./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i --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/pthread-ext/37_stack_lock_p0_vs_concur.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a8bcba962b15df67a0e136eef2e702f216cc120b7626a7b8dc8877f6ecaf3765 --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 08:35:22,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:35:22,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:35:22,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:35:22,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:35:22,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:35:22,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:35:22,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:35:22,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:35:22,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:35:22,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:35:22,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:35:22,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:35:22,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:35:22,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:35:22,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:35:22,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:35:22,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:35:22,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:35:22,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:35:22,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:35:22,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:35:22,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:35:22,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:35:22,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:35:22,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:35:22,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:35:22,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:35:22,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:35:22,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:35:22,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:35:22,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:35:22,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:35:22,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:35:22,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:35:22,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:35:22,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:35:22,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:35:22,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:35:22,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:35:22,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:35:22,143 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:35:22,191 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:35:22,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:35:22,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:35:22,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:35:22,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:35:22,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:35:22,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:35:22,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:35:22,195 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:35:22,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:35:22,196 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:35:22,196 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:35:22,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:35:22,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:35:22,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:35:22,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:35:22,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:35:22,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:35:22,198 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:35:22,198 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:35:22,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:35:22,198 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:35:22,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:35:22,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:35:22,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:35:22,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:35:22,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:35:22,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:35:22,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:35:22,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:35:22,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:35:22,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:35:22,200 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:35:22,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:35:22,201 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:35:22,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:35:22,201 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:35:22,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8bcba962b15df67a0e136eef2e702f216cc120b7626a7b8dc8877f6ecaf3765 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:35:22,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:35:22,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:35:22,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:35:22,568 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:35:22,569 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:35:22,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i [2023-08-30 08:35:23,720 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:35:23,946 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:35:23,947 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i [2023-08-30 08:35:23,957 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d26d9e97/3cc195773e8c4a79b679488a482802fe/FLAGfb6a51cb8 [2023-08-30 08:35:23,973 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d26d9e97/3cc195773e8c4a79b679488a482802fe [2023-08-30 08:35:23,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:35:23,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:35:23,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:35:23,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:35:23,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:35:23,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:35:23" (1/1) ... [2023-08-30 08:35:23,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f838da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:23, skipping insertion in model container [2023-08-30 08:35:23,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:35:23" (1/1) ... [2023-08-30 08:35:23,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:35:24,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:35:24,304 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i[30726,30739] [2023-08-30 08:35:24,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:35:24,322 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:35:24,374 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i[30726,30739] [2023-08-30 08:35:24,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:35:24,405 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:35:24,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24 WrapperNode [2023-08-30 08:35:24,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:35:24,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:35:24,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:35:24,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:35:24,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24" (1/1) ... [2023-08-30 08:35:24,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24" (1/1) ... [2023-08-30 08:35:24,443 INFO L138 Inliner]: procedures = 171, calls = 26, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 93 [2023-08-30 08:35:24,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:35:24,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:35:24,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:35:24,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:35:24,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24" (1/1) ... [2023-08-30 08:35:24,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24" (1/1) ... [2023-08-30 08:35:24,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24" (1/1) ... [2023-08-30 08:35:24,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24" (1/1) ... [2023-08-30 08:35:24,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24" (1/1) ... [2023-08-30 08:35:24,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24" (1/1) ... [2023-08-30 08:35:24,464 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24" (1/1) ... [2023-08-30 08:35:24,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24" (1/1) ... [2023-08-30 08:35:24,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:35:24,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:35:24,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:35:24,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:35:24,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24" (1/1) ... [2023-08-30 08:35:24,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:35:24,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:35:24,496 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 08:35:24,500 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 08:35:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 08:35:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-30 08:35:24,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-30 08:35:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:35:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:35:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:35:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:35:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:35:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:35:24,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:35:24,533 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 08:35:24,633 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:35:24,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:35:24,907 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:35:25,015 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:35:25,016 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-30 08:35:25,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:35:25 BoogieIcfgContainer [2023-08-30 08:35:25,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:35:25,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:35:25,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:35:25,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:35:25,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:35:23" (1/3) ... [2023-08-30 08:35:25,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751e9e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:35:25, skipping insertion in model container [2023-08-30 08:35:25,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:35:24" (2/3) ... [2023-08-30 08:35:25,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751e9e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:35:25, skipping insertion in model container [2023-08-30 08:35:25,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:35:25" (3/3) ... [2023-08-30 08:35:25,027 INFO L112 eAbstractionObserver]: Analyzing ICFG 37_stack_lock_p0_vs_concur.i [2023-08-30 08:35:25,034 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:35:25,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:35:25,043 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-30 08:35:25,043 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:35:25,118 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:35:25,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 86 transitions, 177 flow [2023-08-30 08:35:25,232 INFO L130 PetriNetUnfolder]: 7/96 cut-off events. [2023-08-30 08:35:25,232 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:35:25,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 7/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 124 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 70. Up to 4 conditions per place. [2023-08-30 08:35:25,237 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 86 transitions, 177 flow [2023-08-30 08:35:25,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 86 transitions, 177 flow [2023-08-30 08:35:25,246 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:35:25,267 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 86 transitions, 177 flow [2023-08-30 08:35:25,273 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 86 transitions, 177 flow [2023-08-30 08:35:25,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 86 transitions, 177 flow [2023-08-30 08:35:25,301 INFO L130 PetriNetUnfolder]: 7/96 cut-off events. [2023-08-30 08:35:25,301 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:35:25,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 7/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 124 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 70. Up to 4 conditions per place. [2023-08-30 08:35:25,305 INFO L119 LiptonReduction]: Number of co-enabled transitions 1508 [2023-08-30 08:35:27,222 INFO L134 LiptonReduction]: Checked pairs total: 2224 [2023-08-30 08:35:27,222 INFO L136 LiptonReduction]: Total number of compositions: 80 [2023-08-30 08:35:27,234 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:35:27,242 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;@670aa03b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:35:27,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 08:35:27,249 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-30 08:35:27,250 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:35:27,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:27,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:35:27,251 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:27,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:27,254 INFO L85 PathProgramCache]: Analyzing trace with hash 432607244, now seen corresponding path program 1 times [2023-08-30 08:35:27,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:27,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368885049] [2023-08-30 08:35:27,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:27,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:27,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:27,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:27,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368885049] [2023-08-30 08:35:27,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368885049] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:35:27,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:35:27,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:35:27,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51545799] [2023-08-30 08:35:27,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:35:27,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 08:35:27,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:35:27,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 08:35:27,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 08:35:27,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 166 [2023-08-30 08:35:27,498 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 28 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 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 08:35:27,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:35:27,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 166 [2023-08-30 08:35:27,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:35:27,575 INFO L130 PetriNetUnfolder]: 35/89 cut-off events. [2023-08-30 08:35:27,575 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:35:27,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 89 events. 35/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 266 event pairs, 29 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 164. Up to 85 conditions per place. [2023-08-30 08:35:27,577 INFO L137 encePairwiseOnDemand]: 161/166 looper letters, 20 selfloop transitions, 0 changer transitions 0/23 dead transitions. [2023-08-30 08:35:27,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 23 transitions, 91 flow [2023-08-30 08:35:27,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 08:35:27,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 08:35:27,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 163 transitions. [2023-08-30 08:35:27,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49096385542168675 [2023-08-30 08:35:27,593 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 163 transitions. [2023-08-30 08:35:27,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 163 transitions. [2023-08-30 08:35:27,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:35:27,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 163 transitions. [2023-08-30 08:35:27,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 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 08:35:27,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 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 08:35:27,607 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 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 08:35:27,609 INFO L175 Difference]: Start difference. First operand has 29 places, 28 transitions, 61 flow. Second operand 2 states and 163 transitions. [2023-08-30 08:35:27,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 23 transitions, 91 flow [2023-08-30 08:35:27,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 91 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 08:35:27,612 INFO L231 Difference]: Finished difference. Result has 25 places, 23 transitions, 51 flow [2023-08-30 08:35:27,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=51, PETRI_PLACES=25, PETRI_TRANSITIONS=23} [2023-08-30 08:35:27,618 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -4 predicate places. [2023-08-30 08:35:27,619 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 23 transitions, 51 flow [2023-08-30 08:35:27,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 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 08:35:27,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:27,619 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:35:27,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:35:27,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:27,622 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:27,622 INFO L85 PathProgramCache]: Analyzing trace with hash 525923074, now seen corresponding path program 1 times [2023-08-30 08:35:27,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:27,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83830178] [2023-08-30 08:35:27,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:27,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:27,715 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 08:35:27,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:27,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83830178] [2023-08-30 08:35:27,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83830178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:35:27,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:35:27,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:35:27,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553667169] [2023-08-30 08:35:27,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:35:27,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:35:27,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:35:27,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:35:27,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:35:27,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 166 [2023-08-30 08:35:27,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 23 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 08:35:27,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:35:27,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 166 [2023-08-30 08:35:27,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:35:27,779 INFO L130 PetriNetUnfolder]: 38/98 cut-off events. [2023-08-30 08:35:27,780 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:35:27,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 98 events. 38/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 325 event pairs, 2 based on Foata normal form. 3/79 useless extension candidates. Maximal degree in co-relation 193. Up to 82 conditions per place. [2023-08-30 08:35:27,781 INFO L137 encePairwiseOnDemand]: 161/166 looper letters, 22 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-08-30 08:35:27,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 27 transitions, 107 flow [2023-08-30 08:35:27,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:35:27,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:35:27,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2023-08-30 08:35:27,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.463855421686747 [2023-08-30 08:35:27,788 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2023-08-30 08:35:27,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2023-08-30 08:35:27,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:35:27,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2023-08-30 08:35:27,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 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 08:35:27,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 08:35:27,793 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 08:35:27,793 INFO L175 Difference]: Start difference. First operand has 25 places, 23 transitions, 51 flow. Second operand 3 states and 231 transitions. [2023-08-30 08:35:27,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 27 transitions, 107 flow [2023-08-30 08:35:27,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 107 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 08:35:27,795 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 67 flow [2023-08-30 08:35:27,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=28, PETRI_TRANSITIONS=24} [2023-08-30 08:35:27,796 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2023-08-30 08:35:27,796 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 67 flow [2023-08-30 08:35:27,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 08:35:27,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:27,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:35:27,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:35:27,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:27,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:27,800 INFO L85 PathProgramCache]: Analyzing trace with hash -268210257, now seen corresponding path program 1 times [2023-08-30 08:35:27,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:27,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162953083] [2023-08-30 08:35:27,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:27,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:28,038 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 08:35:28,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:28,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162953083] [2023-08-30 08:35:28,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162953083] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:35:28,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:35:28,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:35:28,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934397616] [2023-08-30 08:35:28,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:35:28,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:35:28,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:35:28,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:35:28,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:35:28,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 166 [2023-08-30 08:35:28,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 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 08:35:28,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:35:28,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 166 [2023-08-30 08:35:28,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:35:28,154 INFO L130 PetriNetUnfolder]: 52/134 cut-off events. [2023-08-30 08:35:28,156 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:35:28,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 134 events. 52/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 355 event pairs, 4 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 288. Up to 92 conditions per place. [2023-08-30 08:35:28,160 INFO L137 encePairwiseOnDemand]: 157/166 looper letters, 29 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2023-08-30 08:35:28,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 35 transitions, 155 flow [2023-08-30 08:35:28,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:35:28,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:35:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 290 transitions. [2023-08-30 08:35:28,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4367469879518072 [2023-08-30 08:35:28,162 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 290 transitions. [2023-08-30 08:35:28,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 290 transitions. [2023-08-30 08:35:28,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:35:28,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 290 transitions. [2023-08-30 08:35:28,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 0 states have call successors, (0), 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 08:35:28,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 0 states have call successors, (0), 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 08:35:28,167 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 0 states have call successors, (0), 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 08:35:28,168 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 67 flow. Second operand 4 states and 290 transitions. [2023-08-30 08:35:28,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 35 transitions, 155 flow [2023-08-30 08:35:28,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:35:28,170 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 94 flow [2023-08-30 08:35:28,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2023-08-30 08:35:28,171 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2023-08-30 08:35:28,171 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 94 flow [2023-08-30 08:35:28,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 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 08:35:28,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:28,172 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:35:28,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:35:28,173 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:28,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:28,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2086574309, now seen corresponding path program 1 times [2023-08-30 08:35:28,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:28,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147656671] [2023-08-30 08:35:28,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:28,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:28,479 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 08:35:28,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:28,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147656671] [2023-08-30 08:35:28,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147656671] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:35:28,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155299984] [2023-08-30 08:35:28,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:28,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:28,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:35:28,485 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 08:35:28,508 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 08:35:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:28,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 23 conjunts are in the unsatisfiable core [2023-08-30 08:35:28,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:35:28,668 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 08:35:28,746 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-30 08:35:28,747 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 08:35:28,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-30 08:35:28,916 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 08:35:28,930 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 08:35:28,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 08:35:29,077 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:29,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 60 [2023-08-30 08:35:29,102 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:29,103 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 1 case distinctions, treesize of input 9 treesize of output 8 [2023-08-30 08:35:29,189 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 0 case distinctions, treesize of input 64 treesize of output 52 [2023-08-30 08:35:29,194 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 7 treesize of output 5 [2023-08-30 08:35:29,204 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 7 treesize of output 5 [2023-08-30 08:35:29,222 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 50 treesize of output 42 [2023-08-30 08:35:29,228 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 38 treesize of output 36 [2023-08-30 08:35:29,512 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 08:35:29,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155299984] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 08:35:29,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 08:35:29,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 12 [2023-08-30 08:35:29,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874501744] [2023-08-30 08:35:29,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 08:35:29,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:35:29,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:35:29,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:35:29,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=142, Unknown=1, NotChecked=0, Total=182 [2023-08-30 08:35:29,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 166 [2023-08-30 08:35:29,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 94 flow. Second operand has 14 states, 14 states have (on average 50.92857142857143) internal successors, (713), 14 states have internal predecessors, (713), 0 states have call successors, (0), 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 08:35:29,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:35:29,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 166 [2023-08-30 08:35:29,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:35:30,314 INFO L130 PetriNetUnfolder]: 77/230 cut-off events. [2023-08-30 08:35:30,314 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-08-30 08:35:30,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 230 events. 77/230 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 799 event pairs, 4 based on Foata normal form. 3/220 useless extension candidates. Maximal degree in co-relation 574. Up to 73 conditions per place. [2023-08-30 08:35:30,316 INFO L137 encePairwiseOnDemand]: 150/166 looper letters, 44 selfloop transitions, 30 changer transitions 0/76 dead transitions. [2023-08-30 08:35:30,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 76 transitions, 391 flow [2023-08-30 08:35:30,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:35:30,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:35:30,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 671 transitions. [2023-08-30 08:35:30,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33684738955823296 [2023-08-30 08:35:30,319 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 671 transitions. [2023-08-30 08:35:30,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 671 transitions. [2023-08-30 08:35:30,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:35:30,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 671 transitions. [2023-08-30 08:35:30,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.916666666666664) internal successors, (671), 12 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:35:30,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 166.0) internal successors, (2158), 13 states have internal predecessors, (2158), 0 states have call successors, (0), 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 08:35:30,326 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 166.0) internal successors, (2158), 13 states have internal predecessors, (2158), 0 states have call successors, (0), 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 08:35:30,326 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 94 flow. Second operand 12 states and 671 transitions. [2023-08-30 08:35:30,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 76 transitions, 391 flow [2023-08-30 08:35:30,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 76 transitions, 385 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:35:30,330 INFO L231 Difference]: Finished difference. Result has 46 places, 49 transitions, 316 flow [2023-08-30 08:35:30,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=316, PETRI_PLACES=46, PETRI_TRANSITIONS=49} [2023-08-30 08:35:30,330 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2023-08-30 08:35:30,331 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 49 transitions, 316 flow [2023-08-30 08:35:30,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 50.92857142857143) internal successors, (713), 14 states have internal predecessors, (713), 0 states have call successors, (0), 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 08:35:30,331 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:30,331 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:35:30,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-30 08:35:30,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:30,543 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:30,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:30,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1196759041, now seen corresponding path program 1 times [2023-08-30 08:35:30,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:30,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691738] [2023-08-30 08:35:30,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:30,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:30,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:30,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:30,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691738] [2023-08-30 08:35:30,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691738] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:35:30,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038676933] [2023-08-30 08:35:30,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:30,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:30,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:35:30,657 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 08:35:30,658 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 08:35:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:30,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 08:35:30,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:35:30,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:30,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 08:35:30,809 INFO L321 Elim1Store]: treesize reduction 12, result has 7.7 percent of original size [2023-08-30 08:35:30,810 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 2 case distinctions, treesize of input 41 treesize of output 1 [2023-08-30 08:35:30,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:30,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038676933] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-30 08:35:30,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-30 08:35:30,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2, 2] total 5 [2023-08-30 08:35:30,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211543616] [2023-08-30 08:35:30,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:35:30,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:35:30,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:35:30,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:35:30,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:35:30,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 166 [2023-08-30 08:35:30,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 49 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 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 08:35:30,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:35:30,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 166 [2023-08-30 08:35:30,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:35:30,859 INFO L130 PetriNetUnfolder]: 70/216 cut-off events. [2023-08-30 08:35:30,860 INFO L131 PetriNetUnfolder]: For 312/313 co-relation queries the response was YES. [2023-08-30 08:35:30,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 216 events. 70/216 cut-off events. For 312/313 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 735 event pairs, 51 based on Foata normal form. 3/215 useless extension candidates. Maximal degree in co-relation 762. Up to 185 conditions per place. [2023-08-30 08:35:30,862 INFO L137 encePairwiseOnDemand]: 164/166 looper letters, 41 selfloop transitions, 1 changer transitions 0/47 dead transitions. [2023-08-30 08:35:30,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 47 transitions, 385 flow [2023-08-30 08:35:30,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:35:30,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:35:30,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2023-08-30 08:35:30,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4497991967871486 [2023-08-30 08:35:30,863 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2023-08-30 08:35:30,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2023-08-30 08:35:30,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:35:30,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2023-08-30 08:35:30,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 08:35:30,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 08:35:30,866 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 08:35:30,866 INFO L175 Difference]: Start difference. First operand has 46 places, 49 transitions, 316 flow. Second operand 3 states and 224 transitions. [2023-08-30 08:35:30,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 47 transitions, 385 flow [2023-08-30 08:35:30,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 47 transitions, 361 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-08-30 08:35:30,871 INFO L231 Difference]: Finished difference. Result has 45 places, 47 transitions, 279 flow [2023-08-30 08:35:30,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=45, PETRI_TRANSITIONS=47} [2023-08-30 08:35:30,872 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 16 predicate places. [2023-08-30 08:35:30,872 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 47 transitions, 279 flow [2023-08-30 08:35:30,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 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 08:35:30,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:30,873 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:35:30,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 08:35:31,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:31,079 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:31,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:31,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1196759042, now seen corresponding path program 1 times [2023-08-30 08:35:31,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:31,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430756126] [2023-08-30 08:35:31,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:31,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:31,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:31,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:31,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430756126] [2023-08-30 08:35:31,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430756126] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:35:31,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061754859] [2023-08-30 08:35:31,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:31,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:31,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:35:31,169 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 08:35:31,171 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 08:35:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:31,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 08:35:31,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:35:31,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:31,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 08:35:31,317 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:31,317 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 2 case distinctions, treesize of input 41 treesize of output 57 [2023-08-30 08:35:31,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:31,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061754859] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-30 08:35:31,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-30 08:35:31,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2, 2] total 6 [2023-08-30 08:35:31,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664004602] [2023-08-30 08:35:31,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:35:31,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:35:31,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:35:31,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:35:31,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:35:31,362 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 166 [2023-08-30 08:35:31,363 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 47 transitions, 279 flow. Second operand has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 0 states have call successors, (0), 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 08:35:31,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:35:31,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 166 [2023-08-30 08:35:31,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:35:31,401 INFO L130 PetriNetUnfolder]: 68/204 cut-off events. [2023-08-30 08:35:31,402 INFO L131 PetriNetUnfolder]: For 276/277 co-relation queries the response was YES. [2023-08-30 08:35:31,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 204 events. 68/204 cut-off events. For 276/277 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 654 event pairs, 49 based on Foata normal form. 3/206 useless extension candidates. Maximal degree in co-relation 700. Up to 175 conditions per place. [2023-08-30 08:35:31,403 INFO L137 encePairwiseOnDemand]: 164/166 looper letters, 39 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2023-08-30 08:35:31,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 45 transitions, 348 flow [2023-08-30 08:35:31,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:35:31,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:35:31,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2023-08-30 08:35:31,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44779116465863456 [2023-08-30 08:35:31,405 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 223 transitions. [2023-08-30 08:35:31,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 223 transitions. [2023-08-30 08:35:31,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:35:31,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 223 transitions. [2023-08-30 08:35:31,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 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 08:35:31,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 08:35:31,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 08:35:31,408 INFO L175 Difference]: Start difference. First operand has 45 places, 47 transitions, 279 flow. Second operand 3 states and 223 transitions. [2023-08-30 08:35:31,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 45 transitions, 348 flow [2023-08-30 08:35:31,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 45 transitions, 347 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:35:31,411 INFO L231 Difference]: Finished difference. Result has 45 places, 45 transitions, 269 flow [2023-08-30 08:35:31,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=45, PETRI_TRANSITIONS=45} [2023-08-30 08:35:31,412 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 16 predicate places. [2023-08-30 08:35:31,412 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 45 transitions, 269 flow [2023-08-30 08:35:31,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 0 states have call successors, (0), 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 08:35:31,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:31,413 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:35:31,421 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 08:35:31,619 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 08:35:31,619 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:31,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:31,620 INFO L85 PathProgramCache]: Analyzing trace with hash 123313933, now seen corresponding path program 1 times [2023-08-30 08:35:31,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:31,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200058851] [2023-08-30 08:35:31,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:31,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:31,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:31,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200058851] [2023-08-30 08:35:31,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200058851] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:35:31,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676887902] [2023-08-30 08:35:31,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:31,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:31,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:35:31,797 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 08:35:31,819 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 08:35:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:31,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-30 08:35:31,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:35:31,894 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 6 treesize of output 5 [2023-08-30 08:35:31,954 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 08:35:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:31,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 08:35:32,030 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 5 treesize of output 3 [2023-08-30 08:35:32,085 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:32,086 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 2 case distinctions, treesize of input 41 treesize of output 57 [2023-08-30 08:35:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:32,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676887902] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 08:35:32,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 08:35:32,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 3] total 10 [2023-08-30 08:35:32,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675680282] [2023-08-30 08:35:32,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 08:35:32,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:35:32,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:35:32,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:35:32,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:35:32,214 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 166 [2023-08-30 08:35:32,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 45 transitions, 269 flow. Second operand has 12 states, 12 states have (on average 67.0) internal successors, (804), 12 states have internal predecessors, (804), 0 states have call successors, (0), 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 08:35:32,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:35:32,216 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 166 [2023-08-30 08:35:32,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:35:32,501 INFO L130 PetriNetUnfolder]: 102/317 cut-off events. [2023-08-30 08:35:32,501 INFO L131 PetriNetUnfolder]: For 417/417 co-relation queries the response was YES. [2023-08-30 08:35:32,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 317 events. 102/317 cut-off events. For 417/417 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1192 event pairs, 0 based on Foata normal form. 12/320 useless extension candidates. Maximal degree in co-relation 1104. Up to 96 conditions per place. [2023-08-30 08:35:32,504 INFO L137 encePairwiseOnDemand]: 152/166 looper letters, 75 selfloop transitions, 61 changer transitions 0/138 dead transitions. [2023-08-30 08:35:32,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 138 transitions, 1034 flow [2023-08-30 08:35:32,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-30 08:35:32,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-30 08:35:32,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1395 transitions. [2023-08-30 08:35:32,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42018072289156627 [2023-08-30 08:35:32,510 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1395 transitions. [2023-08-30 08:35:32,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1395 transitions. [2023-08-30 08:35:32,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:35:32,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1395 transitions. [2023-08-30 08:35:32,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 69.75) internal successors, (1395), 20 states have internal predecessors, (1395), 0 states have call successors, (0), 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 08:35:32,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 166.0) internal successors, (3486), 21 states have internal predecessors, (3486), 0 states have call successors, (0), 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 08:35:32,519 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 166.0) internal successors, (3486), 21 states have internal predecessors, (3486), 0 states have call successors, (0), 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 08:35:32,519 INFO L175 Difference]: Start difference. First operand has 45 places, 45 transitions, 269 flow. Second operand 20 states and 1395 transitions. [2023-08-30 08:35:32,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 138 transitions, 1034 flow [2023-08-30 08:35:32,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 138 transitions, 1033 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:35:32,524 INFO L231 Difference]: Finished difference. Result has 72 places, 81 transitions, 781 flow [2023-08-30 08:35:32,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=781, PETRI_PLACES=72, PETRI_TRANSITIONS=81} [2023-08-30 08:35:32,525 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 43 predicate places. [2023-08-30 08:35:32,525 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 81 transitions, 781 flow [2023-08-30 08:35:32,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 67.0) internal successors, (804), 12 states have internal predecessors, (804), 0 states have call successors, (0), 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 08:35:32,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:32,526 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:35:32,535 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 08:35:32,731 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 08:35:32,732 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:32,732 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:32,732 INFO L85 PathProgramCache]: Analyzing trace with hash 63799787, now seen corresponding path program 1 times [2023-08-30 08:35:32,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:32,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233950065] [2023-08-30 08:35:32,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:32,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:33,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:33,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233950065] [2023-08-30 08:35:33,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233950065] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:35:33,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121757631] [2023-08-30 08:35:33,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:33,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:33,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:35:33,153 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 08:35:33,163 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 08:35:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:33,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 31 conjunts are in the unsatisfiable core [2023-08-30 08:35:33,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:35:33,243 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 08:35:33,289 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-30 08:35:33,290 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 08:35:33,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-30 08:35:33,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2023-08-30 08:35:33,396 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-30 08:35:33,396 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 08:35:33,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-30 08:35:33,457 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 08:35:33,469 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:33,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 08:35:34,015 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:34,016 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 2 case distinctions, treesize of input 41 treesize of output 57 [2023-08-30 08:35:34,060 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 118 treesize of output 108 [2023-08-30 08:35:34,068 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:34,069 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 1 case distinctions, treesize of input 18 treesize of output 19 [2023-08-30 08:35:34,073 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 31 treesize of output 23 [2023-08-30 08:35:34,076 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 9 treesize of output 7 [2023-08-30 08:35:34,092 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 9 treesize of output 7 [2023-08-30 08:35:34,095 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 08:35:34,109 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 9 treesize of output 7 [2023-08-30 08:35:34,112 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 08:35:34,393 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:34,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121757631] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 08:35:34,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 08:35:34,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 22 [2023-08-30 08:35:34,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162400508] [2023-08-30 08:35:34,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 08:35:34,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-30 08:35:34,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:35:34,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-30 08:35:34,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=431, Unknown=6, NotChecked=0, Total=552 [2023-08-30 08:35:34,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 166 [2023-08-30 08:35:34,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 81 transitions, 781 flow. Second operand has 24 states, 24 states have (on average 51.25) internal successors, (1230), 24 states have internal predecessors, (1230), 0 states have call successors, (0), 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 08:35:34,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:35:34,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 166 [2023-08-30 08:35:34,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:35:35,770 INFO L130 PetriNetUnfolder]: 125/398 cut-off events. [2023-08-30 08:35:35,771 INFO L131 PetriNetUnfolder]: For 1409/1409 co-relation queries the response was YES. [2023-08-30 08:35:35,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 398 events. 125/398 cut-off events. For 1409/1409 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1668 event pairs, 9 based on Foata normal form. 5/400 useless extension candidates. Maximal degree in co-relation 1805. Up to 124 conditions per place. [2023-08-30 08:35:35,774 INFO L137 encePairwiseOnDemand]: 152/166 looper letters, 84 selfloop transitions, 77 changer transitions 0/163 dead transitions. [2023-08-30 08:35:35,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 163 transitions, 1684 flow [2023-08-30 08:35:35,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-08-30 08:35:35,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-08-30 08:35:35,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1408 transitions. [2023-08-30 08:35:35,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3262279888785913 [2023-08-30 08:35:35,784 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1408 transitions. [2023-08-30 08:35:35,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1408 transitions. [2023-08-30 08:35:35,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:35:35,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1408 transitions. [2023-08-30 08:35:35,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 54.15384615384615) internal successors, (1408), 26 states have internal predecessors, (1408), 0 states have call successors, (0), 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 08:35:35,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 166.0) internal successors, (4482), 27 states have internal predecessors, (4482), 0 states have call successors, (0), 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 08:35:35,796 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 166.0) internal successors, (4482), 27 states have internal predecessors, (4482), 0 states have call successors, (0), 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 08:35:35,796 INFO L175 Difference]: Start difference. First operand has 72 places, 81 transitions, 781 flow. Second operand 26 states and 1408 transitions. [2023-08-30 08:35:35,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 163 transitions, 1684 flow [2023-08-30 08:35:35,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 163 transitions, 1573 flow, removed 43 selfloop flow, removed 6 redundant places. [2023-08-30 08:35:35,810 INFO L231 Difference]: Finished difference. Result has 99 places, 108 transitions, 1238 flow [2023-08-30 08:35:35,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1238, PETRI_PLACES=99, PETRI_TRANSITIONS=108} [2023-08-30 08:35:35,812 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 70 predicate places. [2023-08-30 08:35:35,812 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 108 transitions, 1238 flow [2023-08-30 08:35:35,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 51.25) internal successors, (1230), 24 states have internal predecessors, (1230), 0 states have call successors, (0), 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 08:35:35,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:35,814 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:35:35,823 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 08:35:36,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:36,020 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:36,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:36,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1753405997, now seen corresponding path program 1 times [2023-08-30 08:35:36,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:36,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309795179] [2023-08-30 08:35:36,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:36,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:36,060 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-30 08:35:36,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:36,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309795179] [2023-08-30 08:35:36,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309795179] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:35:36,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:35:36,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:35:36,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422587857] [2023-08-30 08:35:36,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:35:36,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:35:36,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:35:36,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:35:36,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:35:36,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 166 [2023-08-30 08:35:36,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 108 transitions, 1238 flow. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 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 08:35:36,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:35:36,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 166 [2023-08-30 08:35:36,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:35:36,160 INFO L130 PetriNetUnfolder]: 94/364 cut-off events. [2023-08-30 08:35:36,160 INFO L131 PetriNetUnfolder]: For 1763/1764 co-relation queries the response was YES. [2023-08-30 08:35:36,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1806 conditions, 364 events. 94/364 cut-off events. For 1763/1764 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1319 event pairs, 65 based on Foata normal form. 18/381 useless extension candidates. Maximal degree in co-relation 1778. Up to 282 conditions per place. [2023-08-30 08:35:36,164 INFO L137 encePairwiseOnDemand]: 164/166 looper letters, 79 selfloop transitions, 0 changer transitions 13/100 dead transitions. [2023-08-30 08:35:36,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 100 transitions, 1327 flow [2023-08-30 08:35:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:35:36,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:35:36,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2023-08-30 08:35:36,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4497991967871486 [2023-08-30 08:35:36,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2023-08-30 08:35:36,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2023-08-30 08:35:36,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:35:36,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2023-08-30 08:35:36,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 08:35:36,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 08:35:36,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 08:35:36,168 INFO L175 Difference]: Start difference. First operand has 99 places, 108 transitions, 1238 flow. Second operand 3 states and 224 transitions. [2023-08-30 08:35:36,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 100 transitions, 1327 flow [2023-08-30 08:35:36,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 100 transitions, 1250 flow, removed 26 selfloop flow, removed 7 redundant places. [2023-08-30 08:35:36,183 INFO L231 Difference]: Finished difference. Result has 94 places, 87 transitions, 907 flow [2023-08-30 08:35:36,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=1040, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=907, PETRI_PLACES=94, PETRI_TRANSITIONS=87} [2023-08-30 08:35:36,184 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 65 predicate places. [2023-08-30 08:35:36,185 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 907 flow [2023-08-30 08:35:36,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 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 08:35:36,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:36,185 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-08-30 08:35:36,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 08:35:36,186 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:36,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:36,186 INFO L85 PathProgramCache]: Analyzing trace with hash 731950084, now seen corresponding path program 1 times [2023-08-30 08:35:36,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:36,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668496952] [2023-08-30 08:35:36,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:36,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:36,254 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-30 08:35:36,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:36,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668496952] [2023-08-30 08:35:36,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668496952] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:35:36,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:35:36,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:35:36,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404256706] [2023-08-30 08:35:36,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:35:36,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:35:36,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:35:36,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:35:36,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:35:36,258 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 166 [2023-08-30 08:35:36,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 87 transitions, 907 flow. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 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 08:35:36,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:35:36,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 166 [2023-08-30 08:35:36,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:35:36,331 INFO L130 PetriNetUnfolder]: 84/317 cut-off events. [2023-08-30 08:35:36,331 INFO L131 PetriNetUnfolder]: For 1561/1562 co-relation queries the response was YES. [2023-08-30 08:35:36,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 317 events. 84/317 cut-off events. For 1561/1562 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1038 event pairs, 62 based on Foata normal form. 10/326 useless extension candidates. Maximal degree in co-relation 1431. Up to 265 conditions per place. [2023-08-30 08:35:36,334 INFO L137 encePairwiseOnDemand]: 164/166 looper letters, 72 selfloop transitions, 1 changer transitions 0/81 dead transitions. [2023-08-30 08:35:36,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 81 transitions, 982 flow [2023-08-30 08:35:36,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:35:36,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:35:36,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2023-08-30 08:35:36,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44176706827309237 [2023-08-30 08:35:36,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 220 transitions. [2023-08-30 08:35:36,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 220 transitions. [2023-08-30 08:35:36,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:35:36,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 220 transitions. [2023-08-30 08:35:36,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 08:35:36,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 08:35:36,338 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 08:35:36,338 INFO L175 Difference]: Start difference. First operand has 94 places, 87 transitions, 907 flow. Second operand 3 states and 220 transitions. [2023-08-30 08:35:36,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 81 transitions, 982 flow [2023-08-30 08:35:36,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 81 transitions, 976 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-30 08:35:36,350 INFO L231 Difference]: Finished difference. Result has 89 places, 81 transitions, 832 flow [2023-08-30 08:35:36,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=832, PETRI_PLACES=89, PETRI_TRANSITIONS=81} [2023-08-30 08:35:36,351 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 60 predicate places. [2023-08-30 08:35:36,351 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 81 transitions, 832 flow [2023-08-30 08:35:36,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 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 08:35:36,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:36,352 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-08-30 08:35:36,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 08:35:36,352 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:36,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:36,353 INFO L85 PathProgramCache]: Analyzing trace with hash -25821331, now seen corresponding path program 1 times [2023-08-30 08:35:36,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:36,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676288858] [2023-08-30 08:35:36,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:36,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:36,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:36,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676288858] [2023-08-30 08:35:36,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676288858] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:35:36,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438800837] [2023-08-30 08:35:36,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:36,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:36,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:35:36,577 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 08:35:36,602 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 08:35:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:36,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-30 08:35:36,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:35:36,710 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 6 treesize of output 5 [2023-08-30 08:35:36,734 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 6 treesize of output 5 [2023-08-30 08:35:36,774 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 08:35:36,785 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:36,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 08:35:36,833 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 7 treesize of output 5 [2023-08-30 08:35:37,013 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:37,013 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 2 case distinctions, treesize of input 41 treesize of output 57 [2023-08-30 08:35:37,076 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:37,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438800837] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 08:35:37,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 08:35:37,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 10 [2023-08-30 08:35:37,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925670964] [2023-08-30 08:35:37,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 08:35:37,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:35:37,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:35:37,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:35:37,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:35:37,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 166 [2023-08-30 08:35:37,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 81 transitions, 832 flow. Second operand has 12 states, 12 states have (on average 67.41666666666667) internal successors, (809), 12 states have internal predecessors, (809), 0 states have call successors, (0), 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 08:35:37,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:35:37,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 166 [2023-08-30 08:35:37,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:35:37,624 INFO L130 PetriNetUnfolder]: 113/408 cut-off events. [2023-08-30 08:35:37,625 INFO L131 PetriNetUnfolder]: For 2171/2171 co-relation queries the response was YES. [2023-08-30 08:35:37,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1911 conditions, 408 events. 113/408 cut-off events. For 2171/2171 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1267 event pairs, 2 based on Foata normal form. 13/421 useless extension candidates. Maximal degree in co-relation 1882. Up to 99 conditions per place. [2023-08-30 08:35:37,629 INFO L137 encePairwiseOnDemand]: 156/166 looper letters, 100 selfloop transitions, 71 changer transitions 0/173 dead transitions. [2023-08-30 08:35:37,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 173 transitions, 1809 flow [2023-08-30 08:35:37,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-30 08:35:37,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-30 08:35:37,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1542 transitions. [2023-08-30 08:35:37,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4222343921139102 [2023-08-30 08:35:37,634 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1542 transitions. [2023-08-30 08:35:37,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1542 transitions. [2023-08-30 08:35:37,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:35:37,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1542 transitions. [2023-08-30 08:35:37,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 70.0909090909091) internal successors, (1542), 22 states have internal predecessors, (1542), 0 states have call successors, (0), 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 08:35:37,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 166.0) internal successors, (3818), 23 states have internal predecessors, (3818), 0 states have call successors, (0), 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 08:35:37,644 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 166.0) internal successors, (3818), 23 states have internal predecessors, (3818), 0 states have call successors, (0), 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 08:35:37,644 INFO L175 Difference]: Start difference. First operand has 89 places, 81 transitions, 832 flow. Second operand 22 states and 1542 transitions. [2023-08-30 08:35:37,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 173 transitions, 1809 flow [2023-08-30 08:35:37,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 173 transitions, 1789 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-30 08:35:37,658 INFO L231 Difference]: Finished difference. Result has 110 places, 103 transitions, 1302 flow [2023-08-30 08:35:37,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=773, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1302, PETRI_PLACES=110, PETRI_TRANSITIONS=103} [2023-08-30 08:35:37,658 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 81 predicate places. [2023-08-30 08:35:37,658 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 103 transitions, 1302 flow [2023-08-30 08:35:37,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 67.41666666666667) internal successors, (809), 12 states have internal predecessors, (809), 0 states have call successors, (0), 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 08:35:37,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:37,659 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2023-08-30 08:35:37,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-30 08:35:37,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:37,865 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:37,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:37,865 INFO L85 PathProgramCache]: Analyzing trace with hash -800460809, now seen corresponding path program 1 times [2023-08-30 08:35:37,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:37,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400590685] [2023-08-30 08:35:37,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:37,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:38,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:38,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400590685] [2023-08-30 08:35:38,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400590685] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:35:38,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593397515] [2023-08-30 08:35:38,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:38,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:38,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:35:38,106 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 08:35:38,113 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 08:35:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:38,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 18 conjunts are in the unsatisfiable core [2023-08-30 08:35:38,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:35:38,229 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 6 treesize of output 5 [2023-08-30 08:35:38,258 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 6 treesize of output 5 [2023-08-30 08:35:38,305 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 08:35:38,320 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:38,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 08:35:38,358 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 5 treesize of output 3 [2023-08-30 08:35:38,496 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:38,498 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 2 case distinctions, treesize of input 41 treesize of output 57 [2023-08-30 08:35:38,562 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:38,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593397515] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 08:35:38,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 08:35:38,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 14 [2023-08-30 08:35:38,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483783079] [2023-08-30 08:35:38,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 08:35:38,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-08-30 08:35:38,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:35:38,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-08-30 08:35:38,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2023-08-30 08:35:38,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 166 [2023-08-30 08:35:38,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 103 transitions, 1302 flow. Second operand has 16 states, 16 states have (on average 64.6875) internal successors, (1035), 16 states have internal predecessors, (1035), 0 states have call successors, (0), 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 08:35:38,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:35:38,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 166 [2023-08-30 08:35:38,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:35:39,203 INFO L130 PetriNetUnfolder]: 109/394 cut-off events. [2023-08-30 08:35:39,203 INFO L131 PetriNetUnfolder]: For 2536/2536 co-relation queries the response was YES. [2023-08-30 08:35:39,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2038 conditions, 394 events. 109/394 cut-off events. For 2536/2536 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1177 event pairs, 0 based on Foata normal form. 13/407 useless extension candidates. Maximal degree in co-relation 2007. Up to 88 conditions per place. [2023-08-30 08:35:39,208 INFO L137 encePairwiseOnDemand]: 155/166 looper letters, 103 selfloop transitions, 75 changer transitions 0/180 dead transitions. [2023-08-30 08:35:39,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 180 transitions, 2092 flow [2023-08-30 08:35:39,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-08-30 08:35:39,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-08-30 08:35:39,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1899 transitions. [2023-08-30 08:35:39,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3944744495222268 [2023-08-30 08:35:39,214 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1899 transitions. [2023-08-30 08:35:39,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1899 transitions. [2023-08-30 08:35:39,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:35:39,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1899 transitions. [2023-08-30 08:35:39,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 65.48275862068965) internal successors, (1899), 29 states have internal predecessors, (1899), 0 states have call successors, (0), 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 08:35:39,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 166.0) internal successors, (4980), 30 states have internal predecessors, (4980), 0 states have call successors, (0), 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 08:35:39,233 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 166.0) internal successors, (4980), 30 states have internal predecessors, (4980), 0 states have call successors, (0), 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 08:35:39,233 INFO L175 Difference]: Start difference. First operand has 110 places, 103 transitions, 1302 flow. Second operand 29 states and 1899 transitions. [2023-08-30 08:35:39,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 180 transitions, 2092 flow [2023-08-30 08:35:39,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 180 transitions, 1957 flow, removed 36 selfloop flow, removed 11 redundant places. [2023-08-30 08:35:39,253 INFO L231 Difference]: Finished difference. Result has 134 places, 112 transitions, 1458 flow [2023-08-30 08:35:39,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=1458, PETRI_PLACES=134, PETRI_TRANSITIONS=112} [2023-08-30 08:35:39,254 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 105 predicate places. [2023-08-30 08:35:39,254 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 112 transitions, 1458 flow [2023-08-30 08:35:39,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 64.6875) internal successors, (1035), 16 states have internal predecessors, (1035), 0 states have call successors, (0), 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 08:35:39,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:35:39,255 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-08-30 08:35:39,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-30 08:35:39,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:39,468 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 08:35:39,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:35:39,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1414025107, now seen corresponding path program 1 times [2023-08-30 08:35:39,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:35:39,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243210681] [2023-08-30 08:35:39,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:39,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:35:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:40,037 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:40,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:35:40,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243210681] [2023-08-30 08:35:40,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243210681] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:35:40,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584646167] [2023-08-30 08:35:40,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:35:40,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:35:40,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:35:40,039 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 08:35:40,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-30 08:35:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:35:40,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-30 08:35:40,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:35:40,157 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 08:35:40,185 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-30 08:35:40,185 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 08:35:40,198 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 6 treesize of output 5 [2023-08-30 08:35:40,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2023-08-30 08:35:40,266 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-08-30 08:35:40,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 18 [2023-08-30 08:35:40,307 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 08:35:40,373 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-08-30 08:35:40,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 22 [2023-08-30 08:35:40,423 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:40,423 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 27 treesize of output 31 [2023-08-30 08:35:40,554 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-08-30 08:35:40,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 23 [2023-08-30 08:35:40,609 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2023-08-30 08:35:40,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30 [2023-08-30 08:35:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:35:40,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 08:35:42,330 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:42,331 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 2 case distinctions, treesize of input 41 treesize of output 57 [2023-08-30 08:35:42,642 INFO L321 Elim1Store]: treesize reduction 305, result has 28.4 percent of original size [2023-08-30 08:35:42,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 297 treesize of output 414 [2023-08-30 08:35:43,551 INFO L321 Elim1Store]: treesize reduction 925, result has 18.1 percent of original size [2023-08-30 08:35:43,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 48 case distinctions, treesize of input 3667 treesize of output 3872 [2023-08-30 08:35:43,763 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 597 treesize of output 581 [2023-08-30 08:35:43,831 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 581 treesize of output 579 [2023-08-30 08:35:43,891 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 579 treesize of output 577 [2023-08-30 08:35:43,948 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 577 treesize of output 575 [2023-08-30 08:35:44,007 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 575 treesize of output 573 [2023-08-30 08:35:44,073 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 573 treesize of output 571 [2023-08-30 08:35:44,143 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 571 treesize of output 563 [2023-08-30 08:35:44,210 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 563 treesize of output 561 [2023-08-30 08:35:44,276 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 561 treesize of output 559 [2023-08-30 08:35:47,004 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:47,005 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 1 case distinctions, treesize of input 45 treesize of output 35 [2023-08-30 08:35:47,229 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:47,230 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 1 case distinctions, treesize of input 84 treesize of output 65 [2023-08-30 08:35:48,563 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:48,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 131 treesize of output 116 [2023-08-30 08:35:48,663 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:48,664 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 1 case distinctions, treesize of input 84 treesize of output 65 [2023-08-30 08:35:48,707 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:48,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 92 treesize of output 71 [2023-08-30 08:35:48,726 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:48,726 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 1 case distinctions, treesize of input 84 treesize of output 65 [2023-08-30 08:35:48,762 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:48,762 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 1 case distinctions, treesize of input 84 treesize of output 65 [2023-08-30 08:35:48,790 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:48,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 138 treesize of output 117 [2023-08-30 08:35:48,863 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:48,863 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 1 case distinctions, treesize of input 84 treesize of output 65 [2023-08-30 08:35:48,901 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:48,902 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 1 case distinctions, treesize of input 51 treesize of output 41 [2023-08-30 08:35:49,507 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:49,507 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 1 case distinctions, treesize of input 51 treesize of output 41 [2023-08-30 08:35:49,520 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:49,521 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 1 case distinctions, treesize of input 51 treesize of output 41 [2023-08-30 08:35:49,685 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:49,685 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 1 case distinctions, treesize of input 84 treesize of output 65 [2023-08-30 08:35:50,488 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:50,489 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 1 case distinctions, treesize of input 84 treesize of output 65 [2023-08-30 08:35:50,534 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:50,534 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 1 case distinctions, treesize of input 84 treesize of output 65 [2023-08-30 08:35:50,558 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:50,558 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 1 case distinctions, treesize of input 84 treesize of output 65 [2023-08-30 08:35:50,603 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:50,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 92 treesize of output 71 [2023-08-30 08:35:50,626 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:35:50,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 138 treesize of output 117 [2023-08-30 08:47:03,191 WARN L222 SmtUtils]: Spent 11.15m on a formula simplification that was a NOOP. DAG size: 13449 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-30 08:47:03,201 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:47:03,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 82 select indices, 82 select index equivalence classes, 0 disjoint index pairs (out of 3321 index pairs), introduced 82 new quantified variables, introduced 3321 case distinctions, treesize of input 363464 treesize of output 373996 Killed by 15