./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/safe022_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cfc87f4ca115dcc389a4b05cbc106fd8bac1a9e17a58d50108d65580024dc2f5 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 23:21:11,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 23:21:11,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 23:21:11,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 23:21:11,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 23:21:11,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 23:21:11,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 23:21:11,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 23:21:11,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 23:21:11,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 23:21:11,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 23:21:11,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 23:21:11,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 23:21:11,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 23:21:11,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 23:21:11,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 23:21:11,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 23:21:11,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 23:21:11,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 23:21:11,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 23:21:11,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 23:21:11,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 23:21:11,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 23:21:11,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 23:21:11,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 23:21:11,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 23:21:11,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 23:21:11,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 23:21:11,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 23:21:11,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 23:21:11,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 23:21:11,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 23:21:11,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 23:21:11,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 23:21:11,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 23:21:11,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 23:21:11,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 23:21:11,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 23:21:11,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 23:21:11,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 23:21:11,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 23:21:11,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 23:21:11,202 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 23:21:11,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 23:21:11,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 23:21:11,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 23:21:11,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 23:21:11,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 23:21:11,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 23:21:11,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 23:21:11,206 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 23:21:11,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 23:21:11,206 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 23:21:11,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 23:21:11,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 23:21:11,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 23:21:11,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 23:21:11,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 23:21:11,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 23:21:11,208 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 23:21:11,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 23:21:11,208 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 23:21:11,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 23:21:11,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 23:21:11,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 23:21:11,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 23:21:11,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:21:11,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 23:21:11,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 23:21:11,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 23:21:11,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 23:21:11,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 23:21:11,210 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 23:21:11,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 23:21:11,210 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 23:21:11,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 23:21:11,210 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 23:21:11,211 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfc87f4ca115dcc389a4b05cbc106fd8bac1a9e17a58d50108d65580024dc2f5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 23:21:11,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 23:21:11,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 23:21:11,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 23:21:11,478 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 23:21:11,479 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 23:21:11,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2023-08-30 23:21:12,530 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 23:21:12,731 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 23:21:12,732 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2023-08-30 23:21:12,742 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98e8e6b3/6b8da97072244a89b3a5a9533a1d811c/FLAG8bc8f5165 [2023-08-30 23:21:12,753 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98e8e6b3/6b8da97072244a89b3a5a9533a1d811c [2023-08-30 23:21:12,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 23:21:12,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 23:21:12,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 23:21:12,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 23:21:12,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 23:21:12,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:21:12" (1/1) ... [2023-08-30 23:21:12,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cc73a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:12, skipping insertion in model container [2023-08-30 23:21:12,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:21:12" (1/1) ... [2023-08-30 23:21:12,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 23:21:12,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 23:21:12,880 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/safe022_tso.i[945,958] [2023-08-30 23:21:13,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:21:13,027 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 23:21:13,036 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/safe022_tso.i[945,958] [2023-08-30 23:21:13,063 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:21:13,088 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:21:13,088 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:21:13,092 INFO L208 MainTranslator]: Completed translation [2023-08-30 23:21:13,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13 WrapperNode [2023-08-30 23:21:13,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 23:21:13,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 23:21:13,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 23:21:13,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 23:21:13,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13" (1/1) ... [2023-08-30 23:21:13,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13" (1/1) ... [2023-08-30 23:21:13,169 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-08-30 23:21:13,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 23:21:13,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 23:21:13,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 23:21:13,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 23:21:13,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13" (1/1) ... [2023-08-30 23:21:13,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13" (1/1) ... [2023-08-30 23:21:13,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13" (1/1) ... [2023-08-30 23:21:13,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13" (1/1) ... [2023-08-30 23:21:13,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13" (1/1) ... [2023-08-30 23:21:13,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13" (1/1) ... [2023-08-30 23:21:13,182 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13" (1/1) ... [2023-08-30 23:21:13,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13" (1/1) ... [2023-08-30 23:21:13,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 23:21:13,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 23:21:13,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 23:21:13,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 23:21:13,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13" (1/1) ... [2023-08-30 23:21:13,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:21:13,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:21:13,205 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 23:21:13,213 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 23:21:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 23:21:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 23:21:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 23:21:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 23:21:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 23:21:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 23:21:13,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 23:21:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 23:21:13,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 23:21:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 23:21:13,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 23:21:13,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 23:21:13,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 23:21:13,236 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 23:21:13,334 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 23:21:13,335 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 23:21:13,430 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 23:21:13,434 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 23:21:13,434 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 23:21:13,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:21:13 BoogieIcfgContainer [2023-08-30 23:21:13,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 23:21:13,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 23:21:13,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 23:21:13,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 23:21:13,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 11:21:12" (1/3) ... [2023-08-30 23:21:13,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3590cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:21:13, skipping insertion in model container [2023-08-30 23:21:13,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:21:13" (2/3) ... [2023-08-30 23:21:13,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3590cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:21:13, skipping insertion in model container [2023-08-30 23:21:13,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:21:13" (3/3) ... [2023-08-30 23:21:13,444 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_tso.i [2023-08-30 23:21:13,449 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 23:21:13,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 23:21:13,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 23:21:13,456 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 23:21:13,492 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 23:21:13,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 68 transitions, 146 flow [2023-08-30 23:21:13,549 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2023-08-30 23:21:13,549 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 23:21:13,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-30 23:21:13,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 68 transitions, 146 flow [2023-08-30 23:21:13,554 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 56 transitions, 118 flow [2023-08-30 23:21:13,557 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 23:21:13,569 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 56 transitions, 118 flow [2023-08-30 23:21:13,571 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 56 transitions, 118 flow [2023-08-30 23:21:13,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 56 transitions, 118 flow [2023-08-30 23:21:13,587 INFO L130 PetriNetUnfolder]: 1/56 cut-off events. [2023-08-30 23:21:13,587 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 23:21:13,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 56 events. 1/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-08-30 23:21:13,588 INFO L119 LiptonReduction]: Number of co-enabled transitions 540 [2023-08-30 23:21:15,009 INFO L134 LiptonReduction]: Checked pairs total: 1032 [2023-08-30 23:21:15,009 INFO L136 LiptonReduction]: Total number of compositions: 48 [2023-08-30 23:21:15,018 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 23:21:15,024 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;@1037ad3c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 23:21:15,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-30 23:21:15,031 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-30 23:21:15,031 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 23:21:15,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:21:15,032 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 23:21:15,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 23:21:15,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:21:15,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1625176260, now seen corresponding path program 1 times [2023-08-30 23:21:15,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:21:15,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066050237] [2023-08-30 23:21:15,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:21:15,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:21:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:21:15,485 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 23:21:15,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:21:15,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066050237] [2023-08-30 23:21:15,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066050237] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:21:15,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:21:15,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 23:21:15,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5022598] [2023-08-30 23:21:15,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:21:15,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 23:21:15,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:21:15,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 23:21:15,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 23:21:15,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 116 [2023-08-30 23:21:15,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 23:21:15,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:21:15,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 116 [2023-08-30 23:21:15,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:21:15,566 INFO L130 PetriNetUnfolder]: 39/80 cut-off events. [2023-08-30 23:21:15,566 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 23:21:15,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 80 events. 39/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 217 event pairs, 12 based on Foata normal form. 3/82 useless extension candidates. Maximal degree in co-relation 161. Up to 61 conditions per place. [2023-08-30 23:21:15,568 INFO L137 encePairwiseOnDemand]: 113/116 looper letters, 12 selfloop transitions, 2 changer transitions 0/15 dead transitions. [2023-08-30 23:21:15,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 15 transitions, 64 flow [2023-08-30 23:21:15,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 23:21:15,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 23:21:15,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2023-08-30 23:21:15,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2023-08-30 23:21:15,579 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 192 transitions. [2023-08-30 23:21:15,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 192 transitions. [2023-08-30 23:21:15,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:21:15,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 192 transitions. [2023-08-30 23:21:15,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 23:21:15,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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 23:21:15,591 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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 23:21:15,592 INFO L175 Difference]: Start difference. First operand has 19 places, 12 transitions, 30 flow. Second operand 3 states and 192 transitions. [2023-08-30 23:21:15,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 15 transitions, 64 flow [2023-08-30 23:21:15,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 62 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 23:21:15,598 INFO L231 Difference]: Finished difference. Result has 20 places, 12 transitions, 36 flow [2023-08-30 23:21:15,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=20, PETRI_TRANSITIONS=12} [2023-08-30 23:21:15,603 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 1 predicate places. [2023-08-30 23:21:15,604 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 36 flow [2023-08-30 23:21:15,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 23:21:15,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:21:15,604 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:21:15,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 23:21:15,606 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 23:21:15,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:21:15,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1159142612, now seen corresponding path program 1 times [2023-08-30 23:21:15,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:21:15,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254758806] [2023-08-30 23:21:15,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:21:15,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:21:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:21:15,719 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 23:21:15,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:21:15,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254758806] [2023-08-30 23:21:15,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254758806] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:21:15,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:21:15,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 23:21:15,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022245921] [2023-08-30 23:21:15,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:21:15,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 23:21:15,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:21:15,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 23:21:15,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 23:21:15,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 116 [2023-08-30 23:21:15,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 36 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 23:21:15,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:21:15,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 116 [2023-08-30 23:21:15,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:21:15,772 INFO L130 PetriNetUnfolder]: 56/111 cut-off events. [2023-08-30 23:21:15,772 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-30 23:21:15,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 111 events. 56/111 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 306 event pairs, 11 based on Foata normal form. 4/115 useless extension candidates. Maximal degree in co-relation 252. Up to 48 conditions per place. [2023-08-30 23:21:15,774 INFO L137 encePairwiseOnDemand]: 111/116 looper letters, 19 selfloop transitions, 6 changer transitions 0/25 dead transitions. [2023-08-30 23:21:15,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 25 transitions, 119 flow [2023-08-30 23:21:15,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 23:21:15,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 23:21:15,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 312 transitions. [2023-08-30 23:21:15,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5379310344827586 [2023-08-30 23:21:15,776 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 312 transitions. [2023-08-30 23:21:15,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 312 transitions. [2023-08-30 23:21:15,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:21:15,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 312 transitions. [2023-08-30 23:21:15,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 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 23:21:15,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 23:21:15,782 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 23:21:15,782 INFO L175 Difference]: Start difference. First operand has 20 places, 12 transitions, 36 flow. Second operand 5 states and 312 transitions. [2023-08-30 23:21:15,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 25 transitions, 119 flow [2023-08-30 23:21:15,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 25 transitions, 113 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 23:21:15,783 INFO L231 Difference]: Finished difference. Result has 24 places, 16 transitions, 67 flow [2023-08-30 23:21:15,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=67, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2023-08-30 23:21:15,784 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2023-08-30 23:21:15,785 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 67 flow [2023-08-30 23:21:15,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 23:21:15,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:21:15,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:21:15,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 23:21:15,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 23:21:15,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:21:15,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1573681166, now seen corresponding path program 1 times [2023-08-30 23:21:15,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:21:15,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914024335] [2023-08-30 23:21:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:21:15,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:21:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:21:15,907 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 23:21:15,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:21:15,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914024335] [2023-08-30 23:21:15,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914024335] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:21:15,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:21:15,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 23:21:15,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230702620] [2023-08-30 23:21:15,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:21:15,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 23:21:15,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:21:15,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 23:21:15,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 23:21:15,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 116 [2023-08-30 23:21:15,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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 23:21:15,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:21:15,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 116 [2023-08-30 23:21:15,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:21:15,953 INFO L130 PetriNetUnfolder]: 39/94 cut-off events. [2023-08-30 23:21:15,953 INFO L131 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2023-08-30 23:21:15,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 94 events. 39/94 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 305 event pairs, 15 based on Foata normal form. 7/99 useless extension candidates. Maximal degree in co-relation 246. Up to 32 conditions per place. [2023-08-30 23:21:15,954 INFO L137 encePairwiseOnDemand]: 112/116 looper letters, 13 selfloop transitions, 3 changer transitions 6/23 dead transitions. [2023-08-30 23:21:15,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 23 transitions, 123 flow [2023-08-30 23:21:15,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 23:21:15,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 23:21:15,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 257 transitions. [2023-08-30 23:21:15,955 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5538793103448276 [2023-08-30 23:21:15,955 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 257 transitions. [2023-08-30 23:21:15,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 257 transitions. [2023-08-30 23:21:15,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:21:15,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 257 transitions. [2023-08-30 23:21:15,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 23:21:15,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 23:21:15,957 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 23:21:15,957 INFO L175 Difference]: Start difference. First operand has 24 places, 16 transitions, 67 flow. Second operand 4 states and 257 transitions. [2023-08-30 23:21:15,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 23 transitions, 123 flow [2023-08-30 23:21:15,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 23 transitions, 123 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 23:21:15,958 INFO L231 Difference]: Finished difference. Result has 29 places, 12 transitions, 62 flow [2023-08-30 23:21:15,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=29, PETRI_TRANSITIONS=12} [2023-08-30 23:21:15,959 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 10 predicate places. [2023-08-30 23:21:15,959 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 12 transitions, 62 flow [2023-08-30 23:21:15,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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 23:21:15,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:21:15,959 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:21:15,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 23:21:15,960 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 23:21:15,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:21:15,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1374749480, now seen corresponding path program 1 times [2023-08-30 23:21:15,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:21:15,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504398047] [2023-08-30 23:21:15,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:21:15,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:21:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:21:16,108 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 23:21:16,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:21:16,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504398047] [2023-08-30 23:21:16,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504398047] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:21:16,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:21:16,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 23:21:16,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840757181] [2023-08-30 23:21:16,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:21:16,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 23:21:16,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:21:16,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 23:21:16,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 23:21:16,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 116 [2023-08-30 23:21:16,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 12 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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 23:21:16,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:21:16,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 116 [2023-08-30 23:21:16,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:21:16,146 INFO L130 PetriNetUnfolder]: 15/46 cut-off events. [2023-08-30 23:21:16,146 INFO L131 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2023-08-30 23:21:16,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 46 events. 15/46 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 110 event pairs, 4 based on Foata normal form. 4/49 useless extension candidates. Maximal degree in co-relation 137. Up to 16 conditions per place. [2023-08-30 23:21:16,147 INFO L137 encePairwiseOnDemand]: 111/116 looper letters, 14 selfloop transitions, 4 changer transitions 1/21 dead transitions. [2023-08-30 23:21:16,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 21 transitions, 134 flow [2023-08-30 23:21:16,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 23:21:16,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 23:21:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2023-08-30 23:21:16,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5452586206896551 [2023-08-30 23:21:16,149 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 253 transitions. [2023-08-30 23:21:16,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 253 transitions. [2023-08-30 23:21:16,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:21:16,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 253 transitions. [2023-08-30 23:21:16,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 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 23:21:16,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 23:21:16,155 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 23:21:16,155 INFO L175 Difference]: Start difference. First operand has 29 places, 12 transitions, 62 flow. Second operand 4 states and 253 transitions. [2023-08-30 23:21:16,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 21 transitions, 134 flow [2023-08-30 23:21:16,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 21 transitions, 96 flow, removed 5 selfloop flow, removed 9 redundant places. [2023-08-30 23:21:16,156 INFO L231 Difference]: Finished difference. Result has 24 places, 14 transitions, 60 flow [2023-08-30 23:21:16,157 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=24, PETRI_TRANSITIONS=14} [2023-08-30 23:21:16,157 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2023-08-30 23:21:16,158 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 14 transitions, 60 flow [2023-08-30 23:21:16,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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 23:21:16,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:21:16,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:21:16,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 23:21:16,159 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 23:21:16,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:21:16,159 INFO L85 PathProgramCache]: Analyzing trace with hash 296235904, now seen corresponding path program 1 times [2023-08-30 23:21:16,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:21:16,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162440902] [2023-08-30 23:21:16,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:21:16,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:21:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:21:16,306 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 23:21:16,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:21:16,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162440902] [2023-08-30 23:21:16,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162440902] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:21:16,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:21:16,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 23:21:16,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215036947] [2023-08-30 23:21:16,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:21:16,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 23:21:16,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:21:16,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 23:21:16,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 23:21:16,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 116 [2023-08-30 23:21:16,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 60 flow. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 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 23:21:16,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:21:16,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 116 [2023-08-30 23:21:16,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:21:16,364 INFO L130 PetriNetUnfolder]: 8/30 cut-off events. [2023-08-30 23:21:16,364 INFO L131 PetriNetUnfolder]: For 27/29 co-relation queries the response was YES. [2023-08-30 23:21:16,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 30 events. 8/30 cut-off events. For 27/29 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 2 based on Foata normal form. 5/34 useless extension candidates. Maximal degree in co-relation 89. Up to 12 conditions per place. [2023-08-30 23:21:16,365 INFO L137 encePairwiseOnDemand]: 111/116 looper letters, 9 selfloop transitions, 6 changer transitions 1/18 dead transitions. [2023-08-30 23:21:16,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 107 flow [2023-08-30 23:21:16,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 23:21:16,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 23:21:16,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 308 transitions. [2023-08-30 23:21:16,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5310344827586206 [2023-08-30 23:21:16,367 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 308 transitions. [2023-08-30 23:21:16,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 308 transitions. [2023-08-30 23:21:16,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:21:16,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 308 transitions. [2023-08-30 23:21:16,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 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 23:21:16,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 23:21:16,370 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 23:21:16,370 INFO L175 Difference]: Start difference. First operand has 24 places, 14 transitions, 60 flow. Second operand 5 states and 308 transitions. [2023-08-30 23:21:16,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 107 flow [2023-08-30 23:21:16,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 98 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-30 23:21:16,371 INFO L231 Difference]: Finished difference. Result has 28 places, 14 transitions, 76 flow [2023-08-30 23:21:16,372 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=76, PETRI_PLACES=28, PETRI_TRANSITIONS=14} [2023-08-30 23:21:16,372 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 9 predicate places. [2023-08-30 23:21:16,372 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 14 transitions, 76 flow [2023-08-30 23:21:16,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 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 23:21:16,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:21:16,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:21:16,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 23:21:16,373 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 23:21:16,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:21:16,373 INFO L85 PathProgramCache]: Analyzing trace with hash -640327969, now seen corresponding path program 1 times [2023-08-30 23:21:16,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:21:16,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453896482] [2023-08-30 23:21:16,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:21:16,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:21:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:21:16,487 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 23:21:16,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:21:16,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453896482] [2023-08-30 23:21:16,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453896482] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:21:16,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:21:16,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 23:21:16,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646059248] [2023-08-30 23:21:16,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:21:16,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 23:21:16,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:21:16,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 23:21:16,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 23:21:16,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 116 [2023-08-30 23:21:16,498 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 14 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 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 23:21:16,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:21:16,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 116 [2023-08-30 23:21:16,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:21:16,526 INFO L130 PetriNetUnfolder]: 7/27 cut-off events. [2023-08-30 23:21:16,526 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2023-08-30 23:21:16,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 27 events. 7/27 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 1 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 84. Up to 13 conditions per place. [2023-08-30 23:21:16,528 INFO L137 encePairwiseOnDemand]: 113/116 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2023-08-30 23:21:16,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 16 transitions, 110 flow [2023-08-30 23:21:16,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 23:21:16,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 23:21:16,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 250 transitions. [2023-08-30 23:21:16,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5387931034482759 [2023-08-30 23:21:16,529 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 250 transitions. [2023-08-30 23:21:16,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 250 transitions. [2023-08-30 23:21:16,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:21:16,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 250 transitions. [2023-08-30 23:21:16,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 62.5) internal successors, (250), 4 states have internal predecessors, (250), 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 23:21:16,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 23:21:16,530 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 23:21:16,530 INFO L175 Difference]: Start difference. First operand has 28 places, 14 transitions, 76 flow. Second operand 4 states and 250 transitions. [2023-08-30 23:21:16,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 16 transitions, 110 flow [2023-08-30 23:21:16,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 79 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-08-30 23:21:16,531 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2023-08-30 23:21:16,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2023-08-30 23:21:16,533 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 3 predicate places. [2023-08-30 23:21:16,533 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2023-08-30 23:21:16,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 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 23:21:16,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-30 23:21:16,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-30 23:21:16,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-30 23:21:16,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 23:21:16,539 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-30 23:21:16,541 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 23:21:16,541 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 23:21:16,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 11:21:16 BasicIcfg [2023-08-30 23:21:16,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 23:21:16,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 23:21:16,545 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 23:21:16,545 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 23:21:16,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:21:13" (3/4) ... [2023-08-30 23:21:16,547 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 23:21:16,551 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 23:21:16,551 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 23:21:16,554 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-30 23:21:16,554 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 23:21:16,554 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 23:21:16,554 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 23:21:16,582 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 23:21:16,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 23:21:16,582 INFO L158 Benchmark]: Toolchain (without parser) took 3826.73ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 58.1MB in the beginning and 90.8MB in the end (delta: -32.7MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2023-08-30 23:21:16,582 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 23:21:16,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.55ms. Allocated memory is still 81.8MB. Free memory was 58.1MB in the beginning and 38.2MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-30 23:21:16,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.58ms. Allocated memory is still 81.8MB. Free memory was 38.2MB in the beginning and 61.8MB in the end (delta: -23.6MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2023-08-30 23:21:16,583 INFO L158 Benchmark]: Boogie Preprocessor took 14.39ms. Allocated memory is still 81.8MB. Free memory was 61.8MB in the beginning and 60.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 23:21:16,583 INFO L158 Benchmark]: RCFGBuilder took 253.34ms. Allocated memory is still 81.8MB. Free memory was 60.4MB in the beginning and 47.9MB in the end (delta: 12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 23:21:16,584 INFO L158 Benchmark]: TraceAbstraction took 3105.05ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 47.1MB in the beginning and 93.9MB in the end (delta: -46.8MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2023-08-30 23:21:16,584 INFO L158 Benchmark]: Witness Printer took 37.84ms. Allocated memory is still 119.5MB. Free memory was 93.9MB in the beginning and 90.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 23:21:16,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.55ms. Allocated memory is still 81.8MB. Free memory was 58.1MB in the beginning and 38.2MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.58ms. Allocated memory is still 81.8MB. Free memory was 38.2MB in the beginning and 61.8MB in the end (delta: -23.6MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.39ms. Allocated memory is still 81.8MB. Free memory was 61.8MB in the beginning and 60.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 253.34ms. Allocated memory is still 81.8MB. Free memory was 60.4MB in the beginning and 47.9MB in the end (delta: 12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3105.05ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 47.1MB in the beginning and 93.9MB in the end (delta: -46.8MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. * Witness Printer took 37.84ms. Allocated memory is still 119.5MB. Free memory was 93.9MB in the beginning and 90.8MB 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: 1.4s, 62 PlacesBefore, 19 PlacesAfterwards, 56 TransitionsBefore, 12 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 48 TotalNumberOfCompositions, 1032 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 623, independent: 558, independent conditional: 0, independent unconditional: 558, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 298, independent: 283, independent conditional: 0, independent unconditional: 283, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 623, independent: 275, independent conditional: 0, independent unconditional: 275, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 298, unknown conditional: 0, unknown unconditional: 298] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 83 locations, 3 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: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 11 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=5, InterpolantAutomatonStates: 25, 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, 0.8s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 23:21:16,598 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