./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.15.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/combinations/pc_sfifo_2.cil-1+token_ring.15.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', 'dc8dc9bdb034e5a733c81076f9e42c36caa1eb5cb68a77287d3420bd964c5f5a'] 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/combinations/pc_sfifo_2.cil-1+token_ring.15.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 dc8dc9bdb034e5a733c81076f9e42c36caa1eb5cb68a77287d3420bd964c5f5a --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:46:38,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:46:38,735 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:46:38,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:46:38,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:46:38,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:46:38,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:46:38,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:46:38,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:46:38,765 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:46:38,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:46:38,765 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:46:38,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:46:38,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:46:38,766 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:46:38,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:46:38,766 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:46:38,766 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:46:38,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:46:38,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:46:38,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:46:38,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:46:38,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:46:38,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:46:38,768 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:46:38,768 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:46:38,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:46:38,768 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:46:38,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:46:38,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:46:38,768 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:46:38,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:46:38,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:46:38,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:46:38,769 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:46:38,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:46:38,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:46:38,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:46:38,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:46:38,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:46:38,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:46:38,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:46:38,770 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 -> dc8dc9bdb034e5a733c81076f9e42c36caa1eb5cb68a77287d3420bd964c5f5a [2024-11-07 01:46:38,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:46:38,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:46:38,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:46:38,981 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:46:38,982 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:46:38,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.15.cil.c [2024-11-07 01:46:40,113 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:46:40,334 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:46:40,335 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.15.cil.c [2024-11-07 01:46:40,348 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/975a44d9d/e624f6cdd8564677981467ec93f154c1/FLAGc9ac1bb41 [2024-11-07 01:46:40,675 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/975a44d9d/e624f6cdd8564677981467ec93f154c1 [2024-11-07 01:46:40,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:46:40,677 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:46:40,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:46:40,678 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:46:40,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:46:40,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:46:40" (1/1) ... [2024-11-07 01:46:40,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b56f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:40, skipping insertion in model container [2024-11-07 01:46:40,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:46:40" (1/1) ... [2024-11-07 01:46:40,714 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:46:40,815 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/combinations/pc_sfifo_2.cil-1+token_ring.15.cil.c[914,927] [2024-11-07 01:46:40,854 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/combinations/pc_sfifo_2.cil-1+token_ring.15.cil.c[7115,7128] [2024-11-07 01:46:40,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:46:40,952 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:46:40,959 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/combinations/pc_sfifo_2.cil-1+token_ring.15.cil.c[914,927] [2024-11-07 01:46:40,969 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/combinations/pc_sfifo_2.cil-1+token_ring.15.cil.c[7115,7128] [2024-11-07 01:46:41,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:46:41,035 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:46:41,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41 WrapperNode [2024-11-07 01:46:41,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:46:41,036 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:46:41,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:46:41,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:46:41,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (1/1) ... [2024-11-07 01:46:41,051 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (1/1) ... [2024-11-07 01:46:41,082 INFO L138 Inliner]: procedures = 79, calls = 97, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 1132 [2024-11-07 01:46:41,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:46:41,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:46:41,083 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:46:41,083 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:46:41,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (1/1) ... [2024-11-07 01:46:41,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (1/1) ... [2024-11-07 01:46:41,095 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (1/1) ... [2024-11-07 01:46:41,109 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]. [2024-11-07 01:46:41,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (1/1) ... [2024-11-07 01:46:41,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (1/1) ... [2024-11-07 01:46:41,125 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (1/1) ... [2024-11-07 01:46:41,135 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (1/1) ... [2024-11-07 01:46:41,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (1/1) ... [2024-11-07 01:46:41,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (1/1) ... [2024-11-07 01:46:41,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:46:41,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:46:41,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:46:41,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:46:41,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (1/1) ... [2024-11-07 01:46:41,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:46:41,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:46:41,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 01:46:41,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 01:46:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:46:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:46:41,193 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:46:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-07 01:46:41,194 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-07 01:46:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-07 01:46:41,194 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-07 01:46:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-07 01:46:41,194 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-07 01:46:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-07 01:46:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-07 01:46:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-07 01:46:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-07 01:46:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-07 01:46:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-07 01:46:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-07 01:46:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-07 01:46:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-07 01:46:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-07 01:46:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-07 01:46:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-07 01:46:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-07 01:46:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-07 01:46:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:46:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-07 01:46:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-07 01:46:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-07 01:46:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-07 01:46:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:46:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:46:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-07 01:46:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-07 01:46:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-07 01:46:41,197 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-07 01:46:41,289 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:46:41,291 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:46:42,131 INFO L? ?]: Removed 137 outVars from TransFormulas that were not future-live. [2024-11-07 01:46:42,131 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:46:42,150 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:46:42,154 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-07 01:46:42,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:46:42 BoogieIcfgContainer [2024-11-07 01:46:42,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:46:42,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:46:42,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:46:42,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:46:42,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:46:40" (1/3) ... [2024-11-07 01:46:42,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27befe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:46:42, skipping insertion in model container [2024-11-07 01:46:42,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:41" (2/3) ... [2024-11-07 01:46:42,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27befe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:46:42, skipping insertion in model container [2024-11-07 01:46:42,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:46:42" (3/3) ... [2024-11-07 01:46:42,162 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.15.cil.c [2024-11-07 01:46:42,171 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:46:42,171 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:46:42,212 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:46:42,219 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;@671de833, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:46:42,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:46:42,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 528 states, 467 states have (on average 1.6274089935760172) internal successors, (760), 475 states have internal predecessors, (760), 43 states have call successors, (43), 15 states have call predecessors, (43), 15 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-07 01:46:42,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:42,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:42,235 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:42,235 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:42,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:42,239 INFO L85 PathProgramCache]: Analyzing trace with hash -34087819, now seen corresponding path program 1 times [2024-11-07 01:46:42,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:42,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277985657] [2024-11-07 01:46:42,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:42,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:42,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:42,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277985657] [2024-11-07 01:46:42,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277985657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:42,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:42,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:46:42,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21995212] [2024-11-07 01:46:42,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:42,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:46:42,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:42,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:46:42,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:46:42,706 INFO L87 Difference]: Start difference. First operand has 528 states, 467 states have (on average 1.6274089935760172) internal successors, (760), 475 states have internal predecessors, (760), 43 states have call successors, (43), 15 states have call predecessors, (43), 15 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:43,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:43,904 INFO L93 Difference]: Finished difference Result 1161 states and 1848 transitions. [2024-11-07 01:46:43,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:46:43,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-07 01:46:43,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:43,918 INFO L225 Difference]: With dead ends: 1161 [2024-11-07 01:46:43,918 INFO L226 Difference]: Without dead ends: 652 [2024-11-07 01:46:43,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:46:43,927 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 1657 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:43,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 1983 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:46:43,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2024-11-07 01:46:43,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 613. [2024-11-07 01:46:43,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 535 states have (on average 1.519626168224299) internal successors, (813), 542 states have internal predecessors, (813), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2024-11-07 01:46:44,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 922 transitions. [2024-11-07 01:46:44,006 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 922 transitions. Word has length 65 [2024-11-07 01:46:44,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:44,006 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 922 transitions. [2024-11-07 01:46:44,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:44,007 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 922 transitions. [2024-11-07 01:46:44,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:44,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:44,010 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:44,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:46:44,011 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:44,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:44,012 INFO L85 PathProgramCache]: Analyzing trace with hash 369698132, now seen corresponding path program 1 times [2024-11-07 01:46:44,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:44,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711283886] [2024-11-07 01:46:44,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:44,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:44,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:44,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711283886] [2024-11-07 01:46:44,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711283886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:44,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:44,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:46:44,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023460204] [2024-11-07 01:46:44,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:44,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:46:44,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:44,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:46:44,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:44,182 INFO L87 Difference]: Start difference. First operand 613 states and 922 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:45,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:45,324 INFO L93 Difference]: Finished difference Result 825 states and 1213 transitions. [2024-11-07 01:46:45,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:46:45,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-07 01:46:45,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:45,331 INFO L225 Difference]: With dead ends: 825 [2024-11-07 01:46:45,332 INFO L226 Difference]: Without dead ends: 648 [2024-11-07 01:46:45,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-07 01:46:45,333 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 691 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 2197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:45,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 3166 Invalid, 2197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2104 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:46:45,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-11-07 01:46:45,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 618. [2024-11-07 01:46:45,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 539 states have (on average 1.5139146567717996) internal successors, (816), 546 states have internal predecessors, (816), 54 states have call successors, (54), 22 states have call predecessors, (54), 23 states have return successors, (56), 52 states have call predecessors, (56), 50 states have call successors, (56) [2024-11-07 01:46:45,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 926 transitions. [2024-11-07 01:46:45,371 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 926 transitions. Word has length 65 [2024-11-07 01:46:45,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:45,371 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 926 transitions. [2024-11-07 01:46:45,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:45,371 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 926 transitions. [2024-11-07 01:46:45,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:45,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:45,376 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:45,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:46:45,376 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:45,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:45,376 INFO L85 PathProgramCache]: Analyzing trace with hash -659661166, now seen corresponding path program 1 times [2024-11-07 01:46:45,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:45,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615520569] [2024-11-07 01:46:45,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:45,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:45,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:45,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615520569] [2024-11-07 01:46:45,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615520569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:45,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:45,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:46:45,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983045071] [2024-11-07 01:46:45,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:45,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:46:45,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:45,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:46:45,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:45,558 INFO L87 Difference]: Start difference. First operand 618 states and 926 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-07 01:46:47,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:47,205 INFO L93 Difference]: Finished difference Result 1792 states and 2518 transitions. [2024-11-07 01:46:47,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-07 01:46:47,206 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-07 01:46:47,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:47,213 INFO L225 Difference]: With dead ends: 1792 [2024-11-07 01:46:47,213 INFO L226 Difference]: Without dead ends: 1610 [2024-11-07 01:46:47,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 01:46:47,215 INFO L432 NwaCegarLoop]: 569 mSDtfsCounter, 2839 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2855 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:47,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2855 Valid, 2783 Invalid, 2475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:46:47,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1610 states. [2024-11-07 01:46:47,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1610 to 1368. [2024-11-07 01:46:47,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1132 states have (on average 1.4151943462897527) internal successors, (1602), 1149 states have internal predecessors, (1602), 132 states have call successors, (132), 90 states have call predecessors, (132), 102 states have return successors, (169), 131 states have call predecessors, (169), 128 states have call successors, (169) [2024-11-07 01:46:47,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1903 transitions. [2024-11-07 01:46:47,301 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1903 transitions. Word has length 65 [2024-11-07 01:46:47,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:47,303 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 1903 transitions. [2024-11-07 01:46:47,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-07 01:46:47,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1903 transitions. [2024-11-07 01:46:47,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:47,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:47,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:47,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:46:47,305 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:47,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:47,306 INFO L85 PathProgramCache]: Analyzing trace with hash 391787923, now seen corresponding path program 1 times [2024-11-07 01:46:47,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:47,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976336491] [2024-11-07 01:46:47,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:47,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:47,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:47,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976336491] [2024-11-07 01:46:47,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976336491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:47,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:47,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:46:47,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957075642] [2024-11-07 01:46:47,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:47,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:46:47,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:47,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:46:47,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:47,469 INFO L87 Difference]: Start difference. First operand 1368 states and 1903 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:48,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:48,442 INFO L93 Difference]: Finished difference Result 2494 states and 3390 transitions. [2024-11-07 01:46:48,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 01:46:48,443 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-07 01:46:48,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:48,452 INFO L225 Difference]: With dead ends: 2494 [2024-11-07 01:46:48,453 INFO L226 Difference]: Without dead ends: 1562 [2024-11-07 01:46:48,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:46:48,456 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 1032 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 2800 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:48,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 2800 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 2030 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 01:46:48,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2024-11-07 01:46:48,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1398. [2024-11-07 01:46:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1156 states have (on average 1.4013840830449826) internal successors, (1620), 1173 states have internal predecessors, (1620), 132 states have call successors, (132), 90 states have call predecessors, (132), 108 states have return successors, (177), 137 states have call predecessors, (177), 128 states have call successors, (177) [2024-11-07 01:46:48,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1929 transitions. [2024-11-07 01:46:48,513 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1929 transitions. Word has length 65 [2024-11-07 01:46:48,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:48,514 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 1929 transitions. [2024-11-07 01:46:48,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:48,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1929 transitions. [2024-11-07 01:46:48,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:48,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:48,515 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:48,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:46:48,515 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:48,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:48,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1777991317, now seen corresponding path program 1 times [2024-11-07 01:46:48,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:48,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709952076] [2024-11-07 01:46:48,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:48,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:48,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:48,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709952076] [2024-11-07 01:46:48,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709952076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:48,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:48,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:46:48,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884463941] [2024-11-07 01:46:48,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:48,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:46:48,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:48,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:46:48,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:46:48,642 INFO L87 Difference]: Start difference. First operand 1398 states and 1929 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:49,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:49,678 INFO L93 Difference]: Finished difference Result 3057 states and 4082 transitions. [2024-11-07 01:46:49,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 01:46:49,681 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-07 01:46:49,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:49,689 INFO L225 Difference]: With dead ends: 3057 [2024-11-07 01:46:49,689 INFO L226 Difference]: Without dead ends: 2097 [2024-11-07 01:46:49,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-07 01:46:49,693 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 1551 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 2304 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:49,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 2304 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 01:46:49,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2097 states. [2024-11-07 01:46:49,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2097 to 1889. [2024-11-07 01:46:49,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1543 states have (on average 1.370706416072586) internal successors, (2115), 1572 states have internal predecessors, (2115), 182 states have call successors, (182), 131 states have call predecessors, (182), 162 states have return successors, (271), 189 states have call predecessors, (271), 178 states have call successors, (271) [2024-11-07 01:46:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2568 transitions. [2024-11-07 01:46:49,783 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2568 transitions. Word has length 65 [2024-11-07 01:46:49,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:49,783 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 2568 transitions. [2024-11-07 01:46:49,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:49,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2568 transitions. [2024-11-07 01:46:49,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:49,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:49,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:49,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:46:49,785 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:49,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:49,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1643977811, now seen corresponding path program 1 times [2024-11-07 01:46:49,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:49,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087827249] [2024-11-07 01:46:49,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:49,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:49,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:49,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:49,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:49,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:49,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:49,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:49,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:49,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:49,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:49,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087827249] [2024-11-07 01:46:49,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087827249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:49,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:49,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:49,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327858382] [2024-11-07 01:46:49,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:49,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:49,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:49,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:49,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:49,879 INFO L87 Difference]: Start difference. First operand 1889 states and 2568 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:50,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:50,569 INFO L93 Difference]: Finished difference Result 4964 states and 6571 transitions. [2024-11-07 01:46:50,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 01:46:50,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-07 01:46:50,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:50,582 INFO L225 Difference]: With dead ends: 4964 [2024-11-07 01:46:50,582 INFO L226 Difference]: Without dead ends: 3520 [2024-11-07 01:46:50,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-07 01:46:50,585 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 2280 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:50,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 1194 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:46:50,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3520 states. [2024-11-07 01:46:50,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3520 to 3272. [2024-11-07 01:46:50,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3272 states, 2615 states have (on average 1.3170172084130018) internal successors, (3444), 2671 states have internal predecessors, (3444), 334 states have call successors, (334), 254 states have call predecessors, (334), 321 states have return successors, (557), 353 states have call predecessors, (557), 330 states have call successors, (557) [2024-11-07 01:46:50,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3272 states to 3272 states and 4335 transitions. [2024-11-07 01:46:50,769 INFO L78 Accepts]: Start accepts. Automaton has 3272 states and 4335 transitions. Word has length 65 [2024-11-07 01:46:50,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:50,771 INFO L471 AbstractCegarLoop]: Abstraction has 3272 states and 4335 transitions. [2024-11-07 01:46:50,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:50,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3272 states and 4335 transitions. [2024-11-07 01:46:50,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-07 01:46:50,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:50,774 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:50,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:46:50,774 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:50,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:50,775 INFO L85 PathProgramCache]: Analyzing trace with hash 106133636, now seen corresponding path program 1 times [2024-11-07 01:46:50,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:50,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165419242] [2024-11-07 01:46:50,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:50,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:50,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:50,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165419242] [2024-11-07 01:46:50,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165419242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:50,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:50,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:50,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566331130] [2024-11-07 01:46:50,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:50,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:50,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:50,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:50,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:50,842 INFO L87 Difference]: Start difference. First operand 3272 states and 4335 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:51,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:51,612 INFO L93 Difference]: Finished difference Result 8294 states and 10897 transitions. [2024-11-07 01:46:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:46:51,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-07 01:46:51,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:51,631 INFO L225 Difference]: With dead ends: 8294 [2024-11-07 01:46:51,631 INFO L226 Difference]: Without dead ends: 5446 [2024-11-07 01:46:51,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:46:51,637 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 1249 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:51,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1258 Valid, 1574 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:46:51,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5446 states. [2024-11-07 01:46:51,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5446 to 4966. [2024-11-07 01:46:51,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4966 states, 3906 states have (on average 1.2944188428059396) internal successors, (5056), 3975 states have internal predecessors, (5056), 532 states have call successors, (532), 428 states have call predecessors, (532), 526 states have return successors, (892), 569 states have call predecessors, (892), 528 states have call successors, (892) [2024-11-07 01:46:51,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4966 states to 4966 states and 6480 transitions. [2024-11-07 01:46:51,891 INFO L78 Accepts]: Start accepts. Automaton has 4966 states and 6480 transitions. Word has length 66 [2024-11-07 01:46:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:51,891 INFO L471 AbstractCegarLoop]: Abstraction has 4966 states and 6480 transitions. [2024-11-07 01:46:51,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4966 states and 6480 transitions. [2024-11-07 01:46:51,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-07 01:46:51,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:51,898 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:51,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:46:51,899 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:51,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:51,899 INFO L85 PathProgramCache]: Analyzing trace with hash -539690255, now seen corresponding path program 1 times [2024-11-07 01:46:51,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:51,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498562940] [2024-11-07 01:46:51,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:51,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:51,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:51,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:51,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:51,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:51,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:51,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:51,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:51,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:51,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498562940] [2024-11-07 01:46:51,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498562940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:51,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:51,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:51,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771446943] [2024-11-07 01:46:51,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:51,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:51,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:51,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:51,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:51,991 INFO L87 Difference]: Start difference. First operand 4966 states and 6480 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-07 01:46:52,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:52,911 INFO L93 Difference]: Finished difference Result 6560 states and 8460 transitions. [2024-11-07 01:46:52,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 01:46:52,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 73 [2024-11-07 01:46:52,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:52,933 INFO L225 Difference]: With dead ends: 6560 [2024-11-07 01:46:52,933 INFO L226 Difference]: Without dead ends: 6557 [2024-11-07 01:46:52,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-07 01:46:52,935 INFO L432 NwaCegarLoop]: 451 mSDtfsCounter, 2642 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2651 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:52,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2651 Valid, 1224 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:46:52,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6557 states. [2024-11-07 01:46:53,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6557 to 6032. [2024-11-07 01:46:53,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6032 states, 4715 states have (on average 1.280593849416755) internal successors, (6038), 4799 states have internal predecessors, (6038), 658 states have call successors, (658), 542 states have call predecessors, (658), 657 states have return successors, (1097), 697 states have call predecessors, (1097), 655 states have call successors, (1097) [2024-11-07 01:46:53,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6032 states to 6032 states and 7793 transitions. [2024-11-07 01:46:53,240 INFO L78 Accepts]: Start accepts. Automaton has 6032 states and 7793 transitions. Word has length 73 [2024-11-07 01:46:53,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:53,240 INFO L471 AbstractCegarLoop]: Abstraction has 6032 states and 7793 transitions. [2024-11-07 01:46:53,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-07 01:46:53,241 INFO L276 IsEmpty]: Start isEmpty. Operand 6032 states and 7793 transitions. [2024-11-07 01:46:53,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-07 01:46:53,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:53,243 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:46:53,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:46:53,244 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:53,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:53,244 INFO L85 PathProgramCache]: Analyzing trace with hash 447934445, now seen corresponding path program 1 times [2024-11-07 01:46:53,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:53,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432641405] [2024-11-07 01:46:53,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:53,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:53,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:53,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432641405] [2024-11-07 01:46:53,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432641405] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:46:53,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090425171] [2024-11-07 01:46:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:53,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:46:53,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:46:53,367 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:46:53,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 01:46:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 01:46:53,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:46:53,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:53,693 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:46:53,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:53,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090425171] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:46:53,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:46:53,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-07 01:46:53,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097932638] [2024-11-07 01:46:53,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:46:53,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 01:46:53,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:53,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 01:46:53,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:46:53,772 INFO L87 Difference]: Start difference. First operand 6032 states and 7793 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-07 01:46:55,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:55,685 INFO L93 Difference]: Finished difference Result 13630 states and 17327 transitions. [2024-11-07 01:46:55,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 01:46:55,686 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 74 [2024-11-07 01:46:55,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:55,726 INFO L225 Difference]: With dead ends: 13630 [2024-11-07 01:46:55,726 INFO L226 Difference]: Without dead ends: 13627 [2024-11-07 01:46:55,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-07 01:46:55,731 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 2023 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 2058 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 2058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:55,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 2767 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 2058 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:46:55,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13627 states. [2024-11-07 01:46:56,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13627 to 11330. [2024-11-07 01:46:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11330 states, 8827 states have (on average 1.2673615044749065) internal successors, (11187), 8983 states have internal predecessors, (11187), 1224 states have call successors, (1224), 1032 states have call predecessors, (1224), 1277 states have return successors, (2076), 1321 states have call predecessors, (2076), 1221 states have call successors, (2076) [2024-11-07 01:46:56,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11330 states to 11330 states and 14487 transitions. [2024-11-07 01:46:56,381 INFO L78 Accepts]: Start accepts. Automaton has 11330 states and 14487 transitions. Word has length 74 [2024-11-07 01:46:56,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:56,382 INFO L471 AbstractCegarLoop]: Abstraction has 11330 states and 14487 transitions. [2024-11-07 01:46:56,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-07 01:46:56,382 INFO L276 IsEmpty]: Start isEmpty. Operand 11330 states and 14487 transitions. [2024-11-07 01:46:56,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:46:56,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:56,385 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:56,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 01:46:56,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:46:56,586 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:56,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:56,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1772710799, now seen corresponding path program 2 times [2024-11-07 01:46:56,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:56,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411713603] [2024-11-07 01:46:56,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:56,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:56,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:56,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411713603] [2024-11-07 01:46:56,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411713603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:56,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:56,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:56,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253656543] [2024-11-07 01:46:56,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:56,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:56,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:56,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:56,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:56,639 INFO L87 Difference]: Start difference. First operand 11330 states and 14487 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-07 01:46:57,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:57,565 INFO L93 Difference]: Finished difference Result 17865 states and 22879 transitions. [2024-11-07 01:46:57,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 01:46:57,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2024-11-07 01:46:57,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:57,589 INFO L225 Difference]: With dead ends: 17865 [2024-11-07 01:46:57,589 INFO L226 Difference]: Without dead ends: 7847 [2024-11-07 01:46:57,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:46:57,610 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 1763 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:57,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1799 Valid, 1297 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:46:57,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7847 states. [2024-11-07 01:46:58,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7847 to 7359. [2024-11-07 01:46:58,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7359 states, 5762 states have (on average 1.2500867754251996) internal successors, (7203), 5862 states have internal predecessors, (7203), 791 states have call successors, (791), 656 states have call predecessors, (791), 804 states have return successors, (1271), 847 states have call predecessors, (1271), 788 states have call successors, (1271) [2024-11-07 01:46:58,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7359 states to 7359 states and 9265 transitions. [2024-11-07 01:46:58,220 INFO L78 Accepts]: Start accepts. Automaton has 7359 states and 9265 transitions. Word has length 77 [2024-11-07 01:46:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:58,221 INFO L471 AbstractCegarLoop]: Abstraction has 7359 states and 9265 transitions. [2024-11-07 01:46:58,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-07 01:46:58,221 INFO L276 IsEmpty]: Start isEmpty. Operand 7359 states and 9265 transitions. [2024-11-07 01:46:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 01:46:58,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:58,224 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:58,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:46:58,224 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:58,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:58,224 INFO L85 PathProgramCache]: Analyzing trace with hash -276928801, now seen corresponding path program 1 times [2024-11-07 01:46:58,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:58,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063816572] [2024-11-07 01:46:58,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:58,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 01:46:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,319 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 01:46:58,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:58,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063816572] [2024-11-07 01:46:58,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063816572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:58,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:58,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:46:58,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935374899] [2024-11-07 01:46:58,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:58,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:46:58,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:58,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:46:58,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:46:58,321 INFO L87 Difference]: Start difference. First operand 7359 states and 9265 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-07 01:46:59,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:59,886 INFO L93 Difference]: Finished difference Result 21237 states and 26616 transitions. [2024-11-07 01:46:59,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 01:46:59,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-07 01:46:59,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:59,923 INFO L225 Difference]: With dead ends: 21237 [2024-11-07 01:46:59,924 INFO L226 Difference]: Without dead ends: 14330 [2024-11-07 01:46:59,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-07 01:46:59,937 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 1507 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:59,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 2064 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:46:59,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14330 states. [2024-11-07 01:47:00,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14330 to 13591. [2024-11-07 01:47:00,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13591 states, 10466 states have (on average 1.2178482705904834) internal successors, (12746), 10700 states have internal predecessors, (12746), 1511 states have call successors, (1511), 1260 states have call predecessors, (1511), 1612 states have return successors, (2736), 1643 states have call predecessors, (2736), 1508 states have call successors, (2736) [2024-11-07 01:47:00,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13591 states to 13591 states and 16993 transitions. [2024-11-07 01:47:00,688 INFO L78 Accepts]: Start accepts. Automaton has 13591 states and 16993 transitions. Word has length 84 [2024-11-07 01:47:00,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:00,688 INFO L471 AbstractCegarLoop]: Abstraction has 13591 states and 16993 transitions. [2024-11-07 01:47:00,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-07 01:47:00,688 INFO L276 IsEmpty]: Start isEmpty. Operand 13591 states and 16993 transitions. [2024-11-07 01:47:00,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 01:47:00,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:00,693 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:47:00,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:47:00,693 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:00,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:00,693 INFO L85 PathProgramCache]: Analyzing trace with hash 630575919, now seen corresponding path program 1 times [2024-11-07 01:47:00,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:00,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992265874] [2024-11-07 01:47:00,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:00,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:47:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:47:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:47:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:47:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-07 01:47:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 01:47:00,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:00,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992265874] [2024-11-07 01:47:00,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992265874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:00,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:00,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:47:00,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839256901] [2024-11-07 01:47:00,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:00,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:47:00,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:00,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:47:00,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:47:00,782 INFO L87 Difference]: Start difference. First operand 13591 states and 16993 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-07 01:47:02,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:02,941 INFO L93 Difference]: Finished difference Result 24457 states and 30352 transitions. [2024-11-07 01:47:02,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 01:47:02,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-07 01:47:02,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:02,975 INFO L225 Difference]: With dead ends: 24457 [2024-11-07 01:47:02,976 INFO L226 Difference]: Without dead ends: 11944 [2024-11-07 01:47:02,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-07 01:47:02,997 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 2588 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2635 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:02,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2635 Valid, 2071 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:47:03,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11944 states. [2024-11-07 01:47:03,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11944 to 11094. [2024-11-07 01:47:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11094 states, 8597 states have (on average 1.208212167035012) internal successors, (10387), 8763 states have internal predecessors, (10387), 1210 states have call successors, (1210), 1009 states have call predecessors, (1210), 1285 states have return successors, (1995), 1331 states have call predecessors, (1995), 1207 states have call successors, (1995) [2024-11-07 01:47:03,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11094 states to 11094 states and 13592 transitions. [2024-11-07 01:47:03,638 INFO L78 Accepts]: Start accepts. Automaton has 11094 states and 13592 transitions. Word has length 93 [2024-11-07 01:47:03,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:03,639 INFO L471 AbstractCegarLoop]: Abstraction has 11094 states and 13592 transitions. [2024-11-07 01:47:03,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-07 01:47:03,639 INFO L276 IsEmpty]: Start isEmpty. Operand 11094 states and 13592 transitions. [2024-11-07 01:47:03,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:47:03,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:03,647 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 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] [2024-11-07 01:47:03,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:47:03,648 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:03,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:03,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1674276325, now seen corresponding path program 1 times [2024-11-07 01:47:03,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:03,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517805454] [2024-11-07 01:47:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:03,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:47:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:47:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:47:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:47:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 01:47:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 01:47:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:47:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 01:47:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:47:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 01:47:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 01:47:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-07 01:47:03,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:03,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517805454] [2024-11-07 01:47:03,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517805454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:47:03,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446716771] [2024-11-07 01:47:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:03,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:47:03,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:47:03,776 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:47:03,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 01:47:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 01:47:03,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:47:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-07 01:47:03,916 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:47:03,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446716771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:03,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:47:03,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-11-07 01:47:03,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749807846] [2024-11-07 01:47:03,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:03,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:47:03,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:03,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:47:03,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-07 01:47:03,917 INFO L87 Difference]: Start difference. First operand 11094 states and 13592 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 01:47:04,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:04,204 INFO L93 Difference]: Finished difference Result 16055 states and 19525 transitions. [2024-11-07 01:47:04,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:47:04,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2024-11-07 01:47:04,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:04,226 INFO L225 Difference]: With dead ends: 16055 [2024-11-07 01:47:04,226 INFO L226 Difference]: Without dead ends: 5423 [2024-11-07 01:47:04,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-07 01:47:04,243 INFO L432 NwaCegarLoop]: 785 mSDtfsCounter, 0 mSDsluCounter, 3131 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3916 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:04,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3916 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:47:04,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5423 states. [2024-11-07 01:47:04,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5423 to 5267. [2024-11-07 01:47:04,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 4206 states have (on average 1.2094626723728008) internal successors, (5087), 4257 states have internal predecessors, (5087), 518 states have call successors, (518), 415 states have call predecessors, (518), 541 states have return successors, (809), 595 states have call predecessors, (809), 515 states have call successors, (809) [2024-11-07 01:47:04,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 6414 transitions. [2024-11-07 01:47:04,503 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 6414 transitions. Word has length 145 [2024-11-07 01:47:04,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:04,503 INFO L471 AbstractCegarLoop]: Abstraction has 5267 states and 6414 transitions. [2024-11-07 01:47:04,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 01:47:04,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 6414 transitions. [2024-11-07 01:47:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-07 01:47:04,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:04,510 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:47:04,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 01:47:04,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:47:04,710 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:04,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:04,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1640362905, now seen corresponding path program 1 times [2024-11-07 01:47:04,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:04,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813888412] [2024-11-07 01:47:04,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:04,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:47:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:47:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:47:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:47:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 01:47:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 01:47:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 01:47:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-07 01:47:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 01:47:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 01:47:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 01:47:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:04,782 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-07 01:47:04,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:04,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813888412] [2024-11-07 01:47:04,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813888412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:04,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:04,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:47:04,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135006242] [2024-11-07 01:47:04,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:04,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:47:04,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:04,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:47:04,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:47:04,784 INFO L87 Difference]: Start difference. First operand 5267 states and 6414 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-07 01:47:05,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:05,506 INFO L93 Difference]: Finished difference Result 5805 states and 7024 transitions. [2024-11-07 01:47:05,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:05,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 147 [2024-11-07 01:47:05,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:05,523 INFO L225 Difference]: With dead ends: 5805 [2024-11-07 01:47:05,523 INFO L226 Difference]: Without dead ends: 5023 [2024-11-07 01:47:05,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:47:05,526 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 802 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:05,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 1860 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:47:05,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5023 states. [2024-11-07 01:47:05,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5023 to 4811. [2024-11-07 01:47:05,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4811 states, 3856 states have (on average 1.2144709543568464) internal successors, (4683), 3902 states have internal predecessors, (4683), 468 states have call successors, (468), 371 states have call predecessors, (468), 485 states have return successors, (738), 538 states have call predecessors, (738), 465 states have call successors, (738) [2024-11-07 01:47:05,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 5889 transitions. [2024-11-07 01:47:05,791 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 5889 transitions. Word has length 147 [2024-11-07 01:47:05,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:05,792 INFO L471 AbstractCegarLoop]: Abstraction has 4811 states and 5889 transitions. [2024-11-07 01:47:05,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-07 01:47:05,792 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 5889 transitions. [2024-11-07 01:47:05,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-07 01:47:05,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:05,799 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:47:05,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 01:47:05,799 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:05,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:05,800 INFO L85 PathProgramCache]: Analyzing trace with hash -560976510, now seen corresponding path program 1 times [2024-11-07 01:47:05,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:05,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910450929] [2024-11-07 01:47:05,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:05,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:47:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:47:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 01:47:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 01:47:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 01:47:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 01:47:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 01:47:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 01:47:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 01:47:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:05,903 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-07 01:47:05,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:05,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910450929] [2024-11-07 01:47:05,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910450929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:47:05,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094025997] [2024-11-07 01:47:05,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:05,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:47:05,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:47:05,905 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:47:05,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 01:47:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 01:47:06,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:47:06,130 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-07 01:47:06,131 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:47:06,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094025997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:06,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:47:06,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 01:47:06,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059475127] [2024-11-07 01:47:06,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:06,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:47:06,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:06,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:47:06,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:47:06,132 INFO L87 Difference]: Start difference. First operand 4811 states and 5889 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 01:47:06,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:06,314 INFO L93 Difference]: Finished difference Result 6655 states and 8065 transitions. [2024-11-07 01:47:06,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:47:06,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 158 [2024-11-07 01:47:06,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:06,325 INFO L225 Difference]: With dead ends: 6655 [2024-11-07 01:47:06,325 INFO L226 Difference]: Without dead ends: 2570 [2024-11-07 01:47:06,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:47:06,331 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 695 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:06,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 888 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:47:06,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2024-11-07 01:47:06,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2570. [2024-11-07 01:47:06,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2570 states, 2098 states have (on average 1.2364156339370829) internal successors, (2594), 2123 states have internal predecessors, (2594), 235 states have call successors, (235), 179 states have call predecessors, (235), 235 states have return successors, (343), 268 states have call predecessors, (343), 232 states have call successors, (343) [2024-11-07 01:47:06,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 3172 transitions. [2024-11-07 01:47:06,466 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 3172 transitions. Word has length 158 [2024-11-07 01:47:06,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:06,467 INFO L471 AbstractCegarLoop]: Abstraction has 2570 states and 3172 transitions. [2024-11-07 01:47:06,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 01:47:06,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 3172 transitions. [2024-11-07 01:47:06,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-07 01:47:06,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:06,471 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:47:06,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 01:47:06,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:47:06,671 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:06,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:06,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1598815429, now seen corresponding path program 1 times [2024-11-07 01:47:06,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:06,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132732360] [2024-11-07 01:47:06,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:06,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:47:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:47:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:47:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:47:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:47:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 01:47:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 01:47:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:47:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 01:47:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 01:47:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-07 01:47:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,757 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-07 01:47:06,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:06,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132732360] [2024-11-07 01:47:06,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132732360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:06,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:06,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:06,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376003470] [2024-11-07 01:47:06,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:06,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:06,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:06,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:06,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:06,761 INFO L87 Difference]: Start difference. First operand 2570 states and 3172 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-07 01:47:07,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:07,684 INFO L93 Difference]: Finished difference Result 4436 states and 5384 transitions. [2024-11-07 01:47:07,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 01:47:07,684 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 159 [2024-11-07 01:47:07,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:07,694 INFO L225 Difference]: With dead ends: 4436 [2024-11-07 01:47:07,695 INFO L226 Difference]: Without dead ends: 2667 [2024-11-07 01:47:07,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:47:07,697 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 722 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:07,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 2385 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:47:07,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2024-11-07 01:47:07,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2121. [2024-11-07 01:47:07,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2121 states, 1745 states have (on average 1.2544412607449857) internal successors, (2189), 1765 states have internal predecessors, (2189), 191 states have call successors, (191), 143 states have call predecessors, (191), 183 states have return successors, (267), 213 states have call predecessors, (267), 188 states have call successors, (267) [2024-11-07 01:47:07,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 2647 transitions. [2024-11-07 01:47:07,898 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 2647 transitions. Word has length 159 [2024-11-07 01:47:07,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:07,899 INFO L471 AbstractCegarLoop]: Abstraction has 2121 states and 2647 transitions. [2024-11-07 01:47:07,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-07 01:47:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 2647 transitions. [2024-11-07 01:47:07,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-07 01:47:07,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:07,902 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-07 01:47:07,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 01:47:07,902 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:07,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:07,902 INFO L85 PathProgramCache]: Analyzing trace with hash 782951110, now seen corresponding path program 1 times [2024-11-07 01:47:07,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:07,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629845514] [2024-11-07 01:47:07,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:07,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:47:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:47:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:47:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:47:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:47:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 01:47:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-07 01:47:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 01:47:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-07 01:47:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-07 01:47:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:47:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,112 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 25 proven. 7 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-07 01:47:08,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:08,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629845514] [2024-11-07 01:47:08,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629845514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:47:08,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973998975] [2024-11-07 01:47:08,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:08,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:47:08,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:47:08,115 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:47:08,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 01:47:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:08,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 01:47:08,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:47:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-07 01:47:08,343 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:47:08,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973998975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:08,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:47:08,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-07 01:47:08,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763398749] [2024-11-07 01:47:08,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:08,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:47:08,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:08,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:47:08,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:47:08,345 INFO L87 Difference]: Start difference. First operand 2121 states and 2647 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 01:47:08,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:08,883 INFO L93 Difference]: Finished difference Result 4719 states and 5766 transitions. [2024-11-07 01:47:08,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:47:08,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 162 [2024-11-07 01:47:08,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:08,894 INFO L225 Difference]: With dead ends: 4719 [2024-11-07 01:47:08,894 INFO L226 Difference]: Without dead ends: 2945 [2024-11-07 01:47:08,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-07 01:47:08,896 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 400 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:08,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1217 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 01:47:08,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2024-11-07 01:47:09,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2915. [2024-11-07 01:47:09,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2404 states have (on average 1.214226289517471) internal successors, (2919), 2429 states have internal predecessors, (2919), 257 states have call successors, (257), 191 states have call predecessors, (257), 252 states have return successors, (374), 295 states have call predecessors, (374), 254 states have call successors, (374) [2024-11-07 01:47:09,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 3550 transitions. [2024-11-07 01:47:09,041 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 3550 transitions. Word has length 162 [2024-11-07 01:47:09,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:09,041 INFO L471 AbstractCegarLoop]: Abstraction has 2915 states and 3550 transitions. [2024-11-07 01:47:09,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 01:47:09,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 3550 transitions. [2024-11-07 01:47:09,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:09,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:09,044 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:09,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 01:47:09,245 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,SelfDestructingSolverStorable16 [2024-11-07 01:47:09,245 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:09,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:09,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1489975161, now seen corresponding path program 1 times [2024-11-07 01:47:09,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:09,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763811219] [2024-11-07 01:47:09,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:09,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:47:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:47:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 01:47:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 01:47:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:47:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-07 01:47:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 01:47:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 01:47:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:47:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:47:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-07 01:47:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-07 01:47:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:47:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,335 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-07 01:47:09,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:09,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763811219] [2024-11-07 01:47:09,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763811219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:47:09,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155561236] [2024-11-07 01:47:09,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:09,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:47:09,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:47:09,337 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:47:09,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 01:47:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 01:47:09,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:47:09,480 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-07 01:47:09,480 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:47:09,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155561236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:09,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:47:09,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-07 01:47:09,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775480398] [2024-11-07 01:47:09,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:09,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:47:09,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:09,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:47:09,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:47:09,482 INFO L87 Difference]: Start difference. First operand 2915 states and 3550 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-07 01:47:10,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:10,042 INFO L93 Difference]: Finished difference Result 5298 states and 6321 transitions. [2024-11-07 01:47:10,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:10,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 179 [2024-11-07 01:47:10,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:10,053 INFO L225 Difference]: With dead ends: 5298 [2024-11-07 01:47:10,053 INFO L226 Difference]: Without dead ends: 2654 [2024-11-07 01:47:10,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-07 01:47:10,056 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 1069 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:10,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 1191 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 01:47:10,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2024-11-07 01:47:10,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2480. [2024-11-07 01:47:10,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2480 states, 2065 states have (on average 1.2227602905569008) internal successors, (2525), 2085 states have internal predecessors, (2525), 210 states have call successors, (210), 150 states have call predecessors, (210), 203 states have return successors, (293), 245 states have call predecessors, (293), 207 states have call successors, (293) [2024-11-07 01:47:10,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 3028 transitions. [2024-11-07 01:47:10,208 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 3028 transitions. Word has length 179 [2024-11-07 01:47:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:10,208 INFO L471 AbstractCegarLoop]: Abstraction has 2480 states and 3028 transitions. [2024-11-07 01:47:10,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-07 01:47:10,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 3028 transitions. [2024-11-07 01:47:10,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:10,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:10,212 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:10,225 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 [2024-11-07 01:47:10,412 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,SelfDestructingSolverStorable17 [2024-11-07 01:47:10,413 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:10,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:10,413 INFO L85 PathProgramCache]: Analyzing trace with hash -372771871, now seen corresponding path program 1 times [2024-11-07 01:47:10,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:10,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690868801] [2024-11-07 01:47:10,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:10,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:10,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:10,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:10,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:10,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:10,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:10,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:10,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:10,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690868801] [2024-11-07 01:47:10,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690868801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:10,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:10,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:47:10,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554520433] [2024-11-07 01:47:10,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:10,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:47:10,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:10,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:47:10,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:47:10,560 INFO L87 Difference]: Start difference. First operand 2480 states and 3028 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:12,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:12,241 INFO L93 Difference]: Finished difference Result 3048 states and 3942 transitions. [2024-11-07 01:47:12,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:12,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:12,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:12,251 INFO L225 Difference]: With dead ends: 3048 [2024-11-07 01:47:12,251 INFO L226 Difference]: Without dead ends: 2633 [2024-11-07 01:47:12,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:47:12,252 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 1235 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:12,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 1079 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:47:12,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2024-11-07 01:47:12,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2480. [2024-11-07 01:47:12,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2480 states, 2065 states have (on average 1.22227602905569) internal successors, (2524), 2085 states have internal predecessors, (2524), 210 states have call successors, (210), 150 states have call predecessors, (210), 203 states have return successors, (293), 245 states have call predecessors, (293), 207 states have call successors, (293) [2024-11-07 01:47:12,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 3027 transitions. [2024-11-07 01:47:12,524 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 3027 transitions. Word has length 190 [2024-11-07 01:47:12,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:12,524 INFO L471 AbstractCegarLoop]: Abstraction has 2480 states and 3027 transitions. [2024-11-07 01:47:12,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:12,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 3027 transitions. [2024-11-07 01:47:12,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:12,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:12,525 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:12,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 01:47:12,526 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:12,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:12,526 INFO L85 PathProgramCache]: Analyzing trace with hash 975361699, now seen corresponding path program 1 times [2024-11-07 01:47:12,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:12,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98810630] [2024-11-07 01:47:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:12,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:12,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:12,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98810630] [2024-11-07 01:47:12,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98810630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:12,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:12,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:47:12,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223791647] [2024-11-07 01:47:12,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:12,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:47:12,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:12,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:47:12,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:47:12,661 INFO L87 Difference]: Start difference. First operand 2480 states and 3027 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:14,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:14,317 INFO L93 Difference]: Finished difference Result 3040 states and 3925 transitions. [2024-11-07 01:47:14,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:14,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:14,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:14,326 INFO L225 Difference]: With dead ends: 3040 [2024-11-07 01:47:14,326 INFO L226 Difference]: Without dead ends: 2633 [2024-11-07 01:47:14,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:47:14,327 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1226 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:14,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1251 Valid, 1077 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:47:14,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2024-11-07 01:47:14,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2480. [2024-11-07 01:47:14,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2480 states, 2065 states have (on average 1.2217917675544794) internal successors, (2523), 2085 states have internal predecessors, (2523), 210 states have call successors, (210), 150 states have call predecessors, (210), 203 states have return successors, (293), 245 states have call predecessors, (293), 207 states have call successors, (293) [2024-11-07 01:47:14,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 3026 transitions. [2024-11-07 01:47:14,594 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 3026 transitions. Word has length 190 [2024-11-07 01:47:14,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:14,594 INFO L471 AbstractCegarLoop]: Abstraction has 2480 states and 3026 transitions. [2024-11-07 01:47:14,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:14,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 3026 transitions. [2024-11-07 01:47:14,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:14,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:14,596 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:14,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 01:47:14,596 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:14,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:14,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1806015333, now seen corresponding path program 1 times [2024-11-07 01:47:14,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:14,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197816438] [2024-11-07 01:47:14,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:14,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:14,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:14,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:14,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:14,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:14,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:14,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:14,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197816438] [2024-11-07 01:47:14,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197816438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:14,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:14,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:47:14,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503343141] [2024-11-07 01:47:14,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:14,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:47:14,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:14,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:47:14,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:47:14,769 INFO L87 Difference]: Start difference. First operand 2480 states and 3026 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:17,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:17,200 INFO L93 Difference]: Finished difference Result 3606 states and 4837 transitions. [2024-11-07 01:47:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:47:17,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:17,210 INFO L225 Difference]: With dead ends: 3606 [2024-11-07 01:47:17,210 INFO L226 Difference]: Without dead ends: 3206 [2024-11-07 01:47:17,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:47:17,212 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 1916 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 2752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:17,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 1655 Invalid, 2752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 01:47:17,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2024-11-07 01:47:17,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 2899. [2024-11-07 01:47:17,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2899 states, 2455 states have (on average 1.279022403258656) internal successors, (3140), 2476 states have internal predecessors, (3140), 232 states have call successors, (232), 156 states have call predecessors, (232), 210 states have return successors, (318), 267 states have call predecessors, (318), 229 states have call successors, (318) [2024-11-07 01:47:17,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 3690 transitions. [2024-11-07 01:47:17,504 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 3690 transitions. Word has length 190 [2024-11-07 01:47:17,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:17,505 INFO L471 AbstractCegarLoop]: Abstraction has 2899 states and 3690 transitions. [2024-11-07 01:47:17,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:17,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 3690 transitions. [2024-11-07 01:47:17,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:17,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:17,506 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:17,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 01:47:17,506 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:17,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:17,507 INFO L85 PathProgramCache]: Analyzing trace with hash -41011103, now seen corresponding path program 1 times [2024-11-07 01:47:17,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:17,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618050344] [2024-11-07 01:47:17,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:17,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:17,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:17,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:17,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:17,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:17,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:17,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:17,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:17,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618050344] [2024-11-07 01:47:17,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618050344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:17,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:17,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:17,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460308249] [2024-11-07 01:47:17,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:17,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:17,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:17,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:17,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:17,705 INFO L87 Difference]: Start difference. First operand 2899 states and 3690 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:21,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:21,049 INFO L93 Difference]: Finished difference Result 4618 states and 6460 transitions. [2024-11-07 01:47:21,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:21,050 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:21,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:21,059 INFO L225 Difference]: With dead ends: 4618 [2024-11-07 01:47:21,060 INFO L226 Difference]: Without dead ends: 3799 [2024-11-07 01:47:21,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:47:21,062 INFO L432 NwaCegarLoop]: 691 mSDtfsCounter, 1951 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 4104 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 4205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 4104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:21,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1981 Valid, 3069 Invalid, 4205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 4104 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-07 01:47:21,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3799 states. [2024-11-07 01:47:21,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3799 to 3289. [2024-11-07 01:47:21,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3289 states, 2816 states have (on average 1.3135653409090908) internal successors, (3699), 2838 states have internal predecessors, (3699), 254 states have call successors, (254), 162 states have call predecessors, (254), 217 states have return successors, (342), 290 states have call predecessors, (342), 251 states have call successors, (342) [2024-11-07 01:47:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3289 states to 3289 states and 4295 transitions. [2024-11-07 01:47:21,353 INFO L78 Accepts]: Start accepts. Automaton has 3289 states and 4295 transitions. Word has length 190 [2024-11-07 01:47:21,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:21,353 INFO L471 AbstractCegarLoop]: Abstraction has 3289 states and 4295 transitions. [2024-11-07 01:47:21,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:21,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3289 states and 4295 transitions. [2024-11-07 01:47:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:21,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:21,355 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:21,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 01:47:21,355 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:21,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:21,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1964261533, now seen corresponding path program 1 times [2024-11-07 01:47:21,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:21,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560515336] [2024-11-07 01:47:21,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:21,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:21,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:21,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:21,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:21,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:21,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:21,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:21,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560515336] [2024-11-07 01:47:21,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560515336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:21,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:21,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:21,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927033705] [2024-11-07 01:47:21,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:21,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:21,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:21,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:21,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:21,549 INFO L87 Difference]: Start difference. First operand 3289 states and 4295 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:24,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:24,850 INFO L93 Difference]: Finished difference Result 6111 states and 8833 transitions. [2024-11-07 01:47:24,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:24,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:24,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:24,863 INFO L225 Difference]: With dead ends: 6111 [2024-11-07 01:47:24,863 INFO L226 Difference]: Without dead ends: 4902 [2024-11-07 01:47:24,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:47:24,867 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 1949 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 4100 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 4203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 4100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:24,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 3067 Invalid, 4203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 4100 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:47:24,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4902 states. [2024-11-07 01:47:25,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4902 to 4070. [2024-11-07 01:47:25,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4070 states, 3539 states have (on average 1.3614015258547612) internal successors, (4818), 3563 states have internal predecessors, (4818), 298 states have call successors, (298), 174 states have call predecessors, (298), 231 states have return successors, (394), 336 states have call predecessors, (394), 295 states have call successors, (394) [2024-11-07 01:47:25,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4070 states to 4070 states and 5510 transitions. [2024-11-07 01:47:25,196 INFO L78 Accepts]: Start accepts. Automaton has 4070 states and 5510 transitions. Word has length 190 [2024-11-07 01:47:25,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:25,196 INFO L471 AbstractCegarLoop]: Abstraction has 4070 states and 5510 transitions. [2024-11-07 01:47:25,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:25,197 INFO L276 IsEmpty]: Start isEmpty. Operand 4070 states and 5510 transitions. [2024-11-07 01:47:25,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:25,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:25,198 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:25,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 01:47:25,198 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:25,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:25,198 INFO L85 PathProgramCache]: Analyzing trace with hash 606097441, now seen corresponding path program 1 times [2024-11-07 01:47:25,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:25,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434011240] [2024-11-07 01:47:25,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:25,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:25,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:25,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:25,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:25,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:25,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:25,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:25,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:25,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434011240] [2024-11-07 01:47:25,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434011240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:25,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:25,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:25,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736093450] [2024-11-07 01:47:25,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:25,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:25,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:25,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:25,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:25,404 INFO L87 Difference]: Start difference. First operand 4070 states and 5510 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:27,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:27,052 INFO L93 Difference]: Finished difference Result 6880 states and 10039 transitions. [2024-11-07 01:47:27,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:27,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:27,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:27,066 INFO L225 Difference]: With dead ends: 6880 [2024-11-07 01:47:27,066 INFO L226 Difference]: Without dead ends: 4890 [2024-11-07 01:47:27,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:47:27,069 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 1685 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:27,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 1400 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:47:27,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4890 states. [2024-11-07 01:47:27,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 4070. [2024-11-07 01:47:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4070 states, 3539 states have (on average 1.3599886973721391) internal successors, (4813), 3563 states have internal predecessors, (4813), 298 states have call successors, (298), 174 states have call predecessors, (298), 231 states have return successors, (394), 336 states have call predecessors, (394), 295 states have call successors, (394) [2024-11-07 01:47:27,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4070 states to 4070 states and 5505 transitions. [2024-11-07 01:47:27,426 INFO L78 Accepts]: Start accepts. Automaton has 4070 states and 5505 transitions. Word has length 190 [2024-11-07 01:47:27,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:27,426 INFO L471 AbstractCegarLoop]: Abstraction has 4070 states and 5505 transitions. [2024-11-07 01:47:27,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:27,426 INFO L276 IsEmpty]: Start isEmpty. Operand 4070 states and 5505 transitions. [2024-11-07 01:47:27,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:27,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:27,428 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:27,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 01:47:27,428 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:27,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:27,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1104654243, now seen corresponding path program 1 times [2024-11-07 01:47:27,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:27,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414418420] [2024-11-07 01:47:27,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:27,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:27,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:27,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:27,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:27,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:27,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:27,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:27,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:27,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414418420] [2024-11-07 01:47:27,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414418420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:27,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:27,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:27,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256784583] [2024-11-07 01:47:27,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:27,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:27,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:27,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:27,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:27,582 INFO L87 Difference]: Start difference. First operand 4070 states and 5505 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:29,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:29,235 INFO L93 Difference]: Finished difference Result 6874 states and 10013 transitions. [2024-11-07 01:47:29,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:29,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:29,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:29,247 INFO L225 Difference]: With dead ends: 6874 [2024-11-07 01:47:29,247 INFO L226 Difference]: Without dead ends: 4884 [2024-11-07 01:47:29,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:47:29,249 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 1689 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:29,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 1400 Invalid, 2101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1952 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:47:29,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2024-11-07 01:47:29,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4070. [2024-11-07 01:47:29,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4070 states, 3539 states have (on average 1.3585758688895169) internal successors, (4808), 3563 states have internal predecessors, (4808), 298 states have call successors, (298), 174 states have call predecessors, (298), 231 states have return successors, (394), 336 states have call predecessors, (394), 295 states have call successors, (394) [2024-11-07 01:47:29,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4070 states to 4070 states and 5500 transitions. [2024-11-07 01:47:29,618 INFO L78 Accepts]: Start accepts. Automaton has 4070 states and 5500 transitions. Word has length 190 [2024-11-07 01:47:29,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:29,618 INFO L471 AbstractCegarLoop]: Abstraction has 4070 states and 5500 transitions. [2024-11-07 01:47:29,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:29,618 INFO L276 IsEmpty]: Start isEmpty. Operand 4070 states and 5500 transitions. [2024-11-07 01:47:29,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:29,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:29,620 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:29,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 01:47:29,620 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:29,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:29,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1674926049, now seen corresponding path program 1 times [2024-11-07 01:47:29,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:29,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948965760] [2024-11-07 01:47:29,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:29,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:29,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:29,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:29,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:29,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:29,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:29,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:29,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:29,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948965760] [2024-11-07 01:47:29,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948965760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:29,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:29,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:29,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010617016] [2024-11-07 01:47:29,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:29,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:29,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:29,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:29,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:29,805 INFO L87 Difference]: Start difference. First operand 4070 states and 5500 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:31,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:31,625 INFO L93 Difference]: Finished difference Result 6862 states and 9975 transitions. [2024-11-07 01:47:31,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:31,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:31,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:31,637 INFO L225 Difference]: With dead ends: 6862 [2024-11-07 01:47:31,637 INFO L226 Difference]: Without dead ends: 4872 [2024-11-07 01:47:31,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:47:31,640 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 1541 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1572 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 2093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:31,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1572 Valid, 1676 Invalid, 2093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:47:31,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4872 states. [2024-11-07 01:47:31,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4872 to 4070. [2024-11-07 01:47:31,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4070 states, 3539 states have (on average 1.3571630404068946) internal successors, (4803), 3563 states have internal predecessors, (4803), 298 states have call successors, (298), 174 states have call predecessors, (298), 231 states have return successors, (394), 336 states have call predecessors, (394), 295 states have call successors, (394) [2024-11-07 01:47:31,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4070 states to 4070 states and 5495 transitions. [2024-11-07 01:47:31,989 INFO L78 Accepts]: Start accepts. Automaton has 4070 states and 5495 transitions. Word has length 190 [2024-11-07 01:47:31,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:31,989 INFO L471 AbstractCegarLoop]: Abstraction has 4070 states and 5495 transitions. [2024-11-07 01:47:31,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4070 states and 5495 transitions. [2024-11-07 01:47:31,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:31,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:31,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:31,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 01:47:31,991 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:31,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:31,991 INFO L85 PathProgramCache]: Analyzing trace with hash 888928159, now seen corresponding path program 1 times [2024-11-07 01:47:31,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:31,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254432945] [2024-11-07 01:47:31,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:31,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:32,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:32,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:32,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:32,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:32,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:32,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:32,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254432945] [2024-11-07 01:47:32,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254432945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:32,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:32,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:32,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243418151] [2024-11-07 01:47:32,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:32,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:32,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:32,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:32,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:32,158 INFO L87 Difference]: Start difference. First operand 4070 states and 5495 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:35,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:35,506 INFO L93 Difference]: Finished difference Result 8959 states and 13252 transitions. [2024-11-07 01:47:35,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:35,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:35,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:35,521 INFO L225 Difference]: With dead ends: 8959 [2024-11-07 01:47:35,521 INFO L226 Difference]: Without dead ends: 6969 [2024-11-07 01:47:35,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:47:35,524 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 1928 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 3994 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 4097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:35,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1958 Valid, 3067 Invalid, 4097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3994 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:47:35,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6969 states. [2024-11-07 01:47:35,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6969 to 5651. [2024-11-07 01:47:35,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5651 states, 5004 states have (on average 1.4098721023181455) internal successors, (7055), 5032 states have internal predecessors, (7055), 386 states have call successors, (386), 198 states have call predecessors, (386), 259 states have return successors, (504), 428 states have call predecessors, (504), 383 states have call successors, (504) [2024-11-07 01:47:35,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5651 states to 5651 states and 7945 transitions. [2024-11-07 01:47:35,969 INFO L78 Accepts]: Start accepts. Automaton has 5651 states and 7945 transitions. Word has length 190 [2024-11-07 01:47:35,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:35,970 INFO L471 AbstractCegarLoop]: Abstraction has 5651 states and 7945 transitions. [2024-11-07 01:47:35,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5651 states and 7945 transitions. [2024-11-07 01:47:35,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:35,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:35,972 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:35,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 01:47:35,972 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:35,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:35,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1556310049, now seen corresponding path program 1 times [2024-11-07 01:47:35,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:35,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642318039] [2024-11-07 01:47:35,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:35,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:36,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:36,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:36,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:36,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:36,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:36,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:36,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:36,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642318039] [2024-11-07 01:47:36,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642318039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:36,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:36,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:36,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546916341] [2024-11-07 01:47:36,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:36,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:36,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:36,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:36,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:36,112 INFO L87 Difference]: Start difference. First operand 5651 states and 7945 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:37,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:37,894 INFO L93 Difference]: Finished difference Result 10564 states and 15778 transitions. [2024-11-07 01:47:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:37,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:37,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:37,908 INFO L225 Difference]: With dead ends: 10564 [2024-11-07 01:47:37,908 INFO L226 Difference]: Without dead ends: 6993 [2024-11-07 01:47:37,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:47:37,911 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 1684 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1910 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:37,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 1400 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1910 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:47:37,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6993 states. [2024-11-07 01:47:38,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6993 to 5651. [2024-11-07 01:47:38,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5651 states, 5004 states have (on average 1.4080735411670664) internal successors, (7046), 5032 states have internal predecessors, (7046), 386 states have call successors, (386), 198 states have call predecessors, (386), 259 states have return successors, (504), 428 states have call predecessors, (504), 383 states have call successors, (504) [2024-11-07 01:47:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5651 states to 5651 states and 7936 transitions. [2024-11-07 01:47:38,338 INFO L78 Accepts]: Start accepts. Automaton has 5651 states and 7936 transitions. Word has length 190 [2024-11-07 01:47:38,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:38,338 INFO L471 AbstractCegarLoop]: Abstraction has 5651 states and 7936 transitions. [2024-11-07 01:47:38,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:38,339 INFO L276 IsEmpty]: Start isEmpty. Operand 5651 states and 7936 transitions. [2024-11-07 01:47:38,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:38,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:38,341 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:38,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 01:47:38,341 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:38,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:38,341 INFO L85 PathProgramCache]: Analyzing trace with hash -638918817, now seen corresponding path program 1 times [2024-11-07 01:47:38,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:38,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271415949] [2024-11-07 01:47:38,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:38,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:38,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:38,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:38,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:38,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:38,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:38,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:38,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271415949] [2024-11-07 01:47:38,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271415949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:38,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:38,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:38,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404765016] [2024-11-07 01:47:38,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:38,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:38,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:38,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:38,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:38,487 INFO L87 Difference]: Start difference. First operand 5651 states and 7936 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:42,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:42,021 INFO L93 Difference]: Finished difference Result 14696 states and 22212 transitions. [2024-11-07 01:47:42,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:42,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:42,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:42,038 INFO L225 Difference]: With dead ends: 14696 [2024-11-07 01:47:42,039 INFO L226 Difference]: Without dead ends: 11125 [2024-11-07 01:47:42,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:47:42,043 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 1920 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 3956 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 4059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:42,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1950 Valid, 3067 Invalid, 4059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3956 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:47:42,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11125 states. [2024-11-07 01:47:42,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11125 to 8821. [2024-11-07 01:47:42,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8821 states, 7942 states have (on average 1.4537899773356837) internal successors, (11546), 7978 states have internal predecessors, (11546), 562 states have call successors, (562), 246 states have call predecessors, (562), 315 states have return successors, (742), 612 states have call predecessors, (742), 559 states have call successors, (742) [2024-11-07 01:47:42,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8821 states to 8821 states and 12850 transitions. [2024-11-07 01:47:42,754 INFO L78 Accepts]: Start accepts. Automaton has 8821 states and 12850 transitions. Word has length 190 [2024-11-07 01:47:42,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:42,754 INFO L471 AbstractCegarLoop]: Abstraction has 8821 states and 12850 transitions. [2024-11-07 01:47:42,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:42,755 INFO L276 IsEmpty]: Start isEmpty. Operand 8821 states and 12850 transitions. [2024-11-07 01:47:42,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:42,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:42,758 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:42,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-07 01:47:42,758 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:42,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:42,758 INFO L85 PathProgramCache]: Analyzing trace with hash -294090655, now seen corresponding path program 1 times [2024-11-07 01:47:42,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:42,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847218874] [2024-11-07 01:47:42,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:42,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:42,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:42,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:42,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:42,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:42,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:42,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:42,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847218874] [2024-11-07 01:47:42,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847218874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:42,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:42,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:42,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534318624] [2024-11-07 01:47:42,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:42,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:42,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:42,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:42,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:42,958 INFO L87 Difference]: Start difference. First operand 8821 states and 12850 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:47,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:47,059 INFO L93 Difference]: Finished difference Result 26184 states and 40260 transitions. [2024-11-07 01:47:47,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:47,060 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:47,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:47,092 INFO L225 Difference]: With dead ends: 26184 [2024-11-07 01:47:47,092 INFO L226 Difference]: Without dead ends: 19443 [2024-11-07 01:47:47,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:47:47,101 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 1919 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 3943 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1949 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 4046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:47,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1949 Valid, 3067 Invalid, 4046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3943 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:47:47,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19443 states. [2024-11-07 01:47:48,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19443 to 15174. [2024-11-07 01:47:48,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15174 states, 13831 states have (on average 1.486805003253561) internal successors, (20564), 13883 states have internal predecessors, (20564), 914 states have call successors, (914), 342 states have call predecessors, (914), 427 states have return successors, (1272), 980 states have call predecessors, (1272), 911 states have call successors, (1272) [2024-11-07 01:47:48,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15174 states to 15174 states and 22750 transitions. [2024-11-07 01:47:48,157 INFO L78 Accepts]: Start accepts. Automaton has 15174 states and 22750 transitions. Word has length 190 [2024-11-07 01:47:48,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:48,157 INFO L471 AbstractCegarLoop]: Abstraction has 15174 states and 22750 transitions. [2024-11-07 01:47:48,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:48,157 INFO L276 IsEmpty]: Start isEmpty. Operand 15174 states and 22750 transitions. [2024-11-07 01:47:48,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:48,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:48,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:48,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-07 01:47:48,163 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:48,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:48,163 INFO L85 PathProgramCache]: Analyzing trace with hash 686864159, now seen corresponding path program 1 times [2024-11-07 01:47:48,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:48,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796417438] [2024-11-07 01:47:48,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:48,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:48,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:48,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:48,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:48,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:48,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:48,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:48,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796417438] [2024-11-07 01:47:48,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796417438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:48,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:48,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:48,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192644142] [2024-11-07 01:47:48,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:48,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:48,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:48,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:48,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:48,326 INFO L87 Difference]: Start difference. First operand 15174 states and 22750 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:53,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:53,376 INFO L93 Difference]: Finished difference Result 49159 states and 76546 transitions. [2024-11-07 01:47:53,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:53,376 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:47:53,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:53,454 INFO L225 Difference]: With dead ends: 49159 [2024-11-07 01:47:53,454 INFO L226 Difference]: Without dead ends: 36065 [2024-11-07 01:47:53,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:47:53,478 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 1918 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 3930 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1948 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 4033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:53,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1948 Valid, 3067 Invalid, 4033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3930 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:47:53,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36065 states. [2024-11-07 01:47:55,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36065 to 27911. [2024-11-07 01:47:55,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27911 states, 25640 states have (on average 1.5072542901716068) internal successors, (38646), 25724 states have internal predecessors, (38646), 1618 states have call successors, (1618), 534 states have call predecessors, (1618), 651 states have return successors, (2494), 1716 states have call predecessors, (2494), 1615 states have call successors, (2494) [2024-11-07 01:47:55,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27911 states to 27911 states and 42758 transitions. [2024-11-07 01:47:55,145 INFO L78 Accepts]: Start accepts. Automaton has 27911 states and 42758 transitions. Word has length 190 [2024-11-07 01:47:55,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:55,146 INFO L471 AbstractCegarLoop]: Abstraction has 27911 states and 42758 transitions. [2024-11-07 01:47:55,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:55,146 INFO L276 IsEmpty]: Start isEmpty. Operand 27911 states and 42758 transitions. [2024-11-07 01:47:55,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-07 01:47:55,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:55,155 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 01:47:55,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-07 01:47:55,155 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:55,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:55,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1082607455, now seen corresponding path program 1 times [2024-11-07 01:47:55,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:55,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043723299] [2024-11-07 01:47:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:55,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:55,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:55,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:47:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:55,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 01:47:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:55,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 01:47:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:55,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 01:47:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:55,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:55,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043723299] [2024-11-07 01:47:55,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043723299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:55,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:55,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:55,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165605163] [2024-11-07 01:47:55,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:55,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:55,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:55,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:55,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:55,310 INFO L87 Difference]: Start difference. First operand 27911 states and 42758 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:48:01,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:48:01,957 INFO L93 Difference]: Finished difference Result 95110 states and 149720 transitions. [2024-11-07 01:48:01,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:48:01,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-07 01:48:01,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:48:02,129 INFO L225 Difference]: With dead ends: 95110 [2024-11-07 01:48:02,129 INFO L226 Difference]: Without dead ends: 69279 [2024-11-07 01:48:02,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:48:02,184 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 1923 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 3912 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 4015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:48:02,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 3067 Invalid, 4015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3912 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:48:02,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69279 states.