./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.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_78-equ_racing.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', '246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340'] 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_78-equ_racing.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 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:34:40,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:34:40,927 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:34:40,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:34:40,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:34:40,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:34:40,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:34:40,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:34:40,963 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:34:40,963 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:34:40,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:34:40,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:34:40,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:34:40,964 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:34:40,964 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:34:40,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:34:40,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:34:40,964 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:34:40,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:34:40,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:34:40,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:34:40,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:34:40,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:34:40,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:34:40,964 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:34:40,965 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:34:40,965 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:34:40,965 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:34:40,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:34:40,965 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:34:40,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:34:40,965 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:34:40,965 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:34:40,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:34:40,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:34:40,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:34:40,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:34:40,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:34:40,965 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:34:40,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:34:40,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:34:40,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:34:40,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:34:40,966 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:34:40,966 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 -> 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 [2024-11-07 23:34:41,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:34:41,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:34:41,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:34:41,275 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:34:41,276 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:34:41,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i [2024-11-07 23:34:42,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:34:42,966 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:34:42,967 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i [2024-11-07 23:34:42,988 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7036f7dac/5d13dd75757f4fbeb6212abaeab2cd65/FLAG191c3927a [2024-11-07 23:34:43,192 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7036f7dac/5d13dd75757f4fbeb6212abaeab2cd65 [2024-11-07 23:34:43,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:34:43,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:34:43,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:34:43,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:34:43,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:34:43,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7298d3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43, skipping insertion in model container [2024-11-07 23:34:43,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,241 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:34:43,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:34:43,585 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:34:43,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:34:43,704 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:34:43,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43 WrapperNode [2024-11-07 23:34:43,706 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:34:43,707 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:34:43,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:34:43,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:34:43,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,758 INFO L138 Inliner]: procedures = 272, calls = 65, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 246 [2024-11-07 23:34:43,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:34:43,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:34:43,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:34:43,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:34:43,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,774 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,796 INFO L175 MemorySlicer]: Split 35 memory accesses to 4 slices as follows [2, 5, 26, 2]. 74 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 5, 16, 0]. The 5 writes are split as follows [0, 0, 4, 1]. [2024-11-07 23:34:43,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,814 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,816 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:34:43,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:34:43,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:34:43,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:34:43,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (1/1) ... [2024-11-07 23:34:43,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:34:43,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:34:43,860 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 23:34:43,872 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 23:34:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 23:34:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 23:34:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 23:34:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:34:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:34:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 23:34:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 23:34:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:34:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:34:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 23:34:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 23:34:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 23:34:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:34:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 23:34:43,898 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 23:34:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:34:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:34:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 23:34:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 23:34:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:34:43,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:34:43,899 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 23:34:44,022 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:34:44,023 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:34:44,385 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:34:44,385 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:34:44,632 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:34:44,632 INFO L316 CfgBuilder]: Removed 22 assume(true) statements. [2024-11-07 23:34:44,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:34:44 BoogieIcfgContainer [2024-11-07 23:34:44,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:34:44,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:34:44,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:34:44,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:34:44,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:34:43" (1/3) ... [2024-11-07 23:34:44,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51143ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:34:44, skipping insertion in model container [2024-11-07 23:34:44,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:43" (2/3) ... [2024-11-07 23:34:44,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51143ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:34:44, skipping insertion in model container [2024-11-07 23:34:44,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:34:44" (3/3) ... [2024-11-07 23:34:44,642 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_78-equ_racing.i [2024-11-07 23:34:44,653 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:34:44,653 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-07 23:34:44,653 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:34:44,702 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 23:34:44,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 119 transitions, 245 flow [2024-11-07 23:34:44,804 INFO L124 PetriNetUnfolderBase]: 36/167 cut-off events. [2024-11-07 23:34:44,809 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 23:34:44,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 167 events. 36/167 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 621 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 97. Up to 8 conditions per place. [2024-11-07 23:34:44,817 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 119 transitions, 245 flow [2024-11-07 23:34:44,822 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 117 transitions, 241 flow [2024-11-07 23:34:44,829 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:34:44,843 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;@272c6e63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:34:44,843 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-07 23:34:44,850 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:34:44,850 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-07 23:34:44,850 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:34:44,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:44,851 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:34:44,851 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:34:44,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:44,857 INFO L85 PathProgramCache]: Analyzing trace with hash 19837048, now seen corresponding path program 1 times [2024-11-07 23:34:44,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:44,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668240147] [2024-11-07 23:34:44,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:44,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:45,144 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 23:34:45,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:45,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668240147] [2024-11-07 23:34:45,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668240147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:45,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:45,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:34:45,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197328974] [2024-11-07 23:34:45,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:45,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:34:45,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:45,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:34:45,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:34:45,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 119 [2024-11-07 23:34:45,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 117 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 23:34:45,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:45,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 119 [2024-11-07 23:34:45,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:45,762 INFO L124 PetriNetUnfolderBase]: 869/2697 cut-off events. [2024-11-07 23:34:45,763 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 23:34:45,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4429 conditions, 2697 events. 869/2697 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21744 event pairs, 748 based on Foata normal form. 534/2910 useless extension candidates. Maximal degree in co-relation 2148. Up to 888 conditions per place. [2024-11-07 23:34:45,785 INFO L140 encePairwiseOnDemand]: 93/119 looper letters, 88 selfloop transitions, 5 changer transitions 0/139 dead transitions. [2024-11-07 23:34:45,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 139 transitions, 477 flow [2024-11-07 23:34:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:34:45,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:34:45,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 318 transitions. [2024-11-07 23:34:45,802 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6680672268907563 [2024-11-07 23:34:45,804 INFO L175 Difference]: Start difference. First operand has 97 places, 117 transitions, 241 flow. Second operand 4 states and 318 transitions. [2024-11-07 23:34:45,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 139 transitions, 477 flow [2024-11-07 23:34:45,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 139 transitions, 477 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:34:45,815 INFO L231 Difference]: Finished difference. Result has 100 places, 97 transitions, 218 flow [2024-11-07 23:34:45,817 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=100, PETRI_TRANSITIONS=97} [2024-11-07 23:34:45,820 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 3 predicate places. [2024-11-07 23:34:45,821 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 97 transitions, 218 flow [2024-11-07 23:34:45,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 23:34:45,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:45,822 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:34:45,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:34:45,822 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:34:45,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:45,823 INFO L85 PathProgramCache]: Analyzing trace with hash 19837038, now seen corresponding path program 1 times [2024-11-07 23:34:45,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:45,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201525619] [2024-11-07 23:34:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:45,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:45,933 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 23:34:45,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:45,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201525619] [2024-11-07 23:34:45,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201525619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:45,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:45,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:34:45,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886277394] [2024-11-07 23:34:45,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:45,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:34:45,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:45,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:34:45,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:34:45,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 119 [2024-11-07 23:34:45,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 97 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 23:34:45,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:45,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 119 [2024-11-07 23:34:45,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:46,340 INFO L124 PetriNetUnfolderBase]: 869/2703 cut-off events. [2024-11-07 23:34:46,340 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-07 23:34:46,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4500 conditions, 2703 events. 869/2703 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21813 event pairs, 765 based on Foata normal form. 1/2384 useless extension candidates. Maximal degree in co-relation 2248. Up to 1722 conditions per place. [2024-11-07 23:34:46,354 INFO L140 encePairwiseOnDemand]: 116/119 looper letters, 49 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2024-11-07 23:34:46,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 96 transitions, 318 flow [2024-11-07 23:34:46,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:34:46,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:34:46,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2024-11-07 23:34:46,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2024-11-07 23:34:46,357 INFO L175 Difference]: Start difference. First operand has 100 places, 97 transitions, 218 flow. Second operand 3 states and 189 transitions. [2024-11-07 23:34:46,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 96 transitions, 318 flow [2024-11-07 23:34:46,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 96 transitions, 313 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:34:46,360 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 215 flow [2024-11-07 23:34:46,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2024-11-07 23:34:46,360 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 2 predicate places. [2024-11-07 23:34:46,360 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 215 flow [2024-11-07 23:34:46,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 23:34:46,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:46,361 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:34:46,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:34:46,361 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:34:46,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:46,362 INFO L85 PathProgramCache]: Analyzing trace with hash 614948814, now seen corresponding path program 1 times [2024-11-07 23:34:46,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:46,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114568373] [2024-11-07 23:34:46,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:46,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:46,436 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 23:34:46,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:46,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114568373] [2024-11-07 23:34:46,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114568373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:46,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:46,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:34:46,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291249521] [2024-11-07 23:34:46,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:46,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:34:46,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:46,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:34:46,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:34:46,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 119 [2024-11-07 23:34:46,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 23:34:46,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:46,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 119 [2024-11-07 23:34:46,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:46,779 INFO L124 PetriNetUnfolderBase]: 869/2702 cut-off events. [2024-11-07 23:34:46,779 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-07 23:34:46,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4479 conditions, 2702 events. 869/2702 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21828 event pairs, 765 based on Foata normal form. 1/2383 useless extension candidates. Maximal degree in co-relation 2261. Up to 1722 conditions per place. [2024-11-07 23:34:46,796 INFO L140 encePairwiseOnDemand]: 116/119 looper letters, 48 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-11-07 23:34:46,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 313 flow [2024-11-07 23:34:46,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:34:46,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:34:46,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 188 transitions. [2024-11-07 23:34:46,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5266106442577031 [2024-11-07 23:34:46,798 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 215 flow. Second operand 3 states and 188 transitions. [2024-11-07 23:34:46,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 95 transitions, 313 flow [2024-11-07 23:34:46,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 95 transitions, 309 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:34:46,800 INFO L231 Difference]: Finished difference. Result has 98 places, 95 transitions, 213 flow [2024-11-07 23:34:46,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=98, PETRI_TRANSITIONS=95} [2024-11-07 23:34:46,801 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 1 predicate places. [2024-11-07 23:34:46,802 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 95 transitions, 213 flow [2024-11-07 23:34:46,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 23:34:46,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:46,802 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:34:46,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:34:46,802 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:34:46,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:46,803 INFO L85 PathProgramCache]: Analyzing trace with hash 614949191, now seen corresponding path program 1 times [2024-11-07 23:34:46,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:46,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738902051] [2024-11-07 23:34:46,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:46,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:46,880 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 23:34:46,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:46,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738902051] [2024-11-07 23:34:46,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738902051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:46,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:46,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:34:46,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076966914] [2024-11-07 23:34:46,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:46,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:34:46,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:46,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:34:46,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:34:46,890 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 119 [2024-11-07 23:34:46,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 95 transitions, 213 flow. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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 23:34:46,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:46,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 119 [2024-11-07 23:34:46,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:47,369 INFO L124 PetriNetUnfolderBase]: 869/2694 cut-off events. [2024-11-07 23:34:47,370 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-07 23:34:47,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4471 conditions, 2694 events. 869/2694 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21756 event pairs, 748 based on Foata normal form. 1/2376 useless extension candidates. Maximal degree in co-relation 2253. Up to 1663 conditions per place. [2024-11-07 23:34:47,384 INFO L140 encePairwiseOnDemand]: 112/119 looper letters, 52 selfloop transitions, 7 changer transitions 8/111 dead transitions. [2024-11-07 23:34:47,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 111 transitions, 379 flow [2024-11-07 23:34:47,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:34:47,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:34:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 297 transitions. [2024-11-07 23:34:47,387 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4991596638655462 [2024-11-07 23:34:47,388 INFO L175 Difference]: Start difference. First operand has 98 places, 95 transitions, 213 flow. Second operand 5 states and 297 transitions. [2024-11-07 23:34:47,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 111 transitions, 379 flow [2024-11-07 23:34:47,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 111 transitions, 375 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:34:47,392 INFO L231 Difference]: Finished difference. Result has 99 places, 94 transitions, 221 flow [2024-11-07 23:34:47,393 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=99, PETRI_TRANSITIONS=94} [2024-11-07 23:34:47,394 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 2 predicate places. [2024-11-07 23:34:47,395 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 94 transitions, 221 flow [2024-11-07 23:34:47,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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 23:34:47,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:47,395 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:34:47,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:34:47,395 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:34:47,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:47,396 INFO L85 PathProgramCache]: Analyzing trace with hash -835197098, now seen corresponding path program 1 times [2024-11-07 23:34:47,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:47,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713155867] [2024-11-07 23:34:47,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:47,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:47,506 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 23:34:47,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:47,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713155867] [2024-11-07 23:34:47,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713155867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:47,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:47,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:34:47,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117120582] [2024-11-07 23:34:47,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:47,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:34:47,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:47,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:34:47,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:34:47,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 119 [2024-11-07 23:34:47,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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 23:34:47,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:47,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 119 [2024-11-07 23:34:47,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:47,863 INFO L124 PetriNetUnfolderBase]: 855/2371 cut-off events. [2024-11-07 23:34:47,864 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-07 23:34:47,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4178 conditions, 2371 events. 855/2371 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 18486 event pairs, 86 based on Foata normal form. 36/2174 useless extension candidates. Maximal degree in co-relation 2061. Up to 1606 conditions per place. [2024-11-07 23:34:47,873 INFO L140 encePairwiseOnDemand]: 113/119 looper letters, 83 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2024-11-07 23:34:47,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 127 transitions, 459 flow [2024-11-07 23:34:47,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:34:47,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:34:47,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2024-11-07 23:34:47,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5630252100840336 [2024-11-07 23:34:47,875 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 221 flow. Second operand 4 states and 268 transitions. [2024-11-07 23:34:47,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 127 transitions, 459 flow [2024-11-07 23:34:47,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 127 transitions, 445 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:34:47,881 INFO L231 Difference]: Finished difference. Result has 97 places, 92 transitions, 213 flow [2024-11-07 23:34:47,883 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=213, PETRI_PLACES=97, PETRI_TRANSITIONS=92} [2024-11-07 23:34:47,883 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 0 predicate places. [2024-11-07 23:34:47,885 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 92 transitions, 213 flow [2024-11-07 23:34:47,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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 23:34:47,885 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:47,886 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:34:47,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:34:47,886 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:34:47,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:47,886 INFO L85 PathProgramCache]: Analyzing trace with hash -2099974910, now seen corresponding path program 1 times [2024-11-07 23:34:47,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:47,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745088299] [2024-11-07 23:34:47,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:47,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:34:47,919 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:34:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:34:47,963 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:34:47,963 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 23:34:47,964 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-07 23:34:47,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-11-07 23:34:47,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-11-07 23:34:47,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-11-07 23:34:47,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-11-07 23:34:47,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-11-07 23:34:47,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-11-07 23:34:47,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-11-07 23:34:47,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-11-07 23:34:47,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-11-07 23:34:47,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-11-07 23:34:47,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-11-07 23:34:47,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-11-07 23:34:47,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-11-07 23:34:47,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-11-07 23:34:47,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-11-07 23:34:47,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-11-07 23:34:47,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-11-07 23:34:47,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-11-07 23:34:47,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-11-07 23:34:47,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-11-07 23:34:47,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 23:34:47,967 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-07 23:34:47,973 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 23:34:47,973 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 23:34:48,009 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 23:34:48,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 165 transitions, 346 flow [2024-11-07 23:34:48,038 INFO L124 PetriNetUnfolderBase]: 60/281 cut-off events. [2024-11-07 23:34:48,039 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-07 23:34:48,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 281 events. 60/281 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1244 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 169. Up to 12 conditions per place. [2024-11-07 23:34:48,041 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 165 transitions, 346 flow [2024-11-07 23:34:48,045 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 164 transitions, 344 flow [2024-11-07 23:34:48,047 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:34:48,048 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;@272c6e63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:34:48,048 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-07 23:34:48,050 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:34:48,050 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-07 23:34:48,050 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:34:48,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:48,050 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:34:48,050 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:34:48,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:48,051 INFO L85 PathProgramCache]: Analyzing trace with hash 24916408, now seen corresponding path program 1 times [2024-11-07 23:34:48,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:48,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067168026] [2024-11-07 23:34:48,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:48,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:48,103 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 23:34:48,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:48,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067168026] [2024-11-07 23:34:48,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067168026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:48,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:48,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:34:48,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56469506] [2024-11-07 23:34:48,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:48,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:34:48,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:48,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:34:48,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:34:48,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-11-07 23:34:48,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 164 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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 23:34:48,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:48,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-11-07 23:34:48,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:52,781 INFO L124 PetriNetUnfolderBase]: 31927/68045 cut-off events. [2024-11-07 23:34:52,782 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2024-11-07 23:34:52,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115780 conditions, 68045 events. 31927/68045 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 2037. Compared 762676 event pairs, 28458 based on Foata normal form. 15650/76272 useless extension candidates. Maximal degree in co-relation 50042. Up to 24466 conditions per place. [2024-11-07 23:34:53,114 INFO L140 encePairwiseOnDemand]: 129/165 looper letters, 128 selfloop transitions, 5 changer transitions 0/196 dead transitions. [2024-11-07 23:34:53,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 196 transitions, 688 flow [2024-11-07 23:34:53,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:34:53,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:34:53,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 446 transitions. [2024-11-07 23:34:53,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6757575757575758 [2024-11-07 23:34:53,117 INFO L175 Difference]: Start difference. First operand has 133 places, 164 transitions, 344 flow. Second operand 4 states and 446 transitions. [2024-11-07 23:34:53,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 196 transitions, 688 flow [2024-11-07 23:34:53,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 196 transitions, 688 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:34:53,122 INFO L231 Difference]: Finished difference. Result has 136 places, 134 transitions, 301 flow [2024-11-07 23:34:53,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=136, PETRI_TRANSITIONS=134} [2024-11-07 23:34:53,123 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 3 predicate places. [2024-11-07 23:34:53,123 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 134 transitions, 301 flow [2024-11-07 23:34:53,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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 23:34:53,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:53,124 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:34:53,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:34:53,124 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:34:53,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:53,125 INFO L85 PathProgramCache]: Analyzing trace with hash 24916398, now seen corresponding path program 1 times [2024-11-07 23:34:53,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:53,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717690694] [2024-11-07 23:34:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:53,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:53,154 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 23:34:53,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:53,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717690694] [2024-11-07 23:34:53,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717690694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:53,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:53,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:34:53,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933472290] [2024-11-07 23:34:53,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:53,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:34:53,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:53,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:34:53,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:34:53,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-11-07 23:34:53,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 134 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 23:34:53,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:53,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-11-07 23:34:53,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:56,541 INFO L124 PetriNetUnfolderBase]: 31941/68321 cut-off events. [2024-11-07 23:34:56,542 INFO L125 PetriNetUnfolderBase]: For 650/650 co-relation queries the response was YES. [2024-11-07 23:34:56,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117161 conditions, 68321 events. 31941/68321 cut-off events. For 650/650 co-relation queries the response was YES. Maximal size of possible extension queue 2037. Compared 767780 event pairs, 29104 based on Foata normal form. 1/60783 useless extension candidates. Maximal degree in co-relation 57570. Up to 47556 conditions per place. [2024-11-07 23:34:56,926 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 69 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2024-11-07 23:34:56,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 133 transitions, 441 flow [2024-11-07 23:34:56,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:34:56,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:34:56,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2024-11-07 23:34:56,929 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5252525252525253 [2024-11-07 23:34:56,929 INFO L175 Difference]: Start difference. First operand has 136 places, 134 transitions, 301 flow. Second operand 3 states and 260 transitions. [2024-11-07 23:34:56,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 133 transitions, 441 flow [2024-11-07 23:34:56,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 133 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:34:56,933 INFO L231 Difference]: Finished difference. Result has 135 places, 133 transitions, 298 flow [2024-11-07 23:34:56,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=135, PETRI_TRANSITIONS=133} [2024-11-07 23:34:56,934 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 2 predicate places. [2024-11-07 23:34:56,934 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 133 transitions, 298 flow [2024-11-07 23:34:56,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 23:34:56,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:56,935 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:34:56,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 23:34:56,935 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:34:56,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:56,936 INFO L85 PathProgramCache]: Analyzing trace with hash 772409516, now seen corresponding path program 1 times [2024-11-07 23:34:56,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:56,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117031306] [2024-11-07 23:34:56,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:56,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:57,006 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 23:34:57,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:57,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117031306] [2024-11-07 23:34:57,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117031306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:57,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:57,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:34:57,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907471113] [2024-11-07 23:34:57,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:57,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:34:57,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:57,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:34:57,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:34:57,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-11-07 23:34:57,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 133 transitions, 298 flow. Second operand has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 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 23:34:57,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:57,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-11-07 23:34:57,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:00,454 INFO L124 PetriNetUnfolderBase]: 31927/68043 cut-off events. [2024-11-07 23:35:00,454 INFO L125 PetriNetUnfolderBase]: For 650/650 co-relation queries the response was YES. [2024-11-07 23:35:00,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116507 conditions, 68043 events. 31927/68043 cut-off events. For 650/650 co-relation queries the response was YES. Maximal size of possible extension queue 2040. Compared 762919 event pairs, 28458 based on Foata normal form. 1/60566 useless extension candidates. Maximal degree in co-relation 58910. Up to 46147 conditions per place. [2024-11-07 23:35:00,713 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 97 selfloop transitions, 7 changer transitions 0/166 dead transitions. [2024-11-07 23:35:00,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 166 transitions, 572 flow [2024-11-07 23:35:00,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:35:00,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:35:00,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 419 transitions. [2024-11-07 23:35:00,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5078787878787879 [2024-11-07 23:35:00,715 INFO L175 Difference]: Start difference. First operand has 135 places, 133 transitions, 298 flow. Second operand 5 states and 419 transitions. [2024-11-07 23:35:00,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 166 transitions, 572 flow [2024-11-07 23:35:00,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 166 transitions, 568 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:35:00,719 INFO L231 Difference]: Finished difference. Result has 136 places, 132 transitions, 306 flow [2024-11-07 23:35:00,719 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=306, PETRI_PLACES=136, PETRI_TRANSITIONS=132} [2024-11-07 23:35:00,720 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 3 predicate places. [2024-11-07 23:35:00,720 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 132 transitions, 306 flow [2024-11-07 23:35:00,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 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 23:35:00,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:00,721 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:35:00,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 23:35:00,721 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:35:00,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:00,721 INFO L85 PathProgramCache]: Analyzing trace with hash 772409139, now seen corresponding path program 1 times [2024-11-07 23:35:00,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:00,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377392514] [2024-11-07 23:35:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:00,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:00,749 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 23:35:00,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:00,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377392514] [2024-11-07 23:35:00,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377392514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:00,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:00,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:35:00,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488893417] [2024-11-07 23:35:00,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:00,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:35:00,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:00,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:35:00,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:35:00,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-11-07 23:35:00,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 132 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 23:35:00,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:00,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-11-07 23:35:00,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:04,670 INFO L124 PetriNetUnfolderBase]: 31941/68319 cut-off events. [2024-11-07 23:35:04,670 INFO L125 PetriNetUnfolderBase]: For 1806/1806 co-relation queries the response was YES. [2024-11-07 23:35:04,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117522 conditions, 68319 events. 31941/68319 cut-off events. For 1806/1806 co-relation queries the response was YES. Maximal size of possible extension queue 2040. Compared 767721 event pairs, 29104 based on Foata normal form. 1/60781 useless extension candidates. Maximal degree in co-relation 56487. Up to 47556 conditions per place. [2024-11-07 23:35:04,926 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 68 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2024-11-07 23:35:04,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 131 transitions, 444 flow [2024-11-07 23:35:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:35:04,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:35:04,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-11-07 23:35:04,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5232323232323233 [2024-11-07 23:35:04,928 INFO L175 Difference]: Start difference. First operand has 136 places, 132 transitions, 306 flow. Second operand 3 states and 259 transitions. [2024-11-07 23:35:04,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 131 transitions, 444 flow [2024-11-07 23:35:04,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 131 transitions, 430 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:35:04,954 INFO L231 Difference]: Finished difference. Result has 133 places, 131 transitions, 294 flow [2024-11-07 23:35:04,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=133, PETRI_TRANSITIONS=131} [2024-11-07 23:35:04,956 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 0 predicate places. [2024-11-07 23:35:04,956 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 131 transitions, 294 flow [2024-11-07 23:35:04,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 23:35:04,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:04,956 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:04,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 23:35:04,957 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:35:04,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:04,957 INFO L85 PathProgramCache]: Analyzing trace with hash 19030946, now seen corresponding path program 1 times [2024-11-07 23:35:04,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:04,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925173394] [2024-11-07 23:35:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:04,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:05,013 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 23:35:05,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:05,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925173394] [2024-11-07 23:35:05,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925173394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:05,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:05,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:35:05,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650723830] [2024-11-07 23:35:05,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:05,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:35:05,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:05,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:35:05,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:35:05,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-07 23:35:05,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 131 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:05,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:05,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-07 23:35:05,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:08,575 INFO L124 PetriNetUnfolderBase]: 34860/71229 cut-off events. [2024-11-07 23:35:08,575 INFO L125 PetriNetUnfolderBase]: For 382/382 co-relation queries the response was YES. [2024-11-07 23:35:08,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124394 conditions, 71229 events. 34860/71229 cut-off events. For 382/382 co-relation queries the response was YES. Maximal size of possible extension queue 2005. Compared 778634 event pairs, 17757 based on Foata normal form. 36/63417 useless extension candidates. Maximal degree in co-relation 62924. Up to 52134 conditions per place. [2024-11-07 23:35:09,078 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 107 selfloop transitions, 3 changer transitions 0/168 dead transitions. [2024-11-07 23:35:09,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 168 transitions, 588 flow [2024-11-07 23:35:09,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:35:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:35:09,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 360 transitions. [2024-11-07 23:35:09,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-11-07 23:35:09,080 INFO L175 Difference]: Start difference. First operand has 133 places, 131 transitions, 294 flow. Second operand 4 states and 360 transitions. [2024-11-07 23:35:09,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 168 transitions, 588 flow [2024-11-07 23:35:09,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 168 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:35:09,084 INFO L231 Difference]: Finished difference. Result has 136 places, 133 transitions, 314 flow [2024-11-07 23:35:09,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2024-11-07 23:35:09,084 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 3 predicate places. [2024-11-07 23:35:09,084 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 314 flow [2024-11-07 23:35:09,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:09,085 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:09,085 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:09,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 23:35:09,085 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:35:09,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:09,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1720719874, now seen corresponding path program 1 times [2024-11-07 23:35:09,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:09,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846174519] [2024-11-07 23:35:09,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:09,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:09,184 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 23:35:09,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:09,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846174519] [2024-11-07 23:35:09,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846174519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:35:09,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781057776] [2024-11-07 23:35:09,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:09,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:09,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:09,190 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 23:35:09,191 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 23:35:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:09,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:35:09,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:35:09,349 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 23:35:09,349 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:35:09,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781057776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:09,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:35:09,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-07 23:35:09,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720929015] [2024-11-07 23:35:09,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:09,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:35:09,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:09,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:35:09,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:35:09,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-07 23:35:09,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 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 23:35:09,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:09,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-07 23:35:09,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:13,249 INFO L124 PetriNetUnfolderBase]: 33885/66552 cut-off events. [2024-11-07 23:35:13,249 INFO L125 PetriNetUnfolderBase]: For 2284/2284 co-relation queries the response was YES. [2024-11-07 23:35:13,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121134 conditions, 66552 events. 33885/66552 cut-off events. For 2284/2284 co-relation queries the response was YES. Maximal size of possible extension queue 1916. Compared 703613 event pairs, 4856 based on Foata normal form. 648/61454 useless extension candidates. Maximal degree in co-relation 58765. Up to 41665 conditions per place. [2024-11-07 23:35:13,509 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 171 selfloop transitions, 6 changer transitions 0/235 dead transitions. [2024-11-07 23:35:13,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 235 transitions, 870 flow [2024-11-07 23:35:13,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:35:13,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:35:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 549 transitions. [2024-11-07 23:35:13,511 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5545454545454546 [2024-11-07 23:35:13,511 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 314 flow. Second operand 6 states and 549 transitions. [2024-11-07 23:35:13,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 235 transitions, 870 flow [2024-11-07 23:35:13,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 235 transitions, 868 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:35:13,518 INFO L231 Difference]: Finished difference. Result has 139 places, 132 transitions, 320 flow [2024-11-07 23:35:13,519 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=139, PETRI_TRANSITIONS=132} [2024-11-07 23:35:13,519 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 6 predicate places. [2024-11-07 23:35:13,519 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 132 transitions, 320 flow [2024-11-07 23:35:13,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 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 23:35:13,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:13,520 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:13,535 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 23:35:13,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-07 23:35:13,725 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:35:13,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:13,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1802707678, now seen corresponding path program 1 times [2024-11-07 23:35:13,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:13,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258018571] [2024-11-07 23:35:13,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:13,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:13,784 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 23:35:13,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:13,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258018571] [2024-11-07 23:35:13,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258018571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:13,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:13,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:35:13,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824205217] [2024-11-07 23:35:13,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:13,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:35:13,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:13,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:35:13,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:35:13,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-07 23:35:13,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 132 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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 23:35:13,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:13,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-07 23:35:13,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:17,334 INFO L124 PetriNetUnfolderBase]: 32405/62140 cut-off events. [2024-11-07 23:35:17,334 INFO L125 PetriNetUnfolderBase]: For 5048/5048 co-relation queries the response was YES. [2024-11-07 23:35:17,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115826 conditions, 62140 events. 32405/62140 cut-off events. For 5048/5048 co-relation queries the response was YES. Maximal size of possible extension queue 1845. Compared 645391 event pairs, 1870 based on Foata normal form. 648/57808 useless extension candidates. Maximal degree in co-relation 56153. Up to 43329 conditions per place. [2024-11-07 23:35:17,565 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 136 selfloop transitions, 6 changer transitions 0/200 dead transitions. [2024-11-07 23:35:17,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 200 transitions, 738 flow [2024-11-07 23:35:17,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:35:17,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:35:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 388 transitions. [2024-11-07 23:35:17,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5878787878787879 [2024-11-07 23:35:17,567 INFO L175 Difference]: Start difference. First operand has 139 places, 132 transitions, 320 flow. Second operand 4 states and 388 transitions. [2024-11-07 23:35:17,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 200 transitions, 738 flow [2024-11-07 23:35:17,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 200 transitions, 722 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-07 23:35:17,594 INFO L231 Difference]: Finished difference. Result has 137 places, 132 transitions, 320 flow [2024-11-07 23:35:17,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=320, PETRI_PLACES=137, PETRI_TRANSITIONS=132} [2024-11-07 23:35:17,595 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 4 predicate places. [2024-11-07 23:35:17,595 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 132 transitions, 320 flow [2024-11-07 23:35:17,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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 23:35:17,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:17,596 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:17,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 23:35:17,596 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:35:17,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:17,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1952899514, now seen corresponding path program 1 times [2024-11-07 23:35:17,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:17,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637584466] [2024-11-07 23:35:17,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:17,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:17,681 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 23:35:17,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:17,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637584466] [2024-11-07 23:35:17,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637584466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:17,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:17,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:35:17,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406583190] [2024-11-07 23:35:17,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:17,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:35:17,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:17,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:35:17,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:35:17,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-11-07 23:35:17,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 132 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 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 23:35:17,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:17,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-11-07 23:35:17,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:22,875 INFO L124 PetriNetUnfolderBase]: 46385/94871 cut-off events. [2024-11-07 23:35:22,876 INFO L125 PetriNetUnfolderBase]: For 8234/8234 co-relation queries the response was YES. [2024-11-07 23:35:23,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171104 conditions, 94871 events. 46385/94871 cut-off events. For 8234/8234 co-relation queries the response was YES. Maximal size of possible extension queue 3002. Compared 1085759 event pairs, 16289 based on Foata normal form. 1114/87205 useless extension candidates. Maximal degree in co-relation 82168. Up to 44124 conditions per place. [2024-11-07 23:35:23,319 INFO L140 encePairwiseOnDemand]: 153/165 looper letters, 208 selfloop transitions, 16 changer transitions 0/282 dead transitions. [2024-11-07 23:35:23,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 282 transitions, 1139 flow [2024-11-07 23:35:23,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:35:23,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:35:23,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 535 transitions. [2024-11-07 23:35:23,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2024-11-07 23:35:23,321 INFO L175 Difference]: Start difference. First operand has 137 places, 132 transitions, 320 flow. Second operand 5 states and 535 transitions. [2024-11-07 23:35:23,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 282 transitions, 1139 flow [2024-11-07 23:35:23,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 282 transitions, 1123 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:35:23,329 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 440 flow [2024-11-07 23:35:23,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=440, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2024-11-07 23:35:23,330 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 10 predicate places. [2024-11-07 23:35:23,330 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 440 flow [2024-11-07 23:35:23,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 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 23:35:23,330 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:23,331 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:23,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 23:35:23,331 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:35:23,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:23,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1530231292, now seen corresponding path program 1 times [2024-11-07 23:35:23,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:23,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491244512] [2024-11-07 23:35:23,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:23,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:35:23,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:35:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:35:23,377 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:35:23,380 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 23:35:23,380 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-11-07 23:35:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-11-07 23:35:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-11-07 23:35:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-11-07 23:35:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-11-07 23:35:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-11-07 23:35:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-11-07 23:35:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-11-07 23:35:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-11-07 23:35:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-11-07 23:35:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-11-07 23:35:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-11-07 23:35:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2024-11-07 23:35:23,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2024-11-07 23:35:23,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2024-11-07 23:35:23,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-11-07 23:35:23,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-11-07 23:35:23,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-11-07 23:35:23,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-11-07 23:35:23,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-11-07 23:35:23,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-11-07 23:35:23,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-11-07 23:35:23,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-11-07 23:35:23,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-11-07 23:35:23,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2024-11-07 23:35:23,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 23:35:23,384 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:23,385 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 23:35:23,385 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-07 23:35:23,427 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 23:35:23,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 211 transitions, 449 flow [2024-11-07 23:35:23,471 INFO L124 PetriNetUnfolderBase]: 87/416 cut-off events. [2024-11-07 23:35:23,471 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-07 23:35:23,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 416 events. 87/416 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1971 event pairs, 1 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 289. Up to 16 conditions per place. [2024-11-07 23:35:23,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 169 places, 211 transitions, 449 flow [2024-11-07 23:35:23,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 210 transitions, 447 flow [2024-11-07 23:35:23,481 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:35:23,482 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;@272c6e63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:35:23,483 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-07 23:35:23,484 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:35:23,484 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-07 23:35:23,484 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:35:23,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:23,484 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:35:23,485 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-07 23:35:23,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:23,485 INFO L85 PathProgramCache]: Analyzing trace with hash 31411832, now seen corresponding path program 1 times [2024-11-07 23:35:23,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:23,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391490030] [2024-11-07 23:35:23,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:23,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:23,526 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 23:35:23,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:23,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391490030] [2024-11-07 23:35:23,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391490030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:23,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:23,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:35:23,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15265732] [2024-11-07 23:35:23,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:23,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:35:23,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:23,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:35:23,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:35:23,536 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 211 [2024-11-07 23:35:23,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 210 transitions, 447 flow. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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 23:35:23,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:23,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 211 [2024-11-07 23:35:23,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand