./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-crafted/zero_sum_const_m5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/array-crafted/zero_sum_const_m5.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '1ea5dd3dcdb2ca45816b1054e161d4e883537a3d70de7c4c731596cc44c337d4'] 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/array-crafted/zero_sum_const_m5.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ea5dd3dcdb2ca45816b1054e161d4e883537a3d70de7c4c731596cc44c337d4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 18:30:01,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 18:30:01,671 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 18:30:01,677 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 18:30:01,677 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 18:30:01,709 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 18:30:01,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 18:30:01,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 18:30:01,711 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 18:30:01,712 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 18:30:01,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 18:30:01,712 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 18:30:01,712 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 18:30:01,712 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 18:30:01,712 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 18:30:01,713 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 18:30:01,713 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 18:30:01,713 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 18:30:01,713 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 18:30:01,713 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 18:30:01,713 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 18:30:01,713 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 18:30:01,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 18:30:01,714 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 18:30:01,714 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 18:30:01,714 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 18:30:01,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 18:30:01,714 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 18:30:01,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 18:30:01,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 18:30:01,714 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 18:30:01,715 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 18:30:01,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 18:30:01,715 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 18:30:01,715 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 18:30:01,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 18:30:01,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 18:30:01,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 18:30:01,715 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 18:30:01,716 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 18:30:01,716 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 18:30:01,716 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 18:30:01,716 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 ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ea5dd3dcdb2ca45816b1054e161d4e883537a3d70de7c4c731596cc44c337d4 [2024-11-06 18:30:01,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 18:30:01,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 18:30:01,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 18:30:01,989 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 18:30:01,990 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 18:30:01,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/zero_sum_const_m5.c [2024-11-06 18:30:03,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 18:30:03,429 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 18:30:03,430 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-crafted/zero_sum_const_m5.c [2024-11-06 18:30:03,436 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a630f996f/9bb2705516b0453c980e436aaa0ca6dd/FLAG18f370a72 [2024-11-06 18:30:03,449 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a630f996f/9bb2705516b0453c980e436aaa0ca6dd [2024-11-06 18:30:03,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 18:30:03,453 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 18:30:03,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 18:30:03,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 18:30:03,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 18:30:03,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11655ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03, skipping insertion in model container [2024-11-06 18:30:03,461 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,476 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 18:30:03,606 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-crafted/zero_sum_const_m5.c[408,421] [2024-11-06 18:30:03,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 18:30:03,649 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 18:30:03,658 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-crafted/zero_sum_const_m5.c[408,421] [2024-11-06 18:30:03,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 18:30:03,688 INFO L204 MainTranslator]: Completed translation [2024-11-06 18:30:03,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03 WrapperNode [2024-11-06 18:30:03,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 18:30:03,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 18:30:03,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 18:30:03,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 18:30:03,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,726 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 149 [2024-11-06 18:30:03,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 18:30:03,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 18:30:03,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 18:30:03,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 18:30:03,737 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,743 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,757 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-06 18:30:03,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,778 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 18:30:03,783 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 18:30:03,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 18:30:03,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 18:30:03,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (1/1) ... [2024-11-06 18:30:03,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 18:30:03,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:30:03,813 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) [2024-11-06 18:30:03,818 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 [2024-11-06 18:30:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 18:30:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 18:30:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-06 18:30:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-06 18:30:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-06 18:30:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-06 18:30:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 18:30:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 18:30:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-06 18:30:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-06 18:30:03,933 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 18:30:03,935 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 18:30:04,102 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-06 18:30:04,102 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 18:30:04,110 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 18:30:04,111 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-06 18:30:04,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:30:04 BoogieIcfgContainer [2024-11-06 18:30:04,112 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 18:30:04,115 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 18:30:04,116 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 18:30:04,122 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 18:30:04,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:30:03" (1/3) ... [2024-11-06 18:30:04,123 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245c1a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:30:04, skipping insertion in model container [2024-11-06 18:30:04,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:03" (2/3) ... [2024-11-06 18:30:04,123 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245c1a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:30:04, skipping insertion in model container [2024-11-06 18:30:04,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:30:04" (3/3) ... [2024-11-06 18:30:04,125 INFO L112 eAbstractionObserver]: Analyzing ICFG zero_sum_const_m5.c [2024-11-06 18:30:04,139 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 18:30:04,140 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 18:30:04,194 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 18:30:04,207 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;@7bc6c3ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 18:30:04,208 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 18:30:04,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.5952380952380953) internal successors, (67), 43 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) [2024-11-06 18:30:04,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-06 18:30:04,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:30:04,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:30:04,220 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:30:04,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:30:04,225 INFO L85 PathProgramCache]: Analyzing trace with hash 226651140, now seen corresponding path program 1 times [2024-11-06 18:30:04,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:30:04,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470628131] [2024-11-06 18:30:04,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:30:04,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:30:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:30:04,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:30:04,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:30:04,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470628131] [2024-11-06 18:30:04,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470628131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:30:04,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:30:04,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:30:04,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176305391] [2024-11-06 18:30:04,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:30:04,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 18:30:04,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:30:04,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 18:30:04,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 18:30:04,427 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.5952380952380953) internal successors, (67), 43 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) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2024-11-06 18:30:04,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:30:04,442 INFO L93 Difference]: Finished difference Result 83 states and 126 transitions. [2024-11-06 18:30:04,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 18:30:04,444 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) Word has length 27 [2024-11-06 18:30:04,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:30:04,451 INFO L225 Difference]: With dead ends: 83 [2024-11-06 18:30:04,451 INFO L226 Difference]: Without dead ends: 39 [2024-11-06 18:30:04,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 18:30:04,458 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 18:30:04,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 18:30:04,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-06 18:30:04,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-06 18:30:04,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 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) [2024-11-06 18:30:04,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2024-11-06 18:30:04,495 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 27 [2024-11-06 18:30:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:30:04,495 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2024-11-06 18:30:04,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2024-11-06 18:30:04,496 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2024-11-06 18:30:04,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-06 18:30:04,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:30:04,497 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:30:04,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 18:30:04,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:30:04,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:30:04,498 INFO L85 PathProgramCache]: Analyzing trace with hash -833651044, now seen corresponding path program 1 times [2024-11-06 18:30:04,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:30:04,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975604847] [2024-11-06 18:30:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:30:04,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:30:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:30:04,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:30:04,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:30:04,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975604847] [2024-11-06 18:30:04,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975604847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:30:04,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:30:04,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:30:04,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988507737] [2024-11-06 18:30:04,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:30:04,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:30:04,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:30:04,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:30:04,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:30:04,638 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-06 18:30:04,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:30:04,735 INFO L93 Difference]: Finished difference Result 75 states and 95 transitions. [2024-11-06 18:30:04,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:30:04,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) Word has length 27 [2024-11-06 18:30:04,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:30:04,737 INFO L225 Difference]: With dead ends: 75 [2024-11-06 18:30:04,737 INFO L226 Difference]: Without dead ends: 41 [2024-11-06 18:30:04,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:30:04,738 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:30:04,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 50 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 18:30:04,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-06 18:30:04,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2024-11-06 18:30:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 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) [2024-11-06 18:30:04,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2024-11-06 18:30:04,746 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 27 [2024-11-06 18:30:04,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:30:04,746 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2024-11-06 18:30:04,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-06 18:30:04,747 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2024-11-06 18:30:04,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-06 18:30:04,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:30:04,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:30:04,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 18:30:04,747 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:30:04,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:30:04,749 INFO L85 PathProgramCache]: Analyzing trace with hash 479992254, now seen corresponding path program 1 times [2024-11-06 18:30:04,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:30:04,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154387132] [2024-11-06 18:30:04,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:30:04,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:30:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:30:04,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-06 18:30:04,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:30:04,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154387132] [2024-11-06 18:30:04,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154387132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:30:04,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:30:04,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 18:30:04,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287874165] [2024-11-06 18:30:04,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:30:04,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 18:30:04,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:30:04,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 18:30:04,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:30:04,847 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:30:04,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:30:04,998 INFO L93 Difference]: Finished difference Result 92 states and 120 transitions. [2024-11-06 18:30:04,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 18:30:04,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-06 18:30:04,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:30:05,000 INFO L225 Difference]: With dead ends: 92 [2024-11-06 18:30:05,000 INFO L226 Difference]: Without dead ends: 61 [2024-11-06 18:30:05,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:30:05,001 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 73 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:30:05,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 19 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 18:30:05,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-06 18:30:05,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2024-11-06 18:30:05,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 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) [2024-11-06 18:30:05,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2024-11-06 18:30:05,014 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 29 [2024-11-06 18:30:05,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:30:05,014 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2024-11-06 18:30:05,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:30:05,015 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2024-11-06 18:30:05,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-06 18:30:05,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:30:05,015 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:30:05,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 18:30:05,016 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:30:05,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:30:05,016 INFO L85 PathProgramCache]: Analyzing trace with hash -509099182, now seen corresponding path program 1 times [2024-11-06 18:30:05,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:30:05,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530697795] [2024-11-06 18:30:05,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:30:05,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:30:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:30:05,182 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-06 18:30:05,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:30:05,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530697795] [2024-11-06 18:30:05,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530697795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:30:05,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137317773] [2024-11-06 18:30:05,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:30:05,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:30:05,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:30:05,186 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) [2024-11-06 18:30:05,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 18:30:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:30:05,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 18:30:05,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:30:05,379 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-06 18:30:05,381 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:30:05,417 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-06 18:30:05,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137317773] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:30:05,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:30:05,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-06 18:30:05,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389185662] [2024-11-06 18:30:05,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:30:05,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 18:30:05,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:30:05,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 18:30:05,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-06 18:30:05,421 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2024-11-06 18:30:05,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:30:05,586 INFO L93 Difference]: Finished difference Result 97 states and 117 transitions. [2024-11-06 18:30:05,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 18:30:05,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) Word has length 49 [2024-11-06 18:30:05,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:30:05,587 INFO L225 Difference]: With dead ends: 97 [2024-11-06 18:30:05,587 INFO L226 Difference]: Without dead ends: 53 [2024-11-06 18:30:05,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-06 18:30:05,588 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:30:05,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 49 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 18:30:05,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-06 18:30:05,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2024-11-06 18:30:05,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 51 states have internal predecessors, (62), 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) [2024-11-06 18:30:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2024-11-06 18:30:05,600 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 49 [2024-11-06 18:30:05,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:30:05,602 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2024-11-06 18:30:05,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2024-11-06 18:30:05,603 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2024-11-06 18:30:05,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-06 18:30:05,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:30:05,604 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:30:05,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 18:30:05,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:30:05,805 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:30:05,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:30:05,805 INFO L85 PathProgramCache]: Analyzing trace with hash 290748660, now seen corresponding path program 2 times [2024-11-06 18:30:05,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:30:05,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162534529] [2024-11-06 18:30:05,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:30:05,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:30:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:30:05,926 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-06 18:30:05,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:30:05,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162534529] [2024-11-06 18:30:05,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162534529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:30:05,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172209217] [2024-11-06 18:30:05,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 18:30:05,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:30:05,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:30:05,929 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) [2024-11-06 18:30:05,930 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 [2024-11-06 18:30:05,997 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-06 18:30:05,998 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 18:30:05,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 18:30:06,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:30:06,083 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-06 18:30:06,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:30:06,163 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-06 18:30:06,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172209217] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:30:06,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:30:06,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-06 18:30:06,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123562421] [2024-11-06 18:30:06,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:30:06,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 18:30:06,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:30:06,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 18:30:06,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-06 18:30:06,165 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) [2024-11-06 18:30:06,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:30:06,357 INFO L93 Difference]: Finished difference Result 123 states and 151 transitions. [2024-11-06 18:30:06,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 18:30:06,359 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) Word has length 51 [2024-11-06 18:30:06,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:30:06,360 INFO L225 Difference]: With dead ends: 123 [2024-11-06 18:30:06,360 INFO L226 Difference]: Without dead ends: 83 [2024-11-06 18:30:06,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 96 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-11-06 18:30:06,361 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 58 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 18:30:06,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 22 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 18:30:06,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-06 18:30:06,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 72. [2024-11-06 18:30:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.1549295774647887) internal successors, (82), 71 states have internal predecessors, (82), 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) [2024-11-06 18:30:06,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2024-11-06 18:30:06,377 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 51 [2024-11-06 18:30:06,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:30:06,377 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2024-11-06 18:30:06,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) [2024-11-06 18:30:06,378 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2024-11-06 18:30:06,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-06 18:30:06,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:30:06,379 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:30:06,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 18:30:06,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:30:06,580 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:30:06,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:30:06,581 INFO L85 PathProgramCache]: Analyzing trace with hash -813057144, now seen corresponding path program 3 times [2024-11-06 18:30:06,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:30:06,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242209480] [2024-11-06 18:30:06,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:30:06,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:30:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:30:12,556 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:30:12,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:30:12,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242209480] [2024-11-06 18:30:12,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242209480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:30:12,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818420689] [2024-11-06 18:30:12,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-06 18:30:12,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:30:12,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:30:12,561 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) [2024-11-06 18:30:12,562 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 [2024-11-06 18:30:12,646 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-06 18:30:12,646 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 18:30:12,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-06 18:30:12,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:30:15,108 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:30:15,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:30:17,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-06 18:30:17,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 43 [2024-11-06 18:30:18,018 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:30:18,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818420689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:30:18,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:30:18,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 39, 42] total 117 [2024-11-06 18:30:18,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367377233] [2024-11-06 18:30:18,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:30:18,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 117 states [2024-11-06 18:30:18,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:30:18,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2024-11-06 18:30:18,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=445, Invalid=13127, Unknown=0, NotChecked=0, Total=13572 [2024-11-06 18:30:18,027 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand has 117 states, 117 states have (on average 1.7179487179487178) internal successors, (201), 117 states have internal predecessors, (201), 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) [2024-11-06 18:30:22,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:30:22,372 INFO L93 Difference]: Finished difference Result 143 states and 163 transitions. [2024-11-06 18:30:22,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-06 18:30:22,373 INFO L78 Accepts]: Start accepts. Automaton has has 117 states, 117 states have (on average 1.7179487179487178) internal successors, (201), 117 states have internal predecessors, (201), 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) Word has length 71 [2024-11-06 18:30:22,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:30:22,376 INFO L225 Difference]: With dead ends: 143 [2024-11-06 18:30:22,378 INFO L226 Difference]: Without dead ends: 139 [2024-11-06 18:30:22,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5106 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=662, Invalid=22290, Unknown=0, NotChecked=0, Total=22952 [2024-11-06 18:30:22,385 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 12 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 4768 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 4813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 4768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:30:22,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 382 Invalid, 4813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 4768 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-06 18:30:22,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-06 18:30:22,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 125. [2024-11-06 18:30:22,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.1612903225806452) internal successors, (144), 124 states have internal predecessors, (144), 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) [2024-11-06 18:30:22,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 144 transitions. [2024-11-06 18:30:22,407 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 144 transitions. Word has length 71 [2024-11-06 18:30:22,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:30:22,408 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 144 transitions. [2024-11-06 18:30:22,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 117 states, 117 states have (on average 1.7179487179487178) internal successors, (201), 117 states have internal predecessors, (201), 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) [2024-11-06 18:30:22,408 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 144 transitions. [2024-11-06 18:30:22,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-06 18:30:22,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:30:22,409 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:30:22,427 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 [2024-11-06 18:30:22,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:30:22,610 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:30:22,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:30:22,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1767165226, now seen corresponding path program 4 times [2024-11-06 18:30:22,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:30:22,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330178480] [2024-11-06 18:30:22,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:30:22,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:30:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:30:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-06 18:30:22,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:30:22,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330178480] [2024-11-06 18:30:22,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330178480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:30:22,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143826647] [2024-11-06 18:30:22,755 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-06 18:30:22,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:30:22,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:30:22,758 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) [2024-11-06 18:30:22,760 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 [2024-11-06 18:30:22,835 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-06 18:30:22,835 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 18:30:22,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-06 18:30:22,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:30:22,929 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-06 18:30:22,929 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:30:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-06 18:30:23,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143826647] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:30:23,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:30:23,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-06 18:30:23,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955524916] [2024-11-06 18:30:23,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:30:23,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-06 18:30:23,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:30:23,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-06 18:30:23,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-06 18:30:23,010 INFO L87 Difference]: Start difference. First operand 125 states and 144 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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) [2024-11-06 18:30:23,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:30:23,366 INFO L93 Difference]: Finished difference Result 277 states and 323 transitions. [2024-11-06 18:30:23,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-06 18:30:23,367 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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) Word has length 73 [2024-11-06 18:30:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:30:23,368 INFO L225 Difference]: With dead ends: 277 [2024-11-06 18:30:23,368 INFO L226 Difference]: Without dead ends: 157 [2024-11-06 18:30:23,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 136 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-06 18:30:23,369 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 91 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:30:23,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 60 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:30:23,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-06 18:30:23,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 140. [2024-11-06 18:30:23,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.1366906474820144) internal successors, (158), 139 states have internal predecessors, (158), 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) [2024-11-06 18:30:23,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 158 transitions. [2024-11-06 18:30:23,386 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 158 transitions. Word has length 73 [2024-11-06 18:30:23,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:30:23,386 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 158 transitions. [2024-11-06 18:30:23,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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) [2024-11-06 18:30:23,386 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 158 transitions. [2024-11-06 18:30:23,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-06 18:30:23,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:30:23,387 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:30:23,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-06 18:30:23,594 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,SelfDestructingSolverStorable6 [2024-11-06 18:30:23,595 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:30:23,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:30:23,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1072452492, now seen corresponding path program 5 times [2024-11-06 18:30:23,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:30:23,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110684571] [2024-11-06 18:30:23,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:30:23,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:30:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:30:23,709 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-06 18:30:23,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:30:23,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110684571] [2024-11-06 18:30:23,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110684571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:30:23,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285198541] [2024-11-06 18:30:23,710 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-06 18:30:23,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:30:23,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:30:23,713 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) [2024-11-06 18:30:23,714 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 [2024-11-06 18:30:23,840 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-06 18:30:23,841 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 18:30:23,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-06 18:30:23,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:30:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-06 18:30:23,980 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:30:24,095 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-06 18:30:24,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285198541] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:30:24,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:30:24,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-06 18:30:24,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695579996] [2024-11-06 18:30:24,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:30:24,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-06 18:30:24,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:30:24,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-06 18:30:24,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-06 18:30:24,097 INFO L87 Difference]: Start difference. First operand 140 states and 158 transitions. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 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) [2024-11-06 18:30:24,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:30:24,419 INFO L93 Difference]: Finished difference Result 156 states and 174 transitions. [2024-11-06 18:30:24,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-06 18:30:24,420 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 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) Word has length 75 [2024-11-06 18:30:24,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:30:24,421 INFO L225 Difference]: With dead ends: 156 [2024-11-06 18:30:24,421 INFO L226 Difference]: Without dead ends: 104 [2024-11-06 18:30:24,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 139 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2024-11-06 18:30:24,422 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 130 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:30:24,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 27 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:30:24,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-06 18:30:24,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 94. [2024-11-06 18:30:24,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.118279569892473) internal successors, (104), 93 states have internal predecessors, (104), 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) [2024-11-06 18:30:24,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 104 transitions. [2024-11-06 18:30:24,431 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 104 transitions. Word has length 75 [2024-11-06 18:30:24,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:30:24,431 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 104 transitions. [2024-11-06 18:30:24,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 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) [2024-11-06 18:30:24,432 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 104 transitions. [2024-11-06 18:30:24,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-06 18:30:24,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:30:24,432 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:30:24,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-06 18:30:24,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:30:24,633 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:30:24,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:30:24,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1413596990, now seen corresponding path program 6 times [2024-11-06 18:30:24,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:30:24,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881811946] [2024-11-06 18:30:24,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:30:24,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:30:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:30:34,528 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:30:34,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:30:34,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881811946] [2024-11-06 18:30:34,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881811946] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:30:34,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844509620] [2024-11-06 18:30:34,529 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-06 18:30:34,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:30:34,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:30:34,531 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:30:34,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-06 18:30:34,616 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-06 18:30:34,616 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 18:30:34,621 WARN L253 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 135 conjuncts are in the unsatisfiable core [2024-11-06 18:30:34,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:30:34,732 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 [2024-11-06 18:30:39,765 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:30:39,766 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:30:47,393 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-06 18:30:47,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844509620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:30:47,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:30:47,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 59, 59] total 190 [2024-11-06 18:30:47,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673070898] [2024-11-06 18:30:47,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:30:47,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2024-11-06 18:30:47,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:30:47,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2024-11-06 18:30:47,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=643, Invalid=35267, Unknown=0, NotChecked=0, Total=35910 [2024-11-06 18:30:47,401 INFO L87 Difference]: Start difference. First operand 94 states and 104 transitions. Second operand has 190 states, 190 states have (on average 1.368421052631579) internal successors, (260), 190 states have internal predecessors, (260), 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) [2024-11-06 18:31:16,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:31:16,250 INFO L93 Difference]: Finished difference Result 423 states and 476 transitions. [2024-11-06 18:31:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2024-11-06 18:31:16,250 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 190 states have (on average 1.368421052631579) internal successors, (260), 190 states have internal predecessors, (260), 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) Word has length 93 [2024-11-06 18:31:16,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:31:16,252 INFO L225 Difference]: With dead ends: 423 [2024-11-06 18:31:16,252 INFO L226 Difference]: Without dead ends: 417 [2024-11-06 18:31:16,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 313 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19880 ImplicationChecksByTransitivity, 34.8s TimeCoverageRelationStatistics Valid=3742, Invalid=95168, Unknown=0, NotChecked=0, Total=98910 [2024-11-06 18:31:16,259 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 2080 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 20340 mSolverCounterSat, 3945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2080 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 24285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3945 IncrementalHoareTripleChecker+Valid, 20340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-11-06 18:31:16,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2080 Valid, 846 Invalid, 24285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3945 Valid, 20340 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2024-11-06 18:31:16,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-06 18:31:16,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 229. [2024-11-06 18:31:16,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 1.1271929824561404) internal successors, (257), 228 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:31:16,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 257 transitions. [2024-11-06 18:31:16,283 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 257 transitions. Word has length 93 [2024-11-06 18:31:16,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:31:16,284 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 257 transitions. [2024-11-06 18:31:16,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 190 states have (on average 1.368421052631579) internal successors, (260), 190 states have internal predecessors, (260), 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) [2024-11-06 18:31:16,284 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 257 transitions. [2024-11-06 18:31:16,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-06 18:31:16,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:31:16,286 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:31:16,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-06 18:31:16,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-06 18:31:16,487 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:31:16,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:31:16,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1592040608, now seen corresponding path program 7 times [2024-11-06 18:31:16,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:31:16,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331786846] [2024-11-06 18:31:16,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:31:16,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:31:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:31:16,616 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-06 18:31:16,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:31:16,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331786846] [2024-11-06 18:31:16,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331786846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:31:16,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125869869] [2024-11-06 18:31:16,616 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-06 18:31:16,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:31:16,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:31:16,619 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:31:16,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-06 18:31:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:31:16,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-06 18:31:16,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:31:16,798 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-06 18:31:16,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:31:16,873 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-06 18:31:16,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125869869] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:31:16,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:31:16,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2024-11-06 18:31:16,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419540228] [2024-11-06 18:31:16,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:31:16,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-06 18:31:16,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:31:16,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-06 18:31:16,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-06 18:31:16,875 INFO L87 Difference]: Start difference. First operand 229 states and 257 transitions. Second operand has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 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) [2024-11-06 18:31:17,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:31:17,193 INFO L93 Difference]: Finished difference Result 406 states and 459 transitions. [2024-11-06 18:31:17,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-06 18:31:17,194 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 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) Word has length 95 [2024-11-06 18:31:17,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:31:17,194 INFO L225 Difference]: With dead ends: 406 [2024-11-06 18:31:17,194 INFO L226 Difference]: Without dead ends: 131 [2024-11-06 18:31:17,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 177 SyntacticMatches, 7 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-11-06 18:31:17,196 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 187 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:31:17,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 44 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:31:17,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-06 18:31:17,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 114. [2024-11-06 18:31:17,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.0973451327433628) internal successors, (124), 113 states have internal predecessors, (124), 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) [2024-11-06 18:31:17,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2024-11-06 18:31:17,209 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 95 [2024-11-06 18:31:17,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:31:17,209 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2024-11-06 18:31:17,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 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) [2024-11-06 18:31:17,209 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2024-11-06 18:31:17,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-06 18:31:17,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:31:17,210 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:31:17,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-06 18:31:17,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:31:17,410 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:31:17,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:31:17,411 INFO L85 PathProgramCache]: Analyzing trace with hash 771636818, now seen corresponding path program 8 times [2024-11-06 18:31:17,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:31:17,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084380548] [2024-11-06 18:31:17,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:31:17,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:31:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:31:17,580 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-06 18:31:17,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:31:17,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084380548] [2024-11-06 18:31:17,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084380548] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:31:17,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546578343] [2024-11-06 18:31:17,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 18:31:17,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:31:17,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:31:17,583 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:31:17,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-06 18:31:17,675 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-06 18:31:17,675 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 18:31:17,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-06 18:31:17,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:31:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-06 18:31:17,832 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:31:17,960 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-06 18:31:17,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546578343] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:31:17,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:31:17,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2024-11-06 18:31:17,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805401512] [2024-11-06 18:31:17,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:31:17,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-06 18:31:17,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:31:17,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-06 18:31:17,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-06 18:31:17,962 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 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) [2024-11-06 18:31:18,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:31:18,272 INFO L93 Difference]: Finished difference Result 130 states and 140 transitions. [2024-11-06 18:31:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 18:31:18,273 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 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) Word has length 113 [2024-11-06 18:31:18,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:31:18,273 INFO L225 Difference]: With dead ends: 130 [2024-11-06 18:31:18,274 INFO L226 Difference]: Without dead ends: 126 [2024-11-06 18:31:18,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 212 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2024-11-06 18:31:18,274 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 151 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:31:18,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 41 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:31:18,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-06 18:31:18,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 116. [2024-11-06 18:31:18,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.0956521739130434) internal successors, (126), 115 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) [2024-11-06 18:31:18,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 126 transitions. [2024-11-06 18:31:18,287 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 126 transitions. Word has length 113 [2024-11-06 18:31:18,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:31:18,287 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 126 transitions. [2024-11-06 18:31:18,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 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) [2024-11-06 18:31:18,287 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 126 transitions. [2024-11-06 18:31:18,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-06 18:31:18,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:31:18,288 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:31:18,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-06 18:31:18,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:31:18,489 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:31:18,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:31:18,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1433123212, now seen corresponding path program 9 times [2024-11-06 18:31:18,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:31:18,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892050473] [2024-11-06 18:31:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:31:18,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:31:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat