./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_02-simple_racefree.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/28-race_reach_02-simple_racefree.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', 'b3e7d0a2f10d1449a9a354d4032bafdd0ae7a7fd76aceb835acbee3134ec74e4'] 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/28-race_reach_02-simple_racefree.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 b3e7d0a2f10d1449a9a354d4032bafdd0ae7a7fd76aceb835acbee3134ec74e4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:32:22,721 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:32:22,808 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:32:22,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:32:22,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:32:22,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:32:22,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:32:22,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:32:22,837 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:32:22,837 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:32:22,837 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:32:22,838 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:32:22,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:32:22,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:32:22,838 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:32:22,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:32:22,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:32:22,839 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:32:22,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:32:22,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:32:22,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:32:22,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:32:22,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:32:22,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:32:22,840 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:32:22,841 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:32:22,841 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:32:22,841 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:32:22,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:32:22,841 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:32:22,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:32:22,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:32:22,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:32:22,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:32:22,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:32:22,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:32:22,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:32:22,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:32:22,843 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:32:22,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:32:22,843 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:32:22,843 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:32:22,843 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:32:22,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:32:22,844 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 -> b3e7d0a2f10d1449a9a354d4032bafdd0ae7a7fd76aceb835acbee3134ec74e4 [2024-11-07 23:32:23,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:32:23,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:32:23,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:32:23,128 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:32:23,129 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:32:23,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_02-simple_racefree.i [2024-11-07 23:32:24,381 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:32:24,621 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:32:24,622 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_02-simple_racefree.i [2024-11-07 23:32:24,636 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2972e5b89/8617f75d526a47f3b6af935e52d6773b/FLAGa9b5f1dbf [2024-11-07 23:32:24,650 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2972e5b89/8617f75d526a47f3b6af935e52d6773b [2024-11-07 23:32:24,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:32:24,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:32:24,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:32:24,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:32:24,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:32:24,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:32:24" (1/1) ... [2024-11-07 23:32:24,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b0bf1e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:24, skipping insertion in model container [2024-11-07 23:32:24,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:32:24" (1/1) ... [2024-11-07 23:32:24,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:32:24,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:32:24,956 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:32:24,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:32:25,041 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:32:25,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25 WrapperNode [2024-11-07 23:32:25,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:32:25,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:32:25,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:32:25,045 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:32:25,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (1/1) ... [2024-11-07 23:32:25,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (1/1) ... [2024-11-07 23:32:25,085 INFO L138 Inliner]: procedures = 171, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 137 [2024-11-07 23:32:25,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:32:25,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:32:25,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:32:25,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:32:25,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (1/1) ... [2024-11-07 23:32:25,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (1/1) ... [2024-11-07 23:32:25,100 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (1/1) ... [2024-11-07 23:32:25,122 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-11-07 23:32:25,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (1/1) ... [2024-11-07 23:32:25,122 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (1/1) ... [2024-11-07 23:32:25,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (1/1) ... [2024-11-07 23:32:25,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (1/1) ... [2024-11-07 23:32:25,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (1/1) ... [2024-11-07 23:32:25,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (1/1) ... [2024-11-07 23:32:25,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:32:25,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:32:25,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:32:25,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:32:25,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (1/1) ... [2024-11-07 23:32:25,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:32:25,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:32:25,188 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 23:32:25,191 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 23:32:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:32:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:32:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 23:32:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 23:32:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:32:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:32:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 23:32:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 23:32:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 23:32:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:32:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 23:32:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 23:32:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 23:32:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 23:32:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:32:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:32:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 23:32:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 23:32:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 23:32:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:32:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:32:25,219 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 23:32:25,371 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:32:25,373 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:32:25,632 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:32:25,633 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:32:26,034 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:32:26,034 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-07 23:32:26,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:32:26 BoogieIcfgContainer [2024-11-07 23:32:26,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:32:26,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:32:26,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:32:26,041 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:32:26,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:32:24" (1/3) ... [2024-11-07 23:32:26,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f82007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:32:26, skipping insertion in model container [2024-11-07 23:32:26,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:25" (2/3) ... [2024-11-07 23:32:26,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f82007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:32:26, skipping insertion in model container [2024-11-07 23:32:26,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:32:26" (3/3) ... [2024-11-07 23:32:26,044 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_02-simple_racefree.i [2024-11-07 23:32:26,058 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:32:26,059 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-07 23:32:26,059 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:32:26,105 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 23:32:26,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 60 transitions, 127 flow [2024-11-07 23:32:26,188 INFO L124 PetriNetUnfolderBase]: 11/75 cut-off events. [2024-11-07 23:32:26,192 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 23:32:26,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 75 events. 11/75 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 210 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 51. Up to 4 conditions per place. [2024-11-07 23:32:26,196 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 60 transitions, 127 flow [2024-11-07 23:32:26,200 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 59 transitions, 125 flow [2024-11-07 23:32:26,210 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:32:26,224 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;@3ff8be0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:32:26,225 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-07 23:32:26,231 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:32:26,231 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-07 23:32:26,231 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:32:26,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:26,232 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:32:26,233 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:32:26,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:26,238 INFO L85 PathProgramCache]: Analyzing trace with hash 434807065, now seen corresponding path program 1 times [2024-11-07 23:32:26,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:26,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893051844] [2024-11-07 23:32:26,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:26,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:26,675 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 23:32:26,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:26,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893051844] [2024-11-07 23:32:26,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893051844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:26,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:26,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:32:26,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372216648] [2024-11-07 23:32:26,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:26,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:32:26,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:26,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:32:26,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:32:26,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60 [2024-11-07 23:32:26,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 59 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 23:32:26,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:26,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60 [2024-11-07 23:32:26,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:26,959 INFO L124 PetriNetUnfolderBase]: 132/361 cut-off events. [2024-11-07 23:32:26,960 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 23:32:26,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 658 conditions, 361 events. 132/361 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1723 event pairs, 20 based on Foata normal form. 76/410 useless extension candidates. Maximal degree in co-relation 630. Up to 255 conditions per place. [2024-11-07 23:32:26,965 INFO L140 encePairwiseOnDemand]: 46/60 looper letters, 46 selfloop transitions, 3 changer transitions 0/72 dead transitions. [2024-11-07 23:32:26,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 72 transitions, 249 flow [2024-11-07 23:32:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:32:26,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:32:26,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 164 transitions. [2024-11-07 23:32:26,979 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2024-11-07 23:32:26,980 INFO L175 Difference]: Start difference. First operand has 54 places, 59 transitions, 125 flow. Second operand 4 states and 164 transitions. [2024-11-07 23:32:26,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 72 transitions, 249 flow [2024-11-07 23:32:26,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 72 transitions, 249 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:32:26,989 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 115 flow [2024-11-07 23:32:26,991 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2024-11-07 23:32:26,994 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2024-11-07 23:32:26,994 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 115 flow [2024-11-07 23:32:26,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 23:32:26,994 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:26,995 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:26,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:32:26,995 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:32:26,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:26,996 INFO L85 PathProgramCache]: Analyzing trace with hash -283617741, now seen corresponding path program 1 times [2024-11-07 23:32:26,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:26,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016356001] [2024-11-07 23:32:26,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:26,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:32:27,069 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:32:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:32:27,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:32:27,122 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 23:32:27,124 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-07 23:32:27,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-07 23:32:27,128 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-07 23:32:27,128 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-07 23:32:27,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-07 23:32:27,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-07 23:32:27,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-07 23:32:27,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-07 23:32:27,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-07 23:32:27,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-07 23:32:27,130 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-07 23:32:27,130 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-07 23:32:27,130 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-07 23:32:27,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:32:27,130 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-07 23:32:27,133 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 23:32:27,133 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 23:32:27,167 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 23:32:27,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 93 transitions, 202 flow [2024-11-07 23:32:27,205 INFO L124 PetriNetUnfolderBase]: 21/142 cut-off events. [2024-11-07 23:32:27,206 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-07 23:32:27,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 142 events. 21/142 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 509 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 91. Up to 6 conditions per place. [2024-11-07 23:32:27,208 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 93 transitions, 202 flow [2024-11-07 23:32:27,210 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 93 transitions, 202 flow [2024-11-07 23:32:27,211 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:32:27,212 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;@3ff8be0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:32:27,212 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-07 23:32:27,216 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:32:27,216 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-07 23:32:27,216 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:32:27,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:27,217 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:32:27,217 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:32:27,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:27,217 INFO L85 PathProgramCache]: Analyzing trace with hash 523587221, now seen corresponding path program 1 times [2024-11-07 23:32:27,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:27,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737012768] [2024-11-07 23:32:27,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:27,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:27,348 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 23:32:27,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:27,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737012768] [2024-11-07 23:32:27,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737012768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:27,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:27,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:32:27,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899703894] [2024-11-07 23:32:27,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:27,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:32:27,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:27,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:32:27,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:32:27,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 93 [2024-11-07 23:32:27,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 93 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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 23:32:27,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:27,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 93 [2024-11-07 23:32:27,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:28,395 INFO L124 PetriNetUnfolderBase]: 4028/8613 cut-off events. [2024-11-07 23:32:28,395 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-11-07 23:32:28,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15091 conditions, 8613 events. 4028/8613 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 71810 event pairs, 1892 based on Foata normal form. 1643/9370 useless extension candidates. Maximal degree in co-relation 1207. Up to 6374 conditions per place. [2024-11-07 23:32:28,455 INFO L140 encePairwiseOnDemand]: 73/93 looper letters, 64 selfloop transitions, 3 changer transitions 0/104 dead transitions. [2024-11-07 23:32:28,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 104 transitions, 358 flow [2024-11-07 23:32:28,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:32:28,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:32:28,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2024-11-07 23:32:28,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6559139784946236 [2024-11-07 23:32:28,459 INFO L175 Difference]: Start difference. First operand has 82 places, 93 transitions, 202 flow. Second operand 4 states and 244 transitions. [2024-11-07 23:32:28,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 104 transitions, 358 flow [2024-11-07 23:32:28,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 104 transitions, 358 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:32:28,464 INFO L231 Difference]: Finished difference. Result has 87 places, 81 transitions, 198 flow [2024-11-07 23:32:28,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=198, PETRI_PLACES=87, PETRI_TRANSITIONS=81} [2024-11-07 23:32:28,465 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2024-11-07 23:32:28,465 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 81 transitions, 198 flow [2024-11-07 23:32:28,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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 23:32:28,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:28,466 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:28,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:32:28,466 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:32:28,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:28,467 INFO L85 PathProgramCache]: Analyzing trace with hash 533447868, now seen corresponding path program 1 times [2024-11-07 23:32:28,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:28,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245368243] [2024-11-07 23:32:28,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:28,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:28,628 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 23:32:28,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:28,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245368243] [2024-11-07 23:32:28,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245368243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:28,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:28,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:32:28,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372942539] [2024-11-07 23:32:28,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:28,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:32:28,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:28,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:32:28,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:32:28,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 93 [2024-11-07 23:32:28,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 81 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 23:32:28,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:28,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 93 [2024-11-07 23:32:28,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:29,833 INFO L124 PetriNetUnfolderBase]: 5385/11254 cut-off events. [2024-11-07 23:32:29,833 INFO L125 PetriNetUnfolderBase]: For 456/788 co-relation queries the response was YES. [2024-11-07 23:32:29,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20412 conditions, 11254 events. 5385/11254 cut-off events. For 456/788 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 97053 event pairs, 1446 based on Foata normal form. 219/10516 useless extension candidates. Maximal degree in co-relation 20311. Up to 5441 conditions per place. [2024-11-07 23:32:29,900 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 118 selfloop transitions, 12 changer transitions 0/169 dead transitions. [2024-11-07 23:32:29,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 169 transitions, 674 flow [2024-11-07 23:32:29,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:32:29,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:32:29,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 321 transitions. [2024-11-07 23:32:29,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6903225806451613 [2024-11-07 23:32:29,905 INFO L175 Difference]: Start difference. First operand has 87 places, 81 transitions, 198 flow. Second operand 5 states and 321 transitions. [2024-11-07 23:32:29,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 169 transitions, 674 flow [2024-11-07 23:32:29,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 169 transitions, 670 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:32:29,911 INFO L231 Difference]: Finished difference. Result has 94 places, 92 transitions, 290 flow [2024-11-07 23:32:29,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=290, PETRI_PLACES=94, PETRI_TRANSITIONS=92} [2024-11-07 23:32:29,912 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 12 predicate places. [2024-11-07 23:32:29,912 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 92 transitions, 290 flow [2024-11-07 23:32:29,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 23:32:29,913 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:29,913 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:29,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:32:29,913 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:32:29,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:29,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1385750007, now seen corresponding path program 1 times [2024-11-07 23:32:29,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:29,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100553432] [2024-11-07 23:32:29,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:29,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:30,044 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:30,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:30,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100553432] [2024-11-07 23:32:30,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100553432] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:32:30,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773870106] [2024-11-07 23:32:30,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:30,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:32:30,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:32:30,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:32:30,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 23:32:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:30,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:32:30,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:32:30,251 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:30,251 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:32:30,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773870106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:30,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:32:30,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-07 23:32:30,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325333336] [2024-11-07 23:32:30,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:30,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:32:30,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:30,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:32:30,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:32:30,261 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 93 [2024-11-07 23:32:30,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 92 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 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 23:32:30,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:30,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 93 [2024-11-07 23:32:30,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:31,480 INFO L124 PetriNetUnfolderBase]: 5504/11382 cut-off events. [2024-11-07 23:32:31,480 INFO L125 PetriNetUnfolderBase]: For 3920/3927 co-relation queries the response was YES. [2024-11-07 23:32:31,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23895 conditions, 11382 events. 5504/11382 cut-off events. For 3920/3927 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 98253 event pairs, 1518 based on Foata normal form. 152/10684 useless extension candidates. Maximal degree in co-relation 14903. Up to 6775 conditions per place. [2024-11-07 23:32:31,575 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 125 selfloop transitions, 6 changer transitions 0/168 dead transitions. [2024-11-07 23:32:31,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 168 transitions, 786 flow [2024-11-07 23:32:31,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:32:31,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:32:31,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 333 transitions. [2024-11-07 23:32:31,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5967741935483871 [2024-11-07 23:32:31,578 INFO L175 Difference]: Start difference. First operand has 94 places, 92 transitions, 290 flow. Second operand 6 states and 333 transitions. [2024-11-07 23:32:31,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 168 transitions, 786 flow [2024-11-07 23:32:31,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 168 transitions, 786 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:32:31,599 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 298 flow [2024-11-07 23:32:31,600 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=298, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2024-11-07 23:32:31,601 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 16 predicate places. [2024-11-07 23:32:31,603 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 298 flow [2024-11-07 23:32:31,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 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 23:32:31,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:31,603 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-07 23:32:31,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 23:32:31,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:32:31,808 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:32:31,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:31,809 INFO L85 PathProgramCache]: Analyzing trace with hash 8577828, now seen corresponding path program 1 times [2024-11-07 23:32:31,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:31,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568430145] [2024-11-07 23:32:31,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:31,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:32:31,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:31,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568430145] [2024-11-07 23:32:31,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568430145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:31,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:31,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:32:31,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200370522] [2024-11-07 23:32:31,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:31,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:32:31,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:31,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:32:31,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:32:31,916 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 93 [2024-11-07 23:32:31,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 298 flow. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 23:32:31,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:31,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 93 [2024-11-07 23:32:31,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:32,791 INFO L124 PetriNetUnfolderBase]: 5235/10708 cut-off events. [2024-11-07 23:32:32,791 INFO L125 PetriNetUnfolderBase]: For 4357/4361 co-relation queries the response was YES. [2024-11-07 23:32:32,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23026 conditions, 10708 events. 5235/10708 cut-off events. For 4357/4361 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 90357 event pairs, 1130 based on Foata normal form. 152/10227 useless extension candidates. Maximal degree in co-relation 17513. Up to 7245 conditions per place. [2024-11-07 23:32:32,859 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 102 selfloop transitions, 6 changer transitions 0/145 dead transitions. [2024-11-07 23:32:32,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 145 transitions, 684 flow [2024-11-07 23:32:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:32:32,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:32:32,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 234 transitions. [2024-11-07 23:32:32,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6290322580645161 [2024-11-07 23:32:32,861 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 298 flow. Second operand 4 states and 234 transitions. [2024-11-07 23:32:32,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 145 transitions, 684 flow [2024-11-07 23:32:32,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 145 transitions, 668 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-07 23:32:32,872 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 298 flow [2024-11-07 23:32:32,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=298, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2024-11-07 23:32:32,873 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 14 predicate places. [2024-11-07 23:32:32,873 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 298 flow [2024-11-07 23:32:32,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 23:32:32,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:32,873 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-11-07 23:32:32,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 23:32:32,873 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:32:32,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:32,873 INFO L85 PathProgramCache]: Analyzing trace with hash -346624655, now seen corresponding path program 1 times [2024-11-07 23:32:32,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:32,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447699610] [2024-11-07 23:32:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:32,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:32:33,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:32:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:32:33,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:32:33,040 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 23:32:33,040 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-07 23:32:33,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-07 23:32:33,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-07 23:32:33,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-07 23:32:33,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-07 23:32:33,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-07 23:32:33,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-07 23:32:33,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-07 23:32:33,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-11-07 23:32:33,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-11-07 23:32:33,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-11-07 23:32:33,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-07 23:32:33,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-07 23:32:33,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-07 23:32:33,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-07 23:32:33,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-07 23:32:33,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-07 23:32:33,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:32:33,043 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-07 23:32:33,044 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 23:32:33,044 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-07 23:32:33,077 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 23:32:33,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 126 transitions, 279 flow [2024-11-07 23:32:33,101 INFO L124 PetriNetUnfolderBase]: 34/228 cut-off events. [2024-11-07 23:32:33,101 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-07 23:32:33,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 228 events. 34/228 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 923 event pairs, 1 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 157. Up to 12 conditions per place. [2024-11-07 23:32:33,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 126 transitions, 279 flow [2024-11-07 23:32:33,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 126 transitions, 279 flow [2024-11-07 23:32:33,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:32:33,109 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;@3ff8be0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:32:33,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-07 23:32:33,112 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:32:33,112 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-07 23:32:33,112 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:32:33,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:33,112 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:32:33,113 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:32:33,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:33,113 INFO L85 PathProgramCache]: Analyzing trace with hash 643859442, now seen corresponding path program 1 times [2024-11-07 23:32:33,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:33,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833393741] [2024-11-07 23:32:33,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:33,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:33,178 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 23:32:33,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:33,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833393741] [2024-11-07 23:32:33,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833393741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:33,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:33,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:32:33,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730018814] [2024-11-07 23:32:33,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:33,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:32:33,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:33,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:32:33,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:32:33,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 126 [2024-11-07 23:32:33,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 126 transitions, 279 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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 23:32:33,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:33,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 126 [2024-11-07 23:32:33,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:41,212 INFO L124 PetriNetUnfolderBase]: 76325/138173 cut-off events. [2024-11-07 23:32:41,212 INFO L125 PetriNetUnfolderBase]: For 1879/1879 co-relation queries the response was YES. [2024-11-07 23:32:41,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245270 conditions, 138173 events. 76325/138173 cut-off events. For 1879/1879 co-relation queries the response was YES. Maximal size of possible extension queue 3150. Compared 1452092 event pairs, 49600 based on Foata normal form. 29480/155051 useless extension candidates. Maximal degree in co-relation 15960. Up to 105935 conditions per place. [2024-11-07 23:32:42,279 INFO L140 encePairwiseOnDemand]: 100/126 looper letters, 77 selfloop transitions, 3 changer transitions 0/131 dead transitions. [2024-11-07 23:32:42,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 131 transitions, 449 flow [2024-11-07 23:32:42,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:32:42,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:32:42,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2024-11-07 23:32:42,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6329365079365079 [2024-11-07 23:32:42,281 INFO L175 Difference]: Start difference. First operand has 110 places, 126 transitions, 279 flow. Second operand 4 states and 319 transitions. [2024-11-07 23:32:42,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 131 transitions, 449 flow [2024-11-07 23:32:42,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 131 transitions, 449 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:32:42,285 INFO L231 Difference]: Finished difference. Result has 115 places, 108 transitions, 263 flow [2024-11-07 23:32:42,285 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=263, PETRI_PLACES=115, PETRI_TRANSITIONS=108} [2024-11-07 23:32:42,286 INFO L277 CegarLoopForPetriNet]: 110 programPoint places, 5 predicate places. [2024-11-07 23:32:42,286 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 108 transitions, 263 flow [2024-11-07 23:32:42,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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 23:32:42,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:42,287 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:42,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 23:32:42,287 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:32:42,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:42,287 INFO L85 PathProgramCache]: Analyzing trace with hash 793559931, now seen corresponding path program 1 times [2024-11-07 23:32:42,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:42,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825875990] [2024-11-07 23:32:42,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:42,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:42,375 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 23:32:42,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:42,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825875990] [2024-11-07 23:32:42,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825875990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:42,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:42,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:32:42,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665967037] [2024-11-07 23:32:42,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:42,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:32:42,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:42,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:32:42,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:32:42,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 126 [2024-11-07 23:32:42,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 108 transitions, 263 flow. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 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 23:32:42,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:42,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 126 [2024-11-07 23:32:42,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:53,604 INFO L124 PetriNetUnfolderBase]: 111387/192543 cut-off events. [2024-11-07 23:32:53,604 INFO L125 PetriNetUnfolderBase]: For 7138/11657 co-relation queries the response was YES. [2024-11-07 23:32:54,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354539 conditions, 192543 events. 111387/192543 cut-off events. For 7138/11657 co-relation queries the response was YES. Maximal size of possible extension queue 4556. Compared 2002003 event pairs, 38008 based on Foata normal form. 2847/180515 useless extension candidates. Maximal degree in co-relation 354437. Up to 101431 conditions per place. [2024-11-07 23:32:54,834 INFO L140 encePairwiseOnDemand]: 115/126 looper letters, 170 selfloop transitions, 16 changer transitions 0/239 dead transitions. [2024-11-07 23:32:54,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 239 transitions, 967 flow [2024-11-07 23:32:54,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:32:54,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:32:54,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 447 transitions. [2024-11-07 23:32:54,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7095238095238096 [2024-11-07 23:32:54,836 INFO L175 Difference]: Start difference. First operand has 115 places, 108 transitions, 263 flow. Second operand 5 states and 447 transitions. [2024-11-07 23:32:54,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 239 transitions, 967 flow [2024-11-07 23:32:54,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 239 transitions, 963 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:32:54,847 INFO L231 Difference]: Finished difference. Result has 122 places, 123 transitions, 389 flow [2024-11-07 23:32:54,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=389, PETRI_PLACES=122, PETRI_TRANSITIONS=123} [2024-11-07 23:32:54,848 INFO L277 CegarLoopForPetriNet]: 110 programPoint places, 12 predicate places. [2024-11-07 23:32:54,849 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 123 transitions, 389 flow [2024-11-07 23:32:54,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 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 23:32:54,849 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:54,849 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:54,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 23:32:54,849 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:32:54,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:54,849 INFO L85 PathProgramCache]: Analyzing trace with hash 621064215, now seen corresponding path program 1 times [2024-11-07 23:32:54,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:54,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625476383] [2024-11-07 23:32:54,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:54,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:54,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:54,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625476383] [2024-11-07 23:32:54,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625476383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:32:54,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004387223] [2024-11-07 23:32:54,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:54,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:32:54,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:32:54,943 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:32:54,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 23:32:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:55,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:32:55,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:32:55,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:55,123 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:32:55,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004387223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:55,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:32:55,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-07 23:32:55,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346821437] [2024-11-07 23:32:55,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:55,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:32:55,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:55,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:32:55,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:32:55,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 126 [2024-11-07 23:32:55,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 123 transitions, 389 flow. Second operand has 6 states, 6 states have (on average 52.5) internal successors, (315), 6 states have internal predecessors, (315), 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 23:32:55,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:55,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 126 [2024-11-07 23:32:55,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand