./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:30:51,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:30:51,902 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:30:51,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:30:51,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:30:51,927 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:30:51,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:30:51,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:30:51,930 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:30:51,930 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:30:51,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:30:51,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:30:51,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:30:51,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:30:51,931 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:30:51,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:30:51,931 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:30:51,931 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:30:51,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:30:51,932 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:30:51,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:30:51,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:30:51,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:30:51,933 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:30:51,933 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:30:51,933 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:30:51,933 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:30:51,933 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:30:51,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:30:51,933 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:30:51,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:30:51,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:30:51,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:30:51,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:30:51,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:30:51,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:30:51,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:30:51,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:30:51,934 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:30:51,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:30:51,934 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:30:51,934 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:30:51,935 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:30:51,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:30:51,935 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6 [2024-11-07 23:30:52,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:30:52,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:30:52,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:30:52,190 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:30:52,190 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:30:52,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i [2024-11-07 23:30:53,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:30:53,592 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:30:53,592 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i [2024-11-07 23:30:53,601 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b5e077df8/1a98b49aacd241f0bb5b1c91f6a0760c/FLAGdeff5a41f [2024-11-07 23:30:53,893 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b5e077df8/1a98b49aacd241f0bb5b1c91f6a0760c [2024-11-07 23:30:53,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:30:53,898 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:30:53,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:30:53,899 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:30:53,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:30:53,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:30:53" (1/1) ... [2024-11-07 23:30:53,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ab3939d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:53, skipping insertion in model container [2024-11-07 23:30:53,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:30:53" (1/1) ... [2024-11-07 23:30:53,936 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:30:54,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:30:54,213 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:30:54,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:30:54,300 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:30:54,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54 WrapperNode [2024-11-07 23:30:54,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:30:54,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:30:54,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:30:54,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:30:54,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (1/1) ... [2024-11-07 23:30:54,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (1/1) ... [2024-11-07 23:30:54,334 INFO L138 Inliner]: procedures = 263, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47 [2024-11-07 23:30:54,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:30:54,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:30:54,335 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:30:54,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:30:54,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (1/1) ... [2024-11-07 23:30:54,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (1/1) ... [2024-11-07 23:30:54,342 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (1/1) ... [2024-11-07 23:30:54,352 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [5]. The 0 writes are split as follows [0]. [2024-11-07 23:30:54,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (1/1) ... [2024-11-07 23:30:54,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (1/1) ... [2024-11-07 23:30:54,357 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (1/1) ... [2024-11-07 23:30:54,358 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (1/1) ... [2024-11-07 23:30:54,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (1/1) ... [2024-11-07 23:30:54,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (1/1) ... [2024-11-07 23:30:54,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:30:54,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:30:54,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:30:54,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:30:54,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (1/1) ... [2024-11-07 23:30:54,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:30:54,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:30:54,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 23:30:54,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 23:30:54,420 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 23:30:54,420 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 23:30:54,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:30:54,421 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 23:30:54,421 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 23:30:54,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:30:54,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:30:54,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:30:54,422 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 23:30:54,495 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:30:54,496 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:30:54,562 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:30:54,562 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:30:54,612 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:30:54,612 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 23:30:54,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:30:54 BoogieIcfgContainer [2024-11-07 23:30:54,613 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:30:54,614 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:30:54,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:30:54,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:30:54,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:30:53" (1/3) ... [2024-11-07 23:30:54,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5dd858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:30:54, skipping insertion in model container [2024-11-07 23:30:54,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:30:54" (2/3) ... [2024-11-07 23:30:54,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5dd858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:30:54, skipping insertion in model container [2024-11-07 23:30:54,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:30:54" (3/3) ... [2024-11-07 23:30:54,622 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_04-munge_nr.i [2024-11-07 23:30:54,634 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:30:54,638 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-07 23:30:54,638 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:30:54,674 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 23:30:54,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 53 flow [2024-11-07 23:30:54,710 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-11-07 23:30:54,712 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 23:30:54,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 22 events. 0/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-07 23:30:54,717 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 53 flow [2024-11-07 23:30:54,718 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2024-11-07 23:30:54,730 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:30:54,737 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@775a0aef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:30:54,737 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-07 23:30:54,745 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:30:54,745 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-07 23:30:54,745 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:30:54,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:30:54,746 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-07 23:30:54,746 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-07 23:30:54,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:30:54,754 INFO L85 PathProgramCache]: Analyzing trace with hash 275175833, now seen corresponding path program 1 times [2024-11-07 23:30:54,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:30:54,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629029763] [2024-11-07 23:30:54,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:30:54,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:30:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:30:54,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:30:54,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:30:54,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629029763] [2024-11-07 23:30:54,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629029763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:30:54,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:30:54,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:30:54,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632123205] [2024-11-07 23:30:54,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:30:54,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:30:54,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:30:54,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:30:54,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:30:54,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-07 23:30:54,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-07 23:30:54,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:30:54,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-07 23:30:54,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:30:54,968 INFO L124 PetriNetUnfolderBase]: 33/92 cut-off events. [2024-11-07 23:30:54,968 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:30:54,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 92 events. 33/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 292 event pairs, 18 based on Foata normal form. 5/90 useless extension candidates. Maximal degree in co-relation 170. Up to 69 conditions per place. [2024-11-07 23:30:54,970 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 17 selfloop transitions, 3 changer transitions 2/26 dead transitions. [2024-11-07 23:30:54,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 26 transitions, 99 flow [2024-11-07 23:30:54,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:30:54,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:30:54,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2024-11-07 23:30:54,978 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5942028985507246 [2024-11-07 23:30:54,979 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 3 states and 41 transitions. [2024-11-07 23:30:54,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 26 transitions, 99 flow [2024-11-07 23:30:54,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 26 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:30:54,983 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 59 flow [2024-11-07 23:30:54,985 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2024-11-07 23:30:54,987 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 2 predicate places. [2024-11-07 23:30:54,987 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 59 flow [2024-11-07 23:30:54,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-07 23:30:54,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:30:54,987 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:30:54,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:30:54,988 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-07 23:30:54,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:30:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1247447553, now seen corresponding path program 1 times [2024-11-07 23:30:54,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:30:54,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986662493] [2024-11-07 23:30:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:30:54,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:30:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:30:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:30:55,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:30:55,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986662493] [2024-11-07 23:30:55,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986662493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:30:55,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:30:55,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 23:30:55,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844750902] [2024-11-07 23:30:55,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:30:55,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:30:55,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:30:55,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:30:55,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:30:55,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 23 [2024-11-07 23:30:55,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 59 flow. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2024-11-07 23:30:55,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:30:55,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 23 [2024-11-07 23:30:55,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:30:55,353 INFO L124 PetriNetUnfolderBase]: 21/119 cut-off events. [2024-11-07 23:30:55,354 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-07 23:30:55,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 119 events. 21/119 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 594 event pairs, 1 based on Foata normal form. 4/123 useless extension candidates. Maximal degree in co-relation 224. Up to 32 conditions per place. [2024-11-07 23:30:55,356 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 16 selfloop transitions, 18 changer transitions 0/42 dead transitions. [2024-11-07 23:30:55,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 42 transitions, 186 flow [2024-11-07 23:30:55,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 23:30:55,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 23:30:55,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 99 transitions. [2024-11-07 23:30:55,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6149068322981367 [2024-11-07 23:30:55,357 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 59 flow. Second operand 7 states and 99 transitions. [2024-11-07 23:30:55,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 42 transitions, 186 flow [2024-11-07 23:30:55,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 42 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:30:55,358 INFO L231 Difference]: Finished difference. Result has 35 places, 34 transitions, 160 flow [2024-11-07 23:30:55,358 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=160, PETRI_PLACES=35, PETRI_TRANSITIONS=34} [2024-11-07 23:30:55,358 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 11 predicate places. [2024-11-07 23:30:55,359 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 34 transitions, 160 flow [2024-11-07 23:30:55,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2024-11-07 23:30:55,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:30:55,359 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:30:55,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:30:55,359 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-07 23:30:55,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:30:55,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1937954055, now seen corresponding path program 2 times [2024-11-07 23:30:55,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:30:55,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36976489] [2024-11-07 23:30:55,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:30:55,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:30:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:30:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:30:55,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:30:55,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36976489] [2024-11-07 23:30:55,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36976489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:30:55,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:30:55,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 23:30:55,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761770413] [2024-11-07 23:30:55,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:30:55,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:30:55,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:30:55,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:30:55,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:30:55,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 23 [2024-11-07 23:30:55,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2024-11-07 23:30:55,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:30:55,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 23 [2024-11-07 23:30:55,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:30:55,607 INFO L124 PetriNetUnfolderBase]: 16/100 cut-off events. [2024-11-07 23:30:55,607 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-11-07 23:30:55,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 100 events. 16/100 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 446 event pairs, 0 based on Foata normal form. 4/104 useless extension candidates. Maximal degree in co-relation 262. Up to 26 conditions per place. [2024-11-07 23:30:55,611 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 17 selfloop transitions, 20 changer transitions 0/45 dead transitions. [2024-11-07 23:30:55,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 290 flow [2024-11-07 23:30:55,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:30:55,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:30:55,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 87 transitions. [2024-11-07 23:30:55,613 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6304347826086957 [2024-11-07 23:30:55,613 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 160 flow. Second operand 6 states and 87 transitions. [2024-11-07 23:30:55,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 290 flow [2024-11-07 23:30:55,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 284 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-07 23:30:55,618 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 275 flow [2024-11-07 23:30:55,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2024-11-07 23:30:55,619 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 20 predicate places. [2024-11-07 23:30:55,619 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 275 flow [2024-11-07 23:30:55,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2024-11-07 23:30:55,619 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:30:55,619 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:30:55,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:30:55,619 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-07 23:30:55,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:30:55,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1180689778, now seen corresponding path program 1 times [2024-11-07 23:30:55,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:30:55,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915443253] [2024-11-07 23:30:55,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:30:55,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:30:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:30:55,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:30:55,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:30:55,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915443253] [2024-11-07 23:30:55,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915443253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:30:55,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:30:55,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 23:30:55,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726567778] [2024-11-07 23:30:55,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:30:55,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:30:55,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:30:55,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:30:55,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:30:55,747 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 23 [2024-11-07 23:30:55,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 275 flow. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2024-11-07 23:30:55,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:30:55,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 23 [2024-11-07 23:30:55,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:30:55,884 INFO L124 PetriNetUnfolderBase]: 14/86 cut-off events. [2024-11-07 23:30:55,884 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-07 23:30:55,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 86 events. 14/86 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 336 event pairs, 0 based on Foata normal form. 2/88 useless extension candidates. Maximal degree in co-relation 281. Up to 20 conditions per place. [2024-11-07 23:30:55,888 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 13 selfloop transitions, 22 changer transitions 0/43 dead transitions. [2024-11-07 23:30:55,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 43 transitions, 358 flow [2024-11-07 23:30:55,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 23:30:55,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 23:30:55,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 87 transitions. [2024-11-07 23:30:55,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5403726708074534 [2024-11-07 23:30:55,894 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 275 flow. Second operand 7 states and 87 transitions. [2024-11-07 23:30:55,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 43 transitions, 358 flow [2024-11-07 23:30:55,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 324 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-07 23:30:55,897 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 299 flow [2024-11-07 23:30:55,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=299, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2024-11-07 23:30:55,899 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 24 predicate places. [2024-11-07 23:30:55,899 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 299 flow [2024-11-07 23:30:55,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2024-11-07 23:30:55,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:30:55,902 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:30:55,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:30:55,902 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-07 23:30:55,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:30:55,903 INFO L85 PathProgramCache]: Analyzing trace with hash 845137821, now seen corresponding path program 1 times [2024-11-07 23:30:55,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:30:55,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769194079] [2024-11-07 23:30:55,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:30:55,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:30:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:30:55,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:30:55,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:30:55,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769194079] [2024-11-07 23:30:55,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769194079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:30:55,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:30:55,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:30:55,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428500213] [2024-11-07 23:30:55,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:30:55,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:30:55,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:30:55,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:30:55,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:30:55,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-07 23:30:55,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 299 flow. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-07 23:30:55,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:30:55,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-07 23:30:55,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:30:55,991 INFO L124 PetriNetUnfolderBase]: 18/84 cut-off events. [2024-11-07 23:30:55,991 INFO L125 PetriNetUnfolderBase]: For 171/171 co-relation queries the response was YES. [2024-11-07 23:30:55,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 84 events. 18/84 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 289 event pairs, 0 based on Foata normal form. 6/89 useless extension candidates. Maximal degree in co-relation 312. Up to 46 conditions per place. [2024-11-07 23:30:55,991 INFO L140 encePairwiseOnDemand]: 18/23 looper letters, 44 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2024-11-07 23:30:55,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 51 transitions, 503 flow [2024-11-07 23:30:55,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:30:55,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:30:55,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2024-11-07 23:30:55,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43478260869565216 [2024-11-07 23:30:55,992 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 299 flow. Second operand 4 states and 40 transitions. [2024-11-07 23:30:55,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 51 transitions, 503 flow [2024-11-07 23:30:55,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 51 transitions, 474 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-07 23:30:55,995 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 277 flow [2024-11-07 23:30:55,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=277, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2024-11-07 23:30:55,995 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 23 predicate places. [2024-11-07 23:30:55,995 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 277 flow [2024-11-07 23:30:55,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-07 23:30:55,996 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:30:55,996 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:30:55,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:30:55,996 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-07 23:30:55,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:30:55,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1657685929, now seen corresponding path program 1 times [2024-11-07 23:30:55,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:30:55,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867756768] [2024-11-07 23:30:55,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:30:55,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:30:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:30:56,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:30:56,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:30:56,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867756768] [2024-11-07 23:30:56,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867756768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:30:56,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:30:56,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:30:56,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134831593] [2024-11-07 23:30:56,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:30:56,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:30:56,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:30:56,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:30:56,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:30:56,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-07 23:30:56,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-07 23:30:56,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:30:56,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-07 23:30:56,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:30:56,057 INFO L124 PetriNetUnfolderBase]: 14/72 cut-off events. [2024-11-07 23:30:56,057 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-07 23:30:56,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 72 events. 14/72 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 242 event pairs, 0 based on Foata normal form. 6/76 useless extension candidates. Maximal degree in co-relation 266. Up to 36 conditions per place. [2024-11-07 23:30:56,057 INFO L140 encePairwiseOnDemand]: 18/23 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2024-11-07 23:30:56,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 468 flow [2024-11-07 23:30:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:30:56,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:30:56,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2024-11-07 23:30:56,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41304347826086957 [2024-11-07 23:30:56,058 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 277 flow. Second operand 4 states and 38 transitions. [2024-11-07 23:30:56,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 468 flow [2024-11-07 23:30:56,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 49 transitions, 461 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:30:56,060 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2024-11-07 23:30:56,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2024-11-07 23:30:56,060 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 21 predicate places. [2024-11-07 23:30:56,060 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2024-11-07 23:30:56,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-07 23:30:56,062 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2024-11-07 23:30:56,062 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2024-11-07 23:30:56,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-07 23:30:56,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2024-11-07 23:30:56,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2024-11-07 23:30:56,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2024-11-07 23:30:56,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2024-11-07 23:30:56,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 23:30:56,063 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-07 23:30:56,070 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 23:30:56,070 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 23:30:56,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:30:56 BasicIcfg [2024-11-07 23:30:56,075 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 23:30:56,076 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:30:56,076 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:30:56,076 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:30:56,079 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:30:54" (3/4) ... [2024-11-07 23:30:56,080 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 23:30:56,082 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-07 23:30:56,088 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-07 23:30:56,088 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-07 23:30:56,088 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-07 23:30:56,142 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 23:30:56,142 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 23:30:56,142 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:30:56,143 INFO L158 Benchmark]: Toolchain (without parser) took 2244.23ms. Allocated memory is still 109.1MB. Free memory was 84.2MB in the beginning and 35.9MB in the end (delta: 48.3MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2024-11-07 23:30:56,143 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:30:56,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.38ms. Allocated memory is still 109.1MB. Free memory was 84.1MB in the beginning and 57.3MB in the end (delta: 26.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 23:30:56,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.88ms. Allocated memory is still 109.1MB. Free memory was 57.3MB in the beginning and 55.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:30:56,144 INFO L158 Benchmark]: Boogie Preprocessor took 27.59ms. Allocated memory is still 109.1MB. Free memory was 55.5MB in the beginning and 54.0MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:30:56,144 INFO L158 Benchmark]: RCFGBuilder took 249.53ms. Allocated memory is still 109.1MB. Free memory was 54.0MB in the beginning and 82.4MB in the end (delta: -28.5MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-11-07 23:30:56,144 INFO L158 Benchmark]: TraceAbstraction took 1461.15ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 40.1MB in the end (delta: 41.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-07 23:30:56,144 INFO L158 Benchmark]: Witness Printer took 66.48ms. Allocated memory is still 109.1MB. Free memory was 39.3MB in the beginning and 35.9MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:30:56,145 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.38ms. Allocated memory is still 109.1MB. Free memory was 84.1MB in the beginning and 57.3MB in the end (delta: 26.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.88ms. Allocated memory is still 109.1MB. Free memory was 57.3MB in the beginning and 55.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.59ms. Allocated memory is still 109.1MB. Free memory was 55.5MB in the beginning and 54.0MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 249.53ms. Allocated memory is still 109.1MB. Free memory was 54.0MB in the beginning and 82.4MB in the end (delta: -28.5MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1461.15ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 40.1MB in the end (delta: 41.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 66.48ms. Allocated memory is still 109.1MB. Free memory was 39.3MB in the beginning and 35.9MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 921]: 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 3 procedures, 35 locations, 7 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: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 322 IncrementalHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 0 mSDtfsCounter, 322 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred in iteration=4, InterpolantAutomatonStates: 31, 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, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 23:30:56,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE