./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.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 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:25:17,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:25:17,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:25:17,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:25:17,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:25:17,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:25:17,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:25:17,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:25:17,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:25:17,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:25:17,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:25:17,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:25:17,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:25:17,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:25:17,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:25:17,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:25:17,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:25:17,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:25:17,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:25:17,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:25:17,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:25:17,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:25:17,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:25:17,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:25:17,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:25:17,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:25:17,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:25:17,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:25:17,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:25:17,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:25:17,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:25:17,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:25:17,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:25:17,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:25:17,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:25:17,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:25:17,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:25:17,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:25:17,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:25:17,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:25:17,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:25:17,910 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:25:17,933 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:25:17,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:25:17,934 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:25:17,934 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:25:17,935 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:25:17,935 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:25:17,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:25:17,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:25:17,937 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:25:17,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:25:17,938 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:25:17,938 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:25:17,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:25:17,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:25:17,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:25:17,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:25:17,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:25:17,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:25:17,939 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:25:17,939 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:25:17,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:25:17,939 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:25:17,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:25:17,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:25:17,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:25:17,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:25:17,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:25:17,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:25:17,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:25:17,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:25:17,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:25:17,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:25:17,942 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:25:17,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:25:17,942 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:25:17,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:25:17,942 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:25:17,942 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:25:18,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:25:18,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:25:18,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:25:18,293 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:25:18,293 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:25:18,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-09-01 05:25:19,357 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:25:19,570 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:25:19,571 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-09-01 05:25:19,581 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b00a8141/68adbc16ab42410f86f78d39b2e54c19/FLAG41d1048c3 [2023-09-01 05:25:19,911 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b00a8141/68adbc16ab42410f86f78d39b2e54c19 [2023-09-01 05:25:19,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:25:19,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:25:19,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:25:19,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:25:19,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:25:19,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:25:19" (1/1) ... [2023-09-01 05:25:19,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad9bfa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:19, skipping insertion in model container [2023-09-01 05:25:19,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:25:19" (1/1) ... [2023-09-01 05:25:19,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:25:19,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:25:20,074 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-09-01 05:25:20,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:25:20,199 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:25:20,209 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-09-01 05:25:20,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:25:20,299 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:25:20,300 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:25:20,304 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:25:20,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20 WrapperNode [2023-09-01 05:25:20,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:25:20,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:25:20,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:25:20,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:25:20,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20" (1/1) ... [2023-09-01 05:25:20,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20" (1/1) ... [2023-09-01 05:25:20,351 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2023-09-01 05:25:20,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:25:20,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:25:20,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:25:20,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:25:20,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20" (1/1) ... [2023-09-01 05:25:20,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20" (1/1) ... [2023-09-01 05:25:20,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20" (1/1) ... [2023-09-01 05:25:20,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20" (1/1) ... [2023-09-01 05:25:20,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20" (1/1) ... [2023-09-01 05:25:20,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20" (1/1) ... [2023-09-01 05:25:20,368 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20" (1/1) ... [2023-09-01 05:25:20,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20" (1/1) ... [2023-09-01 05:25:20,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:25:20,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:25:20,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:25:20,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:25:20,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20" (1/1) ... [2023-09-01 05:25:20,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:25:20,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:25:20,407 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) [2023-09-01 05:25:20,476 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 [2023-09-01 05:25:20,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:25:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:25:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:25:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:25:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:25:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:25:20,493 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:25:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:25:20,493 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:25:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:25:20,494 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:25:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-09-01 05:25:20,494 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-09-01 05:25:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:25:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:25:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:25:20,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:25:20,496 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:25:20,594 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:25:20,596 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:25:20,765 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:25:20,792 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:25:20,793 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:25:20,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:25:20 BoogieIcfgContainer [2023-09-01 05:25:20,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:25:20,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:25:20,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:25:20,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:25:20,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:25:19" (1/3) ... [2023-09-01 05:25:20,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da903f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:25:20, skipping insertion in model container [2023-09-01 05:25:20,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:20" (2/3) ... [2023-09-01 05:25:20,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da903f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:25:20, skipping insertion in model container [2023-09-01 05:25:20,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:25:20" (3/3) ... [2023-09-01 05:25:20,802 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-09-01 05:25:20,808 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:25:20,822 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:25:20,822 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 05:25:20,823 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:25:20,874 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:25:20,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 106 transitions, 232 flow [2023-09-01 05:25:20,931 INFO L130 PetriNetUnfolder]: 2/102 cut-off events. [2023-09-01 05:25:20,932 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:20,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2023-09-01 05:25:20,937 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 106 transitions, 232 flow [2023-09-01 05:25:20,940 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 102 transitions, 216 flow [2023-09-01 05:25:20,943 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:25:20,949 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 102 transitions, 216 flow [2023-09-01 05:25:20,951 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 102 transitions, 216 flow [2023-09-01 05:25:20,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 102 transitions, 216 flow [2023-09-01 05:25:20,983 INFO L130 PetriNetUnfolder]: 2/102 cut-off events. [2023-09-01 05:25:20,983 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:20,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2023-09-01 05:25:20,985 INFO L119 LiptonReduction]: Number of co-enabled transitions 3058 [2023-09-01 05:25:23,063 INFO L134 LiptonReduction]: Checked pairs total: 8189 [2023-09-01 05:25:23,064 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-09-01 05:25:23,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:25:23,085 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;@3ab27253, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:25:23,086 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-09-01 05:25:23,090 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:25:23,090 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:23,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:23,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:25:23,092 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:25:23,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:23,097 INFO L85 PathProgramCache]: Analyzing trace with hash 363989250, now seen corresponding path program 1 times [2023-09-01 05:25:23,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:23,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953951170] [2023-09-01 05:25:23,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:23,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:23,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:23,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:23,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953951170] [2023-09-01 05:25:23,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953951170] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:23,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:23,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:25:23,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362743743] [2023-09-01 05:25:23,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:23,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:25:23,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:23,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:25:23,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:25:23,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 190 [2023-09-01 05:25:23,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:23,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:23,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 190 [2023-09-01 05:25:23,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:23,826 INFO L130 PetriNetUnfolder]: 3036/4372 cut-off events. [2023-09-01 05:25:23,826 INFO L131 PetriNetUnfolder]: For 76/76 co-relation queries the response was YES. [2023-09-01 05:25:23,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8912 conditions, 4372 events. 3036/4372 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 23747 event pairs, 999 based on Foata normal form. 0/2787 useless extension candidates. Maximal degree in co-relation 8900. Up to 4171 conditions per place. [2023-09-01 05:25:23,860 INFO L137 encePairwiseOnDemand]: 176/190 looper letters, 37 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2023-09-01 05:25:23,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 44 transitions, 193 flow [2023-09-01 05:25:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:25:23,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:25:23,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2023-09-01 05:25:23,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2023-09-01 05:25:23,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2023-09-01 05:25:23,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2023-09-01 05:25:23,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:23,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2023-09-01 05:25:23,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:23,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:23,877 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:23,878 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 70 flow. Second operand 3 states and 310 transitions. [2023-09-01 05:25:23,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 44 transitions, 193 flow [2023-09-01 05:25:23,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 44 transitions, 186 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 05:25:23,881 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 111 flow [2023-09-01 05:25:23,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2023-09-01 05:25:23,885 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2023-09-01 05:25:23,885 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 111 flow [2023-09-01 05:25:23,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:23,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:23,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:25:23,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:25:23,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:25:23,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:23,886 INFO L85 PathProgramCache]: Analyzing trace with hash 2095635966, now seen corresponding path program 1 times [2023-09-01 05:25:23,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:23,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302618039] [2023-09-01 05:25:23,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:23,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:23,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:23,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302618039] [2023-09-01 05:25:23,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302618039] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:23,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:23,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:25:23,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808873070] [2023-09-01 05:25:23,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:23,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:25:23,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:23,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:25:23,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:25:23,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 190 [2023-09-01 05:25:23,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:23,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:23,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 190 [2023-09-01 05:25:23,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:24,148 INFO L130 PetriNetUnfolder]: 1540/2242 cut-off events. [2023-09-01 05:25:24,149 INFO L131 PetriNetUnfolder]: For 124/134 co-relation queries the response was YES. [2023-09-01 05:25:24,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5839 conditions, 2242 events. 1540/2242 cut-off events. For 124/134 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 10688 event pairs, 387 based on Foata normal form. 8/1755 useless extension candidates. Maximal degree in co-relation 5828. Up to 2040 conditions per place. [2023-09-01 05:25:24,157 INFO L137 encePairwiseOnDemand]: 181/190 looper letters, 33 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-09-01 05:25:24,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 40 transitions, 201 flow [2023-09-01 05:25:24,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:25:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:25:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 386 transitions. [2023-09-01 05:25:24,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5078947368421053 [2023-09-01 05:25:24,160 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 386 transitions. [2023-09-01 05:25:24,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 386 transitions. [2023-09-01 05:25:24,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:24,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 386 transitions. [2023-09-01 05:25:24,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,163 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,163 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 111 flow. Second operand 4 states and 386 transitions. [2023-09-01 05:25:24,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 40 transitions, 201 flow [2023-09-01 05:25:24,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 40 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:25:24,164 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 100 flow [2023-09-01 05:25:24,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2023-09-01 05:25:24,165 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -3 predicate places. [2023-09-01 05:25:24,165 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 100 flow [2023-09-01 05:25:24,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:24,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:25:24,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:25:24,165 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:25:24,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:24,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2095635967, now seen corresponding path program 1 times [2023-09-01 05:25:24,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:24,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851098405] [2023-09-01 05:25:24,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:24,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:24,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:24,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:24,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851098405] [2023-09-01 05:25:24,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851098405] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:24,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:24,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:25:24,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555603118] [2023-09-01 05:25:24,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:24,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:25:24,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:24,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:25:24,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:25:24,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 190 [2023-09-01 05:25:24,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:24,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 190 [2023-09-01 05:25:24,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:24,452 INFO L130 PetriNetUnfolder]: 868/1308 cut-off events. [2023-09-01 05:25:24,452 INFO L131 PetriNetUnfolder]: For 374/384 co-relation queries the response was YES. [2023-09-01 05:25:24,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3382 conditions, 1308 events. 868/1308 cut-off events. For 374/384 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5672 event pairs, 148 based on Foata normal form. 8/1185 useless extension candidates. Maximal degree in co-relation 3370. Up to 707 conditions per place. [2023-09-01 05:25:24,459 INFO L137 encePairwiseOnDemand]: 181/190 looper letters, 43 selfloop transitions, 9 changer transitions 0/54 dead transitions. [2023-09-01 05:25:24,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 274 flow [2023-09-01 05:25:24,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:25:24,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:25:24,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 400 transitions. [2023-09-01 05:25:24,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2023-09-01 05:25:24,477 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 400 transitions. [2023-09-01 05:25:24,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 400 transitions. [2023-09-01 05:25:24,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:24,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 400 transitions. [2023-09-01 05:25:24,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,481 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,481 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 100 flow. Second operand 4 states and 400 transitions. [2023-09-01 05:25:24,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 274 flow [2023-09-01 05:25:24,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:25:24,484 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 152 flow [2023-09-01 05:25:24,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2023-09-01 05:25:24,486 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2023-09-01 05:25:24,488 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 152 flow [2023-09-01 05:25:24,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:24,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:25:24,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:25:24,489 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:25:24,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:24,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1949626454, now seen corresponding path program 1 times [2023-09-01 05:25:24,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:24,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128171741] [2023-09-01 05:25:24,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:24,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:24,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:24,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:24,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128171741] [2023-09-01 05:25:24,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128171741] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:24,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:24,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:25:24,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304886063] [2023-09-01 05:25:24,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:24,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:25:24,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:24,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:25:24,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:25:24,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 190 [2023-09-01 05:25:24,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 152 flow. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:24,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 190 [2023-09-01 05:25:24,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:24,758 INFO L130 PetriNetUnfolder]: 712/1056 cut-off events. [2023-09-01 05:25:24,758 INFO L131 PetriNetUnfolder]: For 766/786 co-relation queries the response was YES. [2023-09-01 05:25:24,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3299 conditions, 1056 events. 712/1056 cut-off events. For 766/786 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4255 event pairs, 115 based on Foata normal form. 16/1055 useless extension candidates. Maximal degree in co-relation 3286. Up to 405 conditions per place. [2023-09-01 05:25:24,764 INFO L137 encePairwiseOnDemand]: 181/190 looper letters, 47 selfloop transitions, 13 changer transitions 4/66 dead transitions. [2023-09-01 05:25:24,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 66 transitions, 376 flow [2023-09-01 05:25:24,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:25:24,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:25:24,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 498 transitions. [2023-09-01 05:25:24,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5242105263157895 [2023-09-01 05:25:24,768 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 498 transitions. [2023-09-01 05:25:24,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 498 transitions. [2023-09-01 05:25:24,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:24,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 498 transitions. [2023-09-01 05:25:24,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 99.6) internal successors, (498), 5 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,771 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,771 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 152 flow. Second operand 5 states and 498 transitions. [2023-09-01 05:25:24,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 66 transitions, 376 flow [2023-09-01 05:25:24,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 66 transitions, 358 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-09-01 05:25:24,774 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 176 flow [2023-09-01 05:25:24,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2023-09-01 05:25:24,774 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2023-09-01 05:25:24,774 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 176 flow [2023-09-01 05:25:24,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:24,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:25:24,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:25:24,775 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:25:24,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:24,775 INFO L85 PathProgramCache]: Analyzing trace with hash -49524556, now seen corresponding path program 1 times [2023-09-01 05:25:24,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:24,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132224626] [2023-09-01 05:25:24,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:24,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:24,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:24,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:24,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132224626] [2023-09-01 05:25:24,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132224626] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:24,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:24,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:25:24,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006858301] [2023-09-01 05:25:24,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:24,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:25:24,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:24,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:25:24,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:25:24,898 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 190 [2023-09-01 05:25:24,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:24,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:24,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 190 [2023-09-01 05:25:24,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:25,037 INFO L130 PetriNetUnfolder]: 693/1022 cut-off events. [2023-09-01 05:25:25,037 INFO L131 PetriNetUnfolder]: For 1044/1064 co-relation queries the response was YES. [2023-09-01 05:25:25,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3298 conditions, 1022 events. 693/1022 cut-off events. For 1044/1064 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4132 event pairs, 115 based on Foata normal form. 28/1045 useless extension candidates. Maximal degree in co-relation 3284. Up to 400 conditions per place. [2023-09-01 05:25:25,040 INFO L137 encePairwiseOnDemand]: 181/190 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2023-09-01 05:25:25,041 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 58 transitions, 328 flow [2023-09-01 05:25:25,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:25:25,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:25:25,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 576 transitions. [2023-09-01 05:25:25,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5052631578947369 [2023-09-01 05:25:25,042 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 576 transitions. [2023-09-01 05:25:25,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 576 transitions. [2023-09-01 05:25:25,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:25,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 576 transitions. [2023-09-01 05:25:25,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.0) internal successors, (576), 6 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:25,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:25,046 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:25,047 INFO L175 Difference]: Start difference. First operand has 43 places, 32 transitions, 176 flow. Second operand 6 states and 576 transitions. [2023-09-01 05:25:25,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 58 transitions, 328 flow [2023-09-01 05:25:25,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 58 transitions, 273 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-09-01 05:25:25,055 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2023-09-01 05:25:25,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2023-09-01 05:25:25,057 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -3 predicate places. [2023-09-01 05:25:25,057 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2023-09-01 05:25:25,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:25,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-09-01 05:25:25,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-09-01 05:25:25,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-09-01 05:25:25,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-09-01 05:25:25,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-09-01 05:25:25,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-09-01 05:25:25,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-09-01 05:25:25,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-09-01 05:25:25,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-09-01 05:25:25,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-09-01 05:25:25,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-09-01 05:25:25,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-09-01 05:25:25,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-09-01 05:25:25,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-09-01 05:25:25,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-09-01 05:25:25,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-09-01 05:25:25,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-09-01 05:25:25,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-09-01 05:25:25,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-09-01 05:25:25,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-09-01 05:25:25,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:25:25,066 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-09-01 05:25:25,073 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:25:25,073 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:25:25,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:25:25 BasicIcfg [2023-09-01 05:25:25,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:25:25,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:25:25,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:25:25,077 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:25:25,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:25:20" (3/4) ... [2023-09-01 05:25:25,082 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:25:25,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:25:25,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:25:25,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:25:25,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-09-01 05:25:25,090 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-09-01 05:25:25,090 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 05:25:25,090 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:25:25,091 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:25:25,120 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:25:25,120 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:25:25,121 INFO L158 Benchmark]: Toolchain (without parser) took 5206.52ms. Allocated memory was 73.4MB in the beginning and 201.3MB in the end (delta: 127.9MB). Free memory was 49.2MB in the beginning and 64.8MB in the end (delta: -15.6MB). Peak memory consumption was 113.6MB. Max. memory is 16.1GB. [2023-09-01 05:25:25,121 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 60.8MB. Free memory is still 37.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:25:25,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.80ms. Allocated memory is still 73.4MB. Free memory was 49.0MB in the beginning and 51.2MB in the end (delta: -2.2MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-09-01 05:25:25,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.36ms. Allocated memory is still 73.4MB. Free memory was 51.2MB in the beginning and 49.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:25:25,123 INFO L158 Benchmark]: Boogie Preprocessor took 18.12ms. Allocated memory is still 73.4MB. Free memory was 49.0MB in the beginning and 47.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:25:25,123 INFO L158 Benchmark]: RCFGBuilder took 424.33ms. Allocated memory is still 73.4MB. Free memory was 47.5MB in the beginning and 30.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-09-01 05:25:25,124 INFO L158 Benchmark]: TraceAbstraction took 4279.45ms. Allocated memory was 73.4MB in the beginning and 201.3MB in the end (delta: 127.9MB). Free memory was 30.1MB in the beginning and 68.0MB in the end (delta: -37.9MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. [2023-09-01 05:25:25,124 INFO L158 Benchmark]: Witness Printer took 43.73ms. Allocated memory is still 201.3MB. Free memory was 68.0MB in the beginning and 64.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:25:25,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 60.8MB. Free memory is still 37.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.80ms. Allocated memory is still 73.4MB. Free memory was 49.0MB in the beginning and 51.2MB in the end (delta: -2.2MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.36ms. Allocated memory is still 73.4MB. Free memory was 51.2MB in the beginning and 49.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.12ms. Allocated memory is still 73.4MB. Free memory was 49.0MB in the beginning and 47.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.33ms. Allocated memory is still 73.4MB. Free memory was 47.5MB in the beginning and 30.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4279.45ms. Allocated memory was 73.4MB in the beginning and 201.3MB in the end (delta: 127.9MB). Free memory was 30.1MB in the beginning and 68.0MB in the end (delta: -37.9MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. * Witness Printer took 43.73ms. Allocated memory is still 201.3MB. Free memory was 68.0MB in the beginning and 64.8MB 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: 2.1s, 113 PlacesBefore, 41 PlacesAfterwards, 102 TransitionsBefore, 29 TransitionsAfterwards, 3058 CoEnabledTransitionPairs, 7 FixpointIterations, 20 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 84 TotalNumberOfCompositions, 8189 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3141, independent: 2917, independent conditional: 0, independent unconditional: 2917, dependent: 224, dependent conditional: 0, dependent unconditional: 224, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1624, independent: 1586, independent conditional: 0, independent unconditional: 1586, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3141, independent: 1331, independent conditional: 0, independent unconditional: 1331, dependent: 186, dependent conditional: 0, dependent unconditional: 186, unknown: 1624, unknown conditional: 0, unknown unconditional: 1624] , Statistics on independence cache: Total cache size (in pairs): 127, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 734]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 734]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: 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 9 procedures, 143 locations, 20 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: 4.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 147 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 342 IncrementalHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 0 mSDtfsCounter, 342 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.4s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2023-09-01 05:25:25,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE