./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/systemc/token_ring.13.cil-1.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '1b2c6a3c4af8091017033117c21d8fbc40cee2009788b890a114045d77587077'] 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.13.cil-1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b2c6a3c4af8091017033117c21d8fbc40cee2009788b890a114045d77587077 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 23:58:47,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 23:58:47,926 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 23:58:47,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 23:58:47,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 23:58:47,952 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 23:58:47,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 23:58:47,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 23:58:47,955 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 23:58:47,955 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 23:58:47,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 23:58:47,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 23:58:47,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 23:58:47,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 23:58:47,957 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 23:58:47,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 23:58:47,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 23:58:47,957 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 23:58:47,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 23:58:47,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 23:58:47,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 23:58:47,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 23:58:47,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 23:58:47,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 23:58:47,958 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 23:58:47,958 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 23:58:47,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 23:58:47,958 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 23:58:47,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 23:58:47,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 23:58:47,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 23:58:47,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 23:58:47,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 23:58:47,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 23:58:47,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 23:58:47,959 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 23:58:47,959 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 23:58:47,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 23:58:47,960 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 23:58:47,960 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 23:58:47,960 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 23:58:47,960 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 23:58:47,960 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 -> 1b2c6a3c4af8091017033117c21d8fbc40cee2009788b890a114045d77587077 [2024-11-06 23:58:48,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 23:58:48,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 23:58:48,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 23:58:48,203 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 23:58:48,203 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 23:58:48,205 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.13.cil-1.c [2024-11-06 23:58:49,380 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 23:58:49,609 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 23:58:49,610 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.13.cil-1.c [2024-11-06 23:58:49,626 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c669b2ec4/9c6627eaae37489183743e3f24319561/FLAG1a8ec7672 [2024-11-06 23:58:49,947 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c669b2ec4/9c6627eaae37489183743e3f24319561 [2024-11-06 23:58:49,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 23:58:49,951 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 23:58:49,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 23:58:49,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 23:58:49,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 23:58:49,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:58:49" (1/1) ... [2024-11-06 23:58:49,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74af7c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:49, skipping insertion in model container [2024-11-06 23:58:49,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:58:49" (1/1) ... [2024-11-06 23:58:49,994 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 23:58:50,094 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.13.cil-1.c[671,684] [2024-11-06 23:58:50,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 23:58:50,190 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 23:58:50,197 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.13.cil-1.c[671,684] [2024-11-06 23:58:50,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 23:58:50,260 INFO L204 MainTranslator]: Completed translation [2024-11-06 23:58:50,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50 WrapperNode [2024-11-06 23:58:50,261 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 23:58:50,262 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 23:58:50,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 23:58:50,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 23:58:50,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (1/1) ... [2024-11-06 23:58:50,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (1/1) ... [2024-11-06 23:58:50,308 INFO L138 Inliner]: procedures = 54, calls = 71, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 945 [2024-11-06 23:58:50,308 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 23:58:50,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 23:58:50,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 23:58:50,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 23:58:50,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (1/1) ... [2024-11-06 23:58:50,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (1/1) ... [2024-11-06 23:58:50,318 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (1/1) ... [2024-11-06 23:58:50,332 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 23:58:50,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (1/1) ... [2024-11-06 23:58:50,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (1/1) ... [2024-11-06 23:58:50,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (1/1) ... [2024-11-06 23:58:50,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (1/1) ... [2024-11-06 23:58:50,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (1/1) ... [2024-11-06 23:58:50,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (1/1) ... [2024-11-06 23:58:50,372 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 23:58:50,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 23:58:50,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 23:58:50,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 23:58:50,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (1/1) ... [2024-11-06 23:58:50,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 23:58:50,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 23:58:50,395 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 23:58:50,397 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 23:58:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 23:58:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-06 23:58:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-06 23:58:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-06 23:58:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-06 23:58:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-06 23:58:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-06 23:58:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-06 23:58:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-06 23:58:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-06 23:58:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-06 23:58:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-06 23:58:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-06 23:58:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-06 23:58:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-06 23:58:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 23:58:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 23:58:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 23:58:50,534 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 23:58:50,535 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 23:58:51,196 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-06 23:58:51,197 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 23:58:51,208 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 23:58:51,208 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-06 23:58:51,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:58:51 BoogieIcfgContainer [2024-11-06 23:58:51,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 23:58:51,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 23:58:51,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 23:58:51,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 23:58:51,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:58:49" (1/3) ... [2024-11-06 23:58:51,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5715f8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:58:51, skipping insertion in model container [2024-11-06 23:58:51,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:58:50" (2/3) ... [2024-11-06 23:58:51,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5715f8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:58:51, skipping insertion in model container [2024-11-06 23:58:51,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:58:51" (3/3) ... [2024-11-06 23:58:51,216 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.13.cil-1.c [2024-11-06 23:58:51,225 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 23:58:51,226 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 23:58:51,266 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 23:58:51,274 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;@27157830, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 23:58:51,274 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 23:58:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 429 states, 391 states have (on average 1.6470588235294117) internal successors, (644), 395 states have internal predecessors, (644), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-06 23:58:51,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 23:58:51,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:58:51,291 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:58:51,291 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:58:51,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:58:51,295 INFO L85 PathProgramCache]: Analyzing trace with hash -363177738, now seen corresponding path program 1 times [2024-11-06 23:58:51,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:58:51,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539468873] [2024-11-06 23:58:51,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:58:51,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:58:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:51,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:58:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:51,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:58:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:51,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:58:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:51,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-06 23:58:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:51,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-06 23:58:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:51,810 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 23:58:51,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:58:51,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539468873] [2024-11-06 23:58:51,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539468873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:58:51,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:58:51,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 23:58:51,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154641917] [2024-11-06 23:58:51,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:58:51,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 23:58:51,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:58:51,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 23:58:51,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 23:58:51,841 INFO L87 Difference]: Start difference. First operand has 429 states, 391 states have (on average 1.6470588235294117) internal successors, (644), 395 states have internal predecessors, (644), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:53,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:58:53,618 INFO L93 Difference]: Finished difference Result 997 states and 1647 transitions. [2024-11-06 23:58:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 23:58:53,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-06 23:58:53,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:58:53,632 INFO L225 Difference]: With dead ends: 997 [2024-11-06 23:58:53,632 INFO L226 Difference]: Without dead ends: 576 [2024-11-06 23:58:53,635 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 23:58:53,637 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 1135 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 23:58:53,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 863 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 23:58:53,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-06 23:58:53,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 423. [2024-11-06 23:58:53,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 387 states have (on average 1.5633074935400517) internal successors, (605), 389 states have internal predecessors, (605), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-06 23:58:53,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 661 transitions. [2024-11-06 23:58:53,695 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 661 transitions. Word has length 189 [2024-11-06 23:58:53,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:58:53,696 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 661 transitions. [2024-11-06 23:58:53,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:53,696 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 661 transitions. [2024-11-06 23:58:53,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 23:58:53,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:58:53,700 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:58:53,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 23:58:53,701 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:58:53,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:58:53,702 INFO L85 PathProgramCache]: Analyzing trace with hash -968952520, now seen corresponding path program 1 times [2024-11-06 23:58:53,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:58:53,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198126213] [2024-11-06 23:58:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:58:53,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:58:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:53,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:58:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:54,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:58:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:54,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:58:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:54,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-06 23:58:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:54,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-06 23:58:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:54,114 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 23:58:54,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:58:54,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198126213] [2024-11-06 23:58:54,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198126213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:58:54,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:58:54,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:58:54,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463560340] [2024-11-06 23:58:54,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:58:54,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:58:54,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:58:54,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:58:54,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:58:54,119 INFO L87 Difference]: Start difference. First operand 423 states and 661 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:56,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:58:56,804 INFO L93 Difference]: Finished difference Result 1553 states and 2480 transitions. [2024-11-06 23:58:56,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-06 23:58:56,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-06 23:58:56,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:58:56,810 INFO L225 Difference]: With dead ends: 1553 [2024-11-06 23:58:56,810 INFO L226 Difference]: Without dead ends: 1151 [2024-11-06 23:58:56,811 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 23:58:56,812 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 1706 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 2438 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-06 23:58:56,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 1459 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 2438 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-06 23:58:56,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2024-11-06 23:58:56,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 844. [2024-11-06 23:58:56,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 779 states have (on average 1.5738125802310654) internal successors, (1226), 782 states have internal predecessors, (1226), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2024-11-06 23:58:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1329 transitions. [2024-11-06 23:58:56,877 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1329 transitions. Word has length 189 [2024-11-06 23:58:56,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:58:56,878 INFO L471 AbstractCegarLoop]: Abstraction has 844 states and 1329 transitions. [2024-11-06 23:58:56,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:58:56,878 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1329 transitions. [2024-11-06 23:58:56,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 23:58:56,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:58:56,880 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:58:56,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 23:58:56,884 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:58:56,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:58:56,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1478988340, now seen corresponding path program 1 times [2024-11-06 23:58:56,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:58:56,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434458941] [2024-11-06 23:58:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:58:56,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:58:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:57,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:58:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:57,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:58:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:57,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:58:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:57,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-06 23:58:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:57,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-06 23:58:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:58:57,237 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 23:58:57,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:58:57,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434458941] [2024-11-06 23:58:57,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434458941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:58:57,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:58:57,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:58:57,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977491255] [2024-11-06 23:58:57,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:58:57,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:58:57,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:58:57,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:58:57,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:58:57,241 INFO L87 Difference]: Start difference. First operand 844 states and 1329 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:00,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:00,762 INFO L93 Difference]: Finished difference Result 2569 states and 4111 transitions. [2024-11-06 23:59:00,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:00,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-06 23:59:00,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:00,769 INFO L225 Difference]: With dead ends: 2569 [2024-11-06 23:59:00,769 INFO L226 Difference]: Without dead ends: 1746 [2024-11-06 23:59:00,770 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 23:59:00,771 INFO L432 NwaCegarLoop]: 637 mSDtfsCounter, 1751 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3861 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1771 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:00,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1771 Valid, 2846 Invalid, 3928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3861 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-06 23:59:00,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2024-11-06 23:59:00,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1236. [2024-11-06 23:59:00,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 1142 states have (on average 1.5665499124343258) internal successors, (1789), 1146 states have internal predecessors, (1789), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-11-06 23:59:00,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1938 transitions. [2024-11-06 23:59:00,853 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1938 transitions. Word has length 189 [2024-11-06 23:59:00,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:00,853 INFO L471 AbstractCegarLoop]: Abstraction has 1236 states and 1938 transitions. [2024-11-06 23:59:00,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:00,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1938 transitions. [2024-11-06 23:59:00,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 23:59:00,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:00,858 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:00,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 23:59:00,858 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:00,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:00,859 INFO L85 PathProgramCache]: Analyzing trace with hash -444262090, now seen corresponding path program 1 times [2024-11-06 23:59:00,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:00,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623357092] [2024-11-06 23:59:00,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:00,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:00,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:01,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:59:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:01,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:59:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:01,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-06 23:59:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:01,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-06 23:59:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:01,126 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 23:59:01,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:01,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623357092] [2024-11-06 23:59:01,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623357092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:01,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:01,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:01,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122865093] [2024-11-06 23:59:01,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:01,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:01,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:01,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:01,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:01,128 INFO L87 Difference]: Start difference. First operand 1236 states and 1938 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:04,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:04,634 INFO L93 Difference]: Finished difference Result 4067 states and 6496 transitions. [2024-11-06 23:59:04,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:04,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-06 23:59:04,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:04,644 INFO L225 Difference]: With dead ends: 4067 [2024-11-06 23:59:04,647 INFO L226 Difference]: Without dead ends: 2852 [2024-11-06 23:59:04,649 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 23:59:04,653 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 1745 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3840 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:04,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1765 Valid, 2844 Invalid, 3909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3840 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-06 23:59:04,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2024-11-06 23:59:04,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2024. [2024-11-06 23:59:04,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2024 states, 1872 states have (on average 1.560897435897436) internal successors, (2922), 1878 states have internal predecessors, (2922), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-11-06 23:59:04,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 3167 transitions. [2024-11-06 23:59:04,768 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 3167 transitions. Word has length 189 [2024-11-06 23:59:04,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:04,768 INFO L471 AbstractCegarLoop]: Abstraction has 2024 states and 3167 transitions. [2024-11-06 23:59:04,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:04,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 3167 transitions. [2024-11-06 23:59:04,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 23:59:04,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:04,770 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:04,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 23:59:04,771 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:04,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:04,771 INFO L85 PathProgramCache]: Analyzing trace with hash 54294712, now seen corresponding path program 1 times [2024-11-06 23:59:04,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:04,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100706881] [2024-11-06 23:59:04,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:04,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:04,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:04,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:59:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:04,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:59:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:04,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-06 23:59:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:04,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-06 23:59:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:04,998 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 23:59:04,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:04,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100706881] [2024-11-06 23:59:04,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100706881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:04,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:04,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:04,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669532858] [2024-11-06 23:59:04,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:05,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:05,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:05,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:05,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:05,002 INFO L87 Difference]: Start difference. First operand 2024 states and 3167 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:08,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:08,403 INFO L93 Difference]: Finished difference Result 6957 states and 11065 transitions. [2024-11-06 23:59:08,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:08,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-06 23:59:08,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:08,418 INFO L225 Difference]: With dead ends: 6957 [2024-11-06 23:59:08,418 INFO L226 Difference]: Without dead ends: 4954 [2024-11-06 23:59:08,421 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 23:59:08,422 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 1744 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3827 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:08,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 2844 Invalid, 3896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3827 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-06 23:59:08,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2024-11-06 23:59:08,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 3601. [2024-11-06 23:59:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 3333 states have (on average 1.5565556555655566) internal successors, (5188), 3343 states have internal predecessors, (5188), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2024-11-06 23:59:08,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5631 transitions. [2024-11-06 23:59:08,626 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5631 transitions. Word has length 189 [2024-11-06 23:59:08,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:08,626 INFO L471 AbstractCegarLoop]: Abstraction has 3601 states and 5631 transitions. [2024-11-06 23:59:08,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:08,627 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5631 transitions. [2024-11-06 23:59:08,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 23:59:08,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:08,629 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:08,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 23:59:08,630 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:08,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:08,630 INFO L85 PathProgramCache]: Analyzing trace with hash 624566518, now seen corresponding path program 1 times [2024-11-06 23:59:08,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:08,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492728199] [2024-11-06 23:59:08,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:08,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:08,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:08,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:59:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:08,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:59:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:08,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-06 23:59:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:08,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-06 23:59:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:08,873 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 23:59:08,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:08,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492728199] [2024-11-06 23:59:08,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492728199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:08,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:08,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:08,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752860954] [2024-11-06 23:59:08,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:08,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:08,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:08,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:08,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:08,875 INFO L87 Difference]: Start difference. First operand 3601 states and 5631 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:12,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:12,320 INFO L93 Difference]: Finished difference Result 12736 states and 20219 transitions. [2024-11-06 23:59:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:12,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-06 23:59:12,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:12,342 INFO L225 Difference]: With dead ends: 12736 [2024-11-06 23:59:12,342 INFO L226 Difference]: Without dead ends: 9156 [2024-11-06 23:59:12,348 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 23:59:12,349 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 1743 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3814 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:12,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 2844 Invalid, 3883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3814 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-06 23:59:12,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9156 states. [2024-11-06 23:59:12,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9156 to 6762. [2024-11-06 23:59:12,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6762 states, 6262 states have (on average 1.5538166719897797) internal successors, (9730), 6280 states have internal predecessors, (9730), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-11-06 23:59:12,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6762 states to 6762 states and 10587 transitions. [2024-11-06 23:59:12,624 INFO L78 Accepts]: Start accepts. Automaton has 6762 states and 10587 transitions. Word has length 189 [2024-11-06 23:59:12,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:12,625 INFO L471 AbstractCegarLoop]: Abstraction has 6762 states and 10587 transitions. [2024-11-06 23:59:12,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:12,625 INFO L276 IsEmpty]: Start isEmpty. Operand 6762 states and 10587 transitions. [2024-11-06 23:59:12,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 23:59:12,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:12,629 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:12,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 23:59:12,629 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:12,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:12,630 INFO L85 PathProgramCache]: Analyzing trace with hash 2028435704, now seen corresponding path program 1 times [2024-11-06 23:59:12,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:12,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209359399] [2024-11-06 23:59:12,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:12,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:12,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:12,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:59:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:12,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:59:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:12,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-06 23:59:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:12,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-06 23:59:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:12,857 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 23:59:12,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:12,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209359399] [2024-11-06 23:59:12,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209359399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:12,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:12,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:12,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724754408] [2024-11-06 23:59:12,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:12,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:12,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:12,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:12,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:12,859 INFO L87 Difference]: Start difference. First operand 6762 states and 10587 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:16,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:16,188 INFO L93 Difference]: Finished difference Result 24295 states and 38589 transitions. [2024-11-06 23:59:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:16,189 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-06 23:59:16,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:16,246 INFO L225 Difference]: With dead ends: 24295 [2024-11-06 23:59:16,246 INFO L226 Difference]: Without dead ends: 17554 [2024-11-06 23:59:16,258 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 23:59:16,259 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 1856 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 3249 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 3360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:16,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1876 Valid, 1801 Invalid, 3360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 3249 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-06 23:59:16,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17554 states. [2024-11-06 23:59:16,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17554 to 13099. [2024-11-06 23:59:16,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13099 states, 12135 states have (on average 1.5522043675319324) internal successors, (18836), 12169 states have internal predecessors, (18836), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-11-06 23:59:16,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13099 states to 13099 states and 20575 transitions. [2024-11-06 23:59:16,896 INFO L78 Accepts]: Start accepts. Automaton has 13099 states and 20575 transitions. Word has length 189 [2024-11-06 23:59:16,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:16,897 INFO L471 AbstractCegarLoop]: Abstraction has 13099 states and 20575 transitions. [2024-11-06 23:59:16,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:16,897 INFO L276 IsEmpty]: Start isEmpty. Operand 13099 states and 20575 transitions. [2024-11-06 23:59:16,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 23:59:16,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:16,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:16,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 23:59:16,905 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:16,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:16,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1242437814, now seen corresponding path program 1 times [2024-11-06 23:59:16,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:16,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752179139] [2024-11-06 23:59:16,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:16,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:16,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:17,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:59:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:17,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:59:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:17,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-06 23:59:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:17,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-06 23:59:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:17,179 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 23:59:17,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:17,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752179139] [2024-11-06 23:59:17,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752179139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:17,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:17,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:17,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784199450] [2024-11-06 23:59:17,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:17,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:17,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:17,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:17,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:17,181 INFO L87 Difference]: Start difference. First operand 13099 states and 20575 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:21,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:21,526 INFO L93 Difference]: Finished difference Result 47414 states and 75523 transitions. [2024-11-06 23:59:21,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:21,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-06 23:59:21,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:21,688 INFO L225 Difference]: With dead ends: 47414 [2024-11-06 23:59:21,689 INFO L226 Difference]: Without dead ends: 34336 [2024-11-06 23:59:21,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:59:21,720 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 1741 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3788 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:21,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 2844 Invalid, 3857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3788 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-06 23:59:21,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34336 states. [2024-11-06 23:59:22,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34336 to 25804. [2024-11-06 23:59:22,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25804 states, 23912 states have (on average 1.5512713282034125) internal successors, (37094), 23978 states have internal predecessors, (37094), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2024-11-06 23:59:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25804 states to 25804 states and 40759 transitions. [2024-11-06 23:59:22,768 INFO L78 Accepts]: Start accepts. Automaton has 25804 states and 40759 transitions. Word has length 189 [2024-11-06 23:59:22,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:22,768 INFO L471 AbstractCegarLoop]: Abstraction has 25804 states and 40759 transitions. [2024-11-06 23:59:22,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:22,768 INFO L276 IsEmpty]: Start isEmpty. Operand 25804 states and 40759 transitions. [2024-11-06 23:59:22,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 23:59:22,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:22,781 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:22,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 23:59:22,781 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:22,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:22,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1909819704, now seen corresponding path program 1 times [2024-11-06 23:59:22,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:22,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652240406] [2024-11-06 23:59:22,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:22,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:22,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:22,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:59:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:22,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:59:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:22,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-06 23:59:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:22,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-06 23:59:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:22,985 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 23:59:22,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:22,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652240406] [2024-11-06 23:59:22,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652240406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:22,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:22,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:22,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876307402] [2024-11-06 23:59:22,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:22,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:22,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:22,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:22,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:22,987 INFO L87 Difference]: Start difference. First operand 25804 states and 40759 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:28,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:28,765 INFO L93 Difference]: Finished difference Result 93653 states and 149993 transitions. [2024-11-06 23:59:28,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:28,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-06 23:59:28,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:28,963 INFO L225 Difference]: With dead ends: 93653 [2024-11-06 23:59:28,964 INFO L226 Difference]: Without dead ends: 67870 [2024-11-06 23:59:29,029 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 23:59:29,029 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 1740 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3775 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:29,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1760 Valid, 2844 Invalid, 3844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3775 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-06 23:59:29,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67870 states. [2024-11-06 23:59:30,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67870 to 51277. [2024-11-06 23:59:30,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51277 states, 47529 states have (on average 1.550716404721328) internal successors, (73704), 47659 states have internal predecessors, (73704), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2024-11-06 23:59:31,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51277 states to 51277 states and 81707 transitions. [2024-11-06 23:59:31,018 INFO L78 Accepts]: Start accepts. Automaton has 51277 states and 81707 transitions. Word has length 189 [2024-11-06 23:59:31,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:31,018 INFO L471 AbstractCegarLoop]: Abstraction has 51277 states and 81707 transitions. [2024-11-06 23:59:31,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:31,018 INFO L276 IsEmpty]: Start isEmpty. Operand 51277 states and 81707 transitions. [2024-11-06 23:59:31,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 23:59:31,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:31,039 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:31,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 23:59:31,040 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:31,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:31,040 INFO L85 PathProgramCache]: Analyzing trace with hash -285409162, now seen corresponding path program 1 times [2024-11-06 23:59:31,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:31,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31961182] [2024-11-06 23:59:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:31,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:31,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:31,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:59:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:31,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:59:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:31,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-06 23:59:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:31,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-06 23:59:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:31,283 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 23:59:31,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:31,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31961182] [2024-11-06 23:59:31,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31961182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:31,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:31,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:31,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757332112] [2024-11-06 23:59:31,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:31,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:31,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:31,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:31,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:31,285 INFO L87 Difference]: Start difference. First operand 51277 states and 81707 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:35,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:35,973 INFO L93 Difference]: Finished difference Result 120287 states and 195268 transitions. [2024-11-06 23:59:35,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 23:59:35,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-06 23:59:35,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:36,310 INFO L225 Difference]: With dead ends: 120287 [2024-11-06 23:59:36,314 INFO L226 Difference]: Without dead ends: 69031 [2024-11-06 23:59:36,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-06 23:59:36,485 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 1259 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 1998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:36,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 1430 Invalid, 1998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 23:59:36,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69031 states. [2024-11-06 23:59:38,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69031 to 51277. [2024-11-06 23:59:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51277 states, 47529 states have (on average 1.5480022722969136) internal successors, (73575), 47659 states have internal predecessors, (73575), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2024-11-06 23:59:38,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51277 states to 51277 states and 81578 transitions. [2024-11-06 23:59:38,581 INFO L78 Accepts]: Start accepts. Automaton has 51277 states and 81578 transitions. Word has length 189 [2024-11-06 23:59:38,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:38,581 INFO L471 AbstractCegarLoop]: Abstraction has 51277 states and 81578 transitions. [2024-11-06 23:59:38,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:38,582 INFO L276 IsEmpty]: Start isEmpty. Operand 51277 states and 81578 transitions. [2024-11-06 23:59:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 23:59:38,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:38,604 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:38,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 23:59:38,605 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:38,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:38,605 INFO L85 PathProgramCache]: Analyzing trace with hash 59419000, now seen corresponding path program 1 times [2024-11-06 23:59:38,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:38,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616382522] [2024-11-06 23:59:38,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:38,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:38,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:38,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:59:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:38,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:59:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:38,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-06 23:59:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:38,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-06 23:59:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:38,808 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 23:59:38,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:38,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616382522] [2024-11-06 23:59:38,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616382522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:38,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:38,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:38,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217264665] [2024-11-06 23:59:38,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:38,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:38,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:38,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:38,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:38,810 INFO L87 Difference]: Start difference. First operand 51277 states and 81578 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:46,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:46,453 INFO L93 Difference]: Finished difference Result 185872 states and 299619 transitions. [2024-11-06 23:59:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:59:46,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-06 23:59:46,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:46,951 INFO L225 Difference]: With dead ends: 185872 [2024-11-06 23:59:46,951 INFO L226 Difference]: Without dead ends: 134616 [2024-11-06 23:59:47,281 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 23:59:47,282 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 1734 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3718 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:47,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 2844 Invalid, 3787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3718 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-06 23:59:47,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134616 states. [2024-11-06 23:59:50,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134616 to 102608. [2024-11-06 23:59:50,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102608 states, 95148 states have (on average 1.5475364695001472) internal successors, (147245), 95406 states have internal predecessors, (147245), 5661 states have call successors, (5661), 1543 states have call predecessors, (5661), 1798 states have return successors, (12476), 5914 states have call predecessors, (12476), 5659 states have call successors, (12476) [2024-11-06 23:59:51,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102608 states to 102608 states and 165382 transitions. [2024-11-06 23:59:51,072 INFO L78 Accepts]: Start accepts. Automaton has 102608 states and 165382 transitions. Word has length 189 [2024-11-06 23:59:51,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:51,072 INFO L471 AbstractCegarLoop]: Abstraction has 102608 states and 165382 transitions. [2024-11-06 23:59:51,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:51,073 INFO L276 IsEmpty]: Start isEmpty. Operand 102608 states and 165382 transitions. [2024-11-06 23:59:51,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 23:59:51,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:51,111 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:51,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 23:59:51,111 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:51,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:51,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1710052614, now seen corresponding path program 1 times [2024-11-06 23:59:51,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:51,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970383842] [2024-11-06 23:59:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:51,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:51,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:51,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:59:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:51,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:59:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:51,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-06 23:59:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:51,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-06 23:59:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:51,320 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 23:59:51,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:51,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970383842] [2024-11-06 23:59:51,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970383842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:51,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:51,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:51,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497200278] [2024-11-06 23:59:51,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:51,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:51,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:51,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:51,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:51,322 INFO L87 Difference]: Start difference. First operand 102608 states and 165382 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)