./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/systemc/transmitter.04.cil.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '1de07d37d630bd073064bf436fb9512b72ab982b0eaf3fcb1582f689c57482fa'] 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/transmitter.04.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1de07d37d630bd073064bf436fb9512b72ab982b0eaf3fcb1582f689c57482fa --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 23:59:34,788 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 23:59:34,854 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 23:59:34,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 23:59:34,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 23:59:34,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 23:59:34,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 23:59:34,893 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 23:59:34,894 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 23:59:34,894 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 23:59:34,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 23:59:34,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 23:59:34,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 23:59:34,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 23:59:34,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 23:59:34,897 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 23:59:34,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 23:59:34,898 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 23:59:34,898 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 23:59:34,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 23:59:34,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 23:59:34,898 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 23:59:34,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 23:59:34,898 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 23:59:34,898 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 23:59:34,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 23:59:34,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 23:59:34,898 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 23:59:34,898 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 23:59:34,898 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 23:59:34,898 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 -> 1de07d37d630bd073064bf436fb9512b72ab982b0eaf3fcb1582f689c57482fa [2024-11-06 23:59:35,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 23:59:35,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 23:59:35,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 23:59:35,254 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 23:59:35,254 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 23:59:35,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.04.cil.c [2024-11-06 23:59:36,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 23:59:36,804 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 23:59:36,805 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.04.cil.c [2024-11-06 23:59:36,817 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2bbae63a9/993821ee60e34b53984117469a1d9541/FLAG5acbd70b5 [2024-11-06 23:59:36,831 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2bbae63a9/993821ee60e34b53984117469a1d9541 [2024-11-06 23:59:36,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 23:59:36,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 23:59:36,837 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 23:59:36,837 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 23:59:36,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 23:59:36,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:59:36" (1/1) ... [2024-11-06 23:59:36,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b13b48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:36, skipping insertion in model container [2024-11-06 23:59:36,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:59:36" (1/1) ... [2024-11-06 23:59:36,869 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 23:59:36,989 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/transmitter.04.cil.c[706,719] [2024-11-06 23:59:37,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 23:59:37,071 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 23:59:37,078 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/transmitter.04.cil.c[706,719] [2024-11-06 23:59:37,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 23:59:37,130 INFO L204 MainTranslator]: Completed translation [2024-11-06 23:59:37,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37 WrapperNode [2024-11-06 23:59:37,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 23:59:37,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 23:59:37,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 23:59:37,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 23:59:37,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (1/1) ... [2024-11-06 23:59:37,149 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (1/1) ... [2024-11-06 23:59:37,187 INFO L138 Inliner]: procedures = 36, calls = 42, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 387 [2024-11-06 23:59:37,188 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 23:59:37,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 23:59:37,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 23:59:37,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 23:59:37,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (1/1) ... [2024-11-06 23:59:37,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (1/1) ... [2024-11-06 23:59:37,207 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (1/1) ... [2024-11-06 23:59:37,234 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 23:59:37,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (1/1) ... [2024-11-06 23:59:37,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (1/1) ... [2024-11-06 23:59:37,245 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (1/1) ... [2024-11-06 23:59:37,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (1/1) ... [2024-11-06 23:59:37,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (1/1) ... [2024-11-06 23:59:37,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (1/1) ... [2024-11-06 23:59:37,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 23:59:37,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 23:59:37,274 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 23:59:37,274 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 23:59:37,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (1/1) ... [2024-11-06 23:59:37,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 23:59:37,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 23:59:37,311 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 23:59:37,315 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 23:59:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 23:59:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-06 23:59:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-06 23:59:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-06 23:59:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-06 23:59:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-06 23:59:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-06 23:59:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-06 23:59:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-06 23:59:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-06 23:59:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-06 23:59:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 23:59:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-06 23:59:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-06 23:59:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 23:59:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 23:59:37,434 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 23:59:37,436 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 23:59:37,986 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-06 23:59:37,986 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 23:59:38,020 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 23:59:38,021 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-06 23:59:38,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:59:38 BoogieIcfgContainer [2024-11-06 23:59:38,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 23:59:38,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 23:59:38,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 23:59:38,028 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 23:59:38,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:59:36" (1/3) ... [2024-11-06 23:59:38,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772abd24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:59:38, skipping insertion in model container [2024-11-06 23:59:38,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:37" (2/3) ... [2024-11-06 23:59:38,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772abd24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:59:38, skipping insertion in model container [2024-11-06 23:59:38,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:59:38" (3/3) ... [2024-11-06 23:59:38,032 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.04.cil.c [2024-11-06 23:59:38,047 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 23:59:38,047 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 23:59:38,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 23:59:38,128 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;@62a34dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 23:59:38,128 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 23:59:38,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 158 states have (on average 1.5886075949367089) internal successors, (251), 160 states have internal predecessors, (251), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-06 23:59:38,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-06 23:59:38,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:38,144 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] [2024-11-06 23:59:38,145 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:38,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:38,148 INFO L85 PathProgramCache]: Analyzing trace with hash -826588388, now seen corresponding path program 1 times [2024-11-06 23:59:38,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:38,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413282448] [2024-11-06 23:59:38,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:38,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:38,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:38,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 23:59:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:38,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-06 23:59:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:38,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-06 23:59:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:38,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-06 23:59:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:38,756 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 23:59:38,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:38,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413282448] [2024-11-06 23:59:38,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413282448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:38,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:38,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:59:38,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649986275] [2024-11-06 23:59:38,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:38,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:59:38,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:38,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:59:38,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:59:38,792 INFO L87 Difference]: Start difference. First operand has 183 states, 158 states have (on average 1.5886075949367089) internal successors, (251), 160 states have internal predecessors, (251), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:40,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:40,253 INFO L93 Difference]: Finished difference Result 628 states and 1001 transitions. [2024-11-06 23:59:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-06 23:59:40,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-06 23:59:40,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:40,274 INFO L225 Difference]: With dead ends: 628 [2024-11-06 23:59:40,274 INFO L226 Difference]: Without dead ends: 449 [2024-11-06 23:59:40,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-06 23:59:40,284 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 625 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:40,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 644 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 23:59:40,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-06 23:59:40,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 345. [2024-11-06 23:59:40,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 302 states have (on average 1.4933774834437086) internal successors, (451), 304 states have internal predecessors, (451), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-11-06 23:59:40,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 512 transitions. [2024-11-06 23:59:40,379 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 512 transitions. Word has length 91 [2024-11-06 23:59:40,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:40,379 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 512 transitions. [2024-11-06 23:59:40,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:40,380 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 512 transitions. [2024-11-06 23:59:40,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-06 23:59:40,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:40,386 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] [2024-11-06 23:59:40,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 23:59:40,386 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:40,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:40,387 INFO L85 PathProgramCache]: Analyzing trace with hash 180155515, now seen corresponding path program 1 times [2024-11-06 23:59:40,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:40,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756336931] [2024-11-06 23:59:40,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:40,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:40,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:40,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 23:59:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:40,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-06 23:59:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:40,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-06 23:59:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:40,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-06 23:59:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:40,649 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 23:59:40,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:40,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756336931] [2024-11-06 23:59:40,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756336931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:40,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:40,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:40,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481814816] [2024-11-06 23:59:40,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:40,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:40,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:40,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:40,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:40,652 INFO L87 Difference]: Start difference. First operand 345 states and 512 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:42,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:42,438 INFO L93 Difference]: Finished difference Result 1070 states and 1610 transitions. [2024-11-06 23:59:42,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-06 23:59:42,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-06 23:59:42,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:42,449 INFO L225 Difference]: With dead ends: 1070 [2024-11-06 23:59:42,449 INFO L226 Difference]: Without dead ends: 737 [2024-11-06 23:59:42,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-06 23:59:42,455 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 664 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:42,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 1158 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1766 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 23:59:42,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-11-06 23:59:42,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 502. [2024-11-06 23:59:42,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 440 states have (on average 1.4840909090909091) internal successors, (653), 443 states have internal predecessors, (653), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2024-11-06 23:59:42,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 740 transitions. [2024-11-06 23:59:42,517 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 740 transitions. Word has length 91 [2024-11-06 23:59:42,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:42,518 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 740 transitions. [2024-11-06 23:59:42,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:42,518 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 740 transitions. [2024-11-06 23:59:42,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-06 23:59:42,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:42,525 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:59:42,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 23:59:42,525 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:42,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:42,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1897181383, now seen corresponding path program 1 times [2024-11-06 23:59:42,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:42,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559891030] [2024-11-06 23:59:42,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:42,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:42,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:42,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 23:59:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:42,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-06 23:59:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:42,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-06 23:59:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:42,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-06 23:59:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:42,743 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 23:59:42,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:42,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559891030] [2024-11-06 23:59:42,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559891030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:42,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:42,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:42,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032475415] [2024-11-06 23:59:42,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:42,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:42,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:42,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:42,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:42,745 INFO L87 Difference]: Start difference. First operand 502 states and 740 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:44,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:44,312 INFO L93 Difference]: Finished difference Result 1643 states and 2462 transitions. [2024-11-06 23:59:44,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-06 23:59:44,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-06 23:59:44,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:44,320 INFO L225 Difference]: With dead ends: 1643 [2024-11-06 23:59:44,320 INFO L226 Difference]: Without dead ends: 1153 [2024-11-06 23:59:44,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-06 23:59:44,322 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 662 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:44,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 1156 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 23:59:44,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2024-11-06 23:59:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 817. [2024-11-06 23:59:44,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 717 states have (on average 1.4755927475592747) internal successors, (1058), 722 states have internal predecessors, (1058), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2024-11-06 23:59:44,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1201 transitions. [2024-11-06 23:59:44,428 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1201 transitions. Word has length 91 [2024-11-06 23:59:44,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:44,428 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1201 transitions. [2024-11-06 23:59:44,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:44,429 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1201 transitions. [2024-11-06 23:59:44,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-06 23:59:44,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:44,432 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] [2024-11-06 23:59:44,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 23:59:44,433 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:44,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:44,433 INFO L85 PathProgramCache]: Analyzing trace with hash -163076933, now seen corresponding path program 1 times [2024-11-06 23:59:44,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:44,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030739024] [2024-11-06 23:59:44,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:44,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:44,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:44,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 23:59:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:44,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-06 23:59:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:44,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-06 23:59:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:44,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-06 23:59:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:44,611 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 23:59:44,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:44,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030739024] [2024-11-06 23:59:44,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030739024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:44,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:44,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:44,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904673016] [2024-11-06 23:59:44,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:44,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:44,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:44,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:44,613 INFO L87 Difference]: Start difference. First operand 817 states and 1201 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:46,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:46,144 INFO L93 Difference]: Finished difference Result 2752 states and 4107 transitions. [2024-11-06 23:59:46,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-06 23:59:46,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-06 23:59:46,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:46,156 INFO L225 Difference]: With dead ends: 2752 [2024-11-06 23:59:46,156 INFO L226 Difference]: Without dead ends: 1947 [2024-11-06 23:59:46,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-06 23:59:46,159 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 709 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:46,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 769 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 23:59:46,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2024-11-06 23:59:46,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1448. [2024-11-06 23:59:46,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1272 states have (on average 1.4685534591194969) internal successors, (1868), 1281 states have internal predecessors, (1868), 113 states have call successors, (113), 54 states have call predecessors, (113), 62 states have return successors, (148), 120 states have call predecessors, (148), 113 states have call successors, (148) [2024-11-06 23:59:46,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2129 transitions. [2024-11-06 23:59:46,286 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2129 transitions. Word has length 91 [2024-11-06 23:59:46,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:46,286 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 2129 transitions. [2024-11-06 23:59:46,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:46,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2129 transitions. [2024-11-06 23:59:46,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-06 23:59:46,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:46,290 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] [2024-11-06 23:59:46,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 23:59:46,290 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:46,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:46,290 INFO L85 PathProgramCache]: Analyzing trace with hash 724145913, now seen corresponding path program 1 times [2024-11-06 23:59:46,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:46,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370047947] [2024-11-06 23:59:46,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:46,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:46,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:46,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 23:59:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:46,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-06 23:59:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:46,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-06 23:59:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:46,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-06 23:59:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:46,461 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 23:59:46,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:46,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370047947] [2024-11-06 23:59:46,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370047947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:46,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:46,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:46,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061328641] [2024-11-06 23:59:46,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:46,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:46,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:46,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:46,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:46,463 INFO L87 Difference]: Start difference. First operand 1448 states and 2129 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:48,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:48,154 INFO L93 Difference]: Finished difference Result 4969 states and 7413 transitions. [2024-11-06 23:59:48,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-06 23:59:48,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-06 23:59:48,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:48,173 INFO L225 Difference]: With dead ends: 4969 [2024-11-06 23:59:48,174 INFO L226 Difference]: Without dead ends: 3533 [2024-11-06 23:59:48,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-06 23:59:48,179 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 654 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:48,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1156 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 23:59:48,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2024-11-06 23:59:48,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 2715. [2024-11-06 23:59:48,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2715 states, 2387 states have (on average 1.4637620444072057) internal successors, (3494), 2404 states have internal predecessors, (3494), 209 states have call successors, (209), 102 states have call predecessors, (209), 118 states have return successors, (306), 224 states have call predecessors, (306), 209 states have call successors, (306) [2024-11-06 23:59:48,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 4009 transitions. [2024-11-06 23:59:48,385 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 4009 transitions. Word has length 91 [2024-11-06 23:59:48,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:48,385 INFO L471 AbstractCegarLoop]: Abstraction has 2715 states and 4009 transitions. [2024-11-06 23:59:48,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:48,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 4009 transitions. [2024-11-06 23:59:48,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-06 23:59:48,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:48,392 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] [2024-11-06 23:59:48,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 23:59:48,392 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:48,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:48,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1186896645, now seen corresponding path program 1 times [2024-11-06 23:59:48,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:48,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454319596] [2024-11-06 23:59:48,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:48,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:48,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:48,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 23:59:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:48,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-06 23:59:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:48,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-06 23:59:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:48,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-06 23:59:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:48,550 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 23:59:48,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:48,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454319596] [2024-11-06 23:59:48,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454319596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:48,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:48,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:48,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091594354] [2024-11-06 23:59:48,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:48,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:48,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:48,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:48,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:48,554 INFO L87 Difference]: Start difference. First operand 2715 states and 4009 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:50,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:50,245 INFO L93 Difference]: Finished difference Result 10266 states and 15333 transitions. [2024-11-06 23:59:50,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-06 23:59:50,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-06 23:59:50,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:50,287 INFO L225 Difference]: With dead ends: 10266 [2024-11-06 23:59:50,288 INFO L226 Difference]: Without dead ends: 7563 [2024-11-06 23:59:50,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-06 23:59:50,301 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 683 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:50,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 1138 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 23:59:50,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7563 states. [2024-11-06 23:59:50,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7563 to 5198. [2024-11-06 23:59:50,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 4582 states have (on average 1.4657354866870362) internal successors, (6716), 4615 states have internal predecessors, (6716), 385 states have call successors, (385), 198 states have call predecessors, (385), 230 states have return successors, (660), 416 states have call predecessors, (660), 385 states have call successors, (660) [2024-11-06 23:59:50,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 7761 transitions. [2024-11-06 23:59:50,615 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 7761 transitions. Word has length 91 [2024-11-06 23:59:50,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:50,616 INFO L471 AbstractCegarLoop]: Abstraction has 5198 states and 7761 transitions. [2024-11-06 23:59:50,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:50,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 7761 transitions. [2024-11-06 23:59:50,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-06 23:59:50,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:50,623 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] [2024-11-06 23:59:50,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 23:59:50,623 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:50,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:50,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1109995847, now seen corresponding path program 1 times [2024-11-06 23:59:50,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:50,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262214944] [2024-11-06 23:59:50,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:50,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:50,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:50,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 23:59:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:50,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-06 23:59:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:50,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-06 23:59:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:50,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-06 23:59:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:50,815 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 23:59:50,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:50,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262214944] [2024-11-06 23:59:50,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262214944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:50,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:50,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:50,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141289346] [2024-11-06 23:59:50,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:50,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:50,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:50,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:50,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:50,818 INFO L87 Difference]: Start difference. First operand 5198 states and 7761 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:52,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:52,706 INFO L93 Difference]: Finished difference Result 19355 states and 29167 transitions. [2024-11-06 23:59:52,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-06 23:59:52,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-06 23:59:52,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:52,775 INFO L225 Difference]: With dead ends: 19355 [2024-11-06 23:59:52,775 INFO L226 Difference]: Without dead ends: 14169 [2024-11-06 23:59:52,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-06 23:59:52,797 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 748 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:52,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1138 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1544 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 23:59:52,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14169 states. [2024-11-06 23:59:53,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14169 to 10161. [2024-11-06 23:59:53,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10161 states, 8985 states have (on average 1.467557039510295) internal successors, (13186), 9050 states have internal predecessors, (13186), 721 states have call successors, (721), 390 states have call predecessors, (721), 454 states have return successors, (1514), 784 states have call predecessors, (1514), 721 states have call successors, (1514) [2024-11-06 23:59:53,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10161 states to 10161 states and 15421 transitions. [2024-11-06 23:59:53,464 INFO L78 Accepts]: Start accepts. Automaton has 10161 states and 15421 transitions. Word has length 91 [2024-11-06 23:59:53,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:53,469 INFO L471 AbstractCegarLoop]: Abstraction has 10161 states and 15421 transitions. [2024-11-06 23:59:53,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:53,469 INFO L276 IsEmpty]: Start isEmpty. Operand 10161 states and 15421 transitions. [2024-11-06 23:59:53,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-06 23:59:53,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:53,487 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] [2024-11-06 23:59:53,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 23:59:53,487 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:53,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:53,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2077346501, now seen corresponding path program 1 times [2024-11-06 23:59:53,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:53,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040471129] [2024-11-06 23:59:53,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:53,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:53,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:53,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 23:59:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:53,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-06 23:59:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:53,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-06 23:59:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:53,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-06 23:59:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:53,620 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 23:59:53,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:53,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040471129] [2024-11-06 23:59:53,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040471129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:53,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:53,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:53,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621675737] [2024-11-06 23:59:53,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:53,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:53,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:53,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:53,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:53,623 INFO L87 Difference]: Start difference. First operand 10161 states and 15421 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:56,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:59:56,069 INFO L93 Difference]: Finished difference Result 36029 states and 55181 transitions. [2024-11-06 23:59:56,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-06 23:59:56,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-06 23:59:56,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:59:56,193 INFO L225 Difference]: With dead ends: 36029 [2024-11-06 23:59:56,193 INFO L226 Difference]: Without dead ends: 25880 [2024-11-06 23:59:56,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-06 23:59:56,228 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 648 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-06 23:59:56,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1138 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-06 23:59:56,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25880 states. [2024-11-06 23:59:57,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25880 to 20117. [2024-11-06 23:59:57,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20117 states, 17853 states have (on average 1.4721335349801155) internal successors, (26282), 17982 states have internal predecessors, (26282), 1361 states have call successors, (1361), 774 states have call predecessors, (1361), 902 states have return successors, (3676), 1488 states have call predecessors, (3676), 1361 states have call successors, (3676) [2024-11-06 23:59:57,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20117 states to 20117 states and 31319 transitions. [2024-11-06 23:59:57,612 INFO L78 Accepts]: Start accepts. Automaton has 20117 states and 31319 transitions. Word has length 91 [2024-11-06 23:59:57,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:59:57,613 INFO L471 AbstractCegarLoop]: Abstraction has 20117 states and 31319 transitions. [2024-11-06 23:59:57,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 23:59:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand 20117 states and 31319 transitions. [2024-11-06 23:59:57,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-06 23:59:57,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:59:57,644 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] [2024-11-06 23:59:57,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 23:59:57,645 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:59:57,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:59:57,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1724994621, now seen corresponding path program 1 times [2024-11-06 23:59:57,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:59:57,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242106947] [2024-11-06 23:59:57,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:59:57,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:59:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:57,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 23:59:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:57,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 23:59:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:57,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-06 23:59:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:57,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-06 23:59:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:57,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-06 23:59:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:59:57,846 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 23:59:57,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:59:57,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242106947] [2024-11-06 23:59:57,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242106947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:59:57,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:59:57,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 23:59:57,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529859330] [2024-11-06 23:59:57,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:59:57,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 23:59:57,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:59:57,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 23:59:57,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:59:57,852 INFO L87 Difference]: Start difference. First operand 20117 states and 31319 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:00:00,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:00:00,197 INFO L93 Difference]: Finished difference Result 43918 states and 68591 transitions. [2024-11-07 00:00:00,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:00:00,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-07 00:00:00,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:00:00,312 INFO L225 Difference]: With dead ends: 43918 [2024-11-07 00:00:00,312 INFO L226 Difference]: Without dead ends: 23814 [2024-11-07 00:00:00,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:00:00,380 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 214 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:00:00,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 780 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:00:00,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23814 states. [2024-11-07 00:00:01,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23814 to 20120. [2024-11-07 00:00:01,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20120 states, 17856 states have (on average 1.464885752688172) internal successors, (26157), 17985 states have internal predecessors, (26157), 1361 states have call successors, (1361), 774 states have call predecessors, (1361), 902 states have return successors, (3676), 1488 states have call predecessors, (3676), 1361 states have call successors, (3676) [2024-11-07 00:00:01,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20120 states to 20120 states and 31194 transitions. [2024-11-07 00:00:01,575 INFO L78 Accepts]: Start accepts. Automaton has 20120 states and 31194 transitions. Word has length 91 [2024-11-07 00:00:01,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:00:01,576 INFO L471 AbstractCegarLoop]: Abstraction has 20120 states and 31194 transitions. [2024-11-07 00:00:01,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:00:01,576 INFO L276 IsEmpty]: Start isEmpty. Operand 20120 states and 31194 transitions. [2024-11-07 00:00:01,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-07 00:00:01,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:00:01,606 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] [2024-11-07 00:00:01,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:00:01,606 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:00:01,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:00:01,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1926818555, now seen corresponding path program 1 times [2024-11-07 00:00:01,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:00:01,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126132216] [2024-11-07 00:00:01,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:00:01,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:00:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:01,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 00:00:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:01,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 00:00:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:01,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-07 00:00:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:01,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-07 00:00:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:01,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 00:00:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:01,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:00:01,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:00:01,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126132216] [2024-11-07 00:00:01,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126132216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:00:01,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:00:01,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:00:01,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821833792] [2024-11-07 00:00:01,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:00:01,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:00:01,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:00:01,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:00:01,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:00:01,745 INFO L87 Difference]: Start difference. First operand 20120 states and 31194 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:00:03,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:00:03,488 INFO L93 Difference]: Finished difference Result 44311 states and 68857 transitions. [2024-11-07 00:00:03,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 00:00:03,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-07 00:00:03,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:00:03,624 INFO L225 Difference]: With dead ends: 44311 [2024-11-07 00:00:03,624 INFO L226 Difference]: Without dead ends: 24204 [2024-11-07 00:00:03,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:00:03,696 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 227 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:00:03,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 780 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:00:03,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24204 states. [2024-11-07 00:00:04,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24204 to 20507. [2024-11-07 00:00:04,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20507 states, 18243 states have (on average 1.4550238447623747) internal successors, (26544), 18372 states have internal predecessors, (26544), 1361 states have call successors, (1361), 774 states have call predecessors, (1361), 902 states have return successors, (3676), 1488 states have call predecessors, (3676), 1361 states have call successors, (3676) [2024-11-07 00:00:05,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20507 states to 20507 states and 31581 transitions. [2024-11-07 00:00:05,070 INFO L78 Accepts]: Start accepts. Automaton has 20507 states and 31581 transitions. Word has length 91 [2024-11-07 00:00:05,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:00:05,070 INFO L471 AbstractCegarLoop]: Abstraction has 20507 states and 31581 transitions. [2024-11-07 00:00:05,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:00:05,070 INFO L276 IsEmpty]: Start isEmpty. Operand 20507 states and 31581 transitions. [2024-11-07 00:00:05,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-07 00:00:05,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:00:05,105 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] [2024-11-07 00:00:05,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:00:05,105 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:00:05,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:00:05,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1492129735, now seen corresponding path program 1 times [2024-11-07 00:00:05,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:00:05,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17040053] [2024-11-07 00:00:05,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:00:05,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:00:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:05,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 00:00:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:05,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 00:00:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:05,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-07 00:00:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:05,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-07 00:00:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:05,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 00:00:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:05,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:00:05,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:00:05,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17040053] [2024-11-07 00:00:05,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17040053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:00:05,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:00:05,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:00:05,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441379174] [2024-11-07 00:00:05,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:00:05,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:00:05,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:00:05,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:00:05,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:00:05,220 INFO L87 Difference]: Start difference. First operand 20507 states and 31581 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:00:08,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:00:08,626 INFO L93 Difference]: Finished difference Result 68034 states and 104416 transitions. [2024-11-07 00:00:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:00:08,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-07 00:00:08,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:00:08,912 INFO L225 Difference]: With dead ends: 68034 [2024-11-07 00:00:08,912 INFO L226 Difference]: Without dead ends: 47540 [2024-11-07 00:00:08,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:00:08,994 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 899 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 00:00:08,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 859 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 00:00:09,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47540 states. [2024-11-07 00:00:11,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47540 to 40046. [2024-11-07 00:00:11,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40046 states, 35684 states have (on average 1.4506501513283265) internal successors, (51765), 35941 states have internal predecessors, (51765), 2573 states have call successors, (2573), 1532 states have call predecessors, (2573), 1788 states have return successors, (7076), 2700 states have call predecessors, (7076), 2573 states have call successors, (7076) [2024-11-07 00:00:11,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40046 states to 40046 states and 61414 transitions. [2024-11-07 00:00:11,883 INFO L78 Accepts]: Start accepts. Automaton has 40046 states and 61414 transitions. Word has length 91 [2024-11-07 00:00:11,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:00:11,884 INFO L471 AbstractCegarLoop]: Abstraction has 40046 states and 61414 transitions. [2024-11-07 00:00:11,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:00:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 40046 states and 61414 transitions. [2024-11-07 00:00:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-07 00:00:11,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:00:11,920 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] [2024-11-07 00:00:11,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:00:11,920 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:00:11,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:00:11,920 INFO L85 PathProgramCache]: Analyzing trace with hash 2101269336, now seen corresponding path program 1 times [2024-11-07 00:00:11,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:00:11,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355461239] [2024-11-07 00:00:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:00:11,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:00:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:11,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 00:00:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:12,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 00:00:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:12,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-07 00:00:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:12,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-07 00:00:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:12,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 00:00:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:12,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:00:12,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:00:12,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355461239] [2024-11-07 00:00:12,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355461239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:00:12,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:00:12,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:00:12,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538303687] [2024-11-07 00:00:12,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:00:12,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:00:12,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:00:12,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:00:12,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:00:12,100 INFO L87 Difference]: Start difference. First operand 40046 states and 61414 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:00:15,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:00:15,071 INFO L93 Difference]: Finished difference Result 88086 states and 135088 transitions. [2024-11-07 00:00:15,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 00:00:15,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-07 00:00:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:00:15,372 INFO L225 Difference]: With dead ends: 88086 [2024-11-07 00:00:15,372 INFO L226 Difference]: Without dead ends: 48053 [2024-11-07 00:00:15,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:00:15,532 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 237 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:00:15,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 780 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:00:15,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48053 states. [2024-11-07 00:00:18,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48053 to 40433. [2024-11-07 00:00:18,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40433 states, 36071 states have (on average 1.4422389176901111) internal successors, (52023), 36328 states have internal predecessors, (52023), 2573 states have call successors, (2573), 1532 states have call predecessors, (2573), 1788 states have return successors, (7076), 2700 states have call predecessors, (7076), 2573 states have call successors, (7076) [2024-11-07 00:00:18,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40433 states to 40433 states and 61672 transitions. [2024-11-07 00:00:18,536 INFO L78 Accepts]: Start accepts. Automaton has 40433 states and 61672 transitions. Word has length 91 [2024-11-07 00:00:18,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:00:18,536 INFO L471 AbstractCegarLoop]: Abstraction has 40433 states and 61672 transitions. [2024-11-07 00:00:18,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:00:18,537 INFO L276 IsEmpty]: Start isEmpty. Operand 40433 states and 61672 transitions. [2024-11-07 00:00:18,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-07 00:00:18,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:00:18,565 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] [2024-11-07 00:00:18,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:00:18,565 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:00:18,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:00:18,566 INFO L85 PathProgramCache]: Analyzing trace with hash -254535914, now seen corresponding path program 1 times [2024-11-07 00:00:18,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:00:18,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066324248] [2024-11-07 00:00:18,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:00:18,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:00:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:18,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 00:00:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:18,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 00:00:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:18,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-07 00:00:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:18,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-07 00:00:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:18,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 00:00:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:00:18,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:00:18,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:00:18,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066324248] [2024-11-07 00:00:18,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066324248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:00:18,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:00:18,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:00:18,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527903003] [2024-11-07 00:00:18,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:00:18,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:00:18,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:00:18,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:00:18,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:00:18,698 INFO L87 Difference]: Start difference. First operand 40433 states and 61672 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:00:23,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:00:23,729 INFO L93 Difference]: Finished difference Result 135268 states and 204668 transitions. [2024-11-07 00:00:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:00:23,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-07 00:00:23,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:00:24,265 INFO L225 Difference]: With dead ends: 135268 [2024-11-07 00:00:24,266 INFO L226 Difference]: Without dead ends: 94848 [2024-11-07 00:00:24,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:00:24,450 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 945 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 00:00:24,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 859 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 00:00:24,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94848 states.