./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.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/bitvector/s3_srvr_2a.BV.c.cil.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', 'b8cfead7c1f307a9ba2676fad86c005fa434c5b4bc168c34fe90a644ea9973b2'] 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/bitvector/s3_srvr_2a.BV.c.cil.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 b8cfead7c1f307a9ba2676fad86c005fa434c5b4bc168c34fe90a644ea9973b2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 18:49:47,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 18:49:47,763 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 18:49:47,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 18:49:47,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 18:49:47,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 18:49:47,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 18:49:47,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 18:49:47,802 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 18:49:47,802 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 18:49:47,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 18:49:47,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 18:49:47,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 18:49:47,804 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 18:49:47,804 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 18:49:47,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 18:49:47,804 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 18:49:47,804 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 18:49:47,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 18:49:47,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 18:49:47,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 18:49:47,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 18:49:47,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 18:49:47,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 18:49:47,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 18:49:47,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 18:49:47,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 18:49:47,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 18:49:47,806 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 18:49:47,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 18:49:47,806 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 -> b8cfead7c1f307a9ba2676fad86c005fa434c5b4bc168c34fe90a644ea9973b2 [2024-11-06 18:49:48,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 18:49:48,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 18:49:48,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 18:49:48,097 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 18:49:48,097 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 18:49:48,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c [2024-11-06 18:49:49,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 18:49:49,580 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 18:49:49,581 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c [2024-11-06 18:49:49,596 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a8e1c8f11/18c6e412ecc14c188b9c768b6f0015d4/FLAGd699b0f56 [2024-11-06 18:49:49,614 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a8e1c8f11/18c6e412ecc14c188b9c768b6f0015d4 [2024-11-06 18:49:49,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 18:49:49,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 18:49:49,619 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 18:49:49,619 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 18:49:49,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 18:49:49,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:49,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3317fff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49, skipping insertion in model container [2024-11-06 18:49:49,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:49,651 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 18:49:49,862 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/bitvector/s3_srvr_2a.BV.c.cil.c[44872,44885] [2024-11-06 18:49:49,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 18:49:49,887 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 18:49:49,941 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/bitvector/s3_srvr_2a.BV.c.cil.c[44872,44885] [2024-11-06 18:49:49,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 18:49:49,959 INFO L204 MainTranslator]: Completed translation [2024-11-06 18:49:49,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49 WrapperNode [2024-11-06 18:49:49,961 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 18:49:49,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 18:49:49,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 18:49:49,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 18:49:49,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:49,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:50,015 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 567 [2024-11-06 18:49:50,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 18:49:50,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 18:49:50,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 18:49:50,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 18:49:50,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:50,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:50,030 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:50,051 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-06 18:49:50,051 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:50,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:50,059 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:50,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:50,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:50,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:50,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 18:49:50,075 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 18:49:50,075 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 18:49:50,075 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 18:49:50,076 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (1/1) ... [2024-11-06 18:49:50,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 18:49:50,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:49:50,109 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 18:49:50,114 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 18:49:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 18:49:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 18:49:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 18:49:50,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 18:49:50,237 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 18:49:50,238 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 18:49:50,249 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-06 18:49:50,712 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2024-11-06 18:49:50,713 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2024-11-06 18:49:50,755 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-06 18:49:50,756 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 18:49:50,771 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 18:49:50,772 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 18:49:50,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:49:50 BoogieIcfgContainer [2024-11-06 18:49:50,772 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 18:49:50,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 18:49:50,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 18:49:50,779 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 18:49:50,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:49:49" (1/3) ... [2024-11-06 18:49:50,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668519fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:49:50, skipping insertion in model container [2024-11-06 18:49:50,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:49:49" (2/3) ... [2024-11-06 18:49:50,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668519fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:49:50, skipping insertion in model container [2024-11-06 18:49:50,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:49:50" (3/3) ... [2024-11-06 18:49:50,782 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2a.BV.c.cil.c [2024-11-06 18:49:50,794 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 18:49:50,795 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 18:49:50,849 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 18:49:50,862 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;@7a8e7246, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 18:49:50,862 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 18:49:50,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 136 states have (on average 1.7426470588235294) internal successors, (237), 137 states have internal predecessors, (237), 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 18:49:50,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-06 18:49:50,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:50,874 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] [2024-11-06 18:49:50,874 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:50,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:50,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1632002022, now seen corresponding path program 1 times [2024-11-06 18:49:50,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:50,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811607204] [2024-11-06 18:49:50,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:50,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:51,294 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 18:49:51,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:51,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811607204] [2024-11-06 18:49:51,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811607204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:51,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:51,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:51,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789537381] [2024-11-06 18:49:51,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:51,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:51,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:51,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:51,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:51,326 INFO L87 Difference]: Start difference. First operand has 138 states, 136 states have (on average 1.7426470588235294) internal successors, (237), 137 states have internal predecessors, (237), 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 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 18:49:51,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:51,580 INFO L93 Difference]: Finished difference Result 309 states and 538 transitions. [2024-11-06 18:49:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:51,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2024-11-06 18:49:51,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:51,590 INFO L225 Difference]: With dead ends: 309 [2024-11-06 18:49:51,591 INFO L226 Difference]: Without dead ends: 156 [2024-11-06 18:49:51,594 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 18:49:51,597 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 41 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:51,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 257 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 18:49:51,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-06 18:49:51,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-11-06 18:49:51,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 1.6) internal successors, (248), 155 states have internal predecessors, (248), 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 18:49:51,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 248 transitions. [2024-11-06 18:49:51,649 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 248 transitions. Word has length 44 [2024-11-06 18:49:51,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:51,649 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 248 transitions. [2024-11-06 18:49:51,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 18:49:51,650 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 248 transitions. [2024-11-06 18:49:51,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-06 18:49:51,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:51,653 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] [2024-11-06 18:49:51,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 18:49:51,653 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:51,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:51,654 INFO L85 PathProgramCache]: Analyzing trace with hash -954580408, now seen corresponding path program 1 times [2024-11-06 18:49:51,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:51,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773982192] [2024-11-06 18:49:51,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:51,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:51,817 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 18:49:51,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:51,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773982192] [2024-11-06 18:49:51,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773982192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:51,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:51,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:51,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552066965] [2024-11-06 18:49:51,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:51,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:51,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:51,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:51,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:51,821 INFO L87 Difference]: Start difference. First operand 156 states and 248 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 18:49:51,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:51,989 INFO L93 Difference]: Finished difference Result 347 states and 560 transitions. [2024-11-06 18:49:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:51,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2024-11-06 18:49:51,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:51,991 INFO L225 Difference]: With dead ends: 347 [2024-11-06 18:49:51,991 INFO L226 Difference]: Without dead ends: 197 [2024-11-06 18:49:51,992 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 18:49:51,992 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 23 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:51,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 181 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 18:49:51,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-06 18:49:52,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-06 18:49:52,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 1.6326530612244898) internal successors, (320), 196 states have internal predecessors, (320), 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 18:49:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 320 transitions. [2024-11-06 18:49:52,011 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 320 transitions. Word has length 45 [2024-11-06 18:49:52,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:52,011 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 320 transitions. [2024-11-06 18:49:52,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 18:49:52,012 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 320 transitions. [2024-11-06 18:49:52,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-06 18:49:52,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:52,016 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:49:52,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 18:49:52,016 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:52,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:52,020 INFO L85 PathProgramCache]: Analyzing trace with hash 2033157093, now seen corresponding path program 1 times [2024-11-06 18:49:52,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:52,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326549238] [2024-11-06 18:49:52,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:52,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:52,107 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:49:52,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:52,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326549238] [2024-11-06 18:49:52,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326549238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:52,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:52,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:52,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113097728] [2024-11-06 18:49:52,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:52,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:52,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:52,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:52,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:52,109 INFO L87 Difference]: Start difference. First operand 197 states and 320 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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 18:49:52,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:52,144 INFO L93 Difference]: Finished difference Result 569 states and 929 transitions. [2024-11-06 18:49:52,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:52,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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) Word has length 60 [2024-11-06 18:49:52,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:52,146 INFO L225 Difference]: With dead ends: 569 [2024-11-06 18:49:52,146 INFO L226 Difference]: Without dead ends: 380 [2024-11-06 18:49:52,147 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 18:49:52,148 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 111 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:52,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 475 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 18:49:52,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-06 18:49:52,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2024-11-06 18:49:52,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 379 states have (on average 1.6279683377308707) internal successors, (617), 379 states have internal predecessors, (617), 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 18:49:52,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 617 transitions. [2024-11-06 18:49:52,169 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 617 transitions. Word has length 60 [2024-11-06 18:49:52,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:52,170 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 617 transitions. [2024-11-06 18:49:52,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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 18:49:52,170 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 617 transitions. [2024-11-06 18:49:52,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-06 18:49:52,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:52,172 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:49:52,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 18:49:52,173 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:52,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:52,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2013663709, now seen corresponding path program 1 times [2024-11-06 18:49:52,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:52,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996921841] [2024-11-06 18:49:52,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:52,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:49:52,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:52,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996921841] [2024-11-06 18:49:52,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996921841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:52,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:52,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:52,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205961360] [2024-11-06 18:49:52,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:52,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:52,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:52,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:52,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:52,238 INFO L87 Difference]: Start difference. First operand 380 states and 617 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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 18:49:52,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:52,280 INFO L93 Difference]: Finished difference Result 938 states and 1528 transitions. [2024-11-06 18:49:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:52,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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) Word has length 60 [2024-11-06 18:49:52,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:52,283 INFO L225 Difference]: With dead ends: 938 [2024-11-06 18:49:52,283 INFO L226 Difference]: Without dead ends: 566 [2024-11-06 18:49:52,284 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 18:49:52,285 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 148 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:52,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 330 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 18:49:52,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-06 18:49:52,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2024-11-06 18:49:52,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 565 states have (on average 1.6247787610619469) internal successors, (918), 565 states have internal predecessors, (918), 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 18:49:52,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 918 transitions. [2024-11-06 18:49:52,319 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 918 transitions. Word has length 60 [2024-11-06 18:49:52,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:52,320 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 918 transitions. [2024-11-06 18:49:52,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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 18:49:52,320 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 918 transitions. [2024-11-06 18:49:52,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-06 18:49:52,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:52,322 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:49:52,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 18:49:52,323 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:52,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:52,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1930486570, now seen corresponding path program 1 times [2024-11-06 18:49:52,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:52,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385439813] [2024-11-06 18:49:52,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:52,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:52,440 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-06 18:49:52,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:52,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385439813] [2024-11-06 18:49:52,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385439813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:52,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:52,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:52,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007681349] [2024-11-06 18:49:52,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:52,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:52,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:52,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:52,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:52,442 INFO L87 Difference]: Start difference. First operand 566 states and 918 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 18:49:52,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:52,622 INFO L93 Difference]: Finished difference Result 1336 states and 2193 transitions. [2024-11-06 18:49:52,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:52,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 97 [2024-11-06 18:49:52,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:52,626 INFO L225 Difference]: With dead ends: 1336 [2024-11-06 18:49:52,626 INFO L226 Difference]: Without dead ends: 778 [2024-11-06 18:49:52,627 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 18:49:52,627 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 35 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:52,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 271 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 18:49:52,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-11-06 18:49:52,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 766. [2024-11-06 18:49:52,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 765 states have (on average 1.461437908496732) internal successors, (1118), 765 states have internal predecessors, (1118), 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 18:49:52,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1118 transitions. [2024-11-06 18:49:52,647 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1118 transitions. Word has length 97 [2024-11-06 18:49:52,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:52,647 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 1118 transitions. [2024-11-06 18:49:52,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 18:49:52,648 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1118 transitions. [2024-11-06 18:49:52,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-06 18:49:52,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:52,649 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:49:52,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 18:49:52,650 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:52,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:52,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1496757484, now seen corresponding path program 1 times [2024-11-06 18:49:52,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:52,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678545913] [2024-11-06 18:49:52,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:52,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:52,733 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-06 18:49:52,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:52,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678545913] [2024-11-06 18:49:52,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678545913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:52,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:52,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:52,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829105923] [2024-11-06 18:49:52,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:52,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:52,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:52,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:52,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:52,736 INFO L87 Difference]: Start difference. First operand 766 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 18:49:52,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:52,927 INFO L93 Difference]: Finished difference Result 1653 states and 2450 transitions. [2024-11-06 18:49:52,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:52,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 97 [2024-11-06 18:49:52,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:52,934 INFO L225 Difference]: With dead ends: 1653 [2024-11-06 18:49:52,934 INFO L226 Difference]: Without dead ends: 895 [2024-11-06 18:49:52,936 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 18:49:52,937 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 35 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:52,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 270 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 18:49:52,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2024-11-06 18:49:52,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 859. [2024-11-06 18:49:52,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 858 states have (on average 1.456876456876457) internal successors, (1250), 858 states have internal predecessors, (1250), 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 18:49:52,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1250 transitions. [2024-11-06 18:49:52,968 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1250 transitions. Word has length 97 [2024-11-06 18:49:52,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:52,969 INFO L471 AbstractCegarLoop]: Abstraction has 859 states and 1250 transitions. [2024-11-06 18:49:52,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 18:49:52,969 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1250 transitions. [2024-11-06 18:49:52,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-06 18:49:52,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:52,973 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1] [2024-11-06 18:49:52,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 18:49:52,973 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:52,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:52,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1340556462, now seen corresponding path program 1 times [2024-11-06 18:49:52,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:52,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633117915] [2024-11-06 18:49:52,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:52,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:53,056 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-06 18:49:53,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:53,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633117915] [2024-11-06 18:49:53,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633117915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:53,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:53,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:53,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524542919] [2024-11-06 18:49:53,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:53,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:53,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:53,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:53,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:53,058 INFO L87 Difference]: Start difference. First operand 859 states and 1250 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:49:53,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:53,095 INFO L93 Difference]: Finished difference Result 1746 states and 2558 transitions. [2024-11-06 18:49:53,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:53,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-06 18:49:53,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:53,100 INFO L225 Difference]: With dead ends: 1746 [2024-11-06 18:49:53,100 INFO L226 Difference]: Without dead ends: 1153 [2024-11-06 18:49:53,101 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 18:49:53,102 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 111 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:53,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 484 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 18:49:53,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2024-11-06 18:49:53,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1153. [2024-11-06 18:49:53,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.4592013888888888) internal successors, (1681), 1152 states have internal predecessors, (1681), 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 18:49:53,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1681 transitions. [2024-11-06 18:49:53,126 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1681 transitions. Word has length 121 [2024-11-06 18:49:53,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:53,127 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1681 transitions. [2024-11-06 18:49:53,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:49:53,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1681 transitions. [2024-11-06 18:49:53,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-06 18:49:53,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:53,145 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1] [2024-11-06 18:49:53,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 18:49:53,145 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:53,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2057017556, now seen corresponding path program 1 times [2024-11-06 18:49:53,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:53,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54440418] [2024-11-06 18:49:53,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:53,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:53,198 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-06 18:49:53,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:53,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54440418] [2024-11-06 18:49:53,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54440418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:53,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:53,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:53,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073831902] [2024-11-06 18:49:53,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:53,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:53,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:53,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:53,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:53,200 INFO L87 Difference]: Start difference. First operand 1153 states and 1681 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 18:49:53,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:53,236 INFO L93 Difference]: Finished difference Result 2297 states and 3379 transitions. [2024-11-06 18:49:53,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:53,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 121 [2024-11-06 18:49:53,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:53,242 INFO L225 Difference]: With dead ends: 2297 [2024-11-06 18:49:53,242 INFO L226 Difference]: Without dead ends: 1410 [2024-11-06 18:49:53,243 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 18:49:53,244 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 113 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:53,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 485 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 18:49:53,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-06 18:49:53,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1410. [2024-11-06 18:49:53,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1409 states have (on average 1.4698367636621719) internal successors, (2071), 1409 states have internal predecessors, (2071), 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 18:49:53,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2071 transitions. [2024-11-06 18:49:53,273 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2071 transitions. Word has length 121 [2024-11-06 18:49:53,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:53,274 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 2071 transitions. [2024-11-06 18:49:53,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 18:49:53,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2071 transitions. [2024-11-06 18:49:53,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-06 18:49:53,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:53,278 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-06 18:49:53,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 18:49:53,278 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:53,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash -860101462, now seen corresponding path program 1 times [2024-11-06 18:49:53,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:53,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260247027] [2024-11-06 18:49:53,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:53,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:53,400 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-06 18:49:53,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:53,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260247027] [2024-11-06 18:49:53,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260247027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:53,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:53,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:53,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745518794] [2024-11-06 18:49:53,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:53,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:53,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:53,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:53,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:53,402 INFO L87 Difference]: Start difference. First operand 1410 states and 2071 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 18:49:53,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:53,583 INFO L93 Difference]: Finished difference Result 3017 states and 4490 transitions. [2024-11-06 18:49:53,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:53,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 225 [2024-11-06 18:49:53,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:53,591 INFO L225 Difference]: With dead ends: 3017 [2024-11-06 18:49:53,592 INFO L226 Difference]: Without dead ends: 1565 [2024-11-06 18:49:53,597 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 18:49:53,598 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 31 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:53,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 258 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 18:49:53,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2024-11-06 18:49:53,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2024-11-06 18:49:53,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 1.4392583120204603) internal successors, (2251), 1564 states have internal predecessors, (2251), 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 18:49:53,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2251 transitions. [2024-11-06 18:49:53,645 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2251 transitions. Word has length 225 [2024-11-06 18:49:53,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:53,646 INFO L471 AbstractCegarLoop]: Abstraction has 1565 states and 2251 transitions. [2024-11-06 18:49:53,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 18:49:53,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2251 transitions. [2024-11-06 18:49:53,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-06 18:49:53,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:53,652 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-06 18:49:53,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 18:49:53,652 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:53,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:53,656 INFO L85 PathProgramCache]: Analyzing trace with hash -482554043, now seen corresponding path program 1 times [2024-11-06 18:49:53,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:53,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597817589] [2024-11-06 18:49:53,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:53,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-06 18:49:53,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:53,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597817589] [2024-11-06 18:49:53,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597817589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:49:53,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230649065] [2024-11-06 18:49:53,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:53,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:49:53,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:49:53,826 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 18:49:53,828 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 18:49:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:53,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 18:49:53,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:49:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-06 18:49:54,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:49:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-06 18:49:54,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230649065] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:49:54,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:49:54,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-06 18:49:54,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924082267] [2024-11-06 18:49:54,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:49:54,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 18:49:54,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:54,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 18:49:54,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 18:49:54,179 INFO L87 Difference]: Start difference. First operand 1565 states and 2251 transitions. Second operand has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 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 18:49:54,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:54,984 INFO L93 Difference]: Finished difference Result 6035 states and 8671 transitions. [2024-11-06 18:49:54,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-06 18:49:54,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 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 253 [2024-11-06 18:49:54,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:55,002 INFO L225 Difference]: With dead ends: 6035 [2024-11-06 18:49:55,002 INFO L226 Difference]: Without dead ends: 4478 [2024-11-06 18:49:55,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-06 18:49:55,006 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 276 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:55,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1329 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 18:49:55,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4478 states. [2024-11-06 18:49:55,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4478 to 3398. [2024-11-06 18:49:55,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3398 states, 3397 states have (on average 1.40270827200471) internal successors, (4765), 3397 states have internal predecessors, (4765), 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 18:49:55,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3398 states to 3398 states and 4765 transitions. [2024-11-06 18:49:55,121 INFO L78 Accepts]: Start accepts. Automaton has 3398 states and 4765 transitions. Word has length 253 [2024-11-06 18:49:55,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:55,121 INFO L471 AbstractCegarLoop]: Abstraction has 3398 states and 4765 transitions. [2024-11-06 18:49:55,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 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 18:49:55,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3398 states and 4765 transitions. [2024-11-06 18:49:55,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-06 18:49:55,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:55,129 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-06 18:49:55,147 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 18:49:55,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-06 18:49:55,330 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:55,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:55,330 INFO L85 PathProgramCache]: Analyzing trace with hash -193734653, now seen corresponding path program 1 times [2024-11-06 18:49:55,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:55,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075869025] [2024-11-06 18:49:55,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:55,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:55,426 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-06 18:49:55,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:55,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075869025] [2024-11-06 18:49:55,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075869025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:55,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:55,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:55,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036627614] [2024-11-06 18:49:55,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:55,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:55,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:55,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:55,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:55,429 INFO L87 Difference]: Start difference. First operand 3398 states and 4765 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 18:49:55,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:55,521 INFO L93 Difference]: Finished difference Result 9681 states and 13694 transitions. [2024-11-06 18:49:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:55,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 253 [2024-11-06 18:49:55,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:55,537 INFO L225 Difference]: With dead ends: 9681 [2024-11-06 18:49:55,538 INFO L226 Difference]: Without dead ends: 4220 [2024-11-06 18:49:55,544 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 18:49:55,545 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 109 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:55,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 492 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 18:49:55,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4220 states. [2024-11-06 18:49:55,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4220 to 3918. [2024-11-06 18:49:55,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3918 states, 3917 states have (on average 1.4237937196834312) internal successors, (5577), 3917 states have internal predecessors, (5577), 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 18:49:55,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 5577 transitions. [2024-11-06 18:49:55,657 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 5577 transitions. Word has length 253 [2024-11-06 18:49:55,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:55,657 INFO L471 AbstractCegarLoop]: Abstraction has 3918 states and 5577 transitions. [2024-11-06 18:49:55,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 18:49:55,657 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 5577 transitions. [2024-11-06 18:49:55,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-06 18:49:55,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:55,664 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-06 18:49:55,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 18:49:55,664 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:55,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:55,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1163625151, now seen corresponding path program 1 times [2024-11-06 18:49:55,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:55,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393081316] [2024-11-06 18:49:55,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:55,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:55,756 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-11-06 18:49:55,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:55,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393081316] [2024-11-06 18:49:55,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393081316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:55,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:55,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:55,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892695011] [2024-11-06 18:49:55,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:55,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:55,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:55,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:55,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:55,757 INFO L87 Difference]: Start difference. First operand 3918 states and 5577 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 18:49:55,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:55,906 INFO L93 Difference]: Finished difference Result 7966 states and 11316 transitions. [2024-11-06 18:49:55,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:55,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 253 [2024-11-06 18:49:55,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:55,922 INFO L225 Difference]: With dead ends: 7966 [2024-11-06 18:49:55,922 INFO L226 Difference]: Without dead ends: 4056 [2024-11-06 18:49:55,927 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 18:49:55,927 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 9 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:55,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 272 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 18:49:55,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4056 states. [2024-11-06 18:49:56,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4056 to 4056. [2024-11-06 18:49:56,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4056 states, 4055 states have (on average 1.4167694204685573) internal successors, (5745), 4055 states have internal predecessors, (5745), 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 18:49:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4056 states to 4056 states and 5745 transitions. [2024-11-06 18:49:56,022 INFO L78 Accepts]: Start accepts. Automaton has 4056 states and 5745 transitions. Word has length 253 [2024-11-06 18:49:56,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:56,022 INFO L471 AbstractCegarLoop]: Abstraction has 4056 states and 5745 transitions. [2024-11-06 18:49:56,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 18:49:56,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4056 states and 5745 transitions. [2024-11-06 18:49:56,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-06 18:49:56,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:56,051 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2024-11-06 18:49:56,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-06 18:49:56,052 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:56,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:56,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1335839441, now seen corresponding path program 1 times [2024-11-06 18:49:56,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:56,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322306883] [2024-11-06 18:49:56,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:56,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:56,127 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-11-06 18:49:56,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:56,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322306883] [2024-11-06 18:49:56,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322306883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:56,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:56,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:56,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966658057] [2024-11-06 18:49:56,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:56,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:56,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:56,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:56,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:56,128 INFO L87 Difference]: Start difference. First operand 4056 states and 5745 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 18:49:56,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:56,279 INFO L93 Difference]: Finished difference Result 8454 states and 11940 transitions. [2024-11-06 18:49:56,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:56,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 273 [2024-11-06 18:49:56,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:56,295 INFO L225 Difference]: With dead ends: 8454 [2024-11-06 18:49:56,295 INFO L226 Difference]: Without dead ends: 4406 [2024-11-06 18:49:56,300 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 18:49:56,301 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 9 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:56,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 272 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 18:49:56,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4406 states. [2024-11-06 18:49:56,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4406 to 4406. [2024-11-06 18:49:56,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4406 states, 4405 states have (on average 1.3995459704880817) internal successors, (6165), 4405 states have internal predecessors, (6165), 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 18:49:56,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 6165 transitions. [2024-11-06 18:49:56,423 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 6165 transitions. Word has length 273 [2024-11-06 18:49:56,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:56,423 INFO L471 AbstractCegarLoop]: Abstraction has 4406 states and 6165 transitions. [2024-11-06 18:49:56,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 18:49:56,424 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 6165 transitions. [2024-11-06 18:49:56,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-06 18:49:56,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:56,431 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:49:56,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-06 18:49:56,432 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:56,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:56,432 INFO L85 PathProgramCache]: Analyzing trace with hash -257796221, now seen corresponding path program 1 times [2024-11-06 18:49:56,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:56,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597430108] [2024-11-06 18:49:56,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:56,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:56,525 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 493 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2024-11-06 18:49:56,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:56,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597430108] [2024-11-06 18:49:56,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597430108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:56,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:56,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:56,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978738168] [2024-11-06 18:49:56,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:56,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:56,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:56,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:56,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:56,526 INFO L87 Difference]: Start difference. First operand 4406 states and 6165 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 18:49:56,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:56,697 INFO L93 Difference]: Finished difference Result 9182 states and 12836 transitions. [2024-11-06 18:49:56,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:56,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 299 [2024-11-06 18:49:56,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:56,718 INFO L225 Difference]: With dead ends: 9182 [2024-11-06 18:49:56,719 INFO L226 Difference]: Without dead ends: 4784 [2024-11-06 18:49:56,724 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 18:49:56,725 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 9 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:56,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 272 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 18:49:56,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4784 states. [2024-11-06 18:49:56,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4784 to 4784. [2024-11-06 18:49:56,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4784 states, 4783 states have (on average 1.382605059586034) internal successors, (6613), 4783 states have internal predecessors, (6613), 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 18:49:56,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4784 states to 4784 states and 6613 transitions. [2024-11-06 18:49:56,860 INFO L78 Accepts]: Start accepts. Automaton has 4784 states and 6613 transitions. Word has length 299 [2024-11-06 18:49:56,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:56,861 INFO L471 AbstractCegarLoop]: Abstraction has 4784 states and 6613 transitions. [2024-11-06 18:49:56,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 18:49:56,861 INFO L276 IsEmpty]: Start isEmpty. Operand 4784 states and 6613 transitions. [2024-11-06 18:49:56,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-06 18:49:56,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:56,871 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:49:56,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-06 18:49:56,872 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:56,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:56,872 INFO L85 PathProgramCache]: Analyzing trace with hash 212293102, now seen corresponding path program 1 times [2024-11-06 18:49:56,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:56,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764873575] [2024-11-06 18:49:56,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:56,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:57,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-06 18:49:57,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:57,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764873575] [2024-11-06 18:49:57,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764873575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:57,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:57,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:57,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265887126] [2024-11-06 18:49:57,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:57,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:57,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:57,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:57,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:57,023 INFO L87 Difference]: Start difference. First operand 4784 states and 6613 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 18:49:57,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:57,193 INFO L93 Difference]: Finished difference Result 9966 states and 13788 transitions. [2024-11-06 18:49:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:57,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 322 [2024-11-06 18:49:57,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:57,206 INFO L225 Difference]: With dead ends: 9966 [2024-11-06 18:49:57,206 INFO L226 Difference]: Without dead ends: 5190 [2024-11-06 18:49:57,213 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 18:49:57,214 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 9 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:57,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 272 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 18:49:57,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5190 states. [2024-11-06 18:49:57,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5190 to 4391. [2024-11-06 18:49:57,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4390 states have (on average 1.3824601366742597) internal successors, (6069), 4390 states have internal predecessors, (6069), 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 18:49:57,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6069 transitions. [2024-11-06 18:49:57,337 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6069 transitions. Word has length 322 [2024-11-06 18:49:57,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:57,337 INFO L471 AbstractCegarLoop]: Abstraction has 4391 states and 6069 transitions. [2024-11-06 18:49:57,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 18:49:57,338 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6069 transitions. [2024-11-06 18:49:57,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-06 18:49:57,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:57,346 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:49:57,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-06 18:49:57,346 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:57,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:57,347 INFO L85 PathProgramCache]: Analyzing trace with hash -812160295, now seen corresponding path program 1 times [2024-11-06 18:49:57,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:57,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63790376] [2024-11-06 18:49:57,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:57,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:57,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2024-11-06 18:49:57,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:57,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63790376] [2024-11-06 18:49:57,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63790376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:57,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:49:57,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:49:57,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513562025] [2024-11-06 18:49:57,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:57,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:57,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:57,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:57,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:49:57,515 INFO L87 Difference]: Start difference. First operand 4391 states and 6069 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 18:49:57,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:57,612 INFO L93 Difference]: Finished difference Result 13143 states and 18162 transitions. [2024-11-06 18:49:57,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:57,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 354 [2024-11-06 18:49:57,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:57,650 INFO L225 Difference]: With dead ends: 13143 [2024-11-06 18:49:57,651 INFO L226 Difference]: Without dead ends: 8760 [2024-11-06 18:49:57,656 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 18:49:57,657 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 125 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:57,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 486 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 18:49:57,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8760 states. [2024-11-06 18:49:57,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8760 to 8575. [2024-11-06 18:49:57,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8575 states, 8574 states have (on average 1.385117797993935) internal successors, (11876), 8574 states have internal predecessors, (11876), 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 18:49:57,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8575 states to 8575 states and 11876 transitions. [2024-11-06 18:49:57,871 INFO L78 Accepts]: Start accepts. Automaton has 8575 states and 11876 transitions. Word has length 354 [2024-11-06 18:49:57,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:57,872 INFO L471 AbstractCegarLoop]: Abstraction has 8575 states and 11876 transitions. [2024-11-06 18:49:57,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 18:49:57,872 INFO L276 IsEmpty]: Start isEmpty. Operand 8575 states and 11876 transitions. [2024-11-06 18:49:57,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-06 18:49:57,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:57,884 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:49:57,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 18:49:57,884 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:57,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:57,885 INFO L85 PathProgramCache]: Analyzing trace with hash 209922624, now seen corresponding path program 1 times [2024-11-06 18:49:57,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:57,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307627256] [2024-11-06 18:49:57,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:57,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:58,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 871 proven. 26 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2024-11-06 18:49:58,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:58,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307627256] [2024-11-06 18:49:58,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307627256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:49:58,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307591625] [2024-11-06 18:49:58,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:58,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:49:58,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:49:58,060 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 18:49:58,062 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 18:49:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:58,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 18:49:58,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:49:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 680 proven. 0 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2024-11-06 18:49:58,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:49:58,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307591625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:49:58,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:49:58,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-06 18:49:58,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040105953] [2024-11-06 18:49:58,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:49:58,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:49:58,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:58,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:49:58,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:49:58,511 INFO L87 Difference]: Start difference. First operand 8575 states and 11876 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 18:49:58,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:49:58,601 INFO L93 Difference]: Finished difference Result 10751 states and 14913 transitions. [2024-11-06 18:49:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:49:58,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 355 [2024-11-06 18:49:58,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:49:58,622 INFO L225 Difference]: With dead ends: 10751 [2024-11-06 18:49:58,622 INFO L226 Difference]: Without dead ends: 8530 [2024-11-06 18:49:58,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:49:58,628 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 83 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 18:49:58,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 480 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 18:49:58,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8530 states. [2024-11-06 18:49:58,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8530 to 6140. [2024-11-06 18:49:58,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6140 states, 6139 states have (on average 1.3924091871640332) internal successors, (8548), 6139 states have internal predecessors, (8548), 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 18:49:58,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6140 states to 6140 states and 8548 transitions. [2024-11-06 18:49:58,838 INFO L78 Accepts]: Start accepts. Automaton has 6140 states and 8548 transitions. Word has length 355 [2024-11-06 18:49:58,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:49:58,839 INFO L471 AbstractCegarLoop]: Abstraction has 6140 states and 8548 transitions. [2024-11-06 18:49:58,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 18:49:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand 6140 states and 8548 transitions. [2024-11-06 18:49:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-11-06 18:49:58,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:49:58,855 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2024-11-06 18:49:58,873 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 18:49:59,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-06 18:49:59,056 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:49:59,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:49:59,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1965226690, now seen corresponding path program 1 times [2024-11-06 18:49:59,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:49:59,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763187985] [2024-11-06 18:49:59,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:59,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:49:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1251 proven. 26 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2024-11-06 18:49:59,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:49:59,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763187985] [2024-11-06 18:49:59,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763187985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:49:59,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194063608] [2024-11-06 18:49:59,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:49:59,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:49:59,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:49:59,278 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 18:49:59,280 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 18:49:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:49:59,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 18:49:59,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:49:59,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1251 proven. 26 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2024-11-06 18:49:59,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:49:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1251 proven. 26 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2024-11-06 18:49:59,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194063608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:49:59,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:49:59,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-06 18:49:59,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043212202] [2024-11-06 18:49:59,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:49:59,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 18:49:59,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:49:59,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 18:49:59,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 18:49:59,661 INFO L87 Difference]: Start difference. First operand 6140 states and 8548 transitions. Second operand has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 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 18:50:00,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:50:00,186 INFO L93 Difference]: Finished difference Result 13760 states and 19139 transitions. [2024-11-06 18:50:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 18:50:00,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 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) Word has length 417 [2024-11-06 18:50:00,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:50:00,203 INFO L225 Difference]: With dead ends: 13760 [2024-11-06 18:50:00,204 INFO L226 Difference]: Without dead ends: 7326 [2024-11-06 18:50:00,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 834 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-06 18:50:00,213 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 243 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 18:50:00,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 586 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 18:50:00,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7326 states. [2024-11-06 18:50:00,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7326 to 6032. [2024-11-06 18:50:00,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6032 states, 6031 states have (on average 1.3669374896368762) internal successors, (8244), 6031 states have internal predecessors, (8244), 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 18:50:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6032 states to 6032 states and 8244 transitions. [2024-11-06 18:50:00,355 INFO L78 Accepts]: Start accepts. Automaton has 6032 states and 8244 transitions. Word has length 417 [2024-11-06 18:50:00,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:50:00,356 INFO L471 AbstractCegarLoop]: Abstraction has 6032 states and 8244 transitions. [2024-11-06 18:50:00,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 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 18:50:00,356 INFO L276 IsEmpty]: Start isEmpty. Operand 6032 states and 8244 transitions. [2024-11-06 18:50:00,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2024-11-06 18:50:00,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:50:00,371 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 18:50:00,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 18:50:00,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:50:00,572 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:50:00,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:50:00,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1529804208, now seen corresponding path program 1 times [2024-11-06 18:50:00,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:50:00,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340619935] [2024-11-06 18:50:00,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:50:00,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:50:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:50:00,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3138 backedges. 1671 proven. 0 refuted. 0 times theorem prover too weak. 1467 trivial. 0 not checked. [2024-11-06 18:50:00,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:50:00,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340619935] [2024-11-06 18:50:00,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340619935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:50:00,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:50:00,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:50:00,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524843028] [2024-11-06 18:50:00,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:50:00,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:50:00,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:50:00,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:50:00,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:50:00,963 INFO L87 Difference]: Start difference. First operand 6032 states and 8244 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 18:50:01,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:50:01,137 INFO L93 Difference]: Finished difference Result 11052 states and 15168 transitions. [2024-11-06 18:50:01,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:50:01,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 509 [2024-11-06 18:50:01,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:50:01,151 INFO L225 Difference]: With dead ends: 11052 [2024-11-06 18:50:01,152 INFO L226 Difference]: Without dead ends: 6223 [2024-11-06 18:50:01,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 18:50:01,159 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 38 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:50:01,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 202 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 18:50:01,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6223 states. [2024-11-06 18:50:01,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6223 to 6223. [2024-11-06 18:50:01,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6223 states, 6222 states have (on average 1.3672452587592414) internal successors, (8507), 6222 states have internal predecessors, (8507), 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 18:50:01,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6223 states to 6223 states and 8507 transitions. [2024-11-06 18:50:01,285 INFO L78 Accepts]: Start accepts. Automaton has 6223 states and 8507 transitions. Word has length 509 [2024-11-06 18:50:01,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:50:01,286 INFO L471 AbstractCegarLoop]: Abstraction has 6223 states and 8507 transitions. [2024-11-06 18:50:01,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 18:50:01,286 INFO L276 IsEmpty]: Start isEmpty. Operand 6223 states and 8507 transitions. [2024-11-06 18:50:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2024-11-06 18:50:01,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:50:01,301 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 18:50:01,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-06 18:50:01,301 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:50:01,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:50:01,302 INFO L85 PathProgramCache]: Analyzing trace with hash -329051126, now seen corresponding path program 1 times [2024-11-06 18:50:01,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:50:01,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049984712] [2024-11-06 18:50:01,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:50:01,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:50:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:50:01,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3171 backedges. 1694 proven. 0 refuted. 0 times theorem prover too weak. 1477 trivial. 0 not checked. [2024-11-06 18:50:01,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:50:01,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049984712] [2024-11-06 18:50:01,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049984712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:50:01,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:50:01,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:50:01,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157626958] [2024-11-06 18:50:01,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:50:01,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:50:01,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:50:01,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:50:01,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:50:01,499 INFO L87 Difference]: Start difference. First operand 6223 states and 8507 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 18:50:01,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:50:01,670 INFO L93 Difference]: Finished difference Result 12325 states and 16786 transitions. [2024-11-06 18:50:01,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:50:01,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 511 [2024-11-06 18:50:01,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:50:01,684 INFO L225 Difference]: With dead ends: 12325 [2024-11-06 18:50:01,684 INFO L226 Difference]: Without dead ends: 6121 [2024-11-06 18:50:01,691 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 18:50:01,694 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 10 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:50:01,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 268 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 18:50:01,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6121 states. [2024-11-06 18:50:01,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6121 to 6121. [2024-11-06 18:50:01,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6121 states, 6120 states have (on average 1.3392156862745097) internal successors, (8196), 6120 states have internal predecessors, (8196), 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 18:50:01,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6121 states to 6121 states and 8196 transitions. [2024-11-06 18:50:01,817 INFO L78 Accepts]: Start accepts. Automaton has 6121 states and 8196 transitions. Word has length 511 [2024-11-06 18:50:01,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:50:01,818 INFO L471 AbstractCegarLoop]: Abstraction has 6121 states and 8196 transitions. [2024-11-06 18:50:01,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 18:50:01,818 INFO L276 IsEmpty]: Start isEmpty. Operand 6121 states and 8196 transitions. [2024-11-06 18:50:01,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-06 18:50:01,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:50:01,834 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 16, 14, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 18:50:01,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-06 18:50:01,835 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:50:01,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:50:01,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1911316890, now seen corresponding path program 1 times [2024-11-06 18:50:01,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:50:01,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127837480] [2024-11-06 18:50:01,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:50:01,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:50:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:50:02,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3204 backedges. 1744 proven. 206 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2024-11-06 18:50:02,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:50:02,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127837480] [2024-11-06 18:50:02,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127837480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:50:02,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989877205] [2024-11-06 18:50:02,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:50:02,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:50:02,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:50:02,309 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 18:50:02,311 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 18:50:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:50:02,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 18:50:02,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:50:03,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3204 backedges. 1792 proven. 239 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2024-11-06 18:50:03,966 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:50:05,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3204 backedges. 1887 proven. 144 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2024-11-06 18:50:05,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989877205] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:50:05,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:50:05,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-06 18:50:05,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226671702] [2024-11-06 18:50:05,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:50:05,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-06 18:50:05,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:50:05,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-06 18:50:05,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-06 18:50:05,124 INFO L87 Difference]: Start difference. First operand 6121 states and 8196 transitions. Second operand has 11 states, 11 states have (on average 38.0) internal successors, (418), 11 states have internal predecessors, (418), 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 18:50:07,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:50:07,240 INFO L93 Difference]: Finished difference Result 24654 states and 32955 transitions. [2024-11-06 18:50:07,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-06 18:50:07,241 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 38.0) internal successors, (418), 11 states have internal predecessors, (418), 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 513 [2024-11-06 18:50:07,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:50:07,278 INFO L225 Difference]: With dead ends: 24654 [2024-11-06 18:50:07,278 INFO L226 Difference]: Without dead ends: 18487 [2024-11-06 18:50:07,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1055 GetRequests, 1033 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2024-11-06 18:50:07,289 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 856 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 1990 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-06 18:50:07,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1550 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1990 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-06 18:50:07,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18487 states. [2024-11-06 18:50:07,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18487 to 17889. [2024-11-06 18:50:07,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17889 states, 17888 states have (on average 1.3000894454382828) internal successors, (23256), 17888 states have internal predecessors, (23256), 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 18:50:07,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17889 states to 17889 states and 23256 transitions. [2024-11-06 18:50:07,679 INFO L78 Accepts]: Start accepts. Automaton has 17889 states and 23256 transitions. Word has length 513 [2024-11-06 18:50:07,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:50:07,679 INFO L471 AbstractCegarLoop]: Abstraction has 17889 states and 23256 transitions. [2024-11-06 18:50:07,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 38.0) internal successors, (418), 11 states have internal predecessors, (418), 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 18:50:07,679 INFO L276 IsEmpty]: Start isEmpty. Operand 17889 states and 23256 transitions. [2024-11-06 18:50:07,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2024-11-06 18:50:07,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:50:07,709 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 18, 16, 16, 14, 14, 12, 12, 10, 10, 10, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 18:50:07,726 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 18:50:07,909 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,SelfDestructingSolverStorable20 [2024-11-06 18:50:07,910 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:50:07,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:50:07,910 INFO L85 PathProgramCache]: Analyzing trace with hash 944376353, now seen corresponding path program 2 times [2024-11-06 18:50:07,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:50:07,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395983701] [2024-11-06 18:50:07,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:50:07,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:50:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:50:08,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4078 backedges. 1321 proven. 16 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2024-11-06 18:50:08,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:50:08,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395983701] [2024-11-06 18:50:08,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395983701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:50:08,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100332652] [2024-11-06 18:50:08,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 18:50:08,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:50:08,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:50:08,130 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 18:50:08,131 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 18:50:08,318 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-06 18:50:08,318 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 18:50:08,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 18:50:08,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:50:08,483 INFO L134 CoverageAnalysis]: Checked inductivity of 4078 backedges. 1321 proven. 16 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2024-11-06 18:50:08,487 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:50:08,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4078 backedges. 1321 proven. 16 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2024-11-06 18:50:08,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100332652] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:50:08,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:50:08,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-06 18:50:08,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500806104] [2024-11-06 18:50:08,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:50:08,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 18:50:08,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:50:08,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 18:50:08,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-06 18:50:08,567 INFO L87 Difference]: Start difference. First operand 17889 states and 23256 transitions. Second operand has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 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 18:50:09,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:50:09,236 INFO L93 Difference]: Finished difference Result 26111 states and 33809 transitions. [2024-11-06 18:50:09,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-06 18:50:09,237 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 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 583 [2024-11-06 18:50:09,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:50:09,239 INFO L225 Difference]: With dead ends: 26111 [2024-11-06 18:50:09,239 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 18:50:09,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 1166 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-06 18:50:09,255 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 224 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 18:50:09,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1136 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 18:50:09,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 18:50:09,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 18:50:09,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 18:50:09,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 18:50:09,257 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 583 [2024-11-06 18:50:09,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:50:09,257 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 18:50:09,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 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 18:50:09,257 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 18:50:09,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 18:50:09,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 18:50:09,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-06 18:50:09,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-06 18:50:09,463 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:50:09,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 18:50:15,945 WARN L286 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 702 DAG size of output: 517 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-06 18:50:19,402 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 18:50:19,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 06:50:19 BoogieIcfgContainer [2024-11-06 18:50:19,439 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 18:50:19,439 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 18:50:19,439 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 18:50:19,439 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 18:50:19,440 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:49:50" (3/4) ... [2024-11-06 18:50:19,445 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-06 18:50:19,459 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-06 18:50:19,460 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-06 18:50:19,463 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-06 18:50:19,464 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-06 18:50:19,592 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 18:50:19,592 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-06 18:50:19,592 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 18:50:19,593 INFO L158 Benchmark]: Toolchain (without parser) took 29974.83ms. Allocated memory was 100.7MB in the beginning and 687.9MB in the end (delta: 587.2MB). Free memory was 76.6MB in the beginning and 485.5MB in the end (delta: -408.8MB). Peak memory consumption was 177.7MB. Max. memory is 16.1GB. [2024-11-06 18:50:19,594 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 18:50:19,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.64ms. Allocated memory is still 100.7MB. Free memory was 76.5MB in the beginning and 60.9MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-06 18:50:19,594 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.66ms. Allocated memory is still 100.7MB. Free memory was 60.8MB in the beginning and 58.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 18:50:19,595 INFO L158 Benchmark]: Boogie Preprocessor took 59.02ms. Allocated memory is still 100.7MB. Free memory was 58.2MB in the beginning and 55.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 18:50:19,595 INFO L158 Benchmark]: RCFGBuilder took 696.98ms. Allocated memory is still 100.7MB. Free memory was 55.7MB in the beginning and 57.0MB in the end (delta: -1.3MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2024-11-06 18:50:19,595 INFO L158 Benchmark]: TraceAbstraction took 28663.82ms. Allocated memory was 100.7MB in the beginning and 687.9MB in the end (delta: 587.2MB). Free memory was 56.2MB in the beginning and 498.1MB in the end (delta: -441.9MB). Peak memory consumption was 480.6MB. Max. memory is 16.1GB. [2024-11-06 18:50:19,595 INFO L158 Benchmark]: Witness Printer took 153.14ms. Allocated memory is still 687.9MB. Free memory was 498.1MB in the beginning and 485.5MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 18:50:19,596 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.64ms. Allocated memory is still 100.7MB. Free memory was 76.5MB in the beginning and 60.9MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.66ms. Allocated memory is still 100.7MB. Free memory was 60.8MB in the beginning and 58.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.02ms. Allocated memory is still 100.7MB. Free memory was 58.2MB in the beginning and 55.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 696.98ms. Allocated memory is still 100.7MB. Free memory was 55.7MB in the beginning and 57.0MB in the end (delta: -1.3MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28663.82ms. Allocated memory was 100.7MB in the beginning and 687.9MB in the end (delta: 587.2MB). Free memory was 56.2MB in the beginning and 498.1MB in the end (delta: -441.9MB). Peak memory consumption was 480.6MB. Max. memory is 16.1GB. * Witness Printer took 153.14ms. Allocated memory is still 687.9MB. Free memory was 498.1MB in the beginning and 485.5MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 680]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 138 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.6s, OverallIterations: 22, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2648 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2648 mSDsluCounter, 10628 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5395 mSDsCounter, 444 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5710 IncrementalHoareTripleChecker+Invalid, 6154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 444 mSolverCounterUnsat, 5233 mSDtfsCounter, 5710 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3996 GetRequests, 3931 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17889occurred in iteration=21, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 22 MinimizatonAttempts, 6696 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 7886 NumberOfCodeBlocks, 7886 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 9621 ConstructedInterpolants, 0 QuantifiedInterpolants, 19597 SizeOfPredicates, 5 NumberOfNonLiveVariables, 3341 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 31 InterpolantComputations, 18 PerfectInterpolantSequences, 43653/44442 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (8466 == s__state)) && (2 == blastFlag)) && (8497 <= s__s3__tmp__next_state___0)) && (s__s3__tmp__next_state___0 <= 8576)) || ((((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (blastFlag == 1)) && (s__state <= 8448)) && (8497 <= s__s3__tmp__next_state___0)) && (s__s3__tmp__next_state___0 <= 8576))) || ((blastFlag == 1) && ((1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648))) || (((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4249)))) || ((((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (8673 != s__state)) && (3 == blastFlag)) && (s__s3__tmp__next_state___0 <= 8576)) && (8656 <= s__state))) || (((((2 == blastFlag) && (8497 <= s__s3__tmp__next_state___0)) && ((((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) / 2147483648) : ((((long long) ag_X + ag_Y) / 2147483648) - 1)) * 4294967296) + s__state) + 4294967296) == (((long long) 2 * ag_X) + ((long long) 2 * ag_Y))) && (1073741824 <= ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) || (((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) / 2147483648) : ((((long long) ag_X + ag_Y) / 2147483648) - 1)) * 4294967296) + s__state) == (((long long) 2 * ag_X) + ((long long) 2 * ag_Y))))) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8655))) || ((((3 == blastFlag) && (8640 <= s__s3__tmp__next_state___0)) && (8640 <= s__state)) && (0 != s__hit))) || ((((s__s3__tmp__next_state___0 <= 8495) && (s__state <= 8496)) && (2 == blastFlag)) && ((((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) / 2147483648) : ((((long long) ag_X + ag_Y) / 2147483648) - 1)) * 4294967296) + s__state) + 4294967296) == (((long long) 2 * ag_X) + ((long long) 2 * ag_Y))) && (1073741824 <= ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) || (((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) / 2147483648) : ((((long long) ag_X + ag_Y) / 2147483648) - 1)) * 4294967296) + s__state) == (((long long) 2 * ag_X) + ((long long) 2 * ag_Y)))))) || ((2 == blastFlag) && (0 != s__hit))) || ((((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (2 == blastFlag)) && (8640 <= s__state)) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8655))) || ((((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (2 == blastFlag)) && (s__state <= 8448)) && (8497 <= s__s3__tmp__next_state___0)) && (s__s3__tmp__next_state___0 <= 8576))) || ((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (2 == blastFlag)) && (8544 == s__state))) || (((blastFlag == 1) && (s__state <= 8448)) && (3 == s__s3__tmp__next_state___0))) || ((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (8466 == s__state)) && (blastFlag == 1))) || (((((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (2 == blastFlag)) && (8497 <= s__s3__tmp__next_state___0)) && (8497 <= s__state)) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8576))) || ((((8673 != s__state) && (3 == blastFlag)) && (0 != s__hit)) && (8656 <= s__state))) || (((((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (2 == blastFlag)) && (8497 <= s__s3__tmp__next_state___0)) && (8512 <= s__state)) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8655))) || (((s__state == 8528) && ((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648))))) && (2 == blastFlag))) || ((((s__s3__tmp__next_state___0 <= 8495) && (2 == blastFlag)) && (s__state <= 8495)) && ((1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648))) || (((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4249)))) || ((((3 == blastFlag) && (8640 <= s__s3__tmp__next_state___0)) && (s__state <= 8448)) && (0 != s__hit))) || (((((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (8673 != s__state)) && (2 == blastFlag)) && (s__state != 8672)) && (s__s3__tmp__next_state___0 <= 8576)) && (8656 <= s__state))) || (((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (blastFlag == 1)) && (8512 <= s__state)) && (s__state <= 8655))) || ((blastFlag == 1) && (((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) / 2147483648) : ((((long long) ag_X + ag_Y) / 2147483648) - 1)) * 4294967296) + s__state) == (((long long) 2 * ag_X) + ((long long) 2 * ag_Y))))) || ((blastFlag == 1) && (0 != s__hit))) || ((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (2 == blastFlag)) && (8560 == s__state))) || ((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (2 == blastFlag)) && (s__state == 8512))) || (blastFlag == 0)) || (((((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (blastFlag == 1)) && (8497 <= s__s3__tmp__next_state___0)) && (8497 <= s__state)) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8576))) || (((8673 != s__state) && (blastFlag == 1)) && (8656 <= s__state))) || ((((((((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)) < 4328) || (1073741823 < ((((long long) ag_X + ag_Y) >= 0) ? (((long long) ag_X + ag_Y) % 2147483648) : ((((long long) ag_X + ag_Y) % 2147483648) + 2147483648)))) && (3 == blastFlag)) && (s__state <= 8448)) && (3 == s__s3__tmp__next_state___0)) && (0 == s__hit))) RESULT: Ultimate proved your program to be correct! [2024-11-06 18:50:19,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE