./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc --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 11:04:38,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 11:04:38,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 11:04:38,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 11:04:38,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 11:04:38,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 11:04:38,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 11:04:38,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 11:04:38,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 11:04:38,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 11:04:38,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 11:04:38,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 11:04:38,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 11:04:38,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 11:04:38,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 11:04:38,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 11:04:38,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 11:04:38,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 11:04:38,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 11:04:38,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 11:04:38,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 11:04:38,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 11:04:38,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 11:04:38,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 11:04:38,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 11:04:38,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 11:04:38,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 11:04:38,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 11:04:38,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 11:04:38,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 11:04:38,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 11:04:38,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 11:04:38,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 11:04:38,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 11:04:38,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 11:04:38,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 11:04:38,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 11:04:38,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 11:04:38,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 11:04:38,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 11:04:38,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 11:04:38,969 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 11:04:38,990 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 11:04:38,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 11:04:38,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 11:04:38,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 11:04:38,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 11:04:38,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 11:04:38,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 11:04:38,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 11:04:38,993 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 11:04:38,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 11:04:38,994 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 11:04:38,994 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 11:04:38,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 11:04:38,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 11:04:38,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 11:04:38,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 11:04:38,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 11:04:38,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 11:04:38,996 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 11:04:38,996 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 11:04:38,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 11:04:38,996 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 11:04:38,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 11:04:38,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 11:04:38,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 11:04:38,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 11:04:38,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 11:04:38,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 11:04:38,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 11:04:38,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 11:04:38,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 11:04:38,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 11:04:38,998 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 11:04:38,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 11:04:38,999 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 11:04:38,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 11:04:38,999 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 11:04:38,999 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 11:04:39,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 11:04:39,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 11:04:39,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 11:04:39,329 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 11:04:39,329 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 11:04:39,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c [2023-08-30 11:04:40,523 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 11:04:40,755 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 11:04:40,755 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c [2023-08-30 11:04:40,762 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4172ae094/2500bf020124431497787d1a0c1ac168/FLAG88160059e [2023-08-30 11:04:40,773 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4172ae094/2500bf020124431497787d1a0c1ac168 [2023-08-30 11:04:40,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 11:04:40,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 11:04:40,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 11:04:40,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 11:04:40,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 11:04:40,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:04:40" (1/1) ... [2023-08-30 11:04:40,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd5d50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:40, skipping insertion in model container [2023-08-30 11:04:40,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:04:40" (1/1) ... [2023-08-30 11:04:40,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 11:04:40,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 11:04:41,030 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2023-08-30 11:04:41,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 11:04:41,046 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 11:04:41,131 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2023-08-30 11:04:41,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 11:04:41,152 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 11:04:41,164 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 11:04:41,170 INFO L208 MainTranslator]: Completed translation [2023-08-30 11:04:41,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41 WrapperNode [2023-08-30 11:04:41,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 11:04:41,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 11:04:41,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 11:04:41,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 11:04:41,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41" (1/1) ... [2023-08-30 11:04:41,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41" (1/1) ... [2023-08-30 11:04:41,290 INFO L138 Inliner]: procedures = 25, calls = 307, calls flagged for inlining = 69, calls inlined = 97, statements flattened = 1680 [2023-08-30 11:04:41,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 11:04:41,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 11:04:41,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 11:04:41,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 11:04:41,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41" (1/1) ... [2023-08-30 11:04:41,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41" (1/1) ... [2023-08-30 11:04:41,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41" (1/1) ... [2023-08-30 11:04:41,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41" (1/1) ... [2023-08-30 11:04:41,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41" (1/1) ... [2023-08-30 11:04:41,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41" (1/1) ... [2023-08-30 11:04:41,391 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41" (1/1) ... [2023-08-30 11:04:41,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41" (1/1) ... [2023-08-30 11:04:41,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 11:04:41,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 11:04:41,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 11:04:41,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 11:04:41,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41" (1/1) ... [2023-08-30 11:04:41,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 11:04:41,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:04:41,431 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 11:04:41,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 11:04:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 11:04:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 11:04:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 11:04:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 11:04:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 11:04:41,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 11:04:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 11:04:41,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 11:04:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 11:04:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 11:04:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 11:04:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 11:04:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 11:04:41,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 11:04:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 11:04:41,471 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 11:04:41,732 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 11:04:41,733 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 11:04:43,014 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 11:04:45,463 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 11:04:45,464 INFO L302 CfgBuilder]: Removed 12 assume(true) statements. [2023-08-30 11:04:45,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:04:45 BoogieIcfgContainer [2023-08-30 11:04:45,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 11:04:45,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 11:04:45,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 11:04:45,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 11:04:45,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 11:04:40" (1/3) ... [2023-08-30 11:04:45,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c333e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:04:45, skipping insertion in model container [2023-08-30 11:04:45,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:04:41" (2/3) ... [2023-08-30 11:04:45,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c333e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:04:45, skipping insertion in model container [2023-08-30 11:04:45,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:04:45" (3/3) ... [2023-08-30 11:04:45,475 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2023-08-30 11:04:45,483 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 11:04:45,491 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 11:04:45,491 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2023-08-30 11:04:45,491 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 11:04:46,194 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 11:04:46,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 495 places, 541 transitions, 1098 flow [2023-08-30 11:04:46,552 INFO L130 PetriNetUnfolder]: 53/539 cut-off events. [2023-08-30 11:04:46,553 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 11:04:46,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 539 events. 53/539 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1074 event pairs, 0 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 433. Up to 7 conditions per place. [2023-08-30 11:04:46,562 INFO L82 GeneralOperation]: Start removeDead. Operand has 495 places, 541 transitions, 1098 flow [2023-08-30 11:04:46,572 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 479 places, 524 transitions, 1060 flow [2023-08-30 11:04:46,575 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 11:04:46,585 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 479 places, 524 transitions, 1060 flow [2023-08-30 11:04:46,589 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 479 places, 524 transitions, 1060 flow [2023-08-30 11:04:46,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 479 places, 524 transitions, 1060 flow [2023-08-30 11:04:46,736 INFO L130 PetriNetUnfolder]: 52/524 cut-off events. [2023-08-30 11:04:46,737 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 11:04:46,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 524 events. 52/524 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1073 event pairs, 0 based on Foata normal form. 0/403 useless extension candidates. Maximal degree in co-relation 433. Up to 7 conditions per place. [2023-08-30 11:04:46,749 INFO L119 LiptonReduction]: Number of co-enabled transitions 15552 [2023-08-30 11:06:41,639 INFO L134 LiptonReduction]: Checked pairs total: 18944 [2023-08-30 11:06:41,639 INFO L136 LiptonReduction]: Total number of compositions: 676 [2023-08-30 11:06:41,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 11:06:41,654 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;@33f2af64, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 11:06:41,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2023-08-30 11:06:41,657 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-08-30 11:06:41,657 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 11:06:41,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:06:41,658 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 11:06:41,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-08-30 11:06:41,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:06:41,663 INFO L85 PathProgramCache]: Analyzing trace with hash 197359, now seen corresponding path program 1 times [2023-08-30 11:06:41,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:06:41,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140002839] [2023-08-30 11:06:41,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:06:41,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:06:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:06:41,946 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 11:06:41,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:06:41,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140002839] [2023-08-30 11:06:41,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140002839] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:06:41,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:06:41,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 11:06:41,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982592844] [2023-08-30 11:06:41,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:06:41,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:06:41,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:06:41,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:06:41,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:06:42,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 1217 [2023-08-30 11:06:42,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 108 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 407.6666666666667) internal successors, (1223), 3 states have internal predecessors, (1223), 0 states have call successors, (0), 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 11:06:42,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:06:42,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 1217 [2023-08-30 11:06:42,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:06:45,754 INFO L130 PetriNetUnfolder]: 3359/5327 cut-off events. [2023-08-30 11:06:45,755 INFO L131 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2023-08-30 11:06:45,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10790 conditions, 5327 events. 3359/5327 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 34592 event pairs, 2640 based on Foata normal form. 2/1601 useless extension candidates. Maximal degree in co-relation 5136. Up to 2673 conditions per place. [2023-08-30 11:06:45,781 INFO L137 encePairwiseOnDemand]: 1165/1217 looper letters, 141 selfloop transitions, 16 changer transitions 2/159 dead transitions. [2023-08-30 11:06:45,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 159 transitions, 660 flow [2023-08-30 11:06:45,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:06:45,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:06:45,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2023-08-30 11:06:45,798 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39331689947959464 [2023-08-30 11:06:45,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2023-08-30 11:06:45,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2023-08-30 11:06:45,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:06:45,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2023-08-30 11:06:45,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 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 11:06:45,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1217.0) internal successors, (4868), 4 states have internal predecessors, (4868), 0 states have call successors, (0), 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 11:06:45,822 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1217.0) internal successors, (4868), 4 states have internal predecessors, (4868), 0 states have call successors, (0), 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 11:06:45,823 INFO L175 Difference]: Start difference. First operand has 99 places, 108 transitions, 228 flow. Second operand 3 states and 1436 transitions. [2023-08-30 11:06:45,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 159 transitions, 660 flow [2023-08-30 11:06:45,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 159 transitions, 644 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 11:06:45,832 INFO L231 Difference]: Finished difference. Result has 79 places, 102 transitions, 333 flow [2023-08-30 11:06:45,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=79, PETRI_TRANSITIONS=102} [2023-08-30 11:06:45,837 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -20 predicate places. [2023-08-30 11:06:45,837 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 102 transitions, 333 flow [2023-08-30 11:06:45,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 407.6666666666667) internal successors, (1223), 3 states have internal predecessors, (1223), 0 states have call successors, (0), 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 11:06:45,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:06:45,838 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 11:06:45,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 11:06:45,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-08-30 11:06:45,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:06:45,839 INFO L85 PathProgramCache]: Analyzing trace with hash 6126729, now seen corresponding path program 1 times [2023-08-30 11:06:45,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:06:45,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022416330] [2023-08-30 11:06:45,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:06:45,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:06:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:06:45,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:06:45,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:06:45,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022416330] [2023-08-30 11:06:45,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022416330] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:06:45,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:06:45,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 11:06:45,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018513712] [2023-08-30 11:06:45,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:06:45,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:06:45,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:06:45,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:06:45,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:06:46,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 1217 [2023-08-30 11:06:46,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 102 transitions, 333 flow. Second operand has 3 states, 3 states have (on average 408.0) internal successors, (1224), 3 states have internal predecessors, (1224), 0 states have call successors, (0), 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 11:06:46,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:06:46,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 1217 [2023-08-30 11:06:46,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:06:49,368 INFO L130 PetriNetUnfolder]: 3359/5317 cut-off events. [2023-08-30 11:06:49,368 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2023-08-30 11:06:49,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10737 conditions, 5317 events. 3359/5317 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 34478 event pairs, 2640 based on Foata normal form. 0/1613 useless extension candidates. Maximal degree in co-relation 5321. Up to 5317 conditions per place. [2023-08-30 11:06:49,386 INFO L137 encePairwiseOnDemand]: 1208/1217 looper letters, 93 selfloop transitions, 1 changer transitions 0/94 dead transitions. [2023-08-30 11:06:49,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 94 transitions, 489 flow [2023-08-30 11:06:49,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:06:49,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:06:49,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1308 transitions. [2023-08-30 11:06:49,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3582580115036976 [2023-08-30 11:06:49,391 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1308 transitions. [2023-08-30 11:06:49,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1308 transitions. [2023-08-30 11:06:49,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:06:49,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1308 transitions. [2023-08-30 11:06:49,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 436.0) internal successors, (1308), 3 states have internal predecessors, (1308), 0 states have call successors, (0), 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 11:06:49,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1217.0) internal successors, (4868), 4 states have internal predecessors, (4868), 0 states have call successors, (0), 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 11:06:49,402 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1217.0) internal successors, (4868), 4 states have internal predecessors, (4868), 0 states have call successors, (0), 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 11:06:49,403 INFO L175 Difference]: Start difference. First operand has 79 places, 102 transitions, 333 flow. Second operand 3 states and 1308 transitions. [2023-08-30 11:06:49,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 94 transitions, 489 flow [2023-08-30 11:06:49,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 94 transitions, 457 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 11:06:49,406 INFO L231 Difference]: Finished difference. Result has 70 places, 94 transitions, 271 flow [2023-08-30 11:06:49,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=70, PETRI_TRANSITIONS=94} [2023-08-30 11:06:49,407 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -29 predicate places. [2023-08-30 11:06:49,407 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 94 transitions, 271 flow [2023-08-30 11:06:49,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 408.0) internal successors, (1224), 3 states have internal predecessors, (1224), 0 states have call successors, (0), 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 11:06:49,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:06:49,408 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 11:06:49,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 11:06:49,408 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-08-30 11:06:49,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:06:49,409 INFO L85 PathProgramCache]: Analyzing trace with hash 6126816, now seen corresponding path program 1 times [2023-08-30 11:06:49,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:06:49,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126967544] [2023-08-30 11:06:49,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:06:49,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:06:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:06:49,478 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 11:06:49,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:06:49,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126967544] [2023-08-30 11:06:49,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126967544] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:06:49,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291422395] [2023-08-30 11:06:49,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:06:49,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:06:49,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:06:49,483 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 11:06:49,500 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 11:06:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:06:50,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 11:06:50,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:06:50,377 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 11:06:50,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 11:06:50,390 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 11:06:50,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291422395] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 11:06:50,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 11:06:50,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-30 11:06:50,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437321580] [2023-08-30 11:06:50,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 11:06:50,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 11:06:50,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:06:50,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 11:06:50,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 11:06:50,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 1217 [2023-08-30 11:06:50,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 94 transitions, 271 flow. Second operand has 7 states, 7 states have (on average 408.14285714285717) internal successors, (2857), 7 states have internal predecessors, (2857), 0 states have call successors, (0), 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 11:06:50,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:06:50,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 1217 [2023-08-30 11:06:50,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:06:58,222 INFO L130 PetriNetUnfolder]: 8396/13279 cut-off events. [2023-08-30 11:06:58,223 INFO L131 PetriNetUnfolder]: For 100/100 co-relation queries the response was YES. [2023-08-30 11:06:58,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26757 conditions, 13279 events. 8396/13279 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 1242. Compared 94467 event pairs, 6600 based on Foata normal form. 0/3996 useless extension candidates. Maximal degree in co-relation 26749. Up to 2675 conditions per place. [2023-08-30 11:06:58,275 INFO L137 encePairwiseOnDemand]: 1193/1217 looper letters, 298 selfloop transitions, 61 changer transitions 0/359 dead transitions. [2023-08-30 11:06:58,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 359 transitions, 1621 flow [2023-08-30 11:06:58,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 11:06:58,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 11:06:58,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2825 transitions. [2023-08-30 11:06:58,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3868803067652698 [2023-08-30 11:06:58,284 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2825 transitions. [2023-08-30 11:06:58,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2825 transitions. [2023-08-30 11:06:58,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:06:58,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2825 transitions. [2023-08-30 11:06:58,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 470.8333333333333) internal successors, (2825), 6 states have internal predecessors, (2825), 0 states have call successors, (0), 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 11:06:58,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1217.0) internal successors, (8519), 7 states have internal predecessors, (8519), 0 states have call successors, (0), 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 11:06:58,306 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1217.0) internal successors, (8519), 7 states have internal predecessors, (8519), 0 states have call successors, (0), 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 11:06:58,306 INFO L175 Difference]: Start difference. First operand has 70 places, 94 transitions, 271 flow. Second operand 6 states and 2825 transitions. [2023-08-30 11:06:58,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 359 transitions, 1621 flow [2023-08-30 11:06:58,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 359 transitions, 1620 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:06:58,314 INFO L231 Difference]: Finished difference. Result has 77 places, 139 transitions, 705 flow [2023-08-30 11:06:58,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=705, PETRI_PLACES=77, PETRI_TRANSITIONS=139} [2023-08-30 11:06:58,316 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -22 predicate places. [2023-08-30 11:06:58,316 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 139 transitions, 705 flow [2023-08-30 11:06:58,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 408.14285714285717) internal successors, (2857), 7 states have internal predecessors, (2857), 0 states have call successors, (0), 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 11:06:58,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:06:58,318 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-30 11:06:58,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 11:06:58,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:06:58,529 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-08-30 11:06:58,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:06:58,530 INFO L85 PathProgramCache]: Analyzing trace with hash 2141297094, now seen corresponding path program 2 times [2023-08-30 11:06:58,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:06:58,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151127532] [2023-08-30 11:06:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:06:58,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:06:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:06:58,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:06:58,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:06:58,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151127532] [2023-08-30 11:06:58,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151127532] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:06:58,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426779395] [2023-08-30 11:06:58,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 11:06:58,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:06:58,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:06:58,689 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 11:06:58,692 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 11:06:59,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 11:06:59,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 11:06:59,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 11:06:59,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:06:59,459 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 11:06:59,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 11:06:59,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426779395] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:06:59,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 11:06:59,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-30 11:06:59,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713987979] [2023-08-30 11:06:59,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:06:59,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:06:59,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:06:59,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:06:59,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-30 11:06:59,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 1217 [2023-08-30 11:06:59,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 139 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 416.0) internal successors, (1248), 3 states have internal predecessors, (1248), 0 states have call successors, (0), 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 11:06:59,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:06:59,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 1217 [2023-08-30 11:06:59,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:07:06,098 INFO L130 PetriNetUnfolder]: 8396/13273 cut-off events. [2023-08-30 11:07:06,098 INFO L131 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2023-08-30 11:07:06,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26862 conditions, 13273 events. 8396/13273 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 1242. Compared 94236 event pairs, 6600 based on Foata normal form. 6/4025 useless extension candidates. Maximal degree in co-relation 26850. Up to 13218 conditions per place. [2023-08-30 11:07:06,140 INFO L137 encePairwiseOnDemand]: 1209/1217 looper letters, 127 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2023-08-30 11:07:06,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 133 transitions, 911 flow [2023-08-30 11:07:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:07:06,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:07:06,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2023-08-30 11:07:06,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36264037250068476 [2023-08-30 11:07:06,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2023-08-30 11:07:06,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2023-08-30 11:07:06,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:07:06,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2023-08-30 11:07:06,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 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 11:07:06,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1217.0) internal successors, (4868), 4 states have internal predecessors, (4868), 0 states have call successors, (0), 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 11:07:06,157 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1217.0) internal successors, (4868), 4 states have internal predecessors, (4868), 0 states have call successors, (0), 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 11:07:06,157 INFO L175 Difference]: Start difference. First operand has 77 places, 139 transitions, 705 flow. Second operand 3 states and 1324 transitions. [2023-08-30 11:07:06,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 133 transitions, 911 flow [2023-08-30 11:07:06,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 133 transitions, 826 flow, removed 24 selfloop flow, removed 1 redundant places. [2023-08-30 11:07:06,165 INFO L231 Difference]: Finished difference. Result has 72 places, 133 transitions, 572 flow [2023-08-30 11:07:06,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=572, PETRI_PLACES=72, PETRI_TRANSITIONS=133} [2023-08-30 11:07:06,166 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -27 predicate places. [2023-08-30 11:07:06,166 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 133 transitions, 572 flow [2023-08-30 11:07:06,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.0) internal successors, (1248), 3 states have internal predecessors, (1248), 0 states have call successors, (0), 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 11:07:06,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:07:06,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:07:06,180 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 11:07:06,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-30 11:07:06,378 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-08-30 11:07:06,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:07:06,378 INFO L85 PathProgramCache]: Analyzing trace with hash 491391055, now seen corresponding path program 1 times [2023-08-30 11:07:06,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:07:06,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749224030] [2023-08-30 11:07:06,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:07:06,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:07:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:07:06,514 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 11:07:06,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:07:06,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749224030] [2023-08-30 11:07:06,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749224030] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:07:06,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:07:06,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 11:07:06,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45784344] [2023-08-30 11:07:06,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:07:06,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:07:06,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:07:06,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:07:06,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:07:06,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 1217 [2023-08-30 11:07:06,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 133 transitions, 572 flow. Second operand has 3 states, 3 states have (on average 402.6666666666667) internal successors, (1208), 3 states have internal predecessors, (1208), 0 states have call successors, (0), 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 11:07:06,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:07:06,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 1217 [2023-08-30 11:07:06,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:07:11,983 INFO L130 PetriNetUnfolder]: 6721/10631 cut-off events. [2023-08-30 11:07:11,984 INFO L131 PetriNetUnfolder]: For 89/89 co-relation queries the response was YES. [2023-08-30 11:07:11,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21507 conditions, 10631 events. 6721/10631 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 1146. Compared 73817 event pairs, 5280 based on Foata normal form. 4/3237 useless extension candidates. Maximal degree in co-relation 21494. Up to 10618 conditions per place. [2023-08-30 11:07:12,012 INFO L137 encePairwiseOnDemand]: 1207/1217 looper letters, 112 selfloop transitions, 18 changer transitions 0/130 dead transitions. [2023-08-30 11:07:12,013 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 130 transitions, 820 flow [2023-08-30 11:07:12,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:07:12,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:07:12,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1278 transitions. [2023-08-30 11:07:12,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35004108463434674 [2023-08-30 11:07:12,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1278 transitions. [2023-08-30 11:07:12,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1278 transitions. [2023-08-30 11:07:12,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:07:12,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1278 transitions. [2023-08-30 11:07:12,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.0) internal successors, (1278), 3 states have internal predecessors, (1278), 0 states have call successors, (0), 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 11:07:12,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1217.0) internal successors, (4868), 4 states have internal predecessors, (4868), 0 states have call successors, (0), 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 11:07:12,026 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1217.0) internal successors, (4868), 4 states have internal predecessors, (4868), 0 states have call successors, (0), 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 11:07:12,026 INFO L175 Difference]: Start difference. First operand has 72 places, 133 transitions, 572 flow. Second operand 3 states and 1278 transitions. [2023-08-30 11:07:12,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 130 transitions, 820 flow [2023-08-30 11:07:12,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 130 transitions, 808 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 11:07:12,030 INFO L231 Difference]: Finished difference. Result has 73 places, 130 transitions, 604 flow [2023-08-30 11:07:12,030 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=73, PETRI_TRANSITIONS=130} [2023-08-30 11:07:12,030 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -26 predicate places. [2023-08-30 11:07:12,031 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 130 transitions, 604 flow [2023-08-30 11:07:12,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 402.6666666666667) internal successors, (1208), 3 states have internal predecessors, (1208), 0 states have call successors, (0), 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 11:07:12,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:07:12,031 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:07:12,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 11:07:12,032 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-08-30 11:07:12,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:07:12,032 INFO L85 PathProgramCache]: Analyzing trace with hash 911099676, now seen corresponding path program 1 times [2023-08-30 11:07:12,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:07:12,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342066567] [2023-08-30 11:07:12,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:07:12,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:07:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:07:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-30 11:07:12,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:07:12,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342066567] [2023-08-30 11:07:12,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342066567] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:07:12,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:07:12,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 11:07:12,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099394953] [2023-08-30 11:07:12,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:07:12,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:07:12,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:07:12,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:07:12,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:07:12,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 1217 [2023-08-30 11:07:12,271 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 130 transitions, 604 flow. Second operand has 3 states, 3 states have (on average 402.6666666666667) internal successors, (1208), 3 states have internal predecessors, (1208), 0 states have call successors, (0), 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 11:07:12,271 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:07:12,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 1217 [2023-08-30 11:07:12,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:07:17,457 INFO L130 PetriNetUnfolder]: 6717/10627 cut-off events. [2023-08-30 11:07:17,457 INFO L131 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2023-08-30 11:07:17,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21515 conditions, 10627 events. 6717/10627 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 1193. Compared 74271 event pairs, 5280 based on Foata normal form. 4/3235 useless extension candidates. Maximal degree in co-relation 21501. Up to 10612 conditions per place. [2023-08-30 11:07:17,487 INFO L137 encePairwiseOnDemand]: 1208/1217 looper letters, 106 selfloop transitions, 20 changer transitions 0/126 dead transitions. [2023-08-30 11:07:17,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 126 transitions, 837 flow [2023-08-30 11:07:17,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:07:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:07:17,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1278 transitions. [2023-08-30 11:07:17,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35004108463434674 [2023-08-30 11:07:17,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1278 transitions. [2023-08-30 11:07:17,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1278 transitions. [2023-08-30 11:07:17,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:07:17,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1278 transitions. [2023-08-30 11:07:17,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.0) internal successors, (1278), 3 states have internal predecessors, (1278), 0 states have call successors, (0), 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 11:07:17,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1217.0) internal successors, (4868), 4 states have internal predecessors, (4868), 0 states have call successors, (0), 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 11:07:17,500 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1217.0) internal successors, (4868), 4 states have internal predecessors, (4868), 0 states have call successors, (0), 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 11:07:17,500 INFO L175 Difference]: Start difference. First operand has 73 places, 130 transitions, 604 flow. Second operand 3 states and 1278 transitions. [2023-08-30 11:07:17,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 126 transitions, 837 flow [2023-08-30 11:07:17,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 126 transitions, 820 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:07:17,503 INFO L231 Difference]: Finished difference. Result has 74 places, 126 transitions, 608 flow [2023-08-30 11:07:17,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=608, PETRI_PLACES=74, PETRI_TRANSITIONS=126} [2023-08-30 11:07:17,504 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -25 predicate places. [2023-08-30 11:07:17,504 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 126 transitions, 608 flow [2023-08-30 11:07:17,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 402.6666666666667) internal successors, (1208), 3 states have internal predecessors, (1208), 0 states have call successors, (0), 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 11:07:17,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:07:17,505 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:07:17,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 11:07:17,506 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-08-30 11:07:17,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:07:17,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1501193704, now seen corresponding path program 1 times [2023-08-30 11:07:17,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:07:17,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289526102] [2023-08-30 11:07:17,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:07:17,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:07:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:07:17,624 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-08-30 11:07:17,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:07:17,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289526102] [2023-08-30 11:07:17,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289526102] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:07:17,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195793524] [2023-08-30 11:07:17,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:07:17,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:07:17,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:07:17,627 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 11:07:17,630 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 11:07:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:07:18,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 11:07:18,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:07:18,442 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-08-30 11:07:18,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 11:07:18,458 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-08-30 11:07:18,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195793524] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 11:07:18,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 11:07:18,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-30 11:07:18,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536468873] [2023-08-30 11:07:18,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 11:07:18,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 11:07:18,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:07:18,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 11:07:18,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-30 11:07:18,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 1217 [2023-08-30 11:07:18,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 126 transitions, 608 flow. Second operand has 8 states, 8 states have (on average 386.125) internal successors, (3089), 8 states have internal predecessors, (3089), 0 states have call successors, (0), 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 11:07:18,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:07:18,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 1217 [2023-08-30 11:07:18,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:07:20,349 INFO L130 PetriNetUnfolder]: 1680/2689 cut-off events. [2023-08-30 11:07:20,349 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2023-08-30 11:07:20,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5523 conditions, 2689 events. 1680/2689 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 15367 event pairs, 1320 based on Foata normal form. 24/865 useless extension candidates. Maximal degree in co-relation 5509. Up to 2656 conditions per place. [2023-08-30 11:07:20,358 INFO L137 encePairwiseOnDemand]: 1198/1217 looper letters, 63 selfloop transitions, 42 changer transitions 0/105 dead transitions. [2023-08-30 11:07:20,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 105 transitions, 650 flow [2023-08-30 11:07:20,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 11:07:20,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 11:07:20,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3193 transitions. [2023-08-30 11:07:20,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3279580936729663 [2023-08-30 11:07:20,366 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 3193 transitions. [2023-08-30 11:07:20,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 3193 transitions. [2023-08-30 11:07:20,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:07:20,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 3193 transitions. [2023-08-30 11:07:20,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 399.125) internal successors, (3193), 8 states have internal predecessors, (3193), 0 states have call successors, (0), 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 11:07:20,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1217.0) internal successors, (10953), 9 states have internal predecessors, (10953), 0 states have call successors, (0), 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 11:07:20,384 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1217.0) internal successors, (10953), 9 states have internal predecessors, (10953), 0 states have call successors, (0), 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 11:07:20,384 INFO L175 Difference]: Start difference. First operand has 74 places, 126 transitions, 608 flow. Second operand 8 states and 3193 transitions. [2023-08-30 11:07:20,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 105 transitions, 650 flow [2023-08-30 11:07:20,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 105 transitions, 626 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 11:07:20,388 INFO L231 Difference]: Finished difference. Result has 82 places, 105 transitions, 548 flow [2023-08-30 11:07:20,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=548, PETRI_PLACES=82, PETRI_TRANSITIONS=105} [2023-08-30 11:07:20,390 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -17 predicate places. [2023-08-30 11:07:20,390 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 105 transitions, 548 flow [2023-08-30 11:07:20,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 386.125) internal successors, (3089), 8 states have internal predecessors, (3089), 0 states have call successors, (0), 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 11:07:20,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:07:20,391 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:07:20,403 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 11:07:20,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:07:20,601 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-08-30 11:07:20,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:07:20,601 INFO L85 PathProgramCache]: Analyzing trace with hash -295393420, now seen corresponding path program 2 times [2023-08-30 11:07:20,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:07:20,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96406147] [2023-08-30 11:07:20,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:07:20,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:07:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:07:20,812 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-08-30 11:07:20,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:07:20,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96406147] [2023-08-30 11:07:20,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96406147] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:07:20,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858632063] [2023-08-30 11:07:20,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 11:07:20,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:07:20,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:07:20,821 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 11:07:20,846 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 11:07:21,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 11:07:21,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 11:07:21,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 11:07:21,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:07:21,672 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-08-30 11:07:21,672 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 11:07:21,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858632063] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:07:21,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 11:07:21,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-08-30 11:07:21,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729274539] [2023-08-30 11:07:21,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:07:21,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:07:21,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:07:21,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:07:21,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-30 11:07:21,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 1217 [2023-08-30 11:07:21,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 105 transitions, 548 flow. Second operand has 3 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 0 states have call successors, (0), 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 11:07:21,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:07:21,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 1217 [2023-08-30 11:07:21,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:07:23,394 INFO L130 PetriNetUnfolder]: 1680/2687 cut-off events. [2023-08-30 11:07:23,394 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2023-08-30 11:07:23,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5565 conditions, 2687 events. 1680/2687 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 15362 event pairs, 1320 based on Foata normal form. 2/841 useless extension candidates. Maximal degree in co-relation 5548. Up to 2687 conditions per place. [2023-08-30 11:07:23,405 INFO L137 encePairwiseOnDemand]: 1214/1217 looper letters, 102 selfloop transitions, 1 changer transitions 0/103 dead transitions. [2023-08-30 11:07:23,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 103 transitions, 728 flow [2023-08-30 11:07:23,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:07:23,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:07:23,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1318 transitions. [2023-08-30 11:07:23,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36099698712681455 [2023-08-30 11:07:23,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1318 transitions. [2023-08-30 11:07:23,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1318 transitions. [2023-08-30 11:07:23,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:07:23,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1318 transitions. [2023-08-30 11:07:23,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 439.3333333333333) internal successors, (1318), 3 states have internal predecessors, (1318), 0 states have call successors, (0), 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 11:07:23,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1217.0) internal successors, (4868), 4 states have internal predecessors, (4868), 0 states have call successors, (0), 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 11:07:23,416 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1217.0) internal successors, (4868), 4 states have internal predecessors, (4868), 0 states have call successors, (0), 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 11:07:23,417 INFO L175 Difference]: Start difference. First operand has 82 places, 105 transitions, 548 flow. Second operand 3 states and 1318 transitions. [2023-08-30 11:07:23,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 103 transitions, 728 flow [2023-08-30 11:07:23,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 103 transitions, 568 flow, removed 8 selfloop flow, removed 10 redundant places. [2023-08-30 11:07:23,419 INFO L231 Difference]: Finished difference. Result has 72 places, 103 transitions, 364 flow [2023-08-30 11:07:23,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=72, PETRI_TRANSITIONS=103} [2023-08-30 11:07:23,422 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -27 predicate places. [2023-08-30 11:07:23,422 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 103 transitions, 364 flow [2023-08-30 11:07:23,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 0 states have call successors, (0), 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 11:07:23,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:07:23,423 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:07:23,435 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 11:07:23,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:07:23,632 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err25ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-08-30 11:07:23,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:07:23,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1980362, now seen corresponding path program 1 times [2023-08-30 11:07:23,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:07:23,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561139778] [2023-08-30 11:07:23,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:07:23,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:07:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:07:24,019 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-08-30 11:07:24,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:07:24,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561139778] [2023-08-30 11:07:24,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561139778] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:07:24,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246278978] [2023-08-30 11:07:24,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:07:24,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:07:24,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:07:24,021 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 11:07:24,050 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 11:07:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:07:24,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-30 11:07:24,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:07:24,941 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-08-30 11:07:24,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 11:07:24,999 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-08-30 11:07:24,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246278978] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 11:07:24,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 11:07:24,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2023-08-30 11:07:25,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146579939] [2023-08-30 11:07:25,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 11:07:25,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 11:07:25,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:07:25,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 11:07:25,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=156, Unknown=0, NotChecked=0, Total=272 [2023-08-30 11:07:25,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 1217 [2023-08-30 11:07:25,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 103 transitions, 364 flow. Second operand has 17 states, 17 states have (on average 385.70588235294116) internal successors, (6557), 17 states have internal predecessors, (6557), 0 states have call successors, (0), 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 11:07:25,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:07:25,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 1217 [2023-08-30 11:07:25,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:07:27,229 INFO L130 PetriNetUnfolder]: 1680/2701 cut-off events. [2023-08-30 11:07:27,230 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2023-08-30 11:07:27,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5524 conditions, 2701 events. 1680/2701 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 15401 event pairs, 1320 based on Foata normal form. 13/862 useless extension candidates. Maximal degree in co-relation 5511. Up to 2656 conditions per place. [2023-08-30 11:07:27,235 INFO L137 encePairwiseOnDemand]: 1200/1217 looper letters, 63 selfloop transitions, 54 changer transitions 0/117 dead transitions. [2023-08-30 11:07:27,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 117 transitions, 654 flow [2023-08-30 11:07:27,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 11:07:27,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 11:07:27,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 6642 transitions. [2023-08-30 11:07:27,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32104016627193194 [2023-08-30 11:07:27,249 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 6642 transitions. [2023-08-30 11:07:27,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 6642 transitions. [2023-08-30 11:07:27,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:07:27,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 6642 transitions. [2023-08-30 11:07:27,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 390.70588235294116) internal successors, (6642), 17 states have internal predecessors, (6642), 0 states have call successors, (0), 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 11:07:27,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 1217.0) internal successors, (21906), 18 states have internal predecessors, (21906), 0 states have call successors, (0), 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 11:07:27,281 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 1217.0) internal successors, (21906), 18 states have internal predecessors, (21906), 0 states have call successors, (0), 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 11:07:27,281 INFO L175 Difference]: Start difference. First operand has 72 places, 103 transitions, 364 flow. Second operand 17 states and 6642 transitions. [2023-08-30 11:07:27,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 117 transitions, 654 flow [2023-08-30 11:07:27,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 117 transitions, 653 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:07:27,284 INFO L231 Difference]: Finished difference. Result has 94 places, 117 transitions, 607 flow [2023-08-30 11:07:27,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=607, PETRI_PLACES=94, PETRI_TRANSITIONS=117} [2023-08-30 11:07:27,285 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -5 predicate places. [2023-08-30 11:07:27,285 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 117 transitions, 607 flow [2023-08-30 11:07:27,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 385.70588235294116) internal successors, (6557), 17 states have internal predecessors, (6557), 0 states have call successors, (0), 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 11:07:27,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:07:27,287 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:07:27,299 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 11:07:27,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:07:27,497 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err25ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-08-30 11:07:27,497 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:07:27,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1875918174, now seen corresponding path program 2 times [2023-08-30 11:07:27,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:07:27,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111142135] [2023-08-30 11:07:27,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:07:27,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:07:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:07:28,087 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2023-08-30 11:07:28,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:07:28,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111142135] [2023-08-30 11:07:28,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111142135] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:07:28,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817026339] [2023-08-30 11:07:28,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 11:07:28,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:07:28,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:07:28,089 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 11:07:28,104 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 11:07:28,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 11:07:28,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 11:07:28,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-30 11:07:28,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:07:29,155 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2023-08-30 11:07:29,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 11:07:29,377 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2023-08-30 11:07:29,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817026339] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 11:07:29,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 11:07:29,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 35 [2023-08-30 11:07:29,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789762128] [2023-08-30 11:07:29,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 11:07:29,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 11:07:29,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:07:29,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 11:07:29,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=722, Unknown=0, NotChecked=0, Total=1190 [2023-08-30 11:07:30,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 1217 [2023-08-30 11:07:30,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 117 transitions, 607 flow. Second operand has 35 states, 35 states have (on average 384.48571428571427) internal successors, (13457), 35 states have internal predecessors, (13457), 0 states have call successors, (0), 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 11:07:30,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:07:30,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 1217 [2023-08-30 11:07:30,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:07:32,368 INFO L130 PetriNetUnfolder]: 1680/2707 cut-off events. [2023-08-30 11:07:32,368 INFO L131 PetriNetUnfolder]: For 199/199 co-relation queries the response was YES. [2023-08-30 11:07:32,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5649 conditions, 2707 events. 1680/2707 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 15362 event pairs, 1320 based on Foata normal form. 6/865 useless extension candidates. Maximal degree in co-relation 5628. Up to 2656 conditions per place. [2023-08-30 11:07:32,375 INFO L137 encePairwiseOnDemand]: 1200/1217 looper letters, 63 selfloop transitions, 60 changer transitions 0/123 dead transitions. [2023-08-30 11:07:32,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 123 transitions, 889 flow [2023-08-30 11:07:32,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 11:07:32,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 11:07:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 7023 transitions. [2023-08-30 11:07:32,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3205970966858395 [2023-08-30 11:07:32,384 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 7023 transitions. [2023-08-30 11:07:32,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 7023 transitions. [2023-08-30 11:07:32,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:07:32,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 7023 transitions. [2023-08-30 11:07:32,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 390.1666666666667) internal successors, (7023), 18 states have internal predecessors, (7023), 0 states have call successors, (0), 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 11:07:32,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 1217.0) internal successors, (23123), 19 states have internal predecessors, (23123), 0 states have call successors, (0), 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 11:07:32,417 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 1217.0) internal successors, (23123), 19 states have internal predecessors, (23123), 0 states have call successors, (0), 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 11:07:32,417 INFO L175 Difference]: Start difference. First operand has 94 places, 117 transitions, 607 flow. Second operand 18 states and 7023 transitions. [2023-08-30 11:07:32,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 123 transitions, 889 flow [2023-08-30 11:07:32,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 123 transitions, 861 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-30 11:07:32,421 INFO L231 Difference]: Finished difference. Result has 112 places, 123 transitions, 781 flow [2023-08-30 11:07:32,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=781, PETRI_PLACES=112, PETRI_TRANSITIONS=123} [2023-08-30 11:07:32,422 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 13 predicate places. [2023-08-30 11:07:32,422 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 123 transitions, 781 flow [2023-08-30 11:07:32,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 384.48571428571427) internal successors, (13457), 35 states have internal predecessors, (13457), 0 states have call successors, (0), 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 11:07:32,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:07:32,426 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:07:32,440 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 11:07:32,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:07:32,641 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err25ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-08-30 11:07:32,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:07:32,641 INFO L85 PathProgramCache]: Analyzing trace with hash -992695262, now seen corresponding path program 3 times [2023-08-30 11:07:32,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:07:32,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182332797] [2023-08-30 11:07:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:07:32,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:07:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:07:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-08-30 11:07:35,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:07:35,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182332797] [2023-08-30 11:07:35,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182332797] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:07:35,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311345004] [2023-08-30 11:07:35,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 11:07:35,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:07:35,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:07:35,664 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 11:07:35,684 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 11:07:50,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-08-30 11:07:50,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 11:07:50,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 74 conjunts are in the unsatisfiable core [2023-08-30 11:07:50,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:07:50,332 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 11:07:50,402 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 13 treesize of output 9 [2023-08-30 11:07:50,485 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-30 11:07:50,486 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 11:07:50,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,668 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-30 11:07:50,668 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 11:07:50,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:50,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,045 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-30 11:07:51,045 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 11:07:51,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 11:07:51,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:07:51,392 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 4 proven. 42 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2023-08-30 11:07:51,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 11:07:51,459 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1097 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_1097) c_~last_index_of_3~0.base) (+ c_~last_index_of_3~0.offset 12)) 2147483647)) (not (= c_~last_index_of_3~0.base |c_ULTIMATE.start_main_~#t1~0#1.base|))) is different from false [2023-08-30 11:07:55,716 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 11:07:55,717 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 64 treesize of output 65 [2023-08-30 11:07:55,728 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 11:07:55,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 102 [2023-08-30 11:07:55,735 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 90 treesize of output 82 [2023-08-30 11:07:55,741 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 82 treesize of output 78 [2023-08-30 11:07:56,047 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-30 11:07:56,050 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 98 treesize of output 96 [2023-08-30 11:07:56,117 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 218 trivial. 13 not checked. [2023-08-30 11:07:56,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311345004] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 11:07:56,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 11:07:56,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 8] total 31 [2023-08-30 11:07:56,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4044890] [2023-08-30 11:07:56,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 11:07:56,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-30 11:07:56,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:07:56,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-30 11:07:56,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=836, Unknown=2, NotChecked=60, Total=1056 [2023-08-30 11:07:56,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 1217 [2023-08-30 11:07:56,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 123 transitions, 781 flow. Second operand has 33 states, 33 states have (on average 311.06060606060606) internal successors, (10265), 33 states have internal predecessors, (10265), 0 states have call successors, (0), 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 11:07:56,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:07:56,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 1217 [2023-08-30 11:07:56,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:00,484 INFO L130 PetriNetUnfolder]: 1716/2811 cut-off events. [2023-08-30 11:08:00,484 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2023-08-30 11:08:00,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5932 conditions, 2811 events. 1716/2811 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 16774 event pairs, 436 based on Foata normal form. 0/905 useless extension candidates. Maximal degree in co-relation 5907. Up to 2085 conditions per place. [2023-08-30 11:08:00,493 INFO L137 encePairwiseOnDemand]: 1189/1217 looper letters, 141 selfloop transitions, 52 changer transitions 0/193 dead transitions. [2023-08-30 11:08:00,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 193 transitions, 1309 flow [2023-08-30 11:08:00,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-30 11:08:00,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-30 11:08:00,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 10071 transitions. [2023-08-30 11:08:00,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2586020953163517 [2023-08-30 11:08:00,508 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 10071 transitions. [2023-08-30 11:08:00,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 10071 transitions. [2023-08-30 11:08:00,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:00,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 10071 transitions. [2023-08-30 11:08:00,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 314.71875) internal successors, (10071), 32 states have internal predecessors, (10071), 0 states have call successors, (0), 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 11:08:00,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 1217.0) internal successors, (40161), 33 states have internal predecessors, (40161), 0 states have call successors, (0), 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 11:08:00,554 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 1217.0) internal successors, (40161), 33 states have internal predecessors, (40161), 0 states have call successors, (0), 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 11:08:00,554 INFO L175 Difference]: Start difference. First operand has 112 places, 123 transitions, 781 flow. Second operand 32 states and 10071 transitions. [2023-08-30 11:08:00,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 193 transitions, 1309 flow [2023-08-30 11:08:00,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 193 transitions, 1205 flow, removed 14 selfloop flow, removed 11 redundant places. [2023-08-30 11:08:00,560 INFO L231 Difference]: Finished difference. Result has 135 places, 129 transitions, 836 flow [2023-08-30 11:08:00,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=836, PETRI_PLACES=135, PETRI_TRANSITIONS=129} [2023-08-30 11:08:00,561 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 36 predicate places. [2023-08-30 11:08:00,561 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 129 transitions, 836 flow [2023-08-30 11:08:00,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 311.06060606060606) internal successors, (10265), 33 states have internal predecessors, (10265), 0 states have call successors, (0), 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 11:08:00,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:00,563 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:08:00,579 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 11:08:00,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:08:00,777 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-08-30 11:08:00,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:00,777 INFO L85 PathProgramCache]: Analyzing trace with hash -992695238, now seen corresponding path program 1 times [2023-08-30 11:08:00,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:00,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584509336] [2023-08-30 11:08:00,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:00,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-08-30 11:08:03,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:03,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584509336] [2023-08-30 11:08:03,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584509336] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:08:03,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339112810] [2023-08-30 11:08:03,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:03,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:08:03,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:08:03,929 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 11:08:03,936 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 11:08:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:04,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 139 conjunts are in the unsatisfiable core [2023-08-30 11:08:04,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:08:04,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 11:08:04,900 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2023-08-30 11:08:04,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 24 [2023-08-30 11:08:05,022 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 11:08:05,066 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-30 11:08:05,067 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 11:08:05,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,195 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-30 11:08:05,196 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 11:08:05,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,352 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-30 11:08:05,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-30 11:08:05,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,598 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2023-08-30 11:08:05,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2023-08-30 11:08:05,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:05,940 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2023-08-30 11:08:05,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2023-08-30 11:08:06,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:06,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:06,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:06,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:06,415 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2023-08-30 11:08:06,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2023-08-30 11:08:06,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:06,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:06,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:06,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:06,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:06,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:06,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:07,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:07,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:07,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:07,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:07,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:07,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:07,655 INFO L321 Elim1Store]: treesize reduction 20, result has 51.2 percent of original size [2023-08-30 11:08:07,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 39 [2023-08-30 11:08:07,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:07,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:07,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:07,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 11:08:07,890 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 21 treesize of output 20 [2023-08-30 11:08:07,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 11:08:07,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2023-08-30 11:08:08,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 11:08:08,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2023-08-30 11:08:08,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 11:08:08,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2023-08-30 11:08:08,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 11:08:08,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2023-08-30 11:08:08,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 11:08:08,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2023-08-30 11:08:08,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 11:08:08,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2023-08-30 11:08:08,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 11:08:08,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2023-08-30 11:08:08,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 11:08:08,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2023-08-30 11:08:08,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 11:08:08,488 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-08-30 11:08:08,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 34 [2023-08-30 11:08:08,538 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 28 proven. 107 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2023-08-30 11:08:08,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 11:08:42,728 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1418 Int) (v_ArrVal_1424 (Array Int Int)) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_730| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_726| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_727| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_728| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_729| Int) (v_ArrVal_1420 Int) (v_ArrVal_1422 Int) (v_ArrVal_1412 Int) (v_ArrVal_1415 Int) (v_ArrVal_1417 Int)) (or (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_727| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_728|)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_728| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_729|)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_729| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_730|)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_726| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_727|)) (<= 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| (store (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* 4 |c_ULTIMATE.start_create_fresh_int_array_~i~0#1|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1412) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_730|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1415) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_729|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1417) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_728|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1418) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_727|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1420) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_726|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1422)) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1424) c_~index_of_0~0.base) (+ c_~index_of_0~0.offset 16)) 2147483648)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_730| (+ |c_ULTIMATE.start_create_fresh_int_array_~i~0#1| 1)))) is different from false [2023-08-30 11:08:44,801 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1418 Int) (v_ArrVal_1424 (Array Int Int)) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_730| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_731| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_726| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_727| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_728| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_729| Int) (v_ArrVal_1420 Int) (v_ArrVal_1422 Int) (v_ArrVal_1410 Int) (v_ArrVal_1412 Int) (v_ArrVal_1415 Int) (v_ArrVal_1417 Int)) (or (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_727| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_728|)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_728| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_729|)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_729| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_730|)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_730| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_731|)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_726| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_727|)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_731| (+ |c_ULTIMATE.start_create_fresh_int_array_~i~0#1| 1)) (<= 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| (store (store (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* 4 |c_ULTIMATE.start_create_fresh_int_array_~i~0#1|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1410) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_731|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1412) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_730|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1415) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_729|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1417) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_728|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1418) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_727|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1420) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_726|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1422)) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1424) c_~index_of_0~0.base) (+ c_~index_of_0~0.offset 16)) 2147483648)))) is different from false [2023-08-30 11:09:08,810 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1407 Int) (v_ArrVal_1418 Int) (v_ArrVal_1409 Int) (v_ArrVal_1424 (Array Int Int)) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_730| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_731| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_732| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_733| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_726| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_727| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_728| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_729| Int) (v_ArrVal_1420 Int) (v_ArrVal_1422 Int) (v_ArrVal_1410 Int) (v_ArrVal_1412 Int) (v_ArrVal_1415 Int) (v_ArrVal_1417 Int)) (or (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_733| (+ |c_ULTIMATE.start_create_fresh_int_array_~i~0#1| 1)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_727| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_728|)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_728| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_729|)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_729| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_730|)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_730| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_731|)) (<= 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* 4 |c_ULTIMATE.start_create_fresh_int_array_~i~0#1|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1407) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_733|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1409) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_732|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1410) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_731|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1412) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_730|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1415) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_729|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1417) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_728|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1418) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_727|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1420) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_726|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1422)) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1424) c_~index_of_0~0.base) (+ c_~index_of_0~0.offset 16)) 2147483648)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_726| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_727|)) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_731| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_732|)) (< (+ v_ArrVal_1407 2147483648) 0) (< |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_732| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_733|)))) is different from false [2023-08-30 11:09:09,109 INFO L321 Elim1Store]: treesize reduction 1088, result has 7.8 percent of original size [2023-08-30 11:09:09,109 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 1 new quantified variables, introduced 9 case distinctions, treesize of input 81 treesize of output 109 [2023-08-30 11:09:09,337 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_2 (Array Int Int)) (v_ArrVal_1424 (Array Int Int))) (or (<= 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_arrayElimArr_2) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1424) c_~index_of_0~0.base) (+ c_~index_of_0~0.offset 16)) 2147483648)) (< (+ 2147483648 (select v_arrayElimArr_2 (+ (* 4 |c_ULTIMATE.start_create_fresh_int_array_~i~0#1|) 12 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) 0))) is different from false [2023-08-30 11:09:17,006 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 11:09:17,007 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 47 treesize of output 48 [2023-08-30 11:09:17,535 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 11:09:17,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 10204741635 treesize of output 10192158723 [2023-08-30 11:09:22,086 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 2423 treesize of output 2295 [2023-08-30 11:09:22,163 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 2295 treesize of output 2263 [2023-08-30 11:09:22,242 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 2263 treesize of output 2259 [2023-08-30 11:09:22,318 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 2259 treesize of output 2243 [2023-08-30 11:09:22,393 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 2243 treesize of output 2179 [2023-08-30 11:09:22,470 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 2179 treesize of output 2171 [2023-08-30 11:09:22,544 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 4598 treesize of output 4086 [2023-08-30 11:09:22,629 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 11:09:22,630 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 2178 treesize of output 1928 [2023-08-30 11:14:30,306 WARN L222 SmtUtils]: Spent 4.79m on a formula simplification. DAG size of input: 290 DAG size of output: 284 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Killed by 15