./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-1.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.06.cil-1.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', '2299ca1c26d35c3e5f6d860495fd40e041317a8644bf02bee237b59c63427ec2'] 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.06.cil-1.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 2299ca1c26d35c3e5f6d860495fd40e041317a8644bf02bee237b59c63427ec2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:44:55,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:44:55,971 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:44:55,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:44:55,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:44:55,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:44:55,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:44:55,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:44:55,999 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:44:55,999 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:44:55,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:44:55,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:44:55,999 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:44:55,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:44:56,000 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:44:56,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:44:56,000 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:44:56,000 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:44:56,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:44:56,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:44:56,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:44:56,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:44:56,001 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:44:56,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:44:56,001 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:44:56,001 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:44:56,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:44:56,003 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:44:56,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:44:56,003 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:44:56,003 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:44:56,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:44:56,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:44:56,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:44:56,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:44:56,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:44:56,004 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:44:56,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:44:56,004 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:44:56,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:44:56,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:44:56,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:44:56,004 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 -> 2299ca1c26d35c3e5f6d860495fd40e041317a8644bf02bee237b59c63427ec2 [2024-11-07 01:44:56,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:44:56,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:44:56,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:44:56,219 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:44:56,219 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:44:56,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-1.c [2024-11-07 01:44:57,309 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:44:57,596 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:44:57,597 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-1.c [2024-11-07 01:44:57,608 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b22d49fb2/f92b5194a7cd40cba3724188d5b4f236/FLAG73da3b610 [2024-11-07 01:44:57,887 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b22d49fb2/f92b5194a7cd40cba3724188d5b4f236 [2024-11-07 01:44:57,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:44:57,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:44:57,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:44:57,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:44:57,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:44:57,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:44:57" (1/1) ... [2024-11-07 01:44:57,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b389d1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:57, skipping insertion in model container [2024-11-07 01:44:57,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:44:57" (1/1) ... [2024-11-07 01:44:57,916 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:44:58,005 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.06.cil-1.c[914,927] [2024-11-07 01:44:58,041 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.06.cil-1.c[7115,7128] [2024-11-07 01:44:58,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:44:58,097 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:44:58,104 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.06.cil-1.c[914,927] [2024-11-07 01:44:58,117 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.06.cil-1.c[7115,7128] [2024-11-07 01:44:58,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:44:58,160 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:44:58,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58 WrapperNode [2024-11-07 01:44:58,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:44:58,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:44:58,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:44:58,161 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:44:58,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (1/1) ... [2024-11-07 01:44:58,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (1/1) ... [2024-11-07 01:44:58,199 INFO L138 Inliner]: procedures = 65, calls = 76, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 714 [2024-11-07 01:44:58,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:44:58,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:44:58,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:44:58,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:44:58,208 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (1/1) ... [2024-11-07 01:44:58,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (1/1) ... [2024-11-07 01:44:58,213 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (1/1) ... [2024-11-07 01:44:58,227 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 01:44:58,227 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (1/1) ... [2024-11-07 01:44:58,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (1/1) ... [2024-11-07 01:44:58,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (1/1) ... [2024-11-07 01:44:58,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (1/1) ... [2024-11-07 01:44:58,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (1/1) ... [2024-11-07 01:44:58,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (1/1) ... [2024-11-07 01:44:58,253 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:44:58,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:44:58,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:44:58,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:44:58,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (1/1) ... [2024-11-07 01:44:58,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:44:58,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:44:58,283 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 01:44:58,286 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 01:44:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:44:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:44:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:44:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-07 01:44:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-07 01:44:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-07 01:44:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-07 01:44:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-07 01:44:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-07 01:44:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-07 01:44:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-07 01:44:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-07 01:44:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-07 01:44:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-07 01:44:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-07 01:44:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-07 01:44:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-07 01:44:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-07 01:44:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-07 01:44:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-07 01:44:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-07 01:44:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-07 01:44:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-07 01:44:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:44:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-07 01:44:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-07 01:44:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-07 01:44:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-07 01:44:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:44:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:44:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-07 01:44:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-07 01:44:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-07 01:44:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-07 01:44:58,398 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:44:58,400 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:44:59,029 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2024-11-07 01:44:59,030 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:44:59,045 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:44:59,047 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-07 01:44:59,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:44:59 BoogieIcfgContainer [2024-11-07 01:44:59,047 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:44:59,049 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:44:59,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:44:59,053 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:44:59,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:44:57" (1/3) ... [2024-11-07 01:44:59,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8ee133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:44:59, skipping insertion in model container [2024-11-07 01:44:59,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:58" (2/3) ... [2024-11-07 01:44:59,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8ee133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:44:59, skipping insertion in model container [2024-11-07 01:44:59,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:44:59" (3/3) ... [2024-11-07 01:44:59,055 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.06.cil-1.c [2024-11-07 01:44:59,065 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:44:59,066 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:44:59,113 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:44:59,123 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;@2c2d001, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:44:59,123 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:44:59,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 348 states, 294 states have (on average 1.598639455782313) internal successors, (470), 302 states have internal predecessors, (470), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-07 01:44:59,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:44:59,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:44:59,139 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 01:44:59,139 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:44:59,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:44:59,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1937150767, now seen corresponding path program 1 times [2024-11-07 01:44:59,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:44:59,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934217140] [2024-11-07 01:44:59,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:44:59,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:44:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:59,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:44:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:59,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:44:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:59,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:44:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:59,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:44:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:59,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:44:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:59,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:44:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:59,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:44:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:59,559 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 01:44:59,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:44:59,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934217140] [2024-11-07 01:44:59,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934217140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:44:59,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:44:59,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:44:59,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872905408] [2024-11-07 01:44:59,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:44:59,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:44:59,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:44:59,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:44:59,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:44:59,585 INFO L87 Difference]: Start difference. First operand has 348 states, 294 states have (on average 1.598639455782313) internal successors, (470), 302 states have internal predecessors, (470), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) 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 01:45:00,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:00,614 INFO L93 Difference]: Finished difference Result 808 states and 1254 transitions. [2024-11-07 01:45:00,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:45:00,617 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 01:45:00,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:00,625 INFO L225 Difference]: With dead ends: 808 [2024-11-07 01:45:00,628 INFO L226 Difference]: Without dead ends: 472 [2024-11-07 01:45:00,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:45:00,637 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 856 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:00,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1522 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 01:45:00,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-07 01:45:00,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 433. [2024-11-07 01:45:00,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 362 states have (on average 1.4834254143646408) internal successors, (537), 369 states have internal predecessors, (537), 47 states have call successors, (47), 22 states have call predecessors, (47), 22 states have return successors, (48), 44 states have call predecessors, (48), 43 states have call successors, (48) [2024-11-07 01:45:00,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 632 transitions. [2024-11-07 01:45:00,703 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 632 transitions. Word has length 65 [2024-11-07 01:45:00,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:00,704 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 632 transitions. [2024-11-07 01:45:00,705 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 01:45:00,705 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 632 transitions. [2024-11-07 01:45:00,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:45:00,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:00,708 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 01:45:00,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:45:00,709 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:00,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:00,711 INFO L85 PathProgramCache]: Analyzing trace with hash -258262127, now seen corresponding path program 1 times [2024-11-07 01:45:00,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:00,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668909917] [2024-11-07 01:45:00,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:00,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:00,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:00,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:45:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:00,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:45:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:00,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:45:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:00,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:45:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:00,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:45:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:00,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:45:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:00,874 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 01:45:00,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:00,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668909917] [2024-11-07 01:45:00,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668909917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:00,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:00,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:45:00,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764196368] [2024-11-07 01:45:00,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:00,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:45:00,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:00,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:45:00,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:45:00,879 INFO L87 Difference]: Start difference. First operand 433 states and 632 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 01:45:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:01,822 INFO L93 Difference]: Finished difference Result 780 states and 1109 transitions. [2024-11-07 01:45:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 01:45:01,822 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 01:45:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:01,826 INFO L225 Difference]: With dead ends: 780 [2024-11-07 01:45:01,826 INFO L226 Difference]: Without dead ends: 603 [2024-11-07 01:45:01,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-07 01:45:01,828 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 964 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 1757 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:01,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 1757 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:45:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-07 01:45:01,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 529. [2024-11-07 01:45:01,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 438 states have (on average 1.4634703196347032) internal successors, (641), 447 states have internal predecessors, (641), 58 states have call successors, (58), 29 states have call predecessors, (58), 31 states have return successors, (67), 56 states have call predecessors, (67), 54 states have call successors, (67) [2024-11-07 01:45:01,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 766 transitions. [2024-11-07 01:45:01,886 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 766 transitions. Word has length 65 [2024-11-07 01:45:01,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:01,887 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 766 transitions. [2024-11-07 01:45:01,887 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 01:45:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 766 transitions. [2024-11-07 01:45:01,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:45:01,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:01,892 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 01:45:01,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:45:01,893 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:01,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:01,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2008119059, now seen corresponding path program 1 times [2024-11-07 01:45:01,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:01,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104790148] [2024-11-07 01:45:01,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:01,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:01,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:01,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:45:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:01,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:45:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:02,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:45:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:02,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:45:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:02,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:45:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:02,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:45:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:02,110 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 01:45:02,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:02,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104790148] [2024-11-07 01:45:02,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104790148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:02,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:02,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:45:02,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403947177] [2024-11-07 01:45:02,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:02,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:45:02,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:02,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:45:02,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:45:02,112 INFO L87 Difference]: Start difference. First operand 529 states and 766 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 01:45:03,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:03,612 INFO L93 Difference]: Finished difference Result 2224 states and 3121 transitions. [2024-11-07 01:45:03,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-07 01:45:03,612 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 01:45:03,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:03,621 INFO L225 Difference]: With dead ends: 2224 [2024-11-07 01:45:03,621 INFO L226 Difference]: Without dead ends: 1957 [2024-11-07 01:45:03,623 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 01:45:03,623 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 2313 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:03,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 1651 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:45:03,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states. [2024-11-07 01:45:03,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1664. [2024-11-07 01:45:03,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 1334 states have (on average 1.371064467766117) internal successors, (1829), 1363 states have internal predecessors, (1829), 175 states have call successors, (175), 131 states have call predecessors, (175), 153 states have return successors, (251), 173 states have call predecessors, (251), 171 states have call successors, (251) [2024-11-07 01:45:03,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2255 transitions. [2024-11-07 01:45:03,735 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2255 transitions. Word has length 65 [2024-11-07 01:45:03,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:03,736 INFO L471 AbstractCegarLoop]: Abstraction has 1664 states and 2255 transitions. [2024-11-07 01:45:03,736 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 01:45:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2255 transitions. [2024-11-07 01:45:03,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:45:03,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:03,737 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 01:45:03,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:45:03,738 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:03,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:03,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1235399148, now seen corresponding path program 1 times [2024-11-07 01:45:03,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:03,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157709328] [2024-11-07 01:45:03,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:03,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:03,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:03,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:45:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:03,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:45:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:03,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:45:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:03,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:45:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:03,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:45:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:03,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:45:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:03,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:45:03,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:03,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157709328] [2024-11-07 01:45:03,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157709328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:03,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:03,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:45:03,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453029708] [2024-11-07 01:45:03,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:03,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:45:03,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:03,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:45:03,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:45:03,883 INFO L87 Difference]: Start difference. First operand 1664 states and 2255 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 01:45:04,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:04,701 INFO L93 Difference]: Finished difference Result 3324 states and 4505 transitions. [2024-11-07 01:45:04,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 01:45:04,703 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 01:45:04,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:04,714 INFO L225 Difference]: With dead ends: 3324 [2024-11-07 01:45:04,714 INFO L226 Difference]: Without dead ends: 1922 [2024-11-07 01:45:04,717 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 01:45:04,718 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 413 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:04,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 2035 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:45:04,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2024-11-07 01:45:04,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1709. [2024-11-07 01:45:04,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1370 states have (on average 1.3547445255474453) internal successors, (1856), 1399 states have internal predecessors, (1856), 175 states have call successors, (175), 131 states have call predecessors, (175), 162 states have return successors, (263), 182 states have call predecessors, (263), 171 states have call successors, (263) [2024-11-07 01:45:04,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2294 transitions. [2024-11-07 01:45:04,827 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2294 transitions. Word has length 65 [2024-11-07 01:45:04,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:04,827 INFO L471 AbstractCegarLoop]: Abstraction has 1709 states and 2294 transitions. [2024-11-07 01:45:04,827 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 01:45:04,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2294 transitions. [2024-11-07 01:45:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:45:04,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:04,830 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 01:45:04,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:45:04,830 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:04,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:04,830 INFO L85 PathProgramCache]: Analyzing trace with hash 150804246, now seen corresponding path program 1 times [2024-11-07 01:45:04,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:04,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278356628] [2024-11-07 01:45:04,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:04,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:04,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:04,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:45:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:04,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:45:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:04,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:45:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:04,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:45:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:04,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:45:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:04,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:45:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:04,986 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 01:45:04,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:04,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278356628] [2024-11-07 01:45:04,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278356628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:04,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:04,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:45:04,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189373974] [2024-11-07 01:45:04,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:04,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:45:04,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:04,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:45:04,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:45:04,988 INFO L87 Difference]: Start difference. First operand 1709 states and 2294 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 01:45:05,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:05,986 INFO L93 Difference]: Finished difference Result 3241 states and 4294 transitions. [2024-11-07 01:45:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 01:45:05,987 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 01:45:05,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:05,995 INFO L225 Difference]: With dead ends: 3241 [2024-11-07 01:45:05,995 INFO L226 Difference]: Without dead ends: 2014 [2024-11-07 01:45:05,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2024-11-07 01:45:05,999 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 982 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:05,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 1481 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:45:06,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2024-11-07 01:45:06,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1687. [2024-11-07 01:45:06,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1356 states have (on average 1.351032448377581) internal successors, (1832), 1379 states have internal predecessors, (1832), 175 states have call successors, (175), 131 states have call predecessors, (175), 154 states have return successors, (247), 180 states have call predecessors, (247), 171 states have call successors, (247) [2024-11-07 01:45:06,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2254 transitions. [2024-11-07 01:45:06,107 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2254 transitions. Word has length 65 [2024-11-07 01:45:06,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:06,107 INFO L471 AbstractCegarLoop]: Abstraction has 1687 states and 2254 transitions. [2024-11-07 01:45:06,107 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 01:45:06,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2254 transitions. [2024-11-07 01:45:06,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:45:06,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:06,108 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 01:45:06,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:45:06,109 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:06,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:06,109 INFO L85 PathProgramCache]: Analyzing trace with hash 16790740, now seen corresponding path program 1 times [2024-11-07 01:45:06,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:06,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837270670] [2024-11-07 01:45:06,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:06,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:06,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:06,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:45:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:06,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:45:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:06,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:45:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:06,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:45:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:06,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:45:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:06,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:45:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:06,222 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 01:45:06,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:06,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837270670] [2024-11-07 01:45:06,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837270670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:06,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:06,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:45:06,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910137794] [2024-11-07 01:45:06,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:06,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:45:06,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:06,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:45:06,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:45:06,224 INFO L87 Difference]: Start difference. First operand 1687 states and 2254 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 01:45:06,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:06,848 INFO L93 Difference]: Finished difference Result 4825 states and 6368 transitions. [2024-11-07 01:45:06,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 01:45:06,849 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 01:45:06,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:06,861 INFO L225 Difference]: With dead ends: 4825 [2024-11-07 01:45:06,861 INFO L226 Difference]: Without dead ends: 3403 [2024-11-07 01:45:06,863 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 01:45:06,864 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 1179 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:06,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 1017 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 01:45:06,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3403 states. [2024-11-07 01:45:07,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 3131. [2024-11-07 01:45:07,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 2469 states have (on average 1.3017415957877683) internal successors, (3214), 2521 states have internal predecessors, (3214), 340 states have call successors, (340), 254 states have call predecessors, (340), 320 states have return successors, (574), 362 states have call predecessors, (574), 336 states have call successors, (574) [2024-11-07 01:45:07,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 4128 transitions. [2024-11-07 01:45:07,048 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 4128 transitions. Word has length 65 [2024-11-07 01:45:07,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:07,049 INFO L471 AbstractCegarLoop]: Abstraction has 3131 states and 4128 transitions. [2024-11-07 01:45:07,049 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 01:45:07,049 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 4128 transitions. [2024-11-07 01:45:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-07 01:45:07,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:07,051 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 01:45:07,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:45:07,051 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:07,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:07,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1203450812, now seen corresponding path program 1 times [2024-11-07 01:45:07,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:07,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527694964] [2024-11-07 01:45:07,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:07,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:07,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:07,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:45:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:07,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:45:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:07,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:45:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:07,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:45:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:07,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:45:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:07,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:45:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:07,121 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 01:45:07,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:07,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527694964] [2024-11-07 01:45:07,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527694964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:07,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:07,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:45:07,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351238418] [2024-11-07 01:45:07,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:07,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:45:07,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:07,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:45:07,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:45:07,124 INFO L87 Difference]: Start difference. First operand 3131 states and 4128 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 01:45:07,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:07,854 INFO L93 Difference]: Finished difference Result 8363 states and 11038 transitions. [2024-11-07 01:45:07,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:45:07,855 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 01:45:07,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:07,876 INFO L225 Difference]: With dead ends: 8363 [2024-11-07 01:45:07,876 INFO L226 Difference]: Without dead ends: 5476 [2024-11-07 01:45:07,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:45:07,883 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 585 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:07,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 1247 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 01:45:07,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2024-11-07 01:45:08,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 4843. [2024-11-07 01:45:08,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4843 states, 3775 states have (on average 1.2863576158940397) internal successors, (4856), 3837 states have internal predecessors, (4856), 542 states have call successors, (542), 428 states have call predecessors, (542), 524 states have return successors, (926), 584 states have call predecessors, (926), 538 states have call successors, (926) [2024-11-07 01:45:08,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 6324 transitions. [2024-11-07 01:45:08,206 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 6324 transitions. Word has length 66 [2024-11-07 01:45:08,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:08,207 INFO L471 AbstractCegarLoop]: Abstraction has 4843 states and 6324 transitions. [2024-11-07 01:45:08,207 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 01:45:08,207 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 6324 transitions. [2024-11-07 01:45:08,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-07 01:45:08,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:08,210 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 01:45:08,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:45:08,210 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:08,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:08,210 INFO L85 PathProgramCache]: Analyzing trace with hash 503586546, now seen corresponding path program 1 times [2024-11-07 01:45:08,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:08,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802904762] [2024-11-07 01:45:08,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:08,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:08,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:08,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:45:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:08,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:45:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:08,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:45:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:08,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:45:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:08,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:45:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:08,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:45:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:08,308 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 01:45:08,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:08,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802904762] [2024-11-07 01:45:08,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802904762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:08,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:08,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:45:08,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165868470] [2024-11-07 01:45:08,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:08,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:45:08,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:08,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:45:08,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:45:08,310 INFO L87 Difference]: Start difference. First operand 4843 states and 6324 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 01:45:09,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:09,179 INFO L93 Difference]: Finished difference Result 6638 states and 8594 transitions. [2024-11-07 01:45:09,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 01:45:09,180 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 01:45:09,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:09,207 INFO L225 Difference]: With dead ends: 6638 [2024-11-07 01:45:09,207 INFO L226 Difference]: Without dead ends: 6635 [2024-11-07 01:45:09,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-07 01:45:09,209 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 1430 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:09,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 1039 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 01:45:09,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6635 states. [2024-11-07 01:45:09,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6635 to 5920. [2024-11-07 01:45:09,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5920 states, 4593 states have (on average 1.2747659481820162) internal successors, (5855), 4665 states have internal predecessors, (5855), 673 states have call successors, (673), 542 states have call predecessors, (673), 652 states have return successors, (1134), 719 states have call predecessors, (1134), 670 states have call successors, (1134) [2024-11-07 01:45:09,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5920 states to 5920 states and 7662 transitions. [2024-11-07 01:45:09,578 INFO L78 Accepts]: Start accepts. Automaton has 5920 states and 7662 transitions. Word has length 73 [2024-11-07 01:45:09,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:09,578 INFO L471 AbstractCegarLoop]: Abstraction has 5920 states and 7662 transitions. [2024-11-07 01:45:09,578 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 01:45:09,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5920 states and 7662 transitions. [2024-11-07 01:45:09,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-07 01:45:09,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:09,582 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 01:45:09,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:45:09,582 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:09,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:09,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1569714267, now seen corresponding path program 1 times [2024-11-07 01:45:09,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:09,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413968560] [2024-11-07 01:45:09,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:09,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:09,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:09,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:45:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:09,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:45:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:09,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:45:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:09,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:45:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:09,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:45:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:09,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:45:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:09,726 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 01:45:09,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:09,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413968560] [2024-11-07 01:45:09,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413968560] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:45:09,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463079495] [2024-11-07 01:45:09,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:09,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:45:09,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:45:09,729 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 01:45:09,731 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 01:45:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:09,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 01:45:09,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:45:10,025 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 01:45:10,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:45:10,114 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 01:45:10,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463079495] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:45:10,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:45:10,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-07 01:45:10,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432279537] [2024-11-07 01:45:10,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:45:10,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 01:45:10,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:10,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 01:45:10,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:45:10,116 INFO L87 Difference]: Start difference. First operand 5920 states and 7662 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 01:45:12,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:12,098 INFO L93 Difference]: Finished difference Result 13990 states and 17941 transitions. [2024-11-07 01:45:12,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 01:45:12,098 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 01:45:12,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:12,149 INFO L225 Difference]: With dead ends: 13990 [2024-11-07 01:45:12,150 INFO L226 Difference]: Without dead ends: 13987 [2024-11-07 01:45:12,156 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 01:45:12,156 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 1441 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:12,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1939 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:45:12,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13987 states. [2024-11-07 01:45:12,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13987 to 11280. [2024-11-07 01:45:12,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11280 states, 8748 states have (on average 1.2677183356195703) internal successors, (11090), 8881 states have internal predecessors, (11090), 1263 states have call successors, (1263), 1032 states have call predecessors, (1263), 1267 states have return successors, (2161), 1373 states have call predecessors, (2161), 1260 states have call successors, (2161) [2024-11-07 01:45:12,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11280 states to 11280 states and 14514 transitions. [2024-11-07 01:45:12,910 INFO L78 Accepts]: Start accepts. Automaton has 11280 states and 14514 transitions. Word has length 74 [2024-11-07 01:45:12,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:12,911 INFO L471 AbstractCegarLoop]: Abstraction has 11280 states and 14514 transitions. [2024-11-07 01:45:12,912 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 01:45:12,912 INFO L276 IsEmpty]: Start isEmpty. Operand 11280 states and 14514 transitions. [2024-11-07 01:45:12,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:45:12,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:12,914 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 01:45:12,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 01:45:13,118 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 01:45:13,119 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:13,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:13,119 INFO L85 PathProgramCache]: Analyzing trace with hash -972919246, now seen corresponding path program 2 times [2024-11-07 01:45:13,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:13,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416428351] [2024-11-07 01:45:13,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:13,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:13,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:13,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:45:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:13,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:45:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:13,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:45:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:13,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:45:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:13,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:45:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:13,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:45:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:13,176 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 01:45:13,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:13,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416428351] [2024-11-07 01:45:13,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416428351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:13,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:13,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:45:13,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748917388] [2024-11-07 01:45:13,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:13,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:45:13,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:13,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:45:13,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:45:13,177 INFO L87 Difference]: Start difference. First operand 11280 states and 14514 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 01:45:14,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:14,083 INFO L93 Difference]: Finished difference Result 18125 states and 23408 transitions. [2024-11-07 01:45:14,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 01:45:14,084 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 01:45:14,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:14,114 INFO L225 Difference]: With dead ends: 18125 [2024-11-07 01:45:14,115 INFO L226 Difference]: Without dead ends: 8001 [2024-11-07 01:45:14,138 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 01:45:14,138 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 845 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:14,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 1128 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 01:45:14,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8001 states. [2024-11-07 01:45:14,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8001 to 7268. [2024-11-07 01:45:14,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7268 states, 5656 states have (on average 1.2457567185289957) internal successors, (7046), 5739 states have internal predecessors, (7046), 813 states have call successors, (813), 656 states have call predecessors, (813), 797 states have return successors, (1315), 879 states have call predecessors, (1315), 810 states have call successors, (1315) [2024-11-07 01:45:14,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7268 states to 7268 states and 9174 transitions. [2024-11-07 01:45:14,734 INFO L78 Accepts]: Start accepts. Automaton has 7268 states and 9174 transitions. Word has length 77 [2024-11-07 01:45:14,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:14,734 INFO L471 AbstractCegarLoop]: Abstraction has 7268 states and 9174 transitions. [2024-11-07 01:45:14,735 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 01:45:14,735 INFO L276 IsEmpty]: Start isEmpty. Operand 7268 states and 9174 transitions. [2024-11-07 01:45:14,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 01:45:14,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:14,738 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 01:45:14,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:45:14,738 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:14,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:14,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1272990263, now seen corresponding path program 1 times [2024-11-07 01:45:14,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:14,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057952921] [2024-11-07 01:45:14,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:14,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:14,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:14,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:45:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:14,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:45:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:14,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:45:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:14,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:45:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:14,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:45:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:14,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:45:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:14,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 01:45:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:14,823 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 01:45:14,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:14,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057952921] [2024-11-07 01:45:14,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057952921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:14,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:14,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:45:14,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785470540] [2024-11-07 01:45:14,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:14,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:45:14,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:14,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:45:14,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:45:14,824 INFO L87 Difference]: Start difference. First operand 7268 states and 9174 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 01:45:16,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:16,360 INFO L93 Difference]: Finished difference Result 21844 states and 27701 transitions. [2024-11-07 01:45:16,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 01:45:16,361 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 01:45:16,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:16,403 INFO L225 Difference]: With dead ends: 21844 [2024-11-07 01:45:16,403 INFO L226 Difference]: Without dead ends: 14844 [2024-11-07 01:45:16,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2024-11-07 01:45:16,418 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 824 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:16,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 1605 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:45:16,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14844 states. [2024-11-07 01:45:17,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14844 to 13688. [2024-11-07 01:45:17,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13688 states, 10500 states have (on average 1.219142857142857) internal successors, (12801), 10691 states have internal predecessors, (12801), 1585 states have call successors, (1585), 1260 states have call predecessors, (1585), 1601 states have return successors, (2932), 1749 states have call predecessors, (2932), 1582 states have call successors, (2932) [2024-11-07 01:45:17,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13688 states to 13688 states and 17318 transitions. [2024-11-07 01:45:17,282 INFO L78 Accepts]: Start accepts. Automaton has 13688 states and 17318 transitions. Word has length 84 [2024-11-07 01:45:17,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:17,282 INFO L471 AbstractCegarLoop]: Abstraction has 13688 states and 17318 transitions. [2024-11-07 01:45:17,282 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 01:45:17,283 INFO L276 IsEmpty]: Start isEmpty. Operand 13688 states and 17318 transitions. [2024-11-07 01:45:17,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 01:45:17,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:17,288 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 01:45:17,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:45:17,288 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:17,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:17,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1493425648, now seen corresponding path program 1 times [2024-11-07 01:45:17,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:17,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841108721] [2024-11-07 01:45:17,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:17,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:17,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:17,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:45:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:17,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:45:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:17,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:45:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:17,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:45:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:17,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:45:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:17,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:45:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:17,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-07 01:45:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:17,393 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 01:45:17,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:17,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841108721] [2024-11-07 01:45:17,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841108721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:17,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:17,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:45:17,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396883383] [2024-11-07 01:45:17,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:17,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:45:17,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:17,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:45:17,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:45:17,396 INFO L87 Difference]: Start difference. First operand 13688 states and 17318 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 01:45:19,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:19,668 INFO L93 Difference]: Finished difference Result 27068 states and 34034 transitions. [2024-11-07 01:45:19,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 01:45:19,669 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 01:45:19,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:19,722 INFO L225 Difference]: With dead ends: 27068 [2024-11-07 01:45:19,722 INFO L226 Difference]: Without dead ends: 14543 [2024-11-07 01:45:19,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-07 01:45:19,752 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 1873 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1913 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:19,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1913 Valid, 1376 Invalid, 1592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [391 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 01:45:19,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14543 states. [2024-11-07 01:45:20,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14543 to 13562. [2024-11-07 01:45:20,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13562 states, 10404 states have (on average 1.2011726259131104) internal successors, (12497), 10613 states have internal predecessors, (12497), 1555 states have call successors, (1555), 1260 states have call predecessors, (1555), 1601 states have return successors, (2681), 1701 states have call predecessors, (2681), 1552 states have call successors, (2681) [2024-11-07 01:45:20,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13562 states to 13562 states and 16733 transitions. [2024-11-07 01:45:20,632 INFO L78 Accepts]: Start accepts. Automaton has 13562 states and 16733 transitions. Word has length 93 [2024-11-07 01:45:20,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:20,632 INFO L471 AbstractCegarLoop]: Abstraction has 13562 states and 16733 transitions. [2024-11-07 01:45:20,633 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 01:45:20,633 INFO L276 IsEmpty]: Start isEmpty. Operand 13562 states and 16733 transitions. [2024-11-07 01:45:20,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 01:45:20,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:20,641 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] [2024-11-07 01:45:20,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:45:20,642 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:20,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:20,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1849447866, now seen corresponding path program 1 times [2024-11-07 01:45:20,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:20,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326121490] [2024-11-07 01:45:20,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:20,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:20,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:20,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:45:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:20,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:45:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:20,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:45:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:20,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:45:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:20,732 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 01:45:20,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:20,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326121490] [2024-11-07 01:45:20,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326121490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:20,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:20,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:45:20,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100059950] [2024-11-07 01:45:20,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:20,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:45:20,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:20,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:45:20,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:45:20,734 INFO L87 Difference]: Start difference. First operand 13562 states and 16733 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 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 01:45:22,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:22,866 INFO L93 Difference]: Finished difference Result 13867 states and 17212 transitions. [2024-11-07 01:45:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:45:22,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 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 113 [2024-11-07 01:45:22,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:22,910 INFO L225 Difference]: With dead ends: 13867 [2024-11-07 01:45:22,910 INFO L226 Difference]: Without dead ends: 13638 [2024-11-07 01:45:22,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:45:22,917 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 705 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:22,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 742 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:45:22,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13638 states. [2024-11-07 01:45:24,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13638 to 13562. [2024-11-07 01:45:24,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13562 states, 10404 states have (on average 1.2010765090349866) internal successors, (12496), 10613 states have internal predecessors, (12496), 1555 states have call successors, (1555), 1260 states have call predecessors, (1555), 1601 states have return successors, (2681), 1701 states have call predecessors, (2681), 1552 states have call successors, (2681) [2024-11-07 01:45:24,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13562 states to 13562 states and 16732 transitions. [2024-11-07 01:45:24,677 INFO L78 Accepts]: Start accepts. Automaton has 13562 states and 16732 transitions. Word has length 113 [2024-11-07 01:45:24,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:24,677 INFO L471 AbstractCegarLoop]: Abstraction has 13562 states and 16732 transitions. [2024-11-07 01:45:24,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 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 01:45:24,677 INFO L276 IsEmpty]: Start isEmpty. Operand 13562 states and 16732 transitions. [2024-11-07 01:45:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 01:45:24,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:24,684 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] [2024-11-07 01:45:24,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 01:45:24,685 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:24,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:24,685 INFO L85 PathProgramCache]: Analyzing trace with hash 818406968, now seen corresponding path program 1 times [2024-11-07 01:45:24,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:24,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21360304] [2024-11-07 01:45:24,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:24,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:24,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:24,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:45:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:24,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:45:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:24,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:45:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:24,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:45:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:24,805 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 01:45:24,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:24,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21360304] [2024-11-07 01:45:24,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21360304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:24,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:24,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:45:24,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525672322] [2024-11-07 01:45:24,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:24,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:45:24,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:24,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:45:24,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:45:24,807 INFO L87 Difference]: Start difference. First operand 13562 states and 16732 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:27,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:27,527 INFO L93 Difference]: Finished difference Result 14187 states and 17726 transitions. [2024-11-07 01:45:27,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:45:27,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-07 01:45:27,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:27,568 INFO L225 Difference]: With dead ends: 14187 [2024-11-07 01:45:27,568 INFO L226 Difference]: Without dead ends: 13960 [2024-11-07 01:45:27,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:45:27,574 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 1070 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 2345 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 2437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:27,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1907 Invalid, 2437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2345 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:45:27,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13960 states. [2024-11-07 01:45:28,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13960 to 13797. [2024-11-07 01:45:28,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13797 states, 10614 states have (on average 1.2082155643489731) internal successors, (12824), 10825 states have internal predecessors, (12824), 1572 states have call successors, (1572), 1266 states have call predecessors, (1572), 1609 states have return successors, (2705), 1719 states have call predecessors, (2705), 1569 states have call successors, (2705) [2024-11-07 01:45:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13797 states to 13797 states and 17101 transitions. [2024-11-07 01:45:28,982 INFO L78 Accepts]: Start accepts. Automaton has 13797 states and 17101 transitions. Word has length 113 [2024-11-07 01:45:28,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:28,982 INFO L471 AbstractCegarLoop]: Abstraction has 13797 states and 17101 transitions. [2024-11-07 01:45:28,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:28,983 INFO L276 IsEmpty]: Start isEmpty. Operand 13797 states and 17101 transitions. [2024-11-07 01:45:28,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 01:45:28,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:28,990 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] [2024-11-07 01:45:28,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 01:45:28,990 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:28,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:28,990 INFO L85 PathProgramCache]: Analyzing trace with hash -2125175110, now seen corresponding path program 1 times [2024-11-07 01:45:28,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:28,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678614244] [2024-11-07 01:45:28,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:28,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:29,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:29,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:45:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:29,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:45:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:29,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:45:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:29,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:45:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:29,112 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 01:45:29,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:29,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678614244] [2024-11-07 01:45:29,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678614244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:29,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:29,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:45:29,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170513383] [2024-11-07 01:45:29,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:29,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:45:29,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:29,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:45:29,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:45:29,114 INFO L87 Difference]: Start difference. First operand 13797 states and 17101 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:32,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:32,420 INFO L93 Difference]: Finished difference Result 14982 states and 18969 transitions. [2024-11-07 01:45:32,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:45:32,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-07 01:45:32,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:32,470 INFO L225 Difference]: With dead ends: 14982 [2024-11-07 01:45:32,471 INFO L226 Difference]: Without dead ends: 14522 [2024-11-07 01:45:32,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:45:32,481 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 1095 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 2141 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:32,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 1801 Invalid, 2241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2141 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:45:32,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14522 states. [2024-11-07 01:45:33,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14522 to 14231. [2024-11-07 01:45:33,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14231 states, 11004 states have (on average 1.2196474009451108) internal successors, (13421), 11217 states have internal predecessors, (13421), 1602 states have call successors, (1602), 1278 states have call predecessors, (1602), 1623 states have return successors, (2745), 1751 states have call predecessors, (2745), 1599 states have call successors, (2745) [2024-11-07 01:45:34,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14231 states to 14231 states and 17768 transitions. [2024-11-07 01:45:34,033 INFO L78 Accepts]: Start accepts. Automaton has 14231 states and 17768 transitions. Word has length 113 [2024-11-07 01:45:34,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:34,033 INFO L471 AbstractCegarLoop]: Abstraction has 14231 states and 17768 transitions. [2024-11-07 01:45:34,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:34,033 INFO L276 IsEmpty]: Start isEmpty. Operand 14231 states and 17768 transitions. [2024-11-07 01:45:34,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 01:45:34,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:34,040 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] [2024-11-07 01:45:34,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 01:45:34,040 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:34,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:34,040 INFO L85 PathProgramCache]: Analyzing trace with hash 550817272, now seen corresponding path program 1 times [2024-11-07 01:45:34,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:34,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583114497] [2024-11-07 01:45:34,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:34,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:34,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:34,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:45:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:34,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:45:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:34,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:45:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:34,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:45:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:34,159 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 01:45:34,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:34,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583114497] [2024-11-07 01:45:34,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583114497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:34,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:34,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:45:34,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544686431] [2024-11-07 01:45:34,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:34,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:45:34,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:34,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:45:34,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:45:34,160 INFO L87 Difference]: Start difference. First operand 14231 states and 17768 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:37,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:37,135 INFO L93 Difference]: Finished difference Result 16538 states and 21396 transitions. [2024-11-07 01:45:37,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:45:37,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-07 01:45:37,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:37,182 INFO L225 Difference]: With dead ends: 16538 [2024-11-07 01:45:37,182 INFO L226 Difference]: Without dead ends: 15644 [2024-11-07 01:45:37,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:45:37,195 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 1070 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:37,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1902 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2325 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:45:37,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15644 states. [2024-11-07 01:45:38,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15644 to 15101. [2024-11-07 01:45:38,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15101 states, 11786 states have (on average 1.2402002375699983) internal successors, (14617), 12003 states have internal predecessors, (14617), 1662 states have call successors, (1662), 1302 states have call predecessors, (1662), 1651 states have return successors, (2831), 1815 states have call predecessors, (2831), 1659 states have call successors, (2831) [2024-11-07 01:45:38,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15101 states to 15101 states and 19110 transitions. [2024-11-07 01:45:38,769 INFO L78 Accepts]: Start accepts. Automaton has 15101 states and 19110 transitions. Word has length 113 [2024-11-07 01:45:38,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:38,769 INFO L471 AbstractCegarLoop]: Abstraction has 15101 states and 19110 transitions. [2024-11-07 01:45:38,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:38,770 INFO L276 IsEmpty]: Start isEmpty. Operand 15101 states and 19110 transitions. [2024-11-07 01:45:38,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 01:45:38,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:38,776 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] [2024-11-07 01:45:38,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 01:45:38,776 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:38,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:38,776 INFO L85 PathProgramCache]: Analyzing trace with hash -332691718, now seen corresponding path program 1 times [2024-11-07 01:45:38,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:38,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690638719] [2024-11-07 01:45:38,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:38,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:38,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:38,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:45:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:38,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:45:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:38,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:45:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:38,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:45:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:38,888 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 01:45:38,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:38,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690638719] [2024-11-07 01:45:38,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690638719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:38,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:38,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:45:38,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538005953] [2024-11-07 01:45:38,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:38,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:45:38,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:38,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:45:38,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:45:38,890 INFO L87 Difference]: Start difference. First operand 15101 states and 19110 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:41,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:41,776 INFO L93 Difference]: Finished difference Result 19648 states and 26264 transitions. [2024-11-07 01:45:41,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:45:41,776 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-07 01:45:41,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:41,824 INFO L225 Difference]: With dead ends: 19648 [2024-11-07 01:45:41,825 INFO L226 Difference]: Without dead ends: 17884 [2024-11-07 01:45:41,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:45:41,834 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 1070 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 2326 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 2420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:41,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1904 Invalid, 2420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2326 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:45:41,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17884 states. [2024-11-07 01:45:43,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17884 to 16847. [2024-11-07 01:45:43,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16847 states, 13356 states have (on average 1.2741090146750524) internal successors, (17017), 13581 states have internal predecessors, (17017), 1782 states have call successors, (1782), 1350 states have call predecessors, (1782), 1707 states have return successors, (3021), 1943 states have call predecessors, (3021), 1779 states have call successors, (3021) [2024-11-07 01:45:43,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16847 states to 16847 states and 21820 transitions. [2024-11-07 01:45:43,422 INFO L78 Accepts]: Start accepts. Automaton has 16847 states and 21820 transitions. Word has length 113 [2024-11-07 01:45:43,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:43,422 INFO L471 AbstractCegarLoop]: Abstraction has 16847 states and 21820 transitions. [2024-11-07 01:45:43,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:43,423 INFO L276 IsEmpty]: Start isEmpty. Operand 16847 states and 21820 transitions. [2024-11-07 01:45:43,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 01:45:43,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:43,430 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] [2024-11-07 01:45:43,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 01:45:43,430 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:43,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:43,431 INFO L85 PathProgramCache]: Analyzing trace with hash -361192008, now seen corresponding path program 1 times [2024-11-07 01:45:43,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:43,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925950687] [2024-11-07 01:45:43,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:43,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:43,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:43,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:45:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:43,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:45:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:43,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:45:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:43,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:45:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:43,534 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 01:45:43,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:43,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925950687] [2024-11-07 01:45:43,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925950687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:43,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:43,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:45:43,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101775463] [2024-11-07 01:45:43,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:43,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:45:43,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:43,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:45:43,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:45:43,536 INFO L87 Difference]: Start difference. First operand 16847 states and 21820 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:46,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:46,646 INFO L93 Difference]: Finished difference Result 25866 states and 36056 transitions. [2024-11-07 01:45:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:45:46,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-07 01:45:46,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:46,702 INFO L225 Difference]: With dead ends: 25866 [2024-11-07 01:45:46,702 INFO L226 Difference]: Without dead ends: 22356 [2024-11-07 01:45:46,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:45:46,716 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 1070 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:46,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1901 Invalid, 2396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:45:46,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22356 states. [2024-11-07 01:45:48,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22356 to 20353. [2024-11-07 01:45:48,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20353 states, 16510 states have (on average 1.3226529376135676) internal successors, (21837), 16751 states have internal predecessors, (21837), 2022 states have call successors, (2022), 1446 states have call predecessors, (2022), 1819 states have return successors, (3455), 2199 states have call predecessors, (3455), 2019 states have call successors, (3455) [2024-11-07 01:45:48,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20353 states to 20353 states and 27314 transitions. [2024-11-07 01:45:48,523 INFO L78 Accepts]: Start accepts. Automaton has 20353 states and 27314 transitions. Word has length 113 [2024-11-07 01:45:48,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:48,524 INFO L471 AbstractCegarLoop]: Abstraction has 20353 states and 27314 transitions. [2024-11-07 01:45:48,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:48,524 INFO L276 IsEmpty]: Start isEmpty. Operand 20353 states and 27314 transitions. [2024-11-07 01:45:48,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 01:45:48,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:48,534 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] [2024-11-07 01:45:48,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 01:45:48,534 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:48,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:48,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1993193274, now seen corresponding path program 1 times [2024-11-07 01:45:48,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:48,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53016183] [2024-11-07 01:45:48,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:48,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:48,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:48,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:45:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:48,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:45:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:48,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:45:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:48,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:45:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:48,639 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 01:45:48,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:48,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53016183] [2024-11-07 01:45:48,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53016183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:48,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:48,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:45:48,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822555712] [2024-11-07 01:45:48,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:48,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:45:48,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:48,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:45:48,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:45:48,642 INFO L87 Difference]: Start difference. First operand 20353 states and 27314 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:52,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:52,086 INFO L93 Difference]: Finished difference Result 38300 states and 55828 transitions. [2024-11-07 01:45:52,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:45:52,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-07 01:45:52,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:52,166 INFO L225 Difference]: With dead ends: 38300 [2024-11-07 01:45:52,166 INFO L226 Difference]: Without dead ends: 31284 [2024-11-07 01:45:52,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:45:52,187 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 1070 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:52,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1904 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:45:52,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31284 states. [2024-11-07 01:45:54,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31284 to 27395. [2024-11-07 01:45:54,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27395 states, 22848 states have (on average 1.3795955882352942) internal successors, (31521), 23121 states have internal predecessors, (31521), 2502 states have call successors, (2502), 1638 states have call predecessors, (2502), 2043 states have return successors, (4485), 2711 states have call predecessors, (4485), 2499 states have call successors, (4485) [2024-11-07 01:45:54,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27395 states to 27395 states and 38508 transitions. [2024-11-07 01:45:54,650 INFO L78 Accepts]: Start accepts. Automaton has 27395 states and 38508 transitions. Word has length 113 [2024-11-07 01:45:54,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:45:54,650 INFO L471 AbstractCegarLoop]: Abstraction has 27395 states and 38508 transitions. [2024-11-07 01:45:54,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:54,650 INFO L276 IsEmpty]: Start isEmpty. Operand 27395 states and 38508 transitions. [2024-11-07 01:45:54,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 01:45:54,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:45:54,663 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] [2024-11-07 01:45:54,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 01:45:54,664 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:45:54,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:45:54,664 INFO L85 PathProgramCache]: Analyzing trace with hash -424710792, now seen corresponding path program 1 times [2024-11-07 01:45:54,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:45:54,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676687174] [2024-11-07 01:45:54,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:45:54,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:45:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:54,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:45:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:54,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:45:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:54,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:45:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:54,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:45:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:54,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:45:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:45:54,765 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 01:45:54,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:45:54,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676687174] [2024-11-07 01:45:54,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676687174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:45:54,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:45:54,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:45:54,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72363559] [2024-11-07 01:45:54,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:45:54,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:45:54,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:45:54,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:45:54,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:45:54,767 INFO L87 Difference]: Start difference. First operand 27395 states and 38508 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:45:59,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:45:59,396 INFO L93 Difference]: Finished difference Result 69118 states and 104930 transitions. [2024-11-07 01:45:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:45:59,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-07 01:45:59,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:45:59,574 INFO L225 Difference]: With dead ends: 69118 [2024-11-07 01:45:59,574 INFO L226 Difference]: Without dead ends: 55060 [2024-11-07 01:45:59,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:45:59,625 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 1139 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 2687 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 2783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:45:59,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1892 Invalid, 2783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2687 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:45:59,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55060 states. [2024-11-07 01:46:02,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55060 to 41349. [2024-11-07 01:46:02,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41349 states, 35458 states have (on average 1.4341756444243894) internal successors, (50853), 35795 states have internal predecessors, (50853), 3398 states have call successors, (3398), 2022 states have call predecessors, (3398), 2491 states have return successors, (6967), 3671 states have call predecessors, (6967), 3395 states have call successors, (6967) [2024-11-07 01:46:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41349 states to 41349 states and 61218 transitions. [2024-11-07 01:46:02,795 INFO L78 Accepts]: Start accepts. Automaton has 41349 states and 61218 transitions. Word has length 113 [2024-11-07 01:46:02,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:02,796 INFO L471 AbstractCegarLoop]: Abstraction has 41349 states and 61218 transitions. [2024-11-07 01:46:02,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:46:02,796 INFO L276 IsEmpty]: Start isEmpty. Operand 41349 states and 61218 transitions. [2024-11-07 01:46:02,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 01:46:02,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:02,815 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] [2024-11-07 01:46:02,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 01:46:02,815 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:02,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:02,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1195444358, now seen corresponding path program 1 times [2024-11-07 01:46:02,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:02,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129704009] [2024-11-07 01:46:02,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:02,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:02,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:02,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:46:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:02,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:46:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:02,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:46:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:02,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:46:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:02,908 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 01:46:02,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:02,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129704009] [2024-11-07 01:46:02,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129704009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:02,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:02,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:02,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030602093] [2024-11-07 01:46:02,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:02,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:02,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:02,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:02,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:02,911 INFO L87 Difference]: Start difference. First operand 41349 states and 61218 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:46:09,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:09,749 INFO L93 Difference]: Finished difference Result 120899 states and 190134 transitions. [2024-11-07 01:46:09,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:46:09,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-07 01:46:09,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:10,043 INFO L225 Difference]: With dead ends: 120899 [2024-11-07 01:46:10,043 INFO L226 Difference]: Without dead ends: 92887 [2024-11-07 01:46:10,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:46:10,128 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 1132 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 2542 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 2638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:10,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 1892 Invalid, 2638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2542 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:46:10,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92887 states. [2024-11-07 01:46:14,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92887 to 69319. [2024-11-07 01:46:14,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69319 states, 60804 states have (on average 1.477419248733636) internal successors, (89833), 61269 states have internal predecessors, (89833), 5126 states have call successors, (5126), 2790 states have call predecessors, (5126), 3387 states have return successors, (13325), 5527 states have call predecessors, (13325), 5123 states have call successors, (13325) [2024-11-07 01:46:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69319 states to 69319 states and 108284 transitions. [2024-11-07 01:46:14,835 INFO L78 Accepts]: Start accepts. Automaton has 69319 states and 108284 transitions. Word has length 113 [2024-11-07 01:46:14,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:14,836 INFO L471 AbstractCegarLoop]: Abstraction has 69319 states and 108284 transitions. [2024-11-07 01:46:14,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:46:14,836 INFO L276 IsEmpty]: Start isEmpty. Operand 69319 states and 108284 transitions. [2024-11-07 01:46:14,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 01:46:14,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:14,867 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] [2024-11-07 01:46:14,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 01:46:14,867 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:14,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:14,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1781720580, now seen corresponding path program 1 times [2024-11-07 01:46:14,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:14,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881154647] [2024-11-07 01:46:14,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:14,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:14,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:14,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:46:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:14,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:46:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:14,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:46:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:14,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:46:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:14,965 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 01:46:14,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:14,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881154647] [2024-11-07 01:46:14,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881154647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:14,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:14,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:14,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837307343] [2024-11-07 01:46:14,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:14,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:14,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:14,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:14,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:14,966 INFO L87 Difference]: Start difference. First operand 69319 states and 108284 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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)