./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.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/13-privatized_68-pfscan_protected_loop_minimal_interval_true.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', '6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472'] 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/13-privatized_68-pfscan_protected_loop_minimal_interval_true.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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:32:20,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:32:20,583 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:32:20,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:32:20,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:32:20,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:32:20,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:32:20,600 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:32:20,600 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:32:20,600 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:32:20,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:32:20,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:32:20,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:32:20,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:32:20,601 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:32:20,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:32:20,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:32:20,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:32:20,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:32:20,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:32:20,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:32:20,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:32:20,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:32:20,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:32:20,601 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:32:20,602 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:32:20,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:32:20,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:32:20,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:32:20,603 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 -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2024-11-07 23:32:20,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:32:20,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:32:20,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:32:20,820 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:32:20,820 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:32:20,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-07 23:32:21,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:32:22,211 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:32:22,212 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-07 23:32:22,227 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b936ea5ec/984e8e4ebac24730a9a3672e728c6033/FLAG259069e02 [2024-11-07 23:32:22,244 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b936ea5ec/984e8e4ebac24730a9a3672e728c6033 [2024-11-07 23:32:22,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:32:22,248 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:32:22,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:32:22,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:32:22,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:32:22,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62bb4490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22, skipping insertion in model container [2024-11-07 23:32:22,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:32:22,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:32:22,492 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:32:22,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:32:22,558 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:32:22,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22 WrapperNode [2024-11-07 23:32:22,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:32:22,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:32:22,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:32:22,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:32:22,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,598 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 129 [2024-11-07 23:32:22,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:32:22,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:32:22,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:32:22,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:32:22,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,614 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,627 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 3 writes are split as follows [0, 3]. [2024-11-07 23:32:22,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,639 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,647 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:32:22,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:32:22,650 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:32:22,650 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:32:22,650 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (1/1) ... [2024-11-07 23:32:22,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:32:22,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:32:22,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 23:32:22,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 23:32:22,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:32:22,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:32:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-07 23:32:22,698 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-07 23:32:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:32:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:32:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 23:32:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:32:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:32:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:32:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 23:32:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:32:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:32:22,699 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 23:32:22,793 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:32:22,794 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:32:22,960 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:32:22,960 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:32:23,094 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:32:23,094 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-07 23:32:23,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:32:23 BoogieIcfgContainer [2024-11-07 23:32:23,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:32:23,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:32:23,096 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:32:23,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:32:23,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:32:22" (1/3) ... [2024-11-07 23:32:23,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37897bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:32:23, skipping insertion in model container [2024-11-07 23:32:23,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:32:22" (2/3) ... [2024-11-07 23:32:23,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37897bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:32:23, skipping insertion in model container [2024-11-07 23:32:23,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:32:23" (3/3) ... [2024-11-07 23:32:23,102 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-07 23:32:23,111 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:32:23,112 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-07 23:32:23,112 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:32:23,147 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 23:32:23,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 41 transitions, 86 flow [2024-11-07 23:32:23,191 INFO L124 PetriNetUnfolderBase]: 6/40 cut-off events. [2024-11-07 23:32:23,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:32:23,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 40 events. 6/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-07 23:32:23,198 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 41 transitions, 86 flow [2024-11-07 23:32:23,201 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 40 transitions, 83 flow [2024-11-07 23:32:23,209 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:32:23,216 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;@5b6d981f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:32:23,217 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-07 23:32:23,222 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:32:23,222 INFO L124 PetriNetUnfolderBase]: 2/19 cut-off events. [2024-11-07 23:32:23,222 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:32:23,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:23,222 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:23,223 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:23,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:23,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1085093689, now seen corresponding path program 1 times [2024-11-07 23:32:23,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:23,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140311744] [2024-11-07 23:32:23,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:23,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:23,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:23,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:23,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140311744] [2024-11-07 23:32:23,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140311744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:23,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:23,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:32:23,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892093855] [2024-11-07 23:32:23,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:23,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:32:23,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:23,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:32:23,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:32:23,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-07 23:32:23,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 40 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:23,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:23,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-07 23:32:23,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:23,847 INFO L124 PetriNetUnfolderBase]: 363/738 cut-off events. [2024-11-07 23:32:23,847 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:32:23,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 738 events. 363/738 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3623 event pairs, 35 based on Foata normal form. 64/658 useless extension candidates. Maximal degree in co-relation 1367. Up to 352 conditions per place. [2024-11-07 23:32:23,852 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 72 selfloop transitions, 9 changer transitions 0/93 dead transitions. [2024-11-07 23:32:23,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 93 transitions, 351 flow [2024-11-07 23:32:23,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:32:23,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:32:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2024-11-07 23:32:23,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7032520325203252 [2024-11-07 23:32:23,861 INFO L175 Difference]: Start difference. First operand has 38 places, 40 transitions, 83 flow. Second operand 6 states and 173 transitions. [2024-11-07 23:32:23,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 93 transitions, 351 flow [2024-11-07 23:32:23,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 93 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:32:23,872 INFO L231 Difference]: Finished difference. Result has 45 places, 47 transitions, 148 flow [2024-11-07 23:32:23,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=148, PETRI_PLACES=45, PETRI_TRANSITIONS=47} [2024-11-07 23:32:23,875 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2024-11-07 23:32:23,876 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 47 transitions, 148 flow [2024-11-07 23:32:23,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:23,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:23,876 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:23,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:32:23,876 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:23,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:23,877 INFO L85 PathProgramCache]: Analyzing trace with hash 902029017, now seen corresponding path program 1 times [2024-11-07 23:32:23,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:23,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70495208] [2024-11-07 23:32:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:23,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:23,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:23,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:23,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70495208] [2024-11-07 23:32:23,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70495208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:23,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:23,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:32:23,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007723244] [2024-11-07 23:32:23,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:23,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:32:23,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:23,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:32:23,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:32:23,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-07 23:32:23,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 47 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:23,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:23,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-07 23:32:23,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:24,189 INFO L124 PetriNetUnfolderBase]: 298/648 cut-off events. [2024-11-07 23:32:24,189 INFO L125 PetriNetUnfolderBase]: For 135/139 co-relation queries the response was YES. [2024-11-07 23:32:24,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 648 events. 298/648 cut-off events. For 135/139 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3153 event pairs, 26 based on Foata normal form. 22/593 useless extension candidates. Maximal degree in co-relation 1386. Up to 378 conditions per place. [2024-11-07 23:32:24,197 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 66 selfloop transitions, 10 changer transitions 0/90 dead transitions. [2024-11-07 23:32:24,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 90 transitions, 389 flow [2024-11-07 23:32:24,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:32:24,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:32:24,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2024-11-07 23:32:24,199 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6707317073170732 [2024-11-07 23:32:24,199 INFO L175 Difference]: Start difference. First operand has 45 places, 47 transitions, 148 flow. Second operand 6 states and 165 transitions. [2024-11-07 23:32:24,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 90 transitions, 389 flow [2024-11-07 23:32:24,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 90 transitions, 389 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:32:24,201 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 192 flow [2024-11-07 23:32:24,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2024-11-07 23:32:24,204 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2024-11-07 23:32:24,204 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 192 flow [2024-11-07 23:32:24,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:24,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:24,204 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:24,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:32:24,205 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:24,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:24,205 INFO L85 PathProgramCache]: Analyzing trace with hash -2107583250, now seen corresponding path program 1 times [2024-11-07 23:32:24,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:24,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602559769] [2024-11-07 23:32:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:24,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:24,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:24,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602559769] [2024-11-07 23:32:24,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602559769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:24,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:24,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:32:24,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106698574] [2024-11-07 23:32:24,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:24,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:32:24,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:24,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:32:24,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:32:24,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-11-07 23:32:24,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:24,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:24,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-11-07 23:32:24,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:24,514 INFO L124 PetriNetUnfolderBase]: 467/992 cut-off events. [2024-11-07 23:32:24,514 INFO L125 PetriNetUnfolderBase]: For 570/585 co-relation queries the response was YES. [2024-11-07 23:32:24,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2391 conditions, 992 events. 467/992 cut-off events. For 570/585 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5319 event pairs, 95 based on Foata normal form. 32/945 useless extension candidates. Maximal degree in co-relation 2372. Up to 491 conditions per place. [2024-11-07 23:32:24,519 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 93 selfloop transitions, 20 changer transitions 0/124 dead transitions. [2024-11-07 23:32:24,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 124 transitions, 745 flow [2024-11-07 23:32:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:32:24,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:32:24,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 155 transitions. [2024-11-07 23:32:24,520 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6300813008130082 [2024-11-07 23:32:24,520 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 192 flow. Second operand 6 states and 155 transitions. [2024-11-07 23:32:24,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 124 transitions, 745 flow [2024-11-07 23:32:24,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 124 transitions, 719 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-07 23:32:24,526 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 351 flow [2024-11-07 23:32:24,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=351, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2024-11-07 23:32:24,527 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2024-11-07 23:32:24,527 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 351 flow [2024-11-07 23:32:24,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:24,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:24,527 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:24,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:32:24,527 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:24,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:24,527 INFO L85 PathProgramCache]: Analyzing trace with hash -910570875, now seen corresponding path program 1 times [2024-11-07 23:32:24,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:24,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779126298] [2024-11-07 23:32:24,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:24,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:24,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:24,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:24,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779126298] [2024-11-07 23:32:24,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779126298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:24,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:24,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:32:24,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503333079] [2024-11-07 23:32:24,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:24,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:32:24,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:24,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:32:24,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:32:24,621 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-07 23:32:24,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:24,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:24,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-07 23:32:24,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:24,756 INFO L124 PetriNetUnfolderBase]: 335/756 cut-off events. [2024-11-07 23:32:24,756 INFO L125 PetriNetUnfolderBase]: For 759/801 co-relation queries the response was YES. [2024-11-07 23:32:24,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2121 conditions, 756 events. 335/756 cut-off events. For 759/801 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3727 event pairs, 111 based on Foata normal form. 35/765 useless extension candidates. Maximal degree in co-relation 2099. Up to 454 conditions per place. [2024-11-07 23:32:24,760 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 57 selfloop transitions, 11 changer transitions 3/86 dead transitions. [2024-11-07 23:32:24,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 86 transitions, 555 flow [2024-11-07 23:32:24,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:32:24,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:32:24,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2024-11-07 23:32:24,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6341463414634146 [2024-11-07 23:32:24,761 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 351 flow. Second operand 5 states and 130 transitions. [2024-11-07 23:32:24,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 86 transitions, 555 flow [2024-11-07 23:32:24,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 533 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-07 23:32:24,765 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 365 flow [2024-11-07 23:32:24,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=365, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-11-07 23:32:24,766 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2024-11-07 23:32:24,766 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 365 flow [2024-11-07 23:32:24,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:24,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:24,766 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:24,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:32:24,766 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:24,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:24,766 INFO L85 PathProgramCache]: Analyzing trace with hash -731723231, now seen corresponding path program 1 times [2024-11-07 23:32:24,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:24,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805386119] [2024-11-07 23:32:24,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:24,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:24,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:24,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805386119] [2024-11-07 23:32:24,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805386119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:24,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:24,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:32:24,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326476956] [2024-11-07 23:32:24,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:24,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:32:24,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:24,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:32:24,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:32:24,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-07 23:32:24,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 365 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:24,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:24,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-07 23:32:24,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:24,956 INFO L124 PetriNetUnfolderBase]: 398/863 cut-off events. [2024-11-07 23:32:24,956 INFO L125 PetriNetUnfolderBase]: For 1267/1349 co-relation queries the response was YES. [2024-11-07 23:32:24,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2553 conditions, 863 events. 398/863 cut-off events. For 1267/1349 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4481 event pairs, 35 based on Foata normal form. 80/911 useless extension candidates. Maximal degree in co-relation 2527. Up to 559 conditions per place. [2024-11-07 23:32:24,961 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 84 selfloop transitions, 3 changer transitions 1/101 dead transitions. [2024-11-07 23:32:24,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 101 transitions, 717 flow [2024-11-07 23:32:24,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:32:24,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:32:24,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-11-07 23:32:24,963 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.676829268292683 [2024-11-07 23:32:24,963 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 365 flow. Second operand 4 states and 111 transitions. [2024-11-07 23:32:24,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 101 transitions, 717 flow [2024-11-07 23:32:24,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 101 transitions, 715 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-07 23:32:24,967 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 383 flow [2024-11-07 23:32:24,967 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2024-11-07 23:32:24,969 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 32 predicate places. [2024-11-07 23:32:24,969 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 65 transitions, 383 flow [2024-11-07 23:32:24,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:24,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:24,969 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:24,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:32:24,969 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:24,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:24,970 INFO L85 PathProgramCache]: Analyzing trace with hash -84141361, now seen corresponding path program 1 times [2024-11-07 23:32:24,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:24,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503074575] [2024-11-07 23:32:24,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:24,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:25,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:25,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:25,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503074575] [2024-11-07 23:32:25,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503074575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:25,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:25,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:32:25,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126467131] [2024-11-07 23:32:25,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:25,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:32:25,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:25,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:32:25,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:32:25,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-07 23:32:25,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 65 transitions, 383 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:25,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:25,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-07 23:32:25,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:25,314 INFO L124 PetriNetUnfolderBase]: 367/867 cut-off events. [2024-11-07 23:32:25,314 INFO L125 PetriNetUnfolderBase]: For 1185/1206 co-relation queries the response was YES. [2024-11-07 23:32:25,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2598 conditions, 867 events. 367/867 cut-off events. For 1185/1206 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4675 event pairs, 177 based on Foata normal form. 7/869 useless extension candidates. Maximal degree in co-relation 2569. Up to 609 conditions per place. [2024-11-07 23:32:25,320 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 57 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2024-11-07 23:32:25,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 78 transitions, 572 flow [2024-11-07 23:32:25,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:32:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:32:25,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2024-11-07 23:32:25,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5707317073170731 [2024-11-07 23:32:25,322 INFO L175 Difference]: Start difference. First operand has 70 places, 65 transitions, 383 flow. Second operand 5 states and 117 transitions. [2024-11-07 23:32:25,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 78 transitions, 572 flow [2024-11-07 23:32:25,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 78 transitions, 559 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-07 23:32:25,329 INFO L231 Difference]: Finished difference. Result has 73 places, 66 transitions, 400 flow [2024-11-07 23:32:25,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=400, PETRI_PLACES=73, PETRI_TRANSITIONS=66} [2024-11-07 23:32:25,330 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 35 predicate places. [2024-11-07 23:32:25,330 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 66 transitions, 400 flow [2024-11-07 23:32:25,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:25,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:25,331 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:25,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 23:32:25,331 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:25,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:25,331 INFO L85 PathProgramCache]: Analyzing trace with hash 22454703, now seen corresponding path program 2 times [2024-11-07 23:32:25,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:25,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779791731] [2024-11-07 23:32:25,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:25,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:25,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:25,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:25,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779791731] [2024-11-07 23:32:25,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779791731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:25,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:25,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 23:32:25,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003796890] [2024-11-07 23:32:25,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:25,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 23:32:25,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:25,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 23:32:25,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:32:25,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-07 23:32:25,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 400 flow. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:25,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:25,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-07 23:32:25,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:25,786 INFO L124 PetriNetUnfolderBase]: 400/942 cut-off events. [2024-11-07 23:32:25,786 INFO L125 PetriNetUnfolderBase]: For 1608/1629 co-relation queries the response was YES. [2024-11-07 23:32:25,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2974 conditions, 942 events. 400/942 cut-off events. For 1608/1629 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5184 event pairs, 182 based on Foata normal form. 13/950 useless extension candidates. Maximal degree in co-relation 2943. Up to 630 conditions per place. [2024-11-07 23:32:25,791 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 68 selfloop transitions, 20 changer transitions 1/103 dead transitions. [2024-11-07 23:32:25,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 103 transitions, 819 flow [2024-11-07 23:32:25,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:32:25,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:32:25,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 208 transitions. [2024-11-07 23:32:25,793 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5073170731707317 [2024-11-07 23:32:25,793 INFO L175 Difference]: Start difference. First operand has 73 places, 66 transitions, 400 flow. Second operand 10 states and 208 transitions. [2024-11-07 23:32:25,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 103 transitions, 819 flow [2024-11-07 23:32:25,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 103 transitions, 787 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-07 23:32:25,798 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 578 flow [2024-11-07 23:32:25,798 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=578, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-11-07 23:32:25,798 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 46 predicate places. [2024-11-07 23:32:25,798 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 578 flow [2024-11-07 23:32:25,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:25,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:25,799 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:25,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:32:25,799 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:25,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:25,799 INFO L85 PathProgramCache]: Analyzing trace with hash 531534455, now seen corresponding path program 3 times [2024-11-07 23:32:25,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:25,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754479615] [2024-11-07 23:32:25,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:25,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:26,013 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 23:32:26,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:26,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754479615] [2024-11-07 23:32:26,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754479615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:26,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:26,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 23:32:26,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248742080] [2024-11-07 23:32:26,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:26,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 23:32:26,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:26,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 23:32:26,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:32:26,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-07 23:32:26,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 578 flow. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:26,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:26,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-07 23:32:26,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:26,217 INFO L124 PetriNetUnfolderBase]: 393/935 cut-off events. [2024-11-07 23:32:26,217 INFO L125 PetriNetUnfolderBase]: For 2075/2092 co-relation queries the response was YES. [2024-11-07 23:32:26,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3139 conditions, 935 events. 393/935 cut-off events. For 2075/2092 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4822 event pairs, 154 based on Foata normal form. 12/943 useless extension candidates. Maximal degree in co-relation 3103. Up to 605 conditions per place. [2024-11-07 23:32:26,222 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 71 selfloop transitions, 23 changer transitions 1/109 dead transitions. [2024-11-07 23:32:26,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 109 transitions, 959 flow [2024-11-07 23:32:26,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 23:32:26,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 23:32:26,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2024-11-07 23:32:26,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5365853658536586 [2024-11-07 23:32:26,224 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 578 flow. Second operand 8 states and 176 transitions. [2024-11-07 23:32:26,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 109 transitions, 959 flow [2024-11-07 23:32:26,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 913 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-07 23:32:26,230 INFO L231 Difference]: Finished difference. Result has 91 places, 85 transitions, 697 flow [2024-11-07 23:32:26,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=697, PETRI_PLACES=91, PETRI_TRANSITIONS=85} [2024-11-07 23:32:26,231 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 53 predicate places. [2024-11-07 23:32:26,231 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 85 transitions, 697 flow [2024-11-07 23:32:26,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:26,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:26,231 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:26,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 23:32:26,231 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:26,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:26,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1248191038, now seen corresponding path program 1 times [2024-11-07 23:32:26,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:26,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592296259] [2024-11-07 23:32:26,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:26,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:26,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:26,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592296259] [2024-11-07 23:32:26,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592296259] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:32:26,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245275433] [2024-11-07 23:32:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:26,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:32:26,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:32:26,449 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:32:26,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 23:32:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:26,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-07 23:32:26,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:32:26,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-07 23:32:26,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-07 23:32:26,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-07 23:32:26,732 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:26,733 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:32:26,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:26,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245275433] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:32:26,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:32:26,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 19 [2024-11-07 23:32:26,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261457112] [2024-11-07 23:32:26,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:32:26,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 23:32:26,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:26,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 23:32:26,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-11-07 23:32:26,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-11-07 23:32:26,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 85 transitions, 697 flow. Second operand has 21 states, 21 states have (on average 14.380952380952381) internal successors, (302), 21 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:26,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:26,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-11-07 23:32:26,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:28,005 INFO L124 PetriNetUnfolderBase]: 1416/2974 cut-off events. [2024-11-07 23:32:28,006 INFO L125 PetriNetUnfolderBase]: For 5824/6039 co-relation queries the response was YES. [2024-11-07 23:32:28,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9773 conditions, 2974 events. 1416/2974 cut-off events. For 5824/6039 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 17623 event pairs, 108 based on Foata normal form. 198/3153 useless extension candidates. Maximal degree in co-relation 9733. Up to 576 conditions per place. [2024-11-07 23:32:28,024 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 348 selfloop transitions, 102 changer transitions 0/465 dead transitions. [2024-11-07 23:32:28,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 465 transitions, 3915 flow [2024-11-07 23:32:28,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 23:32:28,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-07 23:32:28,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 543 transitions. [2024-11-07 23:32:28,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6019955654101996 [2024-11-07 23:32:28,026 INFO L175 Difference]: Start difference. First operand has 91 places, 85 transitions, 697 flow. Second operand 22 states and 543 transitions. [2024-11-07 23:32:28,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 465 transitions, 3915 flow [2024-11-07 23:32:28,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 465 transitions, 3776 flow, removed 42 selfloop flow, removed 4 redundant places. [2024-11-07 23:32:28,042 INFO L231 Difference]: Finished difference. Result has 117 places, 179 transitions, 1724 flow [2024-11-07 23:32:28,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1724, PETRI_PLACES=117, PETRI_TRANSITIONS=179} [2024-11-07 23:32:28,042 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 79 predicate places. [2024-11-07 23:32:28,042 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 179 transitions, 1724 flow [2024-11-07 23:32:28,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.380952380952381) internal successors, (302), 21 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:28,042 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:28,042 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:28,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 23:32:28,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:32:28,246 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:28,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:28,247 INFO L85 PathProgramCache]: Analyzing trace with hash -268526372, now seen corresponding path program 1 times [2024-11-07 23:32:28,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:28,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4103925] [2024-11-07 23:32:28,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:28,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:28,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:28,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:28,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4103925] [2024-11-07 23:32:28,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4103925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:28,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:28,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 23:32:28,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475549687] [2024-11-07 23:32:28,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:28,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:32:28,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:28,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:32:28,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 23:32:28,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-07 23:32:28,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 179 transitions, 1724 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:28,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:28,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-07 23:32:28,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:29,126 INFO L124 PetriNetUnfolderBase]: 2848/5971 cut-off events. [2024-11-07 23:32:29,126 INFO L125 PetriNetUnfolderBase]: For 16881/17232 co-relation queries the response was YES. [2024-11-07 23:32:29,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21920 conditions, 5971 events. 2848/5971 cut-off events. For 16881/17232 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 41094 event pairs, 330 based on Foata normal form. 329/6280 useless extension candidates. Maximal degree in co-relation 21871. Up to 1268 conditions per place. [2024-11-07 23:32:29,168 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 322 selfloop transitions, 208 changer transitions 0/548 dead transitions. [2024-11-07 23:32:29,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 548 transitions, 5906 flow [2024-11-07 23:32:29,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:32:29,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:32:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 256 transitions. [2024-11-07 23:32:29,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.624390243902439 [2024-11-07 23:32:29,170 INFO L175 Difference]: Start difference. First operand has 117 places, 179 transitions, 1724 flow. Second operand 10 states and 256 transitions. [2024-11-07 23:32:29,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 548 transitions, 5906 flow [2024-11-07 23:32:29,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 548 transitions, 5221 flow, removed 307 selfloop flow, removed 6 redundant places. [2024-11-07 23:32:29,226 INFO L231 Difference]: Finished difference. Result has 127 places, 367 transitions, 3991 flow [2024-11-07 23:32:29,226 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1525, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3991, PETRI_PLACES=127, PETRI_TRANSITIONS=367} [2024-11-07 23:32:29,226 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 89 predicate places. [2024-11-07 23:32:29,226 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 367 transitions, 3991 flow [2024-11-07 23:32:29,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:29,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:29,227 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:29,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 23:32:29,227 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:29,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:29,227 INFO L85 PathProgramCache]: Analyzing trace with hash 273094066, now seen corresponding path program 2 times [2024-11-07 23:32:29,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:29,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121371611] [2024-11-07 23:32:29,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:29,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:29,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:29,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:29,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121371611] [2024-11-07 23:32:29,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121371611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:29,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:29,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 23:32:29,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271102594] [2024-11-07 23:32:29,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:29,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 23:32:29,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:29,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 23:32:29,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:32:29,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-11-07 23:32:29,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 367 transitions, 3991 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:29,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:29,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-11-07 23:32:29,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:30,636 INFO L124 PetriNetUnfolderBase]: 4121/8417 cut-off events. [2024-11-07 23:32:30,636 INFO L125 PetriNetUnfolderBase]: For 36519/36916 co-relation queries the response was YES. [2024-11-07 23:32:30,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34863 conditions, 8417 events. 4121/8417 cut-off events. For 36519/36916 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 60730 event pairs, 929 based on Foata normal form. 377/8747 useless extension candidates. Maximal degree in co-relation 34810. Up to 4476 conditions per place. [2024-11-07 23:32:30,733 INFO L140 encePairwiseOnDemand]: 27/41 looper letters, 480 selfloop transitions, 205 changer transitions 1/700 dead transitions. [2024-11-07 23:32:30,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 700 transitions, 8359 flow [2024-11-07 23:32:30,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 23:32:30,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-07 23:32:30,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 360 transitions. [2024-11-07 23:32:30,735 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-11-07 23:32:30,735 INFO L175 Difference]: Start difference. First operand has 127 places, 367 transitions, 3991 flow. Second operand 18 states and 360 transitions. [2024-11-07 23:32:30,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 700 transitions, 8359 flow [2024-11-07 23:32:30,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 700 transitions, 8333 flow, removed 13 selfloop flow, removed 0 redundant places. [2024-11-07 23:32:30,853 INFO L231 Difference]: Finished difference. Result has 158 places, 527 transitions, 6771 flow [2024-11-07 23:32:30,853 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3969, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6771, PETRI_PLACES=158, PETRI_TRANSITIONS=527} [2024-11-07 23:32:30,854 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 120 predicate places. [2024-11-07 23:32:30,854 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 527 transitions, 6771 flow [2024-11-07 23:32:30,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:30,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:30,854 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:30,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 23:32:30,854 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:30,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:30,855 INFO L85 PathProgramCache]: Analyzing trace with hash 766686372, now seen corresponding path program 3 times [2024-11-07 23:32:30,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:30,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630693162] [2024-11-07 23:32:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:30,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:30,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:30,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:30,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630693162] [2024-11-07 23:32:30,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630693162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:30,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:30,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 23:32:30,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631197653] [2024-11-07 23:32:30,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:30,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:32:30,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:30,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:32:30,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 23:32:30,954 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-07 23:32:30,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 527 transitions, 6771 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:30,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:30,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-07 23:32:30,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:32,226 INFO L124 PetriNetUnfolderBase]: 3546/7619 cut-off events. [2024-11-07 23:32:32,226 INFO L125 PetriNetUnfolderBase]: For 53282/53712 co-relation queries the response was YES. [2024-11-07 23:32:32,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34368 conditions, 7619 events. 3546/7619 cut-off events. For 53282/53712 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 55527 event pairs, 670 based on Foata normal form. 517/8077 useless extension candidates. Maximal degree in co-relation 34299. Up to 3450 conditions per place. [2024-11-07 23:32:32,272 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 220 selfloop transitions, 397 changer transitions 1/636 dead transitions. [2024-11-07 23:32:32,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 636 transitions, 9053 flow [2024-11-07 23:32:32,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 23:32:32,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 23:32:32,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 164 transitions. [2024-11-07 23:32:32,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-07 23:32:32,273 INFO L175 Difference]: Start difference. First operand has 158 places, 527 transitions, 6771 flow. Second operand 8 states and 164 transitions. [2024-11-07 23:32:32,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 636 transitions, 9053 flow [2024-11-07 23:32:32,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 636 transitions, 8663 flow, removed 57 selfloop flow, removed 4 redundant places. [2024-11-07 23:32:32,434 INFO L231 Difference]: Finished difference. Result has 160 places, 577 transitions, 7671 flow [2024-11-07 23:32:32,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=6383, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=345, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7671, PETRI_PLACES=160, PETRI_TRANSITIONS=577} [2024-11-07 23:32:32,435 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 122 predicate places. [2024-11-07 23:32:32,435 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 577 transitions, 7671 flow [2024-11-07 23:32:32,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:32,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:32,435 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:32,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 23:32:32,435 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:32,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:32,436 INFO L85 PathProgramCache]: Analyzing trace with hash -39216106, now seen corresponding path program 1 times [2024-11-07 23:32:32,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:32,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641802509] [2024-11-07 23:32:32,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:32,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:32,473 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:32:32,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:32,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641802509] [2024-11-07 23:32:32,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641802509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:32,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:32:32,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:32:32,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676580875] [2024-11-07 23:32:32,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:32,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:32:32,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:32,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:32:32,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:32:32,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-07 23:32:32,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 577 transitions, 7671 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:32,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:32,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-07 23:32:32,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:33,483 INFO L124 PetriNetUnfolderBase]: 3654/7688 cut-off events. [2024-11-07 23:32:33,483 INFO L125 PetriNetUnfolderBase]: For 53516/53891 co-relation queries the response was YES. [2024-11-07 23:32:33,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36513 conditions, 7688 events. 3654/7688 cut-off events. For 53516/53891 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 55559 event pairs, 826 based on Foata normal form. 522/8123 useless extension candidates. Maximal degree in co-relation 36445. Up to 3652 conditions per place. [2024-11-07 23:32:33,610 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 546 selfloop transitions, 138 changer transitions 0/706 dead transitions. [2024-11-07 23:32:33,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 706 transitions, 10698 flow [2024-11-07 23:32:33,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:32:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:32:33,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-11-07 23:32:33,612 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6524390243902439 [2024-11-07 23:32:33,612 INFO L175 Difference]: Start difference. First operand has 160 places, 577 transitions, 7671 flow. Second operand 4 states and 107 transitions. [2024-11-07 23:32:33,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 706 transitions, 10698 flow [2024-11-07 23:32:33,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 706 transitions, 10468 flow, removed 86 selfloop flow, removed 2 redundant places. [2024-11-07 23:32:33,762 INFO L231 Difference]: Finished difference. Result has 163 places, 587 transitions, 8221 flow [2024-11-07 23:32:33,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=7178, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=8221, PETRI_PLACES=163, PETRI_TRANSITIONS=587} [2024-11-07 23:32:33,763 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 125 predicate places. [2024-11-07 23:32:33,763 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 587 transitions, 8221 flow [2024-11-07 23:32:33,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:33,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:33,763 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:33,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 23:32:33,763 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:33,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:33,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1215700716, now seen corresponding path program 1 times [2024-11-07 23:32:33,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:33,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691963145] [2024-11-07 23:32:33,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:33,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:33,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:33,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691963145] [2024-11-07 23:32:33,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691963145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:32:33,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310545073] [2024-11-07 23:32:33,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:33,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:32:33,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:32:33,816 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:32:33,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 23:32:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:33,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:32:33,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:32:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:33,906 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:32:33,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310545073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:32:33,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:32:33,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-07 23:32:33,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105749611] [2024-11-07 23:32:33,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:32:33,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:32:33,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:33,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:32:33,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:32:33,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-07 23:32:33,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 587 transitions, 8221 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:33,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:33,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-07 23:32:33,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:35,183 INFO L124 PetriNetUnfolderBase]: 3753/7720 cut-off events. [2024-11-07 23:32:35,183 INFO L125 PetriNetUnfolderBase]: For 59559/59908 co-relation queries the response was YES. [2024-11-07 23:32:35,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38603 conditions, 7720 events. 3753/7720 cut-off events. For 59559/59908 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 54819 event pairs, 955 based on Foata normal form. 486/7998 useless extension candidates. Maximal degree in co-relation 38534. Up to 4613 conditions per place. [2024-11-07 23:32:35,254 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 562 selfloop transitions, 126 changer transitions 63/774 dead transitions. [2024-11-07 23:32:35,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 774 transitions, 12022 flow [2024-11-07 23:32:35,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:32:35,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:32:35,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-11-07 23:32:35,255 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6341463414634146 [2024-11-07 23:32:35,255 INFO L175 Difference]: Start difference. First operand has 163 places, 587 transitions, 8221 flow. Second operand 6 states and 156 transitions. [2024-11-07 23:32:35,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 774 transitions, 12022 flow [2024-11-07 23:32:35,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 774 transitions, 11998 flow, removed 12 selfloop flow, removed 0 redundant places. [2024-11-07 23:32:35,445 INFO L231 Difference]: Finished difference. Result has 167 places, 586 transitions, 8445 flow [2024-11-07 23:32:35,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=8193, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8445, PETRI_PLACES=167, PETRI_TRANSITIONS=586} [2024-11-07 23:32:35,446 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 129 predicate places. [2024-11-07 23:32:35,446 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 586 transitions, 8445 flow [2024-11-07 23:32:35,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:35,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:35,446 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:35,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 23:32:35,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:32:35,647 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:35,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:35,647 INFO L85 PathProgramCache]: Analyzing trace with hash 967983861, now seen corresponding path program 1 times [2024-11-07 23:32:35,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:35,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872962084] [2024-11-07 23:32:35,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:35,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:35,729 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:35,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:35,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872962084] [2024-11-07 23:32:35,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872962084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:32:35,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428558366] [2024-11-07 23:32:35,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:35,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:32:35,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:32:35,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:32:35,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 23:32:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:35,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:32:35,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:32:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:35,832 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:32:35,871 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:35,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428558366] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:32:35,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:32:35,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:32:35,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756313145] [2024-11-07 23:32:35,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:32:35,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:32:35,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:35,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:32:35,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:32:35,882 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-07 23:32:35,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 586 transitions, 8445 flow. Second operand has 12 states, 12 states have (on average 16.583333333333332) internal successors, (199), 12 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:35,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:35,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-07 23:32:35,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:32:39,652 INFO L124 PetriNetUnfolderBase]: 11870/24045 cut-off events. [2024-11-07 23:32:39,652 INFO L125 PetriNetUnfolderBase]: For 191000/191973 co-relation queries the response was YES. [2024-11-07 23:32:39,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122243 conditions, 24045 events. 11870/24045 cut-off events. For 191000/191973 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 199904 event pairs, 2496 based on Foata normal form. 1396/25321 useless extension candidates. Maximal degree in co-relation 122173. Up to 6532 conditions per place. [2024-11-07 23:32:39,900 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 1687 selfloop transitions, 317 changer transitions 1/2028 dead transitions. [2024-11-07 23:32:39,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 2028 transitions, 32450 flow [2024-11-07 23:32:39,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:32:39,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:32:39,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 284 transitions. [2024-11-07 23:32:39,902 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6926829268292682 [2024-11-07 23:32:39,902 INFO L175 Difference]: Start difference. First operand has 167 places, 586 transitions, 8445 flow. Second operand 10 states and 284 transitions. [2024-11-07 23:32:39,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 2028 transitions, 32450 flow [2024-11-07 23:32:40,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 2028 transitions, 32383 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-07 23:32:40,801 INFO L231 Difference]: Finished difference. Result has 176 places, 884 transitions, 14211 flow [2024-11-07 23:32:40,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=8387, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14211, PETRI_PLACES=176, PETRI_TRANSITIONS=884} [2024-11-07 23:32:40,802 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 138 predicate places. [2024-11-07 23:32:40,802 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 884 transitions, 14211 flow [2024-11-07 23:32:40,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.583333333333332) internal successors, (199), 12 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:40,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:32:40,802 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:32:40,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 23:32:41,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:32:41,003 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:32:41,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:32:41,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1120311519, now seen corresponding path program 1 times [2024-11-07 23:32:41,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:32:41,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522432503] [2024-11-07 23:32:41,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:41,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:32:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:41,285 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:41,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:32:41,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522432503] [2024-11-07 23:32:41,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522432503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:32:41,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129951611] [2024-11-07 23:32:41,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:32:41,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:32:41,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:32:41,289 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:32:41,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 23:32:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:32:41,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-07 23:32:41,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:32:41,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-07 23:32:41,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-07 23:32:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:41,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:32:41,750 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-11-07 23:32:41,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 34 [2024-11-07 23:32:41,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:32:41,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129951611] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:32:41,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:32:41,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 27 [2024-11-07 23:32:41,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874613091] [2024-11-07 23:32:41,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:32:41,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-07 23:32:41,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:32:41,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-07 23:32:41,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2024-11-07 23:32:41,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-11-07 23:32:41,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 884 transitions, 14211 flow. Second operand has 28 states, 28 states have (on average 10.642857142857142) internal successors, (298), 28 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:32:41,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:32:41,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-11-07 23:32:41,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:33:04,391 INFO L124 PetriNetUnfolderBase]: 37941/72611 cut-off events. [2024-11-07 23:33:04,392 INFO L125 PetriNetUnfolderBase]: For 652683/652740 co-relation queries the response was YES. [2024-11-07 23:33:05,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371686 conditions, 72611 events. 37941/72611 cut-off events. For 652683/652740 co-relation queries the response was YES. Maximal size of possible extension queue 1213. Compared 666343 event pairs, 1750 based on Foata normal form. 3024/75627 useless extension candidates. Maximal degree in co-relation 371613. Up to 11275 conditions per place. [2024-11-07 23:33:05,474 INFO L140 encePairwiseOnDemand]: 22/41 looper letters, 1049 selfloop transitions, 3928 changer transitions 18/5001 dead transitions. [2024-11-07 23:33:05,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 5001 transitions, 84047 flow [2024-11-07 23:33:05,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2024-11-07 23:33:05,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2024-11-07 23:33:05,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 2041 transitions. [2024-11-07 23:33:05,478 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3771249076127125 [2024-11-07 23:33:05,478 INFO L175 Difference]: Start difference. First operand has 176 places, 884 transitions, 14211 flow. Second operand 132 states and 2041 transitions. [2024-11-07 23:33:05,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 5001 transitions, 84047 flow [2024-11-07 23:33:12,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 5001 transitions, 83537 flow, removed 157 selfloop flow, removed 5 redundant places. [2024-11-07 23:33:12,288 INFO L231 Difference]: Finished difference. Result has 401 places, 4281 transitions, 84587 flow [2024-11-07 23:33:12,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=13592, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=854, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=750, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=132, PETRI_FLOW=84587, PETRI_PLACES=401, PETRI_TRANSITIONS=4281} [2024-11-07 23:33:12,289 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 363 predicate places. [2024-11-07 23:33:12,290 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 4281 transitions, 84587 flow [2024-11-07 23:33:12,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.642857142857142) internal successors, (298), 28 states have internal predecessors, (298), 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 23:33:12,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:33:12,290 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:33:12,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-07 23:33:12,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-07 23:33:12,492 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:33:12,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:33:12,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1568302287, now seen corresponding path program 2 times [2024-11-07 23:33:12,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:33:12,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204957852] [2024-11-07 23:33:12,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:33:12,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:33:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:33:12,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:33:12,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:33:12,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204957852] [2024-11-07 23:33:12,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204957852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:33:12,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166827638] [2024-11-07 23:33:12,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:33:12,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:33:12,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:33:12,673 INFO L229 MonitoredProcess]: Starting monitored process 6 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 23:33:12,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 23:33:12,749 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 23:33:12,750 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:33:12,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-07 23:33:12,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:33:12,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 23:33:12,836 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:33:12,840 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:33:12,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166827638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:33:12,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:33:12,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2024-11-07 23:33:12,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016323185] [2024-11-07 23:33:12,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:33:12,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:33:12,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:33:12,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:33:12,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-07 23:33:12,846 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-07 23:33:12,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 4281 transitions, 84587 flow. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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 23:33:12,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:33:12,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-07 23:33:12,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand