, (1107), 3 states have internal predecessors, (1107), 0 states have call successors, (0), 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 10:51:55,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:51:55,883 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:51:55,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 10:51:55,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 10:51:55,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:51:55,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1697112, now seen corresponding path program 1 times [2023-08-30 10:51:55,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:51:55,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176356534] [2023-08-30 10:51:55,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:51:55,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:51:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:51:55,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:51:55,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:51:55,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176356534] [2023-08-30 10:51:55,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176356534] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:51:55,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312268550] [2023-08-30 10:51:55,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:51:55,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:51:55,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:51:55,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:51:55,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 10:51:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:51:56,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 10:51:56,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:51:56,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:51:56,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 10:51:56,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:51:56,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312268550] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 10:51:56,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 10:51:56,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-30 10:51:56,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832331856] [2023-08-30 10:51:56,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 10:51:56,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 10:51:56,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:51:56,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 10:51:56,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 10:51:56,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 911 [2023-08-30 10:51:56,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 53 transitions, 142 flow. Second operand has 7 states, 7 states have (on average 369.14285714285717) internal successors, (2584), 7 states have internal predecessors, (2584), 0 states have call successors, (0), 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 10:51:56,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:51:56,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 911 [2023-08-30 10:51:56,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:51:59,263 INFO L130 PetriNetUnfolder]: 23796/33799 cut-off events. [2023-08-30 10:51:59,264 INFO L131 PetriNetUnfolder]: For 300/300 co-relation queries the response was YES. [2023-08-30 10:51:59,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68687 conditions, 33799 events. 23796/33799 cut-off events. For 300/300 co-relation queries the response was YES. Maximal size of possible extension queue 1867. Compared 212863 event pairs, 20785 based on Foata normal form. 0/13896 useless extension candidates. Maximal degree in co-relation 68679. Up to 6765 conditions per place. [2023-08-30 10:51:59,377 INFO L137 encePairwiseOnDemand]: 902/911 looper letters, 203 selfloop transitions, 21 changer transitions 0/224 dead transitions. [2023-08-30 10:51:59,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 224 transitions, 986 flow [2023-08-30 10:51:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 10:51:59,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 10:51:59,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2441 transitions. [2023-08-30 10:51:59,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44657885107939993 [2023-08-30 10:51:59,382 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2441 transitions. [2023-08-30 10:51:59,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2441 transitions. [2023-08-30 10:51:59,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:51:59,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2441 transitions. [2023-08-30 10:51:59,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 406.8333333333333) internal successors, (2441), 6 states have internal predecessors, (2441), 0 states have call successors, (0), 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 10:51:59,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 911.0) internal successors, (6377), 7 states have internal predecessors, (6377), 0 states have call successors, (0), 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 10:51:59,393 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 911.0) internal successors, (6377), 7 states have internal predecessors, (6377), 0 states have call successors, (0), 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 10:51:59,394 INFO L175 Difference]: Start difference. First operand has 51 places, 53 transitions, 142 flow. Second operand 6 states and 2441 transitions. [2023-08-30 10:51:59,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 224 transitions, 986 flow [2023-08-30 10:51:59,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 224 transitions, 985 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:51:59,396 INFO L231 Difference]: Finished difference. Result has 58 places, 68 transitions, 291 flow [2023-08-30 10:51:59,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=911, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=58, PETRI_TRANSITIONS=68} [2023-08-30 10:51:59,397 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2023-08-30 10:51:59,397 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 68 transitions, 291 flow [2023-08-30 10:51:59,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 369.14285714285717) internal successors, (2584), 7 states have internal predecessors, (2584), 0 states have call successors, (0), 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 10:51:59,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:51:59,399 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-30 10:51:59,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 10:51:59,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:51:59,603 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 10:51:59,604 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:51:59,604 INFO L85 PathProgramCache]: Analyzing trace with hash -977664081, now seen corresponding path program 2 times [2023-08-30 10:51:59,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:51:59,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527830319] [2023-08-30 10:51:59,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:51:59,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:51:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:51:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:51:59,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:51:59,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527830319] [2023-08-30 10:51:59,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527830319] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:51:59,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839383917] [2023-08-30 10:51:59,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 10:51:59,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:51:59,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:51:59,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:51:59,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 10:51:59,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 10:51:59,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 10:51:59,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 10:51:59,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:51:59,824 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 10:51:59,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 10:51:59,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839383917] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:51:59,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 10:51:59,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-30 10:51:59,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037150983] [2023-08-30 10:51:59,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:51:59,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:51:59,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:51:59,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:51:59,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-30 10:51:59,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 911 [2023-08-30 10:51:59,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 68 transitions, 291 flow. Second operand has 3 states, 3 states have (on average 372.0) internal successors, (1116), 3 states have internal predecessors, (1116), 0 states have call successors, (0), 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 10:51:59,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:51:59,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 911 [2023-08-30 10:51:59,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:52:02,831 INFO L130 PetriNetUnfolder]: 23796/33796 cut-off events. [2023-08-30 10:52:02,831 INFO L131 PetriNetUnfolder]: For 305/305 co-relation queries the response was YES. [2023-08-30 10:52:02,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68720 conditions, 33796 events. 23796/33796 cut-off events. For 305/305 co-relation queries the response was YES. Maximal size of possible extension queue 1867. Compared 212947 event pairs, 20785 based on Foata normal form. 3/13905 useless extension candidates. Maximal degree in co-relation 68708. Up to 33796 conditions per place. [2023-08-30 10:52:02,936 INFO L137 encePairwiseOnDemand]: 907/911 looper letters, 64 selfloop transitions, 1 changer transitions 0/65 dead transitions. [2023-08-30 10:52:02,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 65 transitions, 391 flow [2023-08-30 10:52:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:52:02,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:52:02,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1161 transitions. [2023-08-30 10:52:02,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.424807903402854 [2023-08-30 10:52:02,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1161 transitions. [2023-08-30 10:52:02,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1161 transitions. [2023-08-30 10:52:02,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:52:02,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1161 transitions. [2023-08-30 10:52:02,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.0) internal successors, (1161), 3 states have internal predecessors, (1161), 0 states have call successors, (0), 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 10:52:02,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 911.0) internal successors, (3644), 4 states have internal predecessors, (3644), 0 states have call successors, (0), 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 10:52:02,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 911.0) internal successors, (3644), 4 states have internal predecessors, (3644), 0 states have call successors, (0), 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 10:52:02,946 INFO L175 Difference]: Start difference. First operand has 58 places, 68 transitions, 291 flow. Second operand 3 states and 1161 transitions. [2023-08-30 10:52:02,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 65 transitions, 391 flow [2023-08-30 10:52:02,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 65 transitions, 319 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-08-30 10:52:02,949 INFO L231 Difference]: Finished difference. Result has 52 places, 65 transitions, 191 flow [2023-08-30 10:52:02,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=911, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=52, PETRI_TRANSITIONS=65} [2023-08-30 10:52:02,950 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -10 predicate places. [2023-08-30 10:52:02,950 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 65 transitions, 191 flow [2023-08-30 10:52:02,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.0) internal successors, (1116), 3 states have internal predecessors, (1116), 0 states have call successors, (0), 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 10:52:02,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:52:02,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:52:02,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-30 10:52:03,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-30 10:52:03,155 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 10:52:03,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:52:03,156 INFO L85 PathProgramCache]: Analyzing trace with hash -190078744, now seen corresponding path program 1 times [2023-08-30 10:52:03,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:52:03,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608219603] [2023-08-30 10:52:03,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:52:03,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:52:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:52:03,207 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 10:52:03,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:52:03,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608219603] [2023-08-30 10:52:03,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608219603] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:52:03,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:52:03,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 10:52:03,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88380228] [2023-08-30 10:52:03,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:52:03,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:52:03,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:52:03,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:52:03,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:52:03,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 911 [2023-08-30 10:52:03,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 65 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 367.6666666666667) internal successors, (1103), 3 states have internal predecessors, (1103), 0 states have call successors, (0), 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 10:52:03,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:52:03,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 911 [2023-08-30 10:52:03,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:52:05,837 INFO L130 PetriNetUnfolder]: 19037/27040 cut-off events. [2023-08-30 10:52:05,838 INFO L131 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES. [2023-08-30 10:52:05,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54954 conditions, 27040 events. 19037/27040 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 1595. Compared 166329 event pairs, 16628 based on Foata normal form. 1/11121 useless extension candidates. Maximal degree in co-relation 54945. Up to 27032 conditions per place. [2023-08-30 10:52:05,975 INFO L137 encePairwiseOnDemand]: 904/911 looper letters, 51 selfloop transitions, 12 changer transitions 0/63 dead transitions. [2023-08-30 10:52:05,975 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 63 transitions, 309 flow [2023-08-30 10:52:05,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:52:05,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:52:05,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1146 transitions. [2023-08-30 10:52:05,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41931942919868276 [2023-08-30 10:52:05,979 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1146 transitions. [2023-08-30 10:52:05,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1146 transitions. [2023-08-30 10:52:05,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:52:05,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1146 transitions. [2023-08-30 10:52:05,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 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 10:52:05,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 911.0) internal successors, (3644), 4 states have internal predecessors, (3644), 0 states have call successors, (0), 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 10:52:05,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 911.0) internal successors, (3644), 4 states have internal predecessors, (3644), 0 states have call successors, (0), 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 10:52:05,987 INFO L175 Difference]: Start difference. First operand has 52 places, 65 transitions, 191 flow. Second operand 3 states and 1146 transitions. [2023-08-30 10:52:05,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 63 transitions, 309 flow [2023-08-30 10:52:05,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 63 transitions, 308 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:52:05,988 INFO L231 Difference]: Finished difference. Result has 54 places, 63 transitions, 220 flow [2023-08-30 10:52:05,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=911, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=54, PETRI_TRANSITIONS=63} [2023-08-30 10:52:05,989 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -8 predicate places. [2023-08-30 10:52:05,989 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 63 transitions, 220 flow [2023-08-30 10:52:05,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 367.6666666666667) internal successors, (1103), 3 states have internal predecessors, (1103), 0 states have call successors, (0), 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 10:52:05,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:52:05,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:52:05,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 10:52:05,990 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 10:52:05,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:52:05,991 INFO L85 PathProgramCache]: Analyzing trace with hash -71077675, now seen corresponding path program 1 times [2023-08-30 10:52:05,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:52:05,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781677040] [2023-08-30 10:52:05,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:52:05,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:52:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:52:06,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-30 10:52:06,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:52:06,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781677040] [2023-08-30 10:52:06,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781677040] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:52:06,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773981757] [2023-08-30 10:52:06,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:52:06,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:52:06,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:52:06,077 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:52:06,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 10:52:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:52:06,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 10:52:06,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:52:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-30 10:52:06,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 10:52:06,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-30 10:52:06,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773981757] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 10:52:06,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 10:52:06,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-30 10:52:06,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262301956] [2023-08-30 10:52:06,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 10:52:06,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 10:52:06,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:52:06,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 10:52:06,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-08-30 10:52:06,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 911 [2023-08-30 10:52:06,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 63 transitions, 220 flow. Second operand has 8 states, 8 states have (on average 361.125) internal successors, (2889), 8 states have internal predecessors, (2889), 0 states have call successors, (0), 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 10:52:06,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:52:06,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 911 [2023-08-30 10:52:06,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:52:06,973 INFO L130 PetriNetUnfolder]: 4760/6772 cut-off events. [2023-08-30 10:52:06,973 INFO L131 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2023-08-30 10:52:06,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13790 conditions, 6772 events. 4760/6772 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 34253 event pairs, 4157 based on Foata normal form. 9/2803 useless extension candidates. Maximal degree in co-relation 13779. Up to 6761 conditions per place. [2023-08-30 10:52:06,998 INFO L137 encePairwiseOnDemand]: 904/911 looper letters, 42 selfloop transitions, 15 changer transitions 0/57 dead transitions. [2023-08-30 10:52:06,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 57 transitions, 292 flow [2023-08-30 10:52:06,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 10:52:06,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 10:52:07,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2220 transitions. [2023-08-30 10:52:07,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4061470911086718 [2023-08-30 10:52:07,004 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2220 transitions. [2023-08-30 10:52:07,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2220 transitions. [2023-08-30 10:52:07,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:52:07,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2220 transitions. [2023-08-30 10:52:07,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 370.0) internal successors, (2220), 6 states have internal predecessors, (2220), 0 states have call successors, (0), 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 10:52:07,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 911.0) internal successors, (6377), 7 states have internal predecessors, (6377), 0 states have call successors, (0), 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 10:52:07,014 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 911.0) internal successors, (6377), 7 states have internal predecessors, (6377), 0 states have call successors, (0), 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 10:52:07,015 INFO L175 Difference]: Start difference. First operand has 54 places, 63 transitions, 220 flow. Second operand 6 states and 2220 transitions. [2023-08-30 10:52:07,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 57 transitions, 292 flow [2023-08-30 10:52:07,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 57 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 10:52:07,016 INFO L231 Difference]: Finished difference. Result has 60 places, 57 transitions, 220 flow [2023-08-30 10:52:07,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=911, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=220, PETRI_PLACES=60, PETRI_TRANSITIONS=57} [2023-08-30 10:52:07,019 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -2 predicate places. [2023-08-30 10:52:07,019 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 220 flow [2023-08-30 10:52:07,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 361.125) internal successors, (2889), 8 states have internal predecessors, (2889), 0 states have call successors, (0), 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 10:52:07,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:52:07,020 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:52:07,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 10:52:07,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:52:07,226 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 10:52:07,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:52:07,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1560603048, now seen corresponding path program 2 times [2023-08-30 10:52:07,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:52:07,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252061865] [2023-08-30 10:52:07,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:52:07,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:52:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:52:07,344 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-30 10:52:07,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:52:07,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252061865] [2023-08-30 10:52:07,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252061865] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:52:07,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056452049] [2023-08-30 10:52:07,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 10:52:07,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:52:07,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:52:07,346 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:52:07,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 10:52:07,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 10:52:07,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 10:52:07,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-30 10:52:07,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:52:07,524 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-30 10:52:07,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 10:52:07,556 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-30 10:52:07,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056452049] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 10:52:07,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 10:52:07,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-30 10:52:07,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843543010] [2023-08-30 10:52:07,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 10:52:07,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 10:52:07,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:52:07,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 10:52:07,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2023-08-30 10:52:07,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 911 [2023-08-30 10:52:07,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 220 flow. Second operand has 13 states, 13 states have (on average 360.6923076923077) internal successors, (4689), 13 states have internal predecessors, (4689), 0 states have call successors, (0), 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 10:52:07,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:52:07,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 911 [2023-08-30 10:52:07,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:52:08,458 INFO L130 PetriNetUnfolder]: 4760/6775 cut-off events. [2023-08-30 10:52:08,459 INFO L131 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2023-08-30 10:52:08,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13823 conditions, 6775 events. 4760/6775 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 34253 event pairs, 4157 based on Foata normal form. 3/2800 useless extension candidates. Maximal degree in co-relation 13809. Up to 6761 conditions per place. [2023-08-30 10:52:08,490 INFO L137 encePairwiseOnDemand]: 904/911 looper letters, 42 selfloop transitions, 18 changer transitions 0/60 dead transitions. [2023-08-30 10:52:08,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 60 transitions, 352 flow [2023-08-30 10:52:08,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 10:52:08,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 10:52:08,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2576 transitions. [2023-08-30 10:52:08,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4039517014270033 [2023-08-30 10:52:08,497 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2576 transitions. [2023-08-30 10:52:08,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2576 transitions. [2023-08-30 10:52:08,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:52:08,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2576 transitions. [2023-08-30 10:52:08,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 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 10:52:08,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 911.0) internal successors, (7288), 8 states have internal predecessors, (7288), 0 states have call successors, (0), 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 10:52:08,509 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 911.0) internal successors, (7288), 8 states have internal predecessors, (7288), 0 states have call successors, (0), 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 10:52:08,509 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 220 flow. Second operand 7 states and 2576 transitions. [2023-08-30 10:52:08,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 60 transitions, 352 flow [2023-08-30 10:52:08,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 60 transitions, 322 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 10:52:08,511 INFO L231 Difference]: Finished difference. Result has 62 places, 60 transitions, 252 flow [2023-08-30 10:52:08,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=911, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=252, PETRI_PLACES=62, PETRI_TRANSITIONS=60} [2023-08-30 10:52:08,512 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 0 predicate places. [2023-08-30 10:52:08,512 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 60 transitions, 252 flow [2023-08-30 10:52:08,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 360.6923076923077) internal successors, (4689), 13 states have internal predecessors, (4689), 0 states have call successors, (0), 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 10:52:08,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:52:08,513 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:52:08,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 10:52:08,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:52:08,719 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 10:52:08,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:52:08,720 INFO L85 PathProgramCache]: Analyzing trace with hash -735559148, now seen corresponding path program 1 times [2023-08-30 10:52:08,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:52:08,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109907384] [2023-08-30 10:52:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:52:08,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:52:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:52:08,815 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-30 10:52:08,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:52:08,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109907384] [2023-08-30 10:52:08,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109907384] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:52:08,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:52:08,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 10:52:08,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514700737] [2023-08-30 10:52:08,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:52:08,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:52:08,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:52:08,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:52:08,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:52:08,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 911 [2023-08-30 10:52:08,829 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 60 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 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 10:52:08,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:52:08,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 911 [2023-08-30 10:52:08,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:52:09,878 INFO L130 PetriNetUnfolder]: 8190/11655 cut-off events. [2023-08-30 10:52:09,879 INFO L131 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2023-08-30 10:52:09,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23741 conditions, 11655 events. 8190/11655 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 706. Compared 66844 event pairs, 4157 based on Foata normal form. 0/4801 useless extension candidates. Maximal degree in co-relation 23726. Up to 6776 conditions per place. [2023-08-30 10:52:09,926 INFO L137 encePairwiseOnDemand]: 907/911 looper letters, 92 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-08-30 10:52:09,926 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 94 transitions, 513 flow [2023-08-30 10:52:09,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:52:09,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:52:09,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1206 transitions. [2023-08-30 10:52:09,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44127332601536773 [2023-08-30 10:52:09,929 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1206 transitions. [2023-08-30 10:52:09,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1206 transitions. [2023-08-30 10:52:09,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:52:09,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1206 transitions. [2023-08-30 10:52:09,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 0 states have call successors, (0), 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 10:52:09,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 911.0) internal successors, (3644), 4 states have internal predecessors, (3644), 0 states have call successors, (0), 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 10:52:09,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 911.0) internal successors, (3644), 4 states have internal predecessors, (3644), 0 states have call successors, (0), 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 10:52:09,934 INFO L175 Difference]: Start difference. First operand has 62 places, 60 transitions, 252 flow. Second operand 3 states and 1206 transitions. [2023-08-30 10:52:09,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 94 transitions, 513 flow [2023-08-30 10:52:09,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 94 transitions, 483 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 10:52:09,935 INFO L231 Difference]: Finished difference. Result has 61 places, 61 transitions, 236 flow [2023-08-30 10:52:09,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=911, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=61, PETRI_TRANSITIONS=61} [2023-08-30 10:52:09,936 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -1 predicate places. [2023-08-30 10:52:09,936 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 61 transitions, 236 flow [2023-08-30 10:52:09,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 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 10:52:09,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:52:09,937 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:52:09,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 10:52:09,937 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 10:52:09,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:52:09,937 INFO L85 PathProgramCache]: Analyzing trace with hash -735559147, now seen corresponding path program 3 times [2023-08-30 10:52:09,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:52:09,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313395996] [2023-08-30 10:52:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:52:09,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:52:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:52:10,674 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-08-30 10:52:10,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:52:10,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313395996] [2023-08-30 10:52:10,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313395996] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:52:10,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555078933] [2023-08-30 10:52:10,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 10:52:10,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:52:10,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:52:10,676 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:52:10,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-30 10:52:10,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-30 10:52:10,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 10:52:10,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-30 10:52:10,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:52:10,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-30 10:52:10,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-30 10:52:11,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 10:52:11,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-08-30 10:52:11,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 10:52:11,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-08-30 10:52:11,100 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-30 10:52:11,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2023-08-30 10:52:11,154 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-30 10:52:11,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 30 [2023-08-30 10:52:11,200 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-30 10:52:11,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-30 10:52:11,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:52:11,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:52:11,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:52:11,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:52:11,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:52:11,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 10:52:11,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:52:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-08-30 10:52:11,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 10:52:33,825 INFO L321 Elim1Store]: treesize reduction 212, result has 30.5 percent of original size [2023-08-30 10:52:33,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 108 [2023-08-30 10:52:33,894 INFO L321 Elim1Store]: treesize reduction 24, result has 70.4 percent of original size [2023-08-30 10:52:33,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 210 treesize of output 226 [2023-08-30 10:52:33,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2023-08-30 10:52:33,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2023-08-30 10:52:34,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-08-30 10:52:34,151 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-08-30 10:52:34,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555078933] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 10:52:34,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 10:52:34,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-30 10:52:34,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358052545] [2023-08-30 10:52:34,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 10:52:34,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-30 10:52:34,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:52:34,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-30 10:52:34,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=807, Unknown=12, NotChecked=0, Total=992 [2023-08-30 10:52:36,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:52:38,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:52:40,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:52:42,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:52:45,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:52:47,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:52:49,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:52:51,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:52:53,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:52:55,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:52:57,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:52:59,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:01,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:03,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:05,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:07,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:09,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:11,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:13,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:15,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:17,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:19,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:20,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:20,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 911 [2023-08-30 10:53:20,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 61 transitions, 236 flow. Second operand has 32 states, 32 states have (on average 306.3125) internal successors, (9802), 32 states have internal predecessors, (9802), 0 states have call successors, (0), 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 10:53:20,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:53:20,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 911 [2023-08-30 10:53:20,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:53:23,158 INFO L130 PetriNetUnfolder]: 10269/15181 cut-off events. [2023-08-30 10:53:23,158 INFO L131 PetriNetUnfolder]: For 1032/1032 co-relation queries the response was YES. [2023-08-30 10:53:23,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32040 conditions, 15181 events. 10269/15181 cut-off events. For 1032/1032 co-relation queries the response was YES. Maximal size of possible extension queue 1077. Compared 97169 event pairs, 5107 based on Foata normal form. 0/6724 useless extension candidates. Maximal degree in co-relation 32024. Up to 10246 conditions per place. [2023-08-30 10:53:23,200 INFO L137 encePairwiseOnDemand]: 895/911 looper letters, 76 selfloop transitions, 25 changer transitions 0/101 dead transitions. [2023-08-30 10:53:23,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 101 transitions, 533 flow [2023-08-30 10:53:23,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 10:53:23,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 10:53:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3752 transitions. [2023-08-30 10:53:23,207 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34321258690084155 [2023-08-30 10:53:23,207 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3752 transitions. [2023-08-30 10:53:23,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3752 transitions. [2023-08-30 10:53:23,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:53:23,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3752 transitions. [2023-08-30 10:53:23,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 312.6666666666667) internal successors, (3752), 12 states have internal predecessors, (3752), 0 states have call successors, (0), 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 10:53:23,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 911.0) internal successors, (11843), 13 states have internal predecessors, (11843), 0 states have call successors, (0), 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 10:53:23,222 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 911.0) internal successors, (11843), 13 states have internal predecessors, (11843), 0 states have call successors, (0), 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 10:53:23,222 INFO L175 Difference]: Start difference. First operand has 61 places, 61 transitions, 236 flow. Second operand 12 states and 3752 transitions. [2023-08-30 10:53:23,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 101 transitions, 533 flow [2023-08-30 10:53:23,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 101 transitions, 529 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:53:23,224 INFO L231 Difference]: Finished difference. Result has 74 places, 74 transitions, 350 flow [2023-08-30 10:53:23,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=911, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=350, PETRI_PLACES=74, PETRI_TRANSITIONS=74} [2023-08-30 10:53:23,225 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 12 predicate places. [2023-08-30 10:53:23,225 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 74 transitions, 350 flow [2023-08-30 10:53:23,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 306.3125) internal successors, (9802), 32 states have internal predecessors, (9802), 0 states have call successors, (0), 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 10:53:23,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:53:23,227 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:53:23,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-30 10:53:23,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:53:23,435 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 10:53:23,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:53:23,435 INFO L85 PathProgramCache]: Analyzing trace with hash -735559151, now seen corresponding path program 1 times [2023-08-30 10:53:23,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:53:23,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566880587] [2023-08-30 10:53:23,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:53:23,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:53:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:53:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-08-30 10:53:24,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:53:24,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566880587] [2023-08-30 10:53:24,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566880587] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:53:24,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475902457] [2023-08-30 10:53:24,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:53:24,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:53:24,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:53:24,705 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:53:24,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-30 10:53:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:53:24,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 52 conjunts are in the unsatisfiable core [2023-08-30 10:53:24,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:53:24,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 10:53:24,905 INFO L321 Elim1Store]: treesize reduction 56, result has 37.8 percent of original size [2023-08-30 10:53:24,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 39 [2023-08-30 10:53:24,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-30 10:53:24,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 10:53:24,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-08-30 10:53:25,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 10:53:25,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-08-30 10:53:25,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 10:53:25,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-08-30 10:53:25,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 10:53:25,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-08-30 10:53:25,120 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-30 10:53:25,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-30 10:53:25,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:53:25,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:53:25,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:53:25,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:53:25,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:53:25,252 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-30 10:53:25,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-30 10:53:25,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:53:25,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:53:25,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:53:25,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:53:25,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:53:25,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 10:53:25,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 10:53:25,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-08-30 10:53:25,391 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-30 10:53:25,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 10:53:42,610 INFO L321 Elim1Store]: treesize reduction 244, result has 20.0 percent of original size [2023-08-30 10:53:42,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 79 [2023-08-30 10:53:42,622 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 10:53:42,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 137 [2023-08-30 10:53:42,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 116 [2023-08-30 10:53:42,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 112 [2023-08-30 10:53:42,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2023-08-30 10:53:42,845 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 1 proven. 20 refuted. 4 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-30 10:53:42,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475902457] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 10:53:42,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 10:53:42,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 37 [2023-08-30 10:53:42,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052810767] [2023-08-30 10:53:42,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 10:53:42,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-08-30 10:53:42,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:53:42,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-08-30 10:53:42,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1265, Unknown=28, NotChecked=0, Total=1482 [2023-08-30 10:53:44,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:47,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:49,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:51,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:53,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:55,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:57,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:53:59,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:01,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:03,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:05,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:07,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:09,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:11,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:13,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:16,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:18,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:20,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:22,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:24,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:26,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:28,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:30,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:32,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:34,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:36,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:38,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:40,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:42,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:44,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:46,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:48,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:50,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:52,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:54,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:56,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 10:54:56,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 911 [2023-08-30 10:54:56,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 74 transitions, 350 flow. Second operand has 39 states, 39 states have (on average 305.2564102564103) internal successors, (11905), 39 states have internal predecessors, (11905), 0 states have call successors, (0), 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 10:54:56,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:54:56,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 911 [2023-08-30 10:54:56,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:54:59,729 INFO L130 PetriNetUnfolder]: 12522/18486 cut-off events. [2023-08-30 10:54:59,729 INFO L131 PetriNetUnfolder]: For 5381/5381 co-relation queries the response was YES. [2023-08-30 10:54:59,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42102 conditions, 18486 events. 12522/18486 cut-off events. For 5381/5381 co-relation queries the response was YES. Maximal size of possible extension queue 1370. Compared 118793 event pairs, 9197 based on Foata normal form. 0/8939 useless extension candidates. Maximal degree in co-relation 42082. Up to 13151 conditions per place. [2023-08-30 10:54:59,814 INFO L137 encePairwiseOnDemand]: 899/911 looper letters, 110 selfloop transitions, 21 changer transitions 0/131 dead transitions. [2023-08-30 10:54:59,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 131 transitions, 761 flow [2023-08-30 10:54:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 10:54:59,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 10:54:59,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 4680 transitions. [2023-08-30 10:54:59,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3424807903402854 [2023-08-30 10:54:59,821 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 4680 transitions. [2023-08-30 10:54:59,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 4680 transitions. [2023-08-30 10:54:59,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:54:59,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 4680 transitions. [2023-08-30 10:54:59,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 312.0) internal successors, (4680), 15 states have internal predecessors, (4680), 0 states have call successors, (0), 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 10:54:59,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 911.0) internal successors, (14576), 16 states have internal predecessors, (14576), 0 states have call successors, (0), 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 10:54:59,836 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 911.0) internal successors, (14576), 16 states have internal predecessors, (14576), 0 states have call successors, (0), 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 10:54:59,836 INFO L175 Difference]: Start difference. First operand has 74 places, 74 transitions, 350 flow. Second operand 15 states and 4680 transitions. [2023-08-30 10:54:59,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 131 transitions, 761 flow [2023-08-30 10:54:59,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 131 transitions, 744 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-30 10:54:59,841 INFO L231 Difference]: Finished difference. Result has 88 places, 78 transitions, 412 flow [2023-08-30 10:54:59,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=911, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=412, PETRI_PLACES=88, PETRI_TRANSITIONS=78} [2023-08-30 10:54:59,842 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 26 predicate places. [2023-08-30 10:54:59,842 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 78 transitions, 412 flow [2023-08-30 10:54:59,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 305.2564102564103) internal successors, (11905), 39 states have internal predecessors, (11905), 0 states have call successors, (0), 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 10:54:59,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:54:59,844 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:54:59,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-08-30 10:55:00,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:55:00,051 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 10:55:00,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:55:00,051 INFO L85 PathProgramCache]: Analyzing trace with hash -735559152, now seen corresponding path program 1 times [2023-08-30 10:55:00,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:55:00,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818806642] [2023-08-30 10:55:00,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:55:00,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:55:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:55:00,952 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-30 10:55:00,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:55:00,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818806642] [2023-08-30 10:55:00,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818806642] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:55:00,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11854689] [2023-08-30 10:55:00,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:55:00,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:55:00,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:55:00,965 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:55:00,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-30 10:55:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:55:01,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 73 conjunts are in the unsatisfiable core [2023-08-30 10:55:01,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:55:01,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 10:55:01,146 INFO L321 Elim1Store]: treesize reduction 56, result has 37.8 percent of original size [2023-08-30 10:55:01,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 39 [2023-08-30 10:55:01,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-30 10:55:01,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-30 10:55:01,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-30 10:55:01,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-30 10:55:01,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-30 10:55:01,356 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-30 10:55:01,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-30 10:55:01,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-30 10:55:01,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-30 10:55:01,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-30 10:55:01,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-30 10:55:01,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-30 10:55:01,616 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-30 10:55:01,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-30 10:55:01,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-30 10:55:01,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-30 10:55:01,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-30 10:55:01,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-30 10:55:01,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-30 10:55:01,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 10:55:01,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-30 10:55:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 10:55:01,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 10:55:02,088 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_697 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_697))) (let ((.cse0 (select (select .cse1 ~o_2~0.base) c_~o_2~0.offset))) (or (< .cse0 0) (< 0 .cse0) (< (select (select .cse1 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse0 2147483648)))))) (forall ((v_ArrVal_697 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_697))) (let ((.cse2 (select (select .cse3 ~o_2~0.base) c_~o_2~0.offset))) (or (< 9223372039002259455 .cse2) (<= .cse2 0) (< (select (select .cse3 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse2 2147483648))))))) is different from false [2023-08-30 10:55:02,110 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_696 (Array Int Int)) (v_ArrVal_697 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_696) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_697))) (let ((.cse0 (select (select .cse1 ~o_2~0.base) c_~o_2~0.offset))) (or (< 0 .cse0) (< .cse0 0) (< (select (select .cse1 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse0 2147483648)))))) (forall ((v_ArrVal_696 (Array Int Int)) (v_ArrVal_697 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_696) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_697))) (let ((.cse2 (select (select .cse3 ~o_2~0.base) c_~o_2~0.offset))) (or (<= .cse2 0) (< (select (select .cse3 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse2 2147483648)) (< 9223372039002259455 .cse2)))))) is different from false [2023-08-30 10:55:28,374 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 10:55:28,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 511 treesize of output 297 [2023-08-30 10:55:28,615 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 10:55:28,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 24257 treesize of output 23885 [2023-08-30 10:55:29,738 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 10:55:29,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4279 treesize of output 4216 [2023-08-30 10:55:29,846 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 10:55:29,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4207 treesize of output 4072 [2023-08-30 10:55:29,978 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 10:55:29,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4063 treesize of output 3784 [2023-08-30 10:55:30,157 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 10:55:30,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3837 treesize of output 3793 [2023-08-30 10:55:30,299 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 10:55:30,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3723 treesize of output 3588 [2023-08-30 10:55:30,435 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 10:55:30,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3579 treesize of output 3552 [2023-08-30 10:55:30,541 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 10:55:30,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3543 treesize of output 3480 Killed by 15