./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.11.cil-2.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/systemc/token_ring.11.cil-2.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', 'c5f603027c62ff37561a520351662dbe2fd253b52e04e36028cb9a624978ef8e'] 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/systemc/token_ring.11.cil-2.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 c5f603027c62ff37561a520351662dbe2fd253b52e04e36028cb9a624978ef8e --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 23:58:36,507 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 23:58:36,611 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 23:58:36,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 23:58:36,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 23:58:36,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 23:58:36,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 23:58:36,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 23:58:36,646 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 23:58:36,646 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 23:58:36,646 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 23:58:36,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 23:58:36,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 23:58:36,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 23:58:36,648 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 23:58:36,648 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 23:58:36,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 23:58:36,649 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 23:58:36,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 23:58:36,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 23:58:36,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 23:58:36,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 23:58:36,649 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 23:58:36,649 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 23:58:36,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 23:58:36,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 23:58:36,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 23:58:36,650 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 23:58:36,650 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 23:58:36,650 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 -> c5f603027c62ff37561a520351662dbe2fd253b52e04e36028cb9a624978ef8e [2024-11-06 23:58:36,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 23:58:36,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 23:58:36,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 23:58:36,940 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 23:58:36,940 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 23:58:36,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.11.cil-2.c [2024-11-06 23:58:38,236 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 23:58:38,505 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 23:58:38,508 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.11.cil-2.c [2024-11-06 23:58:38,525 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/267af533e/53d794a72c534bcd8e3f67584c17b8d1/FLAGa11f52ec4 [2024-11-06 23:58:38,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/267af533e/53d794a72c534bcd8e3f67584c17b8d1 [2024-11-06 23:58:38,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 23:58:38,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 23:58:38,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 23:58:38,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 23:58:38,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 23:58:38,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:58:38" (1/1) ... [2024-11-06 23:58:38,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e83412a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:38, skipping insertion in model container [2024-11-06 23:58:38,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:58:38" (1/1) ... [2024-11-06 23:58:38,599 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 23:58:38,732 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/systemc/token_ring.11.cil-2.c[671,684] [2024-11-06 23:58:38,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 23:58:38,885 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 23:58:38,896 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/systemc/token_ring.11.cil-2.c[671,684] [2024-11-06 23:58:38,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 23:58:39,008 INFO L204 MainTranslator]: Completed translation [2024-11-06 23:58:39,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39 WrapperNode [2024-11-06 23:58:39,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 23:58:39,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 23:58:39,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 23:58:39,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 23:58:39,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (1/1) ... [2024-11-06 23:58:39,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (1/1) ... [2024-11-06 23:58:39,089 INFO L138 Inliner]: procedures = 50, calls = 64, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 819 [2024-11-06 23:58:39,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 23:58:39,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 23:58:39,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 23:58:39,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 23:58:39,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (1/1) ... [2024-11-06 23:58:39,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (1/1) ... [2024-11-06 23:58:39,109 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (1/1) ... [2024-11-06 23:58:39,139 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-06 23:58:39,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (1/1) ... [2024-11-06 23:58:39,143 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (1/1) ... [2024-11-06 23:58:39,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (1/1) ... [2024-11-06 23:58:39,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (1/1) ... [2024-11-06 23:58:39,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (1/1) ... [2024-11-06 23:58:39,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (1/1) ... [2024-11-06 23:58:39,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 23:58:39,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 23:58:39,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 23:58:39,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 23:58:39,201 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (1/1) ... [2024-11-06 23:58:39,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 23:58:39,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 23:58:39,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 23:58:39,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 23:58:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 23:58:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-06 23:58:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-06 23:58:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-06 23:58:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-06 23:58:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-06 23:58:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-06 23:58:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-06 23:58:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-06 23:58:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-06 23:58:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-06 23:58:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-06 23:58:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-06 23:58:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 23:58:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 23:58:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 23:58:39,360 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 23:58:39,362 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 23:58:40,190 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-06 23:58:40,191 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 23:58:40,215 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 23:58:40,216 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-06 23:58:40,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:58:40 BoogieIcfgContainer [2024-11-06 23:58:40,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 23:58:40,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 23:58:40,219 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 23:58:40,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 23:58:40,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:58:38" (1/3) ... [2024-11-06 23:58:40,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcd6dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:58:40, skipping insertion in model container [2024-11-06 23:58:40,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:39" (2/3) ... [2024-11-06 23:58:40,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcd6dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:58:40, skipping insertion in model container [2024-11-06 23:58:40,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:58:40" (3/3) ... [2024-11-06 23:58:40,228 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.11.cil-2.c [2024-11-06 23:58:40,265 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 23:58:40,265 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 23:58:40,335 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 23:58:40,349 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;@28febeef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 23:58:40,349 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 23:58:40,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 336 states have (on average 1.6369047619047619) internal successors, (550), 338 states have internal predecessors, (550), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-06 23:58:40,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-06 23:58:40,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:58:40,375 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:58:40,376 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:58:40,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:58:40,381 INFO L85 PathProgramCache]: Analyzing trace with hash -622938705, now seen corresponding path program 1 times [2024-11-06 23:58:40,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:58:40,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862808137] [2024-11-06 23:58:40,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:58:40,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:58:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:40,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:58:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:40,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:58:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:40,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 23:58:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:41,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-06 23:58:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:41,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 23:58:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:41,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:58:41,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:58:41,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862808137] [2024-11-06 23:58:41,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862808137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:58:41,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:58:41,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 23:58:41,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101677024] [2024-11-06 23:58:41,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:58:41,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 23:58:41,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:58:41,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 23:58:41,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 23:58:41,107 INFO L87 Difference]: Start difference. First operand has 369 states, 336 states have (on average 1.6369047619047619) internal successors, (550), 338 states have internal predecessors, (550), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:43,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:58:43,140 INFO L93 Difference]: Finished difference Result 860 states and 1413 transitions. [2024-11-06 23:58:43,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 23:58:43,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-06 23:58:43,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:58:43,154 INFO L225 Difference]: With dead ends: 860 [2024-11-06 23:58:43,154 INFO L226 Difference]: Without dead ends: 495 [2024-11-06 23:58:43,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:58:43,161 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 973 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-06 23:58:43,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 732 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-06 23:58:43,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-06 23:58:43,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 364. [2024-11-06 23:58:43,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 332 states have (on average 1.5512048192771084) internal successors, (515), 333 states have internal predecessors, (515), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-06 23:58:43,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 565 transitions. [2024-11-06 23:58:43,239 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 565 transitions. Word has length 166 [2024-11-06 23:58:43,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:58:43,240 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 565 transitions. [2024-11-06 23:58:43,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:43,241 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 565 transitions. [2024-11-06 23:58:43,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-06 23:58:43,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:58:43,246 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:58:43,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 23:58:43,248 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:58:43,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:58:43,248 INFO L85 PathProgramCache]: Analyzing trace with hash -967766867, now seen corresponding path program 1 times [2024-11-06 23:58:43,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:58:43,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619175588] [2024-11-06 23:58:43,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:58:43,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:58:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:43,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:58:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:43,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:58:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:43,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 23:58:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:43,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-06 23:58:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:43,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 23:58:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:43,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:58:43,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:58:43,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619175588] [2024-11-06 23:58:43,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619175588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:58:43,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:58:43,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 23:58:43,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995494575] [2024-11-06 23:58:43,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:58:43,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 23:58:43,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:58:43,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 23:58:43,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 23:58:43,574 INFO L87 Difference]: Start difference. First operand 364 states and 565 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:45,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:58:45,228 INFO L93 Difference]: Finished difference Result 843 states and 1329 transitions. [2024-11-06 23:58:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 23:58:45,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-06 23:58:45,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:58:45,233 INFO L225 Difference]: With dead ends: 843 [2024-11-06 23:58:45,233 INFO L226 Difference]: Without dead ends: 495 [2024-11-06 23:58:45,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:58:45,235 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 960 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 23:58:45,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 718 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 23:58:45,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-06 23:58:45,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 364. [2024-11-06 23:58:45,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 332 states have (on average 1.5481927710843373) internal successors, (514), 333 states have internal predecessors, (514), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-06 23:58:45,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 564 transitions. [2024-11-06 23:58:45,291 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 564 transitions. Word has length 166 [2024-11-06 23:58:45,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:58:45,293 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 564 transitions. [2024-11-06 23:58:45,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:45,293 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 564 transitions. [2024-11-06 23:58:45,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-06 23:58:45,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:58:45,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:58:45,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 23:58:45,300 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:58:45,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:58:45,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1353629269, now seen corresponding path program 1 times [2024-11-06 23:58:45,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:58:45,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548080030] [2024-11-06 23:58:45,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:58:45,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:58:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:45,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:58:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:45,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:58:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:45,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 23:58:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:45,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-06 23:58:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:45,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 23:58:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:45,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:58:45,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:58:45,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548080030] [2024-11-06 23:58:45,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548080030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:58:45,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:58:45,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:58:45,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110503497] [2024-11-06 23:58:45,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:58:45,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:58:45,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:58:45,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:58:45,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:58:45,734 INFO L87 Difference]: Start difference. First operand 364 states and 564 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:48,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:58:48,450 INFO L93 Difference]: Finished difference Result 1332 states and 2115 transitions. [2024-11-06 23:58:48,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-06 23:58:48,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-06 23:58:48,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:58:48,459 INFO L225 Difference]: With dead ends: 1332 [2024-11-06 23:58:48,459 INFO L226 Difference]: Without dead ends: 987 [2024-11-06 23:58:48,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-06 23:58:48,461 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 1457 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-06 23:58:48,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 1373 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-06 23:58:48,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2024-11-06 23:58:48,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 726. [2024-11-06 23:58:48,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 667 states have (on average 1.56071964017991) internal successors, (1041), 669 states have internal predecessors, (1041), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-11-06 23:58:48,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1134 transitions. [2024-11-06 23:58:48,515 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1134 transitions. Word has length 166 [2024-11-06 23:58:48,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:58:48,515 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 1134 transitions. [2024-11-06 23:58:48,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:48,516 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1134 transitions. [2024-11-06 23:58:48,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-06 23:58:48,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:58:48,518 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:58:48,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 23:58:48,518 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:58:48,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:58:48,519 INFO L85 PathProgramCache]: Analyzing trace with hash -354043089, now seen corresponding path program 1 times [2024-11-06 23:58:48,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:58:48,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774959428] [2024-11-06 23:58:48,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:58:48,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:58:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:48,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:58:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:48,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:58:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:48,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 23:58:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:48,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-06 23:58:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:48,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 23:58:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:58:48,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:58:48,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774959428] [2024-11-06 23:58:48,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774959428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:58:48,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:58:48,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:58:48,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338667902] [2024-11-06 23:58:48,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:58:48,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:58:48,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:58:48,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:58:48,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:58:48,832 INFO L87 Difference]: Start difference. First operand 726 states and 1134 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:52,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:58:52,167 INFO L93 Difference]: Finished difference Result 2204 states and 3504 transitions. [2024-11-06 23:58:52,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:58:52,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-06 23:58:52,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:58:52,177 INFO L225 Difference]: With dead ends: 2204 [2024-11-06 23:58:52,178 INFO L226 Difference]: Without dead ends: 1497 [2024-11-06 23:58:52,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:58:52,182 INFO L432 NwaCegarLoop]: 538 mSDtfsCounter, 1486 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 3326 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 3385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-06 23:58:52,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 2387 Invalid, 3385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3326 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-06 23:58:52,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2024-11-06 23:58:52,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1063. [2024-11-06 23:58:52,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 977 states have (on average 1.5537359263050154) internal successors, (1518), 980 states have internal predecessors, (1518), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-11-06 23:58:52,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1653 transitions. [2024-11-06 23:58:52,251 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1653 transitions. Word has length 166 [2024-11-06 23:58:52,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:58:52,251 INFO L471 AbstractCegarLoop]: Abstraction has 1063 states and 1653 transitions. [2024-11-06 23:58:52,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:52,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1653 transitions. [2024-11-06 23:58:52,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-06 23:58:52,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:58:52,254 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:58:52,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 23:58:52,254 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:58:52,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:58:52,254 INFO L85 PathProgramCache]: Analyzing trace with hash -15755539, now seen corresponding path program 1 times [2024-11-06 23:58:52,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:58:52,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586543578] [2024-11-06 23:58:52,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:58:52,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:58:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:52,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:58:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:52,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:58:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:52,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 23:58:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:52,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-06 23:58:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:52,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 23:58:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:52,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:58:52,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:58:52,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586543578] [2024-11-06 23:58:52,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586543578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:58:52,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:58:52,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:58:52,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650574377] [2024-11-06 23:58:52,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:58:52,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:58:52,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:58:52,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:58:52,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:58:52,536 INFO L87 Difference]: Start difference. First operand 1063 states and 1653 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:55,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:58:55,666 INFO L93 Difference]: Finished difference Result 3490 states and 5535 transitions. [2024-11-06 23:58:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:58:55,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-06 23:58:55,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:58:55,678 INFO L225 Difference]: With dead ends: 3490 [2024-11-06 23:58:55,678 INFO L226 Difference]: Without dead ends: 2446 [2024-11-06 23:58:55,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:58:55,682 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1484 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 3322 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 3383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-06 23:58:55,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 2385 Invalid, 3383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3322 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-06 23:58:55,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2024-11-06 23:58:55,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 1738. [2024-11-06 23:58:55,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1598 states have (on average 1.5475594493116396) internal successors, (2473), 1603 states have internal predecessors, (2473), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-11-06 23:58:55,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2696 transitions. [2024-11-06 23:58:55,806 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2696 transitions. Word has length 166 [2024-11-06 23:58:55,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:58:55,807 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 2696 transitions. [2024-11-06 23:58:55,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:55,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2696 transitions. [2024-11-06 23:58:55,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-06 23:58:55,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:58:55,809 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:58:55,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 23:58:55,810 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:58:55,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:58:55,810 INFO L85 PathProgramCache]: Analyzing trace with hash 410798959, now seen corresponding path program 1 times [2024-11-06 23:58:55,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:58:55,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463189200] [2024-11-06 23:58:55,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:58:55,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:58:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:55,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:58:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:55,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:58:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:56,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 23:58:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:56,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-06 23:58:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:56,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 23:58:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:56,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:58:56,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:58:56,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463189200] [2024-11-06 23:58:56,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463189200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:58:56,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:58:56,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:58:56,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437409002] [2024-11-06 23:58:56,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:58:56,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:58:56,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:58:56,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:58:56,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:58:56,083 INFO L87 Difference]: Start difference. First operand 1738 states and 2696 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:59,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:58:59,220 INFO L93 Difference]: Finished difference Result 5965 states and 9418 transitions. [2024-11-06 23:58:59,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:58:59,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-06 23:58:59,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:58:59,241 INFO L225 Difference]: With dead ends: 5965 [2024-11-06 23:58:59,241 INFO L226 Difference]: Without dead ends: 4246 [2024-11-06 23:58:59,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:58:59,247 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1480 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 3313 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-06 23:58:59,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 2385 Invalid, 3374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3313 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-06 23:58:59,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2024-11-06 23:58:59,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 3089. [2024-11-06 23:58:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 2841 states have (on average 1.542766631467793) internal successors, (4383), 2850 states have internal predecessors, (4383), 185 states have call successors, (185), 54 states have call predecessors, (185), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-11-06 23:58:59,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 4788 transitions. [2024-11-06 23:58:59,431 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 4788 transitions. Word has length 166 [2024-11-06 23:58:59,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:58:59,431 INFO L471 AbstractCegarLoop]: Abstraction has 3089 states and 4788 transitions. [2024-11-06 23:58:59,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:59,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 4788 transitions. [2024-11-06 23:58:59,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-06 23:58:59,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:58:59,435 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:58:59,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 23:58:59,436 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:58:59,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:58:59,436 INFO L85 PathProgramCache]: Analyzing trace with hash -129630547, now seen corresponding path program 1 times [2024-11-06 23:58:59,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:58:59,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051091425] [2024-11-06 23:58:59,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:58:59,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:58:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:59,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:58:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:59,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:58:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:59,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 23:58:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:59,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-06 23:58:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:59,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 23:58:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:59,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:58:59,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:58:59,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051091425] [2024-11-06 23:58:59,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051091425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:58:59,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:58:59,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:58:59,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516719205] [2024-11-06 23:58:59,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:58:59,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:58:59,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:58:59,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:58:59,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:58:59,705 INFO L87 Difference]: Start difference. First operand 3089 states and 4788 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:02,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:02,749 INFO L93 Difference]: Finished difference Result 10914 states and 17200 transitions. [2024-11-06 23:59:02,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:02,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-06 23:59:02,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:02,781 INFO L225 Difference]: With dead ends: 10914 [2024-11-06 23:59:02,781 INFO L226 Difference]: Without dead ends: 7844 [2024-11-06 23:59:02,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:59:02,790 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1476 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 3304 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 3365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:02,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 2385 Invalid, 3365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3304 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-06 23:59:02,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7844 states. [2024-11-06 23:59:03,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7844 to 5796. [2024-11-06 23:59:03,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5796 states, 5332 states have (on average 1.5395723930982745) internal successors, (8209), 5349 states have internal predecessors, (8209), 345 states have call successors, (345), 102 states have call predecessors, (345), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-06 23:59:03,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5796 states to 5796 states and 8996 transitions. [2024-11-06 23:59:03,108 INFO L78 Accepts]: Start accepts. Automaton has 5796 states and 8996 transitions. Word has length 166 [2024-11-06 23:59:03,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:03,108 INFO L471 AbstractCegarLoop]: Abstraction has 5796 states and 8996 transitions. [2024-11-06 23:59:03,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:03,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5796 states and 8996 transitions. [2024-11-06 23:59:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-06 23:59:03,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:03,114 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:03,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 23:59:03,115 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:03,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:03,115 INFO L85 PathProgramCache]: Analyzing trace with hash -285611089, now seen corresponding path program 1 times [2024-11-06 23:59:03,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:03,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599128853] [2024-11-06 23:59:03,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:03,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:03,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:03,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:59:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:03,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 23:59:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:03,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-06 23:59:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:03,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 23:59:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:03,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:59:03,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:03,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599128853] [2024-11-06 23:59:03,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599128853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:03,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:03,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:03,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984400326] [2024-11-06 23:59:03,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:03,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:03,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:03,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:03,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:03,394 INFO L87 Difference]: Start difference. First operand 5796 states and 8996 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:06,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:06,748 INFO L93 Difference]: Finished difference Result 20811 states and 32822 transitions. [2024-11-06 23:59:06,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:06,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-06 23:59:06,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:06,816 INFO L225 Difference]: With dead ends: 20811 [2024-11-06 23:59:06,816 INFO L226 Difference]: Without dead ends: 15034 [2024-11-06 23:59:06,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:59:06,833 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1478 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 3290 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 3351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:06,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 2385 Invalid, 3351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3290 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-06 23:59:06,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15034 states. [2024-11-06 23:59:07,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15034 to 11223. [2024-11-06 23:59:07,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11223 states, 10327 states have (on average 1.537619831509635) internal successors, (15879), 10360 states have internal predecessors, (15879), 665 states have call successors, (665), 198 states have call predecessors, (665), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-06 23:59:07,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11223 states to 11223 states and 17484 transitions. [2024-11-06 23:59:07,518 INFO L78 Accepts]: Start accepts. Automaton has 11223 states and 17484 transitions. Word has length 166 [2024-11-06 23:59:07,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:07,519 INFO L471 AbstractCegarLoop]: Abstraction has 11223 states and 17484 transitions. [2024-11-06 23:59:07,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:07,520 INFO L276 IsEmpty]: Start isEmpty. Operand 11223 states and 17484 transitions. [2024-11-06 23:59:07,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-06 23:59:07,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:07,529 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:07,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 23:59:07,530 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:07,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:07,530 INFO L85 PathProgramCache]: Analyzing trace with hash 124999277, now seen corresponding path program 1 times [2024-11-06 23:59:07,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:07,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82012977] [2024-11-06 23:59:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:07,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:07,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:07,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:59:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:07,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 23:59:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:07,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-06 23:59:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:07,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 23:59:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:59:07,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:07,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82012977] [2024-11-06 23:59:07,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82012977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:07,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:07,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:07,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456190719] [2024-11-06 23:59:07,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:07,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:07,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:07,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:07,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:07,831 INFO L87 Difference]: Start difference. First operand 11223 states and 17484 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:11,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:11,729 INFO L93 Difference]: Finished difference Result 40573 states and 64196 transitions. [2024-11-06 23:59:11,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:11,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-06 23:59:11,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:11,848 INFO L225 Difference]: With dead ends: 40573 [2024-11-06 23:59:11,849 INFO L226 Difference]: Without dead ends: 29369 [2024-11-06 23:59:11,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:59:11,894 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1474 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 3262 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 3323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:11,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 2385 Invalid, 3323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3262 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-06 23:59:11,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29369 states. [2024-11-06 23:59:13,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29369 to 22139. [2024-11-06 23:59:13,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22139 states, 20379 states have (on average 1.5372196869326267) internal successors, (31327), 20444 states have internal predecessors, (31327), 1305 states have call successors, (1305), 390 states have call predecessors, (1305), 454 states have return successors, (2098), 1368 states have call predecessors, (2098), 1305 states have call successors, (2098) [2024-11-06 23:59:13,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22139 states to 22139 states and 34730 transitions. [2024-11-06 23:59:13,406 INFO L78 Accepts]: Start accepts. Automaton has 22139 states and 34730 transitions. Word has length 166 [2024-11-06 23:59:13,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:13,406 INFO L471 AbstractCegarLoop]: Abstraction has 22139 states and 34730 transitions. [2024-11-06 23:59:13,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:13,407 INFO L276 IsEmpty]: Start isEmpty. Operand 22139 states and 34730 transitions. [2024-11-06 23:59:13,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-06 23:59:13,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:13,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:13,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 23:59:13,424 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:13,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:13,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2010883925, now seen corresponding path program 1 times [2024-11-06 23:59:13,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:13,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976589114] [2024-11-06 23:59:13,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:13,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:13,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:13,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:59:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:13,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 23:59:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:13,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-06 23:59:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:13,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 23:59:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:13,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:59:13,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:13,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976589114] [2024-11-06 23:59:13,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976589114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:13,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:13,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:13,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226604834] [2024-11-06 23:59:13,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:13,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:13,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:13,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:13,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:13,673 INFO L87 Difference]: Start difference. First operand 22139 states and 34730 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:18,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:18,547 INFO L93 Difference]: Finished difference Result 80163 states and 127672 transitions. [2024-11-06 23:59:18,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:18,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-06 23:59:18,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:18,779 INFO L225 Difference]: With dead ends: 80163 [2024-11-06 23:59:18,780 INFO L226 Difference]: Without dead ends: 58043 [2024-11-06 23:59:18,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:59:18,846 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1473 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 3249 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 3310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:18,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 2385 Invalid, 3310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3249 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-06 23:59:18,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58043 states. [2024-11-06 23:59:20,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58043 to 44032. [2024-11-06 23:59:20,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44032 states, 40544 states have (on average 1.5369228492501974) internal successors, (62313), 40673 states have internal predecessors, (62313), 2585 states have call successors, (2585), 774 states have call predecessors, (2585), 902 states have return successors, (4900), 2712 states have call predecessors, (4900), 2585 states have call successors, (4900) [2024-11-06 23:59:20,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44032 states to 44032 states and 69798 transitions. [2024-11-06 23:59:20,942 INFO L78 Accepts]: Start accepts. Automaton has 44032 states and 69798 transitions. Word has length 166 [2024-11-06 23:59:20,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:20,942 INFO L471 AbstractCegarLoop]: Abstraction has 44032 states and 69798 transitions. [2024-11-06 23:59:20,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:20,943 INFO L276 IsEmpty]: Start isEmpty. Operand 44032 states and 69798 transitions. [2024-11-06 23:59:20,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-06 23:59:20,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:20,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:20,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 23:59:20,969 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:20,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:20,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1941236051, now seen corresponding path program 1 times [2024-11-06 23:59:20,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:20,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931295942] [2024-11-06 23:59:20,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:20,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:21,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:21,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:59:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:21,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 23:59:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:21,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-06 23:59:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:21,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 23:59:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:21,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:59:21,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:21,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931295942] [2024-11-06 23:59:21,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931295942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:21,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:21,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:21,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502755741] [2024-11-06 23:59:21,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:21,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:21,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:21,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:21,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:21,212 INFO L87 Difference]: Start difference. First operand 44032 states and 69798 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:28,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:28,320 INFO L93 Difference]: Finished difference Result 159342 states and 256470 transitions. [2024-11-06 23:59:28,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:28,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-06 23:59:28,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:28,787 INFO L225 Difference]: With dead ends: 159342 [2024-11-06 23:59:28,788 INFO L226 Difference]: Without dead ends: 115329 [2024-11-06 23:59:28,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:59:28,958 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1472 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 3236 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 3297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:28,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 2385 Invalid, 3297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3236 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-06 23:59:29,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115329 states. [2024-11-06 23:59:33,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115329 to 87945. [2024-11-06 23:59:34,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87945 states, 81001 states have (on average 1.5367094233404526) internal successors, (124475), 81258 states have internal predecessors, (124475), 5145 states have call successors, (5145), 1542 states have call predecessors, (5145), 1798 states have return successors, (11962), 5400 states have call predecessors, (11962), 5145 states have call successors, (11962) [2024-11-06 23:59:34,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87945 states to 87945 states and 141582 transitions. [2024-11-06 23:59:34,365 INFO L78 Accepts]: Start accepts. Automaton has 87945 states and 141582 transitions. Word has length 166 [2024-11-06 23:59:34,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:34,365 INFO L471 AbstractCegarLoop]: Abstraction has 87945 states and 141582 transitions. [2024-11-06 23:59:34,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:34,366 INFO L276 IsEmpty]: Start isEmpty. Operand 87945 states and 141582 transitions. [2024-11-06 23:59:34,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-06 23:59:34,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:34,408 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:34,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 23:59:34,409 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:34,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:34,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1523347349, now seen corresponding path program 1 times [2024-11-06 23:59:34,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:34,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493642288] [2024-11-06 23:59:34,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:34,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:34,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:34,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:59:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:34,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 23:59:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:34,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-06 23:59:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:34,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 23:59:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:34,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:59:34,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:34,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493642288] [2024-11-06 23:59:34,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493642288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:34,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:34,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:34,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306831734] [2024-11-06 23:59:34,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:34,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:34,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:34,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:34,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:34,639 INFO L87 Difference]: Start difference. First operand 87945 states and 141582 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:45,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:45,912 INFO L93 Difference]: Finished difference Result 317701 states and 519708 transitions. [2024-11-06 23:59:45,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:45,912 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-06 23:59:45,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:46,929 INFO L225 Difference]: With dead ends: 317701 [2024-11-06 23:59:46,929 INFO L226 Difference]: Without dead ends: 229775 [2024-11-06 23:59:47,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:59:47,375 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1471 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 3223 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 3284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:47,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 2385 Invalid, 3284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3223 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-06 23:59:47,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229775 states.