./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --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 09:46:55,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:46:55,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:46:55,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:46:55,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:46:55,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:46:55,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:46:55,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:46:55,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:46:55,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:46:55,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:46:55,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:46:55,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:46:55,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:46:55,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:46:55,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:46:55,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:46:55,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:46:55,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:46:55,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:46:55,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:46:55,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:46:55,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:46:55,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:46:55,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:46:55,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:46:55,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:46:55,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:46:55,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:46:55,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:46:55,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:46:55,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:46:55,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:46:55,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:46:55,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:46:55,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:46:55,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:46:55,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:46:55,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:46:55,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:46:55,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:46:55,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:46:55,182 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:46:55,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:46:55,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:46:55,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:46:55,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:46:55,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:46:55,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:46:55,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:46:55,185 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:46:55,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:46:55,185 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:46:55,186 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:46:55,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:46:55,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:46:55,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:46:55,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:46:55,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:46:55,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:46:55,187 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:46:55,187 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:46:55,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:46:55,188 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:46:55,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:46:55,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:46:55,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:46:55,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:46:55,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:46:55,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:46:55,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:46:55,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:46:55,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:46:55,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:46:55,190 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:46:55,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:46:55,191 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:46:55,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:46:55,191 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:46:55,191 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:46:55,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:46:55,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:46:55,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:46:55,485 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:46:55,485 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:46:55,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2023-08-30 09:46:56,519 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:46:56,748 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:46:56,752 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2023-08-30 09:46:56,781 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/781afaaa7/b871a789950c4fe1bec6e1f6794cc754/FLAG075bd9a7d [2023-08-30 09:46:56,797 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/781afaaa7/b871a789950c4fe1bec6e1f6794cc754 [2023-08-30 09:46:56,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:46:56,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:46:56,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:46:56,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:46:56,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:46:56,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:46:56" (1/1) ... [2023-08-30 09:46:56,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f93683b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:56, skipping insertion in model container [2023-08-30 09:46:56,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:46:56" (1/1) ... [2023-08-30 09:46:56,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:46:56,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:46:56,958 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2023-08-30 09:46:57,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:46:57,082 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:46:57,090 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2023-08-30 09:46:57,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:46:57,147 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:46:57,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57 WrapperNode [2023-08-30 09:46:57,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:46:57,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:46:57,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:46:57,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:46:57,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57" (1/1) ... [2023-08-30 09:46:57,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57" (1/1) ... [2023-08-30 09:46:57,178 INFO L138 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 104 [2023-08-30 09:46:57,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:46:57,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:46:57,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:46:57,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:46:57,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57" (1/1) ... [2023-08-30 09:46:57,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57" (1/1) ... [2023-08-30 09:46:57,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57" (1/1) ... [2023-08-30 09:46:57,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57" (1/1) ... [2023-08-30 09:46:57,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57" (1/1) ... [2023-08-30 09:46:57,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57" (1/1) ... [2023-08-30 09:46:57,195 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57" (1/1) ... [2023-08-30 09:46:57,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57" (1/1) ... [2023-08-30 09:46:57,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:46:57,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:46:57,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:46:57,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:46:57,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57" (1/1) ... [2023-08-30 09:46:57,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:46:57,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:46:57,223 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 09:46:57,235 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 09:46:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 09:46:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-30 09:46:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-30 09:46:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:46:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 09:46:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:46:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:46:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 09:46:57,262 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 09:46:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:46:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:46:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:46:57,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:46:57,264 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 09:46:57,383 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:46:57,385 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:46:57,624 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:46:57,630 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:46:57,630 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 09:46:57,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:46:57 BoogieIcfgContainer [2023-08-30 09:46:57,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:46:57,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:46:57,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:46:57,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:46:57,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:46:56" (1/3) ... [2023-08-30 09:46:57,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1504b3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:46:57, skipping insertion in model container [2023-08-30 09:46:57,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:57" (2/3) ... [2023-08-30 09:46:57,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1504b3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:46:57, skipping insertion in model container [2023-08-30 09:46:57,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:46:57" (3/3) ... [2023-08-30 09:46:57,638 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2023-08-30 09:46:57,644 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:46:57,650 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:46:57,651 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 09:46:57,651 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:46:57,705 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 09:46:57,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 159 transitions, 334 flow [2023-08-30 09:46:57,780 INFO L130 PetriNetUnfolder]: 4/157 cut-off events. [2023-08-30 09:46:57,781 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:46:57,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 4/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 109. Up to 2 conditions per place. [2023-08-30 09:46:57,786 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 159 transitions, 334 flow [2023-08-30 09:46:57,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 148 transitions, 305 flow [2023-08-30 09:46:57,792 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:46:57,797 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 148 transitions, 305 flow [2023-08-30 09:46:57,800 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 148 transitions, 305 flow [2023-08-30 09:46:57,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 148 transitions, 305 flow [2023-08-30 09:46:57,829 INFO L130 PetriNetUnfolder]: 4/148 cut-off events. [2023-08-30 09:46:57,829 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 09:46:57,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 148 events. 4/148 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 109. Up to 2 conditions per place. [2023-08-30 09:46:57,833 INFO L119 LiptonReduction]: Number of co-enabled transitions 6916 [2023-08-30 09:47:01,038 INFO L134 LiptonReduction]: Checked pairs total: 20452 [2023-08-30 09:47:01,039 INFO L136 LiptonReduction]: Total number of compositions: 125 [2023-08-30 09:47:01,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:47:01,063 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;@5ea4d72d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:47:01,064 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-08-30 09:47:01,066 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-08-30 09:47:01,066 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:47:01,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:47:01,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 09:47:01,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-08-30 09:47:01,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:47:01,069 INFO L85 PathProgramCache]: Analyzing trace with hash 16742456, now seen corresponding path program 1 times [2023-08-30 09:47:01,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:47:01,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108868084] [2023-08-30 09:47:01,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:47:01,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:47:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:47:01,236 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 09:47:01,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:47:01,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108868084] [2023-08-30 09:47:01,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108868084] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:47:01,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:47:01,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:47:01,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930207411] [2023-08-30 09:47:01,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:47:01,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:47:01,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:47:01,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:47:01,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:47:01,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 284 [2023-08-30 09:47:01,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 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 09:47:01,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:47:01,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 284 [2023-08-30 09:47:01,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:47:01,900 INFO L130 PetriNetUnfolder]: 3584/5900 cut-off events. [2023-08-30 09:47:01,901 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-30 09:47:01,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11588 conditions, 5900 events. 3584/5900 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 38107 event pairs, 988 based on Foata normal form. 264/4728 useless extension candidates. Maximal degree in co-relation 11483. Up to 4228 conditions per place. [2023-08-30 09:47:01,931 INFO L137 encePairwiseOnDemand]: 275/284 looper letters, 69 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2023-08-30 09:47:01,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 304 flow [2023-08-30 09:47:01,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:47:01,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:47:01,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2023-08-30 09:47:01,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5997652582159625 [2023-08-30 09:47:01,949 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2023-08-30 09:47:01,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2023-08-30 09:47:01,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:47:01,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2023-08-30 09:47:01,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 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 09:47:01,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:47:01,967 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:47:01,969 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 113 flow. Second operand 3 states and 511 transitions. [2023-08-30 09:47:01,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 304 flow [2023-08-30 09:47:01,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 75 transitions, 298 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 09:47:01,979 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 108 flow [2023-08-30 09:47:01,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2023-08-30 09:47:01,984 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2023-08-30 09:47:01,985 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 108 flow [2023-08-30 09:47:01,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 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 09:47:01,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:47:01,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:47:01,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:47:01,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-08-30 09:47:01,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:47:01,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1087900393, now seen corresponding path program 1 times [2023-08-30 09:47:01,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:47:01,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337026464] [2023-08-30 09:47:01,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:47:01,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:47:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:47:02,145 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 09:47:02,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:47:02,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337026464] [2023-08-30 09:47:02,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337026464] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:47:02,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:47:02,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:47:02,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991295857] [2023-08-30 09:47:02,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:47:02,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:47:02,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:47:02,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:47:02,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:47:02,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 284 [2023-08-30 09:47:02,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 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 09:47:02,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:47:02,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 284 [2023-08-30 09:47:02,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:47:02,532 INFO L130 PetriNetUnfolder]: 2535/4379 cut-off events. [2023-08-30 09:47:02,532 INFO L131 PetriNetUnfolder]: For 228/228 co-relation queries the response was YES. [2023-08-30 09:47:02,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8845 conditions, 4379 events. 2535/4379 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 28190 event pairs, 765 based on Foata normal form. 0/3647 useless extension candidates. Maximal degree in co-relation 6975. Up to 2818 conditions per place. [2023-08-30 09:47:02,548 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 65 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2023-08-30 09:47:02,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 72 transitions, 300 flow [2023-08-30 09:47:02,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:47:02,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:47:02,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 502 transitions. [2023-08-30 09:47:02,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5892018779342723 [2023-08-30 09:47:02,550 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 502 transitions. [2023-08-30 09:47:02,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 502 transitions. [2023-08-30 09:47:02,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:47:02,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 502 transitions. [2023-08-30 09:47:02,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 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 09:47:02,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:47:02,553 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:47:02,553 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 108 flow. Second operand 3 states and 502 transitions. [2023-08-30 09:47:02,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 72 transitions, 300 flow [2023-08-30 09:47:02,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 72 transitions, 294 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:47:02,555 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 108 flow [2023-08-30 09:47:02,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2023-08-30 09:47:02,556 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2023-08-30 09:47:02,556 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 108 flow [2023-08-30 09:47:02,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 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 09:47:02,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:47:02,557 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:47:02,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:47:02,557 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-08-30 09:47:02,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:47:02,558 INFO L85 PathProgramCache]: Analyzing trace with hash 558770835, now seen corresponding path program 1 times [2023-08-30 09:47:02,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:47:02,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937675632] [2023-08-30 09:47:02,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:47:02,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:47:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:47:02,616 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 09:47:02,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:47:02,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937675632] [2023-08-30 09:47:02,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937675632] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:47:02,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:47:02,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:47:02,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068103120] [2023-08-30 09:47:02,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:47:02,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:47:02,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:47:02,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:47:02,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:47:02,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 284 [2023-08-30 09:47:02,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 0 states have call successors, (0), 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 09:47:02,655 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:47:02,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 284 [2023-08-30 09:47:02,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:47:03,041 INFO L130 PetriNetUnfolder]: 2535/4218 cut-off events. [2023-08-30 09:47:03,042 INFO L131 PetriNetUnfolder]: For 286/286 co-relation queries the response was YES. [2023-08-30 09:47:03,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8903 conditions, 4218 events. 2535/4218 cut-off events. For 286/286 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 26758 event pairs, 437 based on Foata normal form. 0/3710 useless extension candidates. Maximal degree in co-relation 7898. Up to 1475 conditions per place. [2023-08-30 09:47:03,056 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 113 selfloop transitions, 4 changer transitions 3/124 dead transitions. [2023-08-30 09:47:03,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 124 transitions, 531 flow [2023-08-30 09:47:03,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 09:47:03,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 09:47:03,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 821 transitions. [2023-08-30 09:47:03,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.578169014084507 [2023-08-30 09:47:03,058 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 821 transitions. [2023-08-30 09:47:03,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 821 transitions. [2023-08-30 09:47:03,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:47:03,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 821 transitions. [2023-08-30 09:47:03,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 164.2) internal successors, (821), 5 states have internal predecessors, (821), 0 states have call successors, (0), 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 09:47:03,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 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 09:47:03,063 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 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 09:47:03,063 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 108 flow. Second operand 5 states and 821 transitions. [2023-08-30 09:47:03,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 124 transitions, 531 flow [2023-08-30 09:47:03,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 124 transitions, 521 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:47:03,065 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 110 flow [2023-08-30 09:47:03,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=110, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2023-08-30 09:47:03,066 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2023-08-30 09:47:03,066 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 110 flow [2023-08-30 09:47:03,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 0 states have call successors, (0), 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 09:47:03,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:47:03,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:47:03,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 09:47:03,067 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-08-30 09:47:03,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:47:03,067 INFO L85 PathProgramCache]: Analyzing trace with hash 558770851, now seen corresponding path program 1 times [2023-08-30 09:47:03,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:47:03,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224397006] [2023-08-30 09:47:03,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:47:03,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:47:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:47:03,109 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 09:47:03,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:47:03,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224397006] [2023-08-30 09:47:03,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224397006] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:47:03,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:47:03,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:47:03,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866841624] [2023-08-30 09:47:03,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:47:03,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:47:03,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:47:03,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:47:03,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:47:03,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 284 [2023-08-30 09:47:03,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 110 flow. Second operand has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 0 states have call successors, (0), 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 09:47:03,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:47:03,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 284 [2023-08-30 09:47:03,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:47:03,441 INFO L130 PetriNetUnfolder]: 2225/3738 cut-off events. [2023-08-30 09:47:03,442 INFO L131 PetriNetUnfolder]: For 277/277 co-relation queries the response was YES. [2023-08-30 09:47:03,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8215 conditions, 3738 events. 2225/3738 cut-off events. For 277/277 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 23079 event pairs, 419 based on Foata normal form. 0/3438 useless extension candidates. Maximal degree in co-relation 7230. Up to 1475 conditions per place. [2023-08-30 09:47:03,456 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 103 selfloop transitions, 4 changer transitions 13/123 dead transitions. [2023-08-30 09:47:03,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 123 transitions, 525 flow [2023-08-30 09:47:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 09:47:03,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 09:47:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 820 transitions. [2023-08-30 09:47:03,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5774647887323944 [2023-08-30 09:47:03,458 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 820 transitions. [2023-08-30 09:47:03,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 820 transitions. [2023-08-30 09:47:03,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:47:03,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 820 transitions. [2023-08-30 09:47:03,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 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 09:47:03,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 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 09:47:03,464 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 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 09:47:03,464 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 110 flow. Second operand 5 states and 820 transitions. [2023-08-30 09:47:03,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 123 transitions, 525 flow [2023-08-30 09:47:03,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 123 transitions, 517 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 09:47:03,467 INFO L231 Difference]: Finished difference. Result has 53 places, 39 transitions, 100 flow [2023-08-30 09:47:03,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2023-08-30 09:47:03,468 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2023-08-30 09:47:03,468 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 100 flow [2023-08-30 09:47:03,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 0 states have call successors, (0), 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 09:47:03,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:47:03,469 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:47:03,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 09:47:03,470 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-08-30 09:47:03,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:47:03,470 INFO L85 PathProgramCache]: Analyzing trace with hash 182484508, now seen corresponding path program 1 times [2023-08-30 09:47:03,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:47:03,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395399772] [2023-08-30 09:47:03,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:47:03,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:47:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:47:03,523 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 09:47:03,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:47:03,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395399772] [2023-08-30 09:47:03,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395399772] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:47:03,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:47:03,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:47:03,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385198844] [2023-08-30 09:47:03,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:47:03,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:47:03,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:47:03,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:47:03,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:47:03,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 284 [2023-08-30 09:47:03,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 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 09:47:03,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:47:03,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 284 [2023-08-30 09:47:03,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:47:03,700 INFO L130 PetriNetUnfolder]: 995/1776 cut-off events. [2023-08-30 09:47:03,701 INFO L131 PetriNetUnfolder]: For 199/199 co-relation queries the response was YES. [2023-08-30 09:47:03,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3862 conditions, 1776 events. 995/1776 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9566 event pairs, 332 based on Foata normal form. 0/1772 useless extension candidates. Maximal degree in co-relation 2723. Up to 711 conditions per place. [2023-08-30 09:47:03,711 INFO L137 encePairwiseOnDemand]: 280/284 looper letters, 81 selfloop transitions, 3 changer transitions 0/88 dead transitions. [2023-08-30 09:47:03,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 88 transitions, 386 flow [2023-08-30 09:47:03,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 09:47:03,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 09:47:03,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 785 transitions. [2023-08-30 09:47:03,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5528169014084507 [2023-08-30 09:47:03,714 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 785 transitions. [2023-08-30 09:47:03,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 785 transitions. [2023-08-30 09:47:03,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:47:03,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 785 transitions. [2023-08-30 09:47:03,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 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 09:47:03,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 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 09:47:03,719 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 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 09:47:03,719 INFO L175 Difference]: Start difference. First operand has 53 places, 39 transitions, 100 flow. Second operand 5 states and 785 transitions. [2023-08-30 09:47:03,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 88 transitions, 386 flow [2023-08-30 09:47:03,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 88 transitions, 370 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 09:47:03,722 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 96 flow [2023-08-30 09:47:03,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=96, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2023-08-30 09:47:03,722 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -8 predicate places. [2023-08-30 09:47:03,723 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 96 flow [2023-08-30 09:47:03,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 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 09:47:03,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:47:03,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:47:03,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 09:47:03,724 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-08-30 09:47:03,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:47:03,724 INFO L85 PathProgramCache]: Analyzing trace with hash 182484496, now seen corresponding path program 1 times [2023-08-30 09:47:03,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:47:03,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525185757] [2023-08-30 09:47:03,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:47:03,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:47:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:47:03,776 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 09:47:03,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:47:03,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525185757] [2023-08-30 09:47:03,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525185757] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:47:03,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:47:03,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:47:03,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054618555] [2023-08-30 09:47:03,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:47:03,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:47:03,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:47:03,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:47:03,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:47:03,796 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 284 [2023-08-30 09:47:03,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 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 09:47:03,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:47:03,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 284 [2023-08-30 09:47:03,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:47:03,944 INFO L130 PetriNetUnfolder]: 765/1417 cut-off events. [2023-08-30 09:47:03,944 INFO L131 PetriNetUnfolder]: For 134/134 co-relation queries the response was YES. [2023-08-30 09:47:03,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3185 conditions, 1417 events. 765/1417 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7443 event pairs, 325 based on Foata normal form. 129/1542 useless extension candidates. Maximal degree in co-relation 2272. Up to 584 conditions per place. [2023-08-30 09:47:03,946 INFO L137 encePairwiseOnDemand]: 280/284 looper letters, 0 selfloop transitions, 0 changer transitions 87/87 dead transitions. [2023-08-30 09:47:03,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 87 transitions, 372 flow [2023-08-30 09:47:03,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 09:47:03,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 09:47:03,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 784 transitions. [2023-08-30 09:47:03,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5521126760563381 [2023-08-30 09:47:03,948 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 784 transitions. [2023-08-30 09:47:03,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 784 transitions. [2023-08-30 09:47:03,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:47:03,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 784 transitions. [2023-08-30 09:47:03,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 156.8) internal successors, (784), 5 states have internal predecessors, (784), 0 states have call successors, (0), 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 09:47:03,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 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 09:47:03,952 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 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 09:47:03,952 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 96 flow. Second operand 5 states and 784 transitions. [2023-08-30 09:47:03,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 87 transitions, 372 flow [2023-08-30 09:47:03,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 87 transitions, 367 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 09:47:03,953 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2023-08-30 09:47:03,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2023-08-30 09:47:03,954 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -8 predicate places. [2023-08-30 09:47:03,954 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2023-08-30 09:47:03,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 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 09:47:03,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-08-30 09:47:03,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-08-30 09:47:03,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-08-30 09:47:03,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-08-30 09:47:03,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 18 remaining) [2023-08-30 09:47:03,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 18 remaining) [2023-08-30 09:47:03,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-08-30 09:47:03,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-08-30 09:47:03,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2023-08-30 09:47:03,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2023-08-30 09:47:03,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-08-30 09:47:03,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-08-30 09:47:03,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-08-30 09:47:03,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-08-30 09:47:03,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-08-30 09:47:03,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-08-30 09:47:03,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-08-30 09:47:03,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-08-30 09:47:03,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 09:47:03,959 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-30 09:47:03,962 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 09:47:03,962 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 09:47:03,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 09:47:03 BasicIcfg [2023-08-30 09:47:03,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 09:47:03,965 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 09:47:03,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 09:47:03,965 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 09:47:03,965 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:46:57" (3/4) ... [2023-08-30 09:47:03,967 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 09:47:03,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2023-08-30 09:47:03,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 09:47:03,973 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-08-30 09:47:03,974 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 09:47:03,974 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 09:47:03,974 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 09:47:03,996 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 09:47:03,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 09:47:03,996 INFO L158 Benchmark]: Toolchain (without parser) took 7196.85ms. Allocated memory was 88.1MB in the beginning and 312.5MB in the end (delta: 224.4MB). Free memory was 64.3MB in the beginning and 163.1MB in the end (delta: -98.8MB). Peak memory consumption was 127.7MB. Max. memory is 16.1GB. [2023-08-30 09:47:03,996 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:47:03,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.50ms. Allocated memory is still 88.1MB. Free memory was 64.0MB in the beginning and 44.5MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 09:47:03,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.99ms. Allocated memory is still 88.1MB. Free memory was 44.5MB in the beginning and 42.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:47:03,997 INFO L158 Benchmark]: Boogie Preprocessor took 19.79ms. Allocated memory is still 88.1MB. Free memory was 42.1MB in the beginning and 40.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:47:03,997 INFO L158 Benchmark]: RCFGBuilder took 433.08ms. Allocated memory is still 88.1MB. Free memory was 40.6MB in the beginning and 53.3MB in the end (delta: -12.7MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-08-30 09:47:03,997 INFO L158 Benchmark]: TraceAbstraction took 6331.38ms. Allocated memory was 88.1MB in the beginning and 312.5MB in the end (delta: 224.4MB). Free memory was 52.6MB in the beginning and 166.2MB in the end (delta: -113.6MB). Peak memory consumption was 110.2MB. Max. memory is 16.1GB. [2023-08-30 09:47:03,998 INFO L158 Benchmark]: Witness Printer took 31.03ms. Allocated memory is still 312.5MB. Free memory was 166.2MB in the beginning and 163.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:47:03,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.50ms. Allocated memory is still 88.1MB. Free memory was 64.0MB in the beginning and 44.5MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.99ms. Allocated memory is still 88.1MB. Free memory was 44.5MB in the beginning and 42.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.79ms. Allocated memory is still 88.1MB. Free memory was 42.1MB in the beginning and 40.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.08ms. Allocated memory is still 88.1MB. Free memory was 40.6MB in the beginning and 53.3MB in the end (delta: -12.7MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6331.38ms. Allocated memory was 88.1MB in the beginning and 312.5MB in the end (delta: 224.4MB). Free memory was 52.6MB in the beginning and 166.2MB in the end (delta: -113.6MB). Peak memory consumption was 110.2MB. Max. memory is 16.1GB. * Witness Printer took 31.03ms. Allocated memory is still 312.5MB. Free memory was 166.2MB in the beginning and 163.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 151 PlacesBefore, 56 PlacesAfterwards, 148 TransitionsBefore, 52 TransitionsAfterwards, 6916 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 125 TotalNumberOfCompositions, 20452 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6983, independent: 6512, independent conditional: 0, independent unconditional: 6512, dependent: 471, dependent conditional: 0, dependent unconditional: 471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3646, independent: 3542, independent conditional: 0, independent unconditional: 3542, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6983, independent: 2970, independent conditional: 0, independent unconditional: 2970, dependent: 367, dependent conditional: 0, dependent unconditional: 367, unknown: 3646, unknown conditional: 0, unknown unconditional: 3646] , Statistics on independence cache: Total cache size (in pairs): 234, Positive cache size: 184, Positive conditional cache size: 0, Positive unconditional cache size: 184, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 212 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 559 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 471 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1088 IncrementalHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 21 mSDtfsCounter, 1088 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 09:47:04,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE