./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.02.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.02.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 4ebb73aa3b2fe06c298821e537034d0c16e316e18b31a7db411eb85fc916df11 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:57:35,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:57:35,105 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:57:35,109 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:57:35,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:57:35,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:57:35,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:57:35,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:57:35,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:57:35,130 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:57:35,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:57:35,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:57:35,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:57:35,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:57:35,132 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:57:35,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:57:35,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:57:35,133 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:57:35,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:57:35,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:57:35,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:57:35,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:57:35,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:57:35,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:57:35,139 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:57:35,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:57:35,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:57:35,140 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:57:35,140 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:57:35,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:57:35,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:57:35,141 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:57:35,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:57:35,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:57:35,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:57:35,142 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:57:35,142 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:57:35,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:57:35,143 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:57:35,143 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:57:35,143 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:57:35,145 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:57:35,145 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ebb73aa3b2fe06c298821e537034d0c16e316e18b31a7db411eb85fc916df11 [2024-11-16 09:57:35,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:57:35,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:57:35,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:57:35,415 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:57:35,415 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:57:35,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.02.cil-1.c [2024-11-16 09:57:36,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:57:37,216 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:57:37,217 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.02.cil-1.c [2024-11-16 09:57:37,236 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60dd41e40/734758799ca349e88bdad06f42f59415/FLAG3ea77c69f [2024-11-16 09:57:37,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60dd41e40/734758799ca349e88bdad06f42f59415 [2024-11-16 09:57:37,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:57:37,549 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:57:37,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:57:37,551 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:57:37,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:57:37,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:57:37" (1/1) ... [2024-11-16 09:57:37,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3303a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:37, skipping insertion in model container [2024-11-16 09:57:37,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:57:37" (1/1) ... [2024-11-16 09:57:37,605 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:57:37,783 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.02.cil-1.c[911,924] [2024-11-16 09:57:37,858 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.02.cil-1.c[8416,8429] [2024-11-16 09:57:37,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:57:37,904 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:57:37,916 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.02.cil-1.c[911,924] [2024-11-16 09:57:37,953 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.02.cil-1.c[8416,8429] [2024-11-16 09:57:37,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:57:38,015 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:57:38,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38 WrapperNode [2024-11-16 09:57:38,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:57:38,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:57:38,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:57:38,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:57:38,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (1/1) ... [2024-11-16 09:57:38,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (1/1) ... [2024-11-16 09:57:38,069 INFO L138 Inliner]: procedures = 59, calls = 67, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 497 [2024-11-16 09:57:38,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:57:38,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:57:38,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:57:38,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:57:38,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (1/1) ... [2024-11-16 09:57:38,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (1/1) ... [2024-11-16 09:57:38,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (1/1) ... [2024-11-16 09:57:38,119 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]. [2024-11-16 09:57:38,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (1/1) ... [2024-11-16 09:57:38,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (1/1) ... [2024-11-16 09:57:38,131 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (1/1) ... [2024-11-16 09:57:38,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (1/1) ... [2024-11-16 09:57:38,138 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (1/1) ... [2024-11-16 09:57:38,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (1/1) ... [2024-11-16 09:57:38,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:57:38,149 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:57:38,149 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:57:38,149 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:57:38,150 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (1/1) ... [2024-11-16 09:57:38,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:57:38,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:57:38,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:57:38,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:57:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:57:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:57:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:57:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-16 09:57:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-16 09:57:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-16 09:57:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-16 09:57:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-16 09:57:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-16 09:57:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-16 09:57:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-16 09:57:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-16 09:57:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-16 09:57:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-16 09:57:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-16 09:57:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-16 09:57:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-16 09:57:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-16 09:57:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-16 09:57:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-16 09:57:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-16 09:57:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-16 09:57:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-16 09:57:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:57:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-16 09:57:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-16 09:57:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-16 09:57:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-16 09:57:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:57:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:57:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-16 09:57:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-16 09:57:38,375 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:57:38,379 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:57:39,012 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L225: do_read_c_~a~0#1 := ~a_t~0; [2024-11-16 09:57:39,012 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-16 09:57:39,013 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: assume !(1 == ~q_free~0); [2024-11-16 09:57:39,102 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-11-16 09:57:39,102 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:57:39,124 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:57:39,125 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:57:39,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:57:39 BoogieIcfgContainer [2024-11-16 09:57:39,125 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:57:39,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:57:39,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:57:39,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:57:39,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:57:37" (1/3) ... [2024-11-16 09:57:39,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c122d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:57:39, skipping insertion in model container [2024-11-16 09:57:39,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:38" (2/3) ... [2024-11-16 09:57:39,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c122d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:57:39, skipping insertion in model container [2024-11-16 09:57:39,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:57:39" (3/3) ... [2024-11-16 09:57:39,136 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.02.cil-1.c [2024-11-16 09:57:39,154 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:57:39,155 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:57:39,227 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:57:39,234 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;@13659c34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:57:39,234 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:57:39,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 289 states, 240 states have (on average 1.4625) internal successors, (351), 246 states have internal predecessors, (351), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-16 09:57:39,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:57:39,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:39,255 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] [2024-11-16 09:57:39,256 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:39,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:39,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1970485833, now seen corresponding path program 1 times [2024-11-16 09:57:39,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:39,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741877271] [2024-11-16 09:57:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:39,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:39,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:39,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:39,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:57:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:39,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:57:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:39,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:57:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:39,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:57:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:39,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:57:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:39,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:39,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741877271] [2024-11-16 09:57:39,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741877271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:39,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:39,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:57:39,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465803521] [2024-11-16 09:57:39,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:39,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:57:39,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:39,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:57:39,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:57:39,910 INFO L87 Difference]: Start difference. First operand has 289 states, 240 states have (on average 1.4625) internal successors, (351), 246 states have internal predecessors, (351), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:57:40,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:40,988 INFO L93 Difference]: Finished difference Result 718 states and 1044 transitions. [2024-11-16 09:57:40,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:57:40,991 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-16 09:57:40,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:41,011 INFO L225 Difference]: With dead ends: 718 [2024-11-16 09:57:41,011 INFO L226 Difference]: Without dead ends: 434 [2024-11-16 09:57:41,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:57:41,024 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 720 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:41,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1233 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:57:41,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-16 09:57:41,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 394. [2024-11-16 09:57:41,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 325 states have (on average 1.3876923076923078) internal successors, (451), 331 states have internal predecessors, (451), 45 states have call successors, (45), 21 states have call predecessors, (45), 22 states have return successors, (48), 44 states have call predecessors, (48), 43 states have call successors, (48) [2024-11-16 09:57:41,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 544 transitions. [2024-11-16 09:57:41,209 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 544 transitions. Word has length 69 [2024-11-16 09:57:41,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:41,210 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 544 transitions. [2024-11-16 09:57:41,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:57:41,211 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 544 transitions. [2024-11-16 09:57:41,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:57:41,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:41,220 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] [2024-11-16 09:57:41,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:57:41,220 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:41,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:41,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1611042391, now seen corresponding path program 1 times [2024-11-16 09:57:41,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:41,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043808248] [2024-11-16 09:57:41,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:41,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:41,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:41,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:41,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:57:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:41,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:57:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:41,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:57:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:41,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:57:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:41,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:57:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:41,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:41,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:41,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043808248] [2024-11-16 09:57:41,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043808248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:41,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:41,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:57:41,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266542988] [2024-11-16 09:57:41,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:41,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:57:41,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:57:41,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:57:41,418 INFO L87 Difference]: Start difference. First operand 394 states and 544 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:57:42,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:42,526 INFO L93 Difference]: Finished difference Result 829 states and 1148 transitions. [2024-11-16 09:57:42,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 09:57:42,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-16 09:57:42,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:42,535 INFO L225 Difference]: With dead ends: 829 [2024-11-16 09:57:42,535 INFO L226 Difference]: Without dead ends: 595 [2024-11-16 09:57:42,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-16 09:57:42,560 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 702 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:42,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1654 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:57:42,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-16 09:57:42,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 518. [2024-11-16 09:57:42,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 427 states have (on average 1.379391100702576) internal successors, (589), 435 states have internal predecessors, (589), 58 states have call successors, (58), 28 states have call predecessors, (58), 31 states have return successors, (69), 58 states have call predecessors, (69), 56 states have call successors, (69) [2024-11-16 09:57:42,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 716 transitions. [2024-11-16 09:57:42,621 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 716 transitions. Word has length 69 [2024-11-16 09:57:42,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:42,622 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 716 transitions. [2024-11-16 09:57:42,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:57:42,622 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 716 transitions. [2024-11-16 09:57:42,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:57:42,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:42,628 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] [2024-11-16 09:57:42,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:57:42,628 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:42,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:42,630 INFO L85 PathProgramCache]: Analyzing trace with hash -917649686, now seen corresponding path program 1 times [2024-11-16 09:57:42,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:42,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648340083] [2024-11-16 09:57:42,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:42,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:42,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:42,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:42,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:57:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:42,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:57:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:42,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:57:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:42,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:57:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:42,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:57:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:42,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:42,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648340083] [2024-11-16 09:57:42,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648340083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:42,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:42,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 09:57:42,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403258881] [2024-11-16 09:57:42,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:42,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 09:57:42,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:42,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 09:57:42,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:57:42,844 INFO L87 Difference]: Start difference. First operand 518 states and 716 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-16 09:57:44,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:44,619 INFO L93 Difference]: Finished difference Result 2233 states and 3083 transitions. [2024-11-16 09:57:44,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 09:57:44,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 69 [2024-11-16 09:57:44,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:44,630 INFO L225 Difference]: With dead ends: 2233 [2024-11-16 09:57:44,630 INFO L226 Difference]: Without dead ends: 1863 [2024-11-16 09:57:44,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 09:57:44,637 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 2549 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2567 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:44,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2567 Valid, 1760 Invalid, 2071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:57:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2024-11-16 09:57:44,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1690. [2024-11-16 09:57:44,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1394 states have (on average 1.3285509325681493) internal successors, (1852), 1417 states have internal predecessors, (1852), 168 states have call successors, (168), 111 states have call predecessors, (168), 126 states have return successors, (202), 164 states have call predecessors, (202), 166 states have call successors, (202) [2024-11-16 09:57:44,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2222 transitions. [2024-11-16 09:57:44,799 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2222 transitions. Word has length 69 [2024-11-16 09:57:44,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:44,800 INFO L471 AbstractCegarLoop]: Abstraction has 1690 states and 2222 transitions. [2024-11-16 09:57:44,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-16 09:57:44,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2222 transitions. [2024-11-16 09:57:44,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:57:44,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:44,802 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] [2024-11-16 09:57:44,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:57:44,802 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:44,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:44,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2099722902, now seen corresponding path program 1 times [2024-11-16 09:57:44,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:44,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875176913] [2024-11-16 09:57:44,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:44,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:44,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:44,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:44,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:57:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:44,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:57:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:44,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:57:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:44,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 09:57:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:44,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:57:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:44,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:44,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:44,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875176913] [2024-11-16 09:57:44,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875176913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:44,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:44,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:57:44,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518845934] [2024-11-16 09:57:44,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:44,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:57:44,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:44,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:57:44,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:57:44,974 INFO L87 Difference]: Start difference. First operand 1690 states and 2222 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:57:45,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:45,846 INFO L93 Difference]: Finished difference Result 3358 states and 4433 transitions. [2024-11-16 09:57:45,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:57:45,846 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-16 09:57:45,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:45,857 INFO L225 Difference]: With dead ends: 3358 [2024-11-16 09:57:45,857 INFO L226 Difference]: Without dead ends: 1822 [2024-11-16 09:57:45,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:57:45,863 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 267 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:45,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 1629 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:57:45,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2024-11-16 09:57:45,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1730. [2024-11-16 09:57:45,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1426 states have (on average 1.3169705469845723) internal successors, (1878), 1449 states have internal predecessors, (1878), 168 states have call successors, (168), 111 states have call predecessors, (168), 134 states have return successors, (210), 172 states have call predecessors, (210), 166 states have call successors, (210) [2024-11-16 09:57:45,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2256 transitions. [2024-11-16 09:57:45,976 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2256 transitions. Word has length 70 [2024-11-16 09:57:45,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:45,977 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2256 transitions. [2024-11-16 09:57:45,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:57:45,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2256 transitions. [2024-11-16 09:57:45,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:57:45,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:45,979 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] [2024-11-16 09:57:45,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:57:45,979 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:45,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:45,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2071171147, now seen corresponding path program 1 times [2024-11-16 09:57:45,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:45,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274200203] [2024-11-16 09:57:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:45,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:46,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:46,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:46,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:57:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:46,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:57:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:46,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:57:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:46,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 09:57:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:46,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:57:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:46,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:46,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274200203] [2024-11-16 09:57:46,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274200203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:46,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:46,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 09:57:46,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307002081] [2024-11-16 09:57:46,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:46,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 09:57:46,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:46,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 09:57:46,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:57:46,144 INFO L87 Difference]: Start difference. First operand 1730 states and 2256 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 09:57:48,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:48,041 INFO L93 Difference]: Finished difference Result 5714 states and 7542 transitions. [2024-11-16 09:57:48,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 09:57:48,041 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 70 [2024-11-16 09:57:48,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:48,052 INFO L225 Difference]: With dead ends: 5714 [2024-11-16 09:57:48,053 INFO L226 Difference]: Without dead ends: 2101 [2024-11-16 09:57:48,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 09:57:48,061 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 2397 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:48,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2415 Valid, 2097 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [529 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:57:48,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2101 states. [2024-11-16 09:57:48,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 1916. [2024-11-16 09:57:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1916 states, 1540 states have (on average 1.285064935064935) internal successors, (1979), 1565 states have internal predecessors, (1979), 208 states have call successors, (208), 139 states have call predecessors, (208), 166 states have return successors, (256), 214 states have call predecessors, (256), 206 states have call successors, (256) [2024-11-16 09:57:48,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2443 transitions. [2024-11-16 09:57:48,210 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 2443 transitions. Word has length 70 [2024-11-16 09:57:48,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:48,211 INFO L471 AbstractCegarLoop]: Abstraction has 1916 states and 2443 transitions. [2024-11-16 09:57:48,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 09:57:48,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 2443 transitions. [2024-11-16 09:57:48,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:57:48,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:48,213 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] [2024-11-16 09:57:48,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:57:48,213 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:48,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:48,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1306554868, now seen corresponding path program 1 times [2024-11-16 09:57:48,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:48,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146621404] [2024-11-16 09:57:48,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:48,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:57:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:57:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 09:57:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:48,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:48,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146621404] [2024-11-16 09:57:48,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146621404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:48,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:48,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:57:48,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348718234] [2024-11-16 09:57:48,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:48,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:57:48,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:48,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:57:48,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:57:48,340 INFO L87 Difference]: Start difference. First operand 1916 states and 2443 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-16 09:57:49,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:49,312 INFO L93 Difference]: Finished difference Result 2248 states and 2926 transitions. [2024-11-16 09:57:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:57:49,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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 73 [2024-11-16 09:57:49,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:49,322 INFO L225 Difference]: With dead ends: 2248 [2024-11-16 09:57:49,323 INFO L226 Difference]: Without dead ends: 2113 [2024-11-16 09:57:49,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:57:49,325 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 686 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:49,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 822 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:57:49,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2024-11-16 09:57:49,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 2049. [2024-11-16 09:57:49,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1655 states have (on average 1.2942598187311178) internal successors, (2142), 1681 states have internal predecessors, (2142), 219 states have call successors, (219), 145 states have call predecessors, (219), 173 states have return successors, (270), 225 states have call predecessors, (270), 217 states have call successors, (270) [2024-11-16 09:57:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2631 transitions. [2024-11-16 09:57:49,518 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2631 transitions. Word has length 73 [2024-11-16 09:57:49,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:49,518 INFO L471 AbstractCegarLoop]: Abstraction has 2049 states and 2631 transitions. [2024-11-16 09:57:49,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-16 09:57:49,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2631 transitions. [2024-11-16 09:57:49,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:57:49,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:49,522 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] [2024-11-16 09:57:49,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:57:49,523 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:49,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:49,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1418782962, now seen corresponding path program 1 times [2024-11-16 09:57:49,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:49,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408001290] [2024-11-16 09:57:49,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:49,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:49,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:49,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:49,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:57:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:49,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:57:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:49,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 09:57:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:49,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:49,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408001290] [2024-11-16 09:57:49,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408001290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:49,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:49,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:49,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31878886] [2024-11-16 09:57:49,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:49,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:49,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:49,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:49,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:49,656 INFO L87 Difference]: Start difference. First operand 2049 states and 2631 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-16 09:57:50,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:50,917 INFO L93 Difference]: Finished difference Result 2545 states and 3344 transitions. [2024-11-16 09:57:50,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:57:50,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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 73 [2024-11-16 09:57:50,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:50,928 INFO L225 Difference]: With dead ends: 2545 [2024-11-16 09:57:50,928 INFO L226 Difference]: Without dead ends: 2277 [2024-11-16 09:57:50,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:57:50,931 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 679 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:50,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1359 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:57:50,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2277 states. [2024-11-16 09:57:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2277 to 2175. [2024-11-16 09:57:51,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2175 states, 1763 states have (on average 1.2994895065229721) internal successors, (2291), 1790 states have internal predecessors, (2291), 230 states have call successors, (230), 151 states have call predecessors, (230), 180 states have return successors, (283), 237 states have call predecessors, (283), 228 states have call successors, (283) [2024-11-16 09:57:51,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 2804 transitions. [2024-11-16 09:57:51,129 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 2804 transitions. Word has length 73 [2024-11-16 09:57:51,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:51,130 INFO L471 AbstractCegarLoop]: Abstraction has 2175 states and 2804 transitions. [2024-11-16 09:57:51,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-16 09:57:51,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 2804 transitions. [2024-11-16 09:57:51,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:57:51,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:51,132 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] [2024-11-16 09:57:51,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:57:51,132 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:51,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:51,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1699132851, now seen corresponding path program 1 times [2024-11-16 09:57:51,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:51,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842377304] [2024-11-16 09:57:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:51,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:51,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:51,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:51,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:57:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:51,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:57:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:51,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 09:57:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:51,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:51,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842377304] [2024-11-16 09:57:51,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842377304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:51,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:51,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:51,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553146689] [2024-11-16 09:57:51,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:51,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:51,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:51,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:51,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:51,252 INFO L87 Difference]: Start difference. First operand 2175 states and 2804 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-16 09:57:52,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:52,390 INFO L93 Difference]: Finished difference Result 2982 states and 3959 transitions. [2024-11-16 09:57:52,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:57:52,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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 73 [2024-11-16 09:57:52,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:52,404 INFO L225 Difference]: With dead ends: 2982 [2024-11-16 09:57:52,404 INFO L226 Difference]: Without dead ends: 2588 [2024-11-16 09:57:52,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:57:52,407 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 677 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:52,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 1357 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:57:52,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2024-11-16 09:57:52,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2428. [2024-11-16 09:57:52,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 1980 states have (on average 1.3080808080808082) internal successors, (2590), 2009 states have internal predecessors, (2590), 252 states have call successors, (252), 163 states have call predecessors, (252), 194 states have return successors, (313), 261 states have call predecessors, (313), 250 states have call successors, (313) [2024-11-16 09:57:52,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3155 transitions. [2024-11-16 09:57:52,639 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3155 transitions. Word has length 73 [2024-11-16 09:57:52,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:52,639 INFO L471 AbstractCegarLoop]: Abstraction has 2428 states and 3155 transitions. [2024-11-16 09:57:52,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-16 09:57:52,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3155 transitions. [2024-11-16 09:57:52,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:57:52,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:52,641 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:52,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:57:52,642 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:52,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:52,642 INFO L85 PathProgramCache]: Analyzing trace with hash -231486254, now seen corresponding path program 1 times [2024-11-16 09:57:52,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:52,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987189558] [2024-11-16 09:57:52,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:52,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:57:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:57:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 09:57:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:52,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:52,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987189558] [2024-11-16 09:57:52,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987189558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:52,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:52,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:52,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159416310] [2024-11-16 09:57:52,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:52,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:52,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:52,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:52,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:52,759 INFO L87 Difference]: Start difference. First operand 2428 states and 3155 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-16 09:57:53,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:53,936 INFO L93 Difference]: Finished difference Result 3979 states and 5364 transitions. [2024-11-16 09:57:53,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:57:53,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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 73 [2024-11-16 09:57:53,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:53,955 INFO L225 Difference]: With dead ends: 3979 [2024-11-16 09:57:53,956 INFO L226 Difference]: Without dead ends: 3332 [2024-11-16 09:57:53,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:57:53,961 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 808 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:53,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 1021 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:57:53,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2024-11-16 09:57:54,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 2923. [2024-11-16 09:57:54,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2407 states have (on average 1.3211466555878688) internal successors, (3180), 2440 states have internal predecessors, (3180), 292 states have call successors, (292), 187 states have call predecessors, (292), 222 states have return successors, (375), 305 states have call predecessors, (375), 290 states have call successors, (375) [2024-11-16 09:57:54,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 3847 transitions. [2024-11-16 09:57:54,229 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 3847 transitions. Word has length 73 [2024-11-16 09:57:54,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:54,229 INFO L471 AbstractCegarLoop]: Abstraction has 2923 states and 3847 transitions. [2024-11-16 09:57:54,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-16 09:57:54,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 3847 transitions. [2024-11-16 09:57:54,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:57:54,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:54,232 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] [2024-11-16 09:57:54,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:57:54,233 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:54,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:54,233 INFO L85 PathProgramCache]: Analyzing trace with hash 398972371, now seen corresponding path program 1 times [2024-11-16 09:57:54,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:54,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797737890] [2024-11-16 09:57:54,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:54,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:54,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:54,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:54,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:57:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:54,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:57:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:54,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 09:57:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:54,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:54,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:54,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797737890] [2024-11-16 09:57:54,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797737890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:54,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:54,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:54,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084033884] [2024-11-16 09:57:54,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:54,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:54,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:54,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:54,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:54,361 INFO L87 Difference]: Start difference. First operand 2923 states and 3847 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-16 09:57:55,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:55,630 INFO L93 Difference]: Finished difference Result 5684 states and 7770 transitions. [2024-11-16 09:57:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:57:55,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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 73 [2024-11-16 09:57:55,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:55,653 INFO L225 Difference]: With dead ends: 5684 [2024-11-16 09:57:55,653 INFO L226 Difference]: Without dead ends: 4542 [2024-11-16 09:57:55,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:57:55,658 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 724 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:55,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1338 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:57:55,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2024-11-16 09:57:55,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 3834. [2024-11-16 09:57:55,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3834 states, 3186 states have (on average 1.337727558066541) internal successors, (4262), 3227 states have internal predecessors, (4262), 368 states have call successors, (368), 235 states have call predecessors, (368), 278 states have return successors, (513), 389 states have call predecessors, (513), 366 states have call successors, (513) [2024-11-16 09:57:55,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3834 states to 3834 states and 5143 transitions. [2024-11-16 09:57:55,992 INFO L78 Accepts]: Start accepts. Automaton has 3834 states and 5143 transitions. Word has length 73 [2024-11-16 09:57:55,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:55,992 INFO L471 AbstractCegarLoop]: Abstraction has 3834 states and 5143 transitions. [2024-11-16 09:57:55,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-16 09:57:55,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3834 states and 5143 transitions. [2024-11-16 09:57:55,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:57:55,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:55,996 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] [2024-11-16 09:57:55,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:57:55,996 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:55,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:55,997 INFO L85 PathProgramCache]: Analyzing trace with hash 419309746, now seen corresponding path program 1 times [2024-11-16 09:57:55,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:55,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683857843] [2024-11-16 09:57:55,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:55,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:56,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:56,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:56,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:57:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:56,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:57:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:56,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 09:57:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:56,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:56,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:56,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683857843] [2024-11-16 09:57:56,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683857843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:56,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:56,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:56,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233664882] [2024-11-16 09:57:56,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:56,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:56,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:56,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:56,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:56,121 INFO L87 Difference]: Start difference. First operand 3834 states and 5143 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-16 09:57:57,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:57,426 INFO L93 Difference]: Finished difference Result 8714 states and 12106 transitions. [2024-11-16 09:57:57,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:57:57,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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 73 [2024-11-16 09:57:57,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:57,459 INFO L225 Difference]: With dead ends: 8714 [2024-11-16 09:57:57,460 INFO L226 Difference]: Without dead ends: 6661 [2024-11-16 09:57:57,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:57:57,470 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 682 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:57,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1321 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:57:57,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6661 states. [2024-11-16 09:57:57,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6661 to 5705. [2024-11-16 09:57:57,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5705 states, 4809 states have (on average 1.355791224786858) internal successors, (6520), 4866 states have internal predecessors, (6520), 508 states have call successors, (508), 327 states have call predecessors, (508), 386 states have return successors, (831), 545 states have call predecessors, (831), 506 states have call successors, (831) [2024-11-16 09:57:57,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5705 states to 5705 states and 7859 transitions. [2024-11-16 09:57:57,907 INFO L78 Accepts]: Start accepts. Automaton has 5705 states and 7859 transitions. Word has length 73 [2024-11-16 09:57:57,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:57,908 INFO L471 AbstractCegarLoop]: Abstraction has 5705 states and 7859 transitions. [2024-11-16 09:57:57,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-16 09:57:57,908 INFO L276 IsEmpty]: Start isEmpty. Operand 5705 states and 7859 transitions. [2024-11-16 09:57:57,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:57:57,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:57,913 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] [2024-11-16 09:57:57,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:57:57,913 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:57,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:57,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1112702451, now seen corresponding path program 1 times [2024-11-16 09:57:57,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:57,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8496575] [2024-11-16 09:57:57,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:57,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:57,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:57,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:57,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:57:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:57,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:57:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:57,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 09:57:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:57,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:57,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:57,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8496575] [2024-11-16 09:57:57,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8496575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:57,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:57,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:57:57,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283873690] [2024-11-16 09:57:57,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:57,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:57:57,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:57,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:57:57,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:57:57,990 INFO L87 Difference]: Start difference. First operand 5705 states and 7859 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-16 09:57:59,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:59,213 INFO L93 Difference]: Finished difference Result 12699 states and 17885 transitions. [2024-11-16 09:57:59,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:57:59,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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 73 [2024-11-16 09:57:59,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:59,254 INFO L225 Difference]: With dead ends: 12699 [2024-11-16 09:57:59,255 INFO L226 Difference]: Without dead ends: 8776 [2024-11-16 09:57:59,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:57:59,267 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 833 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:59,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 1028 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:57:59,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8776 states. [2024-11-16 09:57:59,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8776 to 7699. [2024-11-16 09:57:59,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7699 states, 6513 states have (on average 1.3520651005680946) internal successors, (8806), 6603 states have internal predecessors, (8806), 680 states have call successors, (680), 429 states have call predecessors, (680), 504 states have return successors, (1085), 700 states have call predecessors, (1085), 678 states have call successors, (1085) [2024-11-16 09:57:59,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7699 states to 7699 states and 10571 transitions. [2024-11-16 09:57:59,903 INFO L78 Accepts]: Start accepts. Automaton has 7699 states and 10571 transitions. Word has length 73 [2024-11-16 09:57:59,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:59,903 INFO L471 AbstractCegarLoop]: Abstraction has 7699 states and 10571 transitions. [2024-11-16 09:57:59,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-16 09:57:59,903 INFO L276 IsEmpty]: Start isEmpty. Operand 7699 states and 10571 transitions. [2024-11-16 09:57:59,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 09:57:59,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:59,914 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:59,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:57:59,915 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:59,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:59,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1945830810, now seen corresponding path program 1 times [2024-11-16 09:57:59,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:59,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24088821] [2024-11-16 09:57:59,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:59,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:59,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:59,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:59,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:57:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:00,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:58:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:00,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:58:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:00,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 09:58:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:00,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 09:58:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:00,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:58:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:00,038 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:58:00,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:00,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24088821] [2024-11-16 09:58:00,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24088821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:00,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:58:00,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:58:00,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121865996] [2024-11-16 09:58:00,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:00,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:58:00,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:00,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:58:00,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:58:00,041 INFO L87 Difference]: Start difference. First operand 7699 states and 10571 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:58:01,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:01,054 INFO L93 Difference]: Finished difference Result 9639 states and 13080 transitions. [2024-11-16 09:58:01,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 09:58:01,055 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 103 [2024-11-16 09:58:01,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:01,087 INFO L225 Difference]: With dead ends: 9639 [2024-11-16 09:58:01,087 INFO L226 Difference]: Without dead ends: 7877 [2024-11-16 09:58:01,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:58:01,096 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 391 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:01,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1385 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:58:01,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7877 states. [2024-11-16 09:58:01,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7877 to 7759. [2024-11-16 09:58:01,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7759 states, 6561 states have (on average 1.3485749123609205) internal successors, (8848), 6651 states have internal predecessors, (8848), 680 states have call successors, (680), 429 states have call predecessors, (680), 516 states have return successors, (1097), 712 states have call predecessors, (1097), 678 states have call successors, (1097) [2024-11-16 09:58:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7759 states to 7759 states and 10625 transitions. [2024-11-16 09:58:01,678 INFO L78 Accepts]: Start accepts. Automaton has 7759 states and 10625 transitions. Word has length 103 [2024-11-16 09:58:01,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:01,679 INFO L471 AbstractCegarLoop]: Abstraction has 7759 states and 10625 transitions. [2024-11-16 09:58:01,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:58:01,680 INFO L276 IsEmpty]: Start isEmpty. Operand 7759 states and 10625 transitions. [2024-11-16 09:58:01,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 09:58:01,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:01,690 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:01,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:58:01,690 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:01,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:01,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1044742757, now seen corresponding path program 1 times [2024-11-16 09:58:01,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:01,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160812073] [2024-11-16 09:58:01,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:01,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:01,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:01,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:58:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:01,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:58:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:01,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:58:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:01,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:58:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:01,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 09:58:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:01,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 09:58:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:01,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:58:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:01,865 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:58:01,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:01,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160812073] [2024-11-16 09:58:01,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160812073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:01,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:58:01,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:58:01,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769088286] [2024-11-16 09:58:01,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:01,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:58:01,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:01,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:58:01,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:58:01,867 INFO L87 Difference]: Start difference. First operand 7759 states and 10625 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:58:03,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:03,311 INFO L93 Difference]: Finished difference Result 9384 states and 12687 transitions. [2024-11-16 09:58:03,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 09:58:03,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 103 [2024-11-16 09:58:03,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:03,339 INFO L225 Difference]: With dead ends: 9384 [2024-11-16 09:58:03,340 INFO L226 Difference]: Without dead ends: 7817 [2024-11-16 09:58:03,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-16 09:58:03,348 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 712 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:03,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1257 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:58:03,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7817 states. [2024-11-16 09:58:04,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7817 to 7521. [2024-11-16 09:58:04,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7521 states, 6376 states have (on average 1.3508469259723965) internal successors, (8613), 6461 states have internal predecessors, (8613), 652 states have call successors, (652), 410 states have call predecessors, (652), 491 states have return successors, (1057), 682 states have call predecessors, (1057), 650 states have call successors, (1057) [2024-11-16 09:58:04,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7521 states to 7521 states and 10322 transitions. [2024-11-16 09:58:04,079 INFO L78 Accepts]: Start accepts. Automaton has 7521 states and 10322 transitions. Word has length 103 [2024-11-16 09:58:04,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:04,079 INFO L471 AbstractCegarLoop]: Abstraction has 7521 states and 10322 transitions. [2024-11-16 09:58:04,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:58:04,079 INFO L276 IsEmpty]: Start isEmpty. Operand 7521 states and 10322 transitions. [2024-11-16 09:58:04,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 09:58:04,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:04,089 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:04,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:58:04,089 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:04,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:04,090 INFO L85 PathProgramCache]: Analyzing trace with hash -943830790, now seen corresponding path program 1 times [2024-11-16 09:58:04,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:04,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932791878] [2024-11-16 09:58:04,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:04,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:58:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:58:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:58:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:58:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 09:58:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 09:58:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:58:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,182 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:58:04,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:04,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932791878] [2024-11-16 09:58:04,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932791878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:04,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:58:04,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:58:04,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705699782] [2024-11-16 09:58:04,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:04,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:58:04,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:04,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:58:04,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:58:04,184 INFO L87 Difference]: Start difference. First operand 7521 states and 10322 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-16 09:58:05,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:05,418 INFO L93 Difference]: Finished difference Result 10900 states and 14661 transitions. [2024-11-16 09:58:05,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 09:58:05,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 103 [2024-11-16 09:58:05,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:05,457 INFO L225 Difference]: With dead ends: 10900 [2024-11-16 09:58:05,458 INFO L226 Difference]: Without dead ends: 9317 [2024-11-16 09:58:05,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:58:05,470 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 775 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:05,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 839 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:58:05,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9317 states. [2024-11-16 09:58:06,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9317 to 9103. [2024-11-16 09:58:06,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9103 states, 7638 states have (on average 1.3294056035611417) internal successors, (10154), 7752 states have internal predecessors, (10154), 813 states have call successors, (813), 523 states have call predecessors, (813), 650 states have return successors, (1340), 861 states have call predecessors, (1340), 811 states have call successors, (1340) [2024-11-16 09:58:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9103 states to 9103 states and 12307 transitions. [2024-11-16 09:58:06,143 INFO L78 Accepts]: Start accepts. Automaton has 9103 states and 12307 transitions. Word has length 103 [2024-11-16 09:58:06,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:06,143 INFO L471 AbstractCegarLoop]: Abstraction has 9103 states and 12307 transitions. [2024-11-16 09:58:06,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-16 09:58:06,144 INFO L276 IsEmpty]: Start isEmpty. Operand 9103 states and 12307 transitions. [2024-11-16 09:58:06,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 09:58:06,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:06,153 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:06,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:58:06,154 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:06,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:06,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1385585285, now seen corresponding path program 1 times [2024-11-16 09:58:06,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:06,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118981293] [2024-11-16 09:58:06,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:06,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:58:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:58:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:58:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:58:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 09:58:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 09:58:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:58:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,220 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:58:06,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:06,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118981293] [2024-11-16 09:58:06,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118981293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:06,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:58:06,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:58:06,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761530218] [2024-11-16 09:58:06,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:06,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:58:06,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:06,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:58:06,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:58:06,224 INFO L87 Difference]: Start difference. First operand 9103 states and 12307 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:58:07,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:07,075 INFO L93 Difference]: Finished difference Result 10801 states and 14405 transitions. [2024-11-16 09:58:07,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:58:07,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 103 [2024-11-16 09:58:07,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:07,103 INFO L225 Difference]: With dead ends: 10801 [2024-11-16 09:58:07,104 INFO L226 Difference]: Without dead ends: 7636 [2024-11-16 09:58:07,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:58:07,116 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 511 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:07,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 679 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 09:58:07,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7636 states. [2024-11-16 09:58:07,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7636 to 7521. [2024-11-16 09:58:07,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7521 states, 6376 states have (on average 1.3450439146800501) internal successors, (8576), 6461 states have internal predecessors, (8576), 652 states have call successors, (652), 410 states have call predecessors, (652), 491 states have return successors, (1057), 682 states have call predecessors, (1057), 650 states have call successors, (1057) [2024-11-16 09:58:07,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7521 states to 7521 states and 10285 transitions. [2024-11-16 09:58:07,849 INFO L78 Accepts]: Start accepts. Automaton has 7521 states and 10285 transitions. Word has length 103 [2024-11-16 09:58:07,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:07,850 INFO L471 AbstractCegarLoop]: Abstraction has 7521 states and 10285 transitions. [2024-11-16 09:58:07,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:58:07,850 INFO L276 IsEmpty]: Start isEmpty. Operand 7521 states and 10285 transitions. [2024-11-16 09:58:07,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 09:58:07,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:07,861 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:07,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:58:07,861 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:07,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:07,862 INFO L85 PathProgramCache]: Analyzing trace with hash -99131333, now seen corresponding path program 1 times [2024-11-16 09:58:07,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:07,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674342560] [2024-11-16 09:58:07,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:07,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:07,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:07,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:58:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:07,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:58:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:07,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:58:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:08,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:58:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:08,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 09:58:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:08,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 09:58:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:08,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 09:58:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:08,022 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 09:58:08,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:08,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674342560] [2024-11-16 09:58:08,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674342560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:08,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:58:08,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:58:08,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812434925] [2024-11-16 09:58:08,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:08,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:58:08,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:08,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:58:08,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:58:08,025 INFO L87 Difference]: Start difference. First operand 7521 states and 10285 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:58:10,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:10,087 INFO L93 Difference]: Finished difference Result 10083 states and 13512 transitions. [2024-11-16 09:58:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-16 09:58:10,088 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 104 [2024-11-16 09:58:10,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:10,126 INFO L225 Difference]: With dead ends: 10083 [2024-11-16 09:58:10,126 INFO L226 Difference]: Without dead ends: 8340 [2024-11-16 09:58:10,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2024-11-16 09:58:10,139 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 1613 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:10,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1646 Valid, 1329 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:58:10,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8340 states. [2024-11-16 09:58:10,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8340 to 8160. [2024-11-16 09:58:10,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8160 states, 6861 states have (on average 1.3315843171549337) internal successors, (9136), 6954 states have internal predecessors, (9136), 729 states have call successors, (729), 458 states have call predecessors, (729), 568 states have return successors, (1188), 780 states have call predecessors, (1188), 727 states have call successors, (1188) [2024-11-16 09:58:10,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8160 states to 8160 states and 11053 transitions. [2024-11-16 09:58:10,884 INFO L78 Accepts]: Start accepts. Automaton has 8160 states and 11053 transitions. Word has length 104 [2024-11-16 09:58:10,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:10,884 INFO L471 AbstractCegarLoop]: Abstraction has 8160 states and 11053 transitions. [2024-11-16 09:58:10,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:58:10,884 INFO L276 IsEmpty]: Start isEmpty. Operand 8160 states and 11053 transitions. [2024-11-16 09:58:10,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 09:58:10,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:10,897 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:10,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:58:10,898 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:10,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:10,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1677337552, now seen corresponding path program 1 times [2024-11-16 09:58:10,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:10,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735879520] [2024-11-16 09:58:10,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:10,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:58:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:58:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:58:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 09:58:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 09:58:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:58:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:11,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:58:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:11,002 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:58:11,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:11,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735879520] [2024-11-16 09:58:11,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735879520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:58:11,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721194039] [2024-11-16 09:58:11,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:11,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:58:11,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:58:11,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:58:11,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:58:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:11,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:58:11,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:58:11,211 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:58:11,213 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:58:11,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721194039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:11,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:58:11,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:58:11,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330616629] [2024-11-16 09:58:11,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:11,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:58:11,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:11,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:58:11,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:58:11,215 INFO L87 Difference]: Start difference. First operand 8160 states and 11053 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:58:11,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:11,947 INFO L93 Difference]: Finished difference Result 19753 states and 27487 transitions. [2024-11-16 09:58:11,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:58:11,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 121 [2024-11-16 09:58:11,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:11,993 INFO L225 Difference]: With dead ends: 19753 [2024-11-16 09:58:11,993 INFO L226 Difference]: Without dead ends: 13836 [2024-11-16 09:58:12,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:58:12,016 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 312 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:12,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 531 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:58:12,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13836 states. [2024-11-16 09:58:13,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13836 to 13633. [2024-11-16 09:58:13,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13633 states, 11540 states have (on average 1.348786828422877) internal successors, (15565), 11698 states have internal predecessors, (15565), 1183 states have call successors, (1183), 750 states have call predecessors, (1183), 908 states have return successors, (1968), 1217 states have call predecessors, (1968), 1181 states have call successors, (1968) [2024-11-16 09:58:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13633 states to 13633 states and 18716 transitions. [2024-11-16 09:58:13,093 INFO L78 Accepts]: Start accepts. Automaton has 13633 states and 18716 transitions. Word has length 121 [2024-11-16 09:58:13,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:13,093 INFO L471 AbstractCegarLoop]: Abstraction has 13633 states and 18716 transitions. [2024-11-16 09:58:13,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:58:13,093 INFO L276 IsEmpty]: Start isEmpty. Operand 13633 states and 18716 transitions. [2024-11-16 09:58:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 09:58:13,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:13,113 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:13,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 09:58:13,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 09:58:13,314 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:13,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:13,314 INFO L85 PathProgramCache]: Analyzing trace with hash 2066929546, now seen corresponding path program 1 times [2024-11-16 09:58:13,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:13,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748610386] [2024-11-16 09:58:13,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:13,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:13,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:13,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:58:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:13,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:58:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:13,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:58:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:13,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 09:58:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:13,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 09:58:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:13,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:58:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:13,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:58:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:13,434 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:58:13,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:13,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748610386] [2024-11-16 09:58:13,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748610386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:58:13,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28673241] [2024-11-16 09:58:13,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:13,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:58:13,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:58:13,436 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:58:13,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:58:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:13,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:58:13,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:58:13,619 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 09:58:13,621 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:58:13,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28673241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:13,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:58:13,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:58:13,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711615261] [2024-11-16 09:58:13,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:13,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:58:13,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:13,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:58:13,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:58:13,623 INFO L87 Difference]: Start difference. First operand 13633 states and 18716 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:58:15,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:15,057 INFO L93 Difference]: Finished difference Result 35920 states and 50268 transitions. [2024-11-16 09:58:15,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:58:15,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 121 [2024-11-16 09:58:15,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:15,138 INFO L225 Difference]: With dead ends: 35920 [2024-11-16 09:58:15,138 INFO L226 Difference]: Without dead ends: 24530 [2024-11-16 09:58:15,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:58:15,174 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 318 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:15,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 531 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:58:15,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24530 states. [2024-11-16 09:58:17,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24530 to 24127. [2024-11-16 09:58:17,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24127 states, 20488 states have (on average 1.3599668098399063) internal successors, (27863), 20776 states have internal predecessors, (27863), 2057 states have call successors, (2057), 1326 states have call predecessors, (2057), 1580 states have return successors, (3494), 2057 states have call predecessors, (3494), 2055 states have call successors, (3494) [2024-11-16 09:58:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24127 states to 24127 states and 33414 transitions. [2024-11-16 09:58:17,599 INFO L78 Accepts]: Start accepts. Automaton has 24127 states and 33414 transitions. Word has length 121 [2024-11-16 09:58:17,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:17,599 INFO L471 AbstractCegarLoop]: Abstraction has 24127 states and 33414 transitions. [2024-11-16 09:58:17,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:58:17,600 INFO L276 IsEmpty]: Start isEmpty. Operand 24127 states and 33414 transitions. [2024-11-16 09:58:17,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 09:58:17,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:17,625 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:17,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:58:17,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:58:17,830 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:17,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:17,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1289726012, now seen corresponding path program 1 times [2024-11-16 09:58:17,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:17,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739580793] [2024-11-16 09:58:17,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:17,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:17,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:17,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:58:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:17,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:58:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:17,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:58:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:17,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 09:58:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:17,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 09:58:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:17,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:58:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:17,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:58:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:17,932 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:58:17,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:17,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739580793] [2024-11-16 09:58:17,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739580793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:58:17,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084736592] [2024-11-16 09:58:17,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:17,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:58:17,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:58:17,936 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:58:17,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 09:58:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:18,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:58:18,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:58:18,074 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:58:18,074 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:58:18,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084736592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:18,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:58:18,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:58:18,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766356323] [2024-11-16 09:58:18,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:18,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:58:18,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:18,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:58:18,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:58:18,076 INFO L87 Difference]: Start difference. First operand 24127 states and 33414 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:58:20,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:20,380 INFO L93 Difference]: Finished difference Result 66118 states and 93491 transitions. [2024-11-16 09:58:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:58:20,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 121 [2024-11-16 09:58:20,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:20,510 INFO L225 Difference]: With dead ends: 66118 [2024-11-16 09:58:20,510 INFO L226 Difference]: Without dead ends: 44235 [2024-11-16 09:58:20,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:58:20,568 INFO L432 NwaCegarLoop]: 527 mSDtfsCounter, 164 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:20,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 879 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:58:20,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44235 states. [2024-11-16 09:58:24,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44235 to 44235. [2024-11-16 09:58:24,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44235 states, 37709 states have (on average 1.3617438807711686) internal successors, (51350), 38190 states have internal predecessors, (51350), 3662 states have call successors, (3662), 2416 states have call predecessors, (3662), 2862 states have return successors, (6837), 3693 states have call predecessors, (6837), 3660 states have call successors, (6837) [2024-11-16 09:58:24,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44235 states to 44235 states and 61849 transitions. [2024-11-16 09:58:24,627 INFO L78 Accepts]: Start accepts. Automaton has 44235 states and 61849 transitions. Word has length 121 [2024-11-16 09:58:24,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:24,628 INFO L471 AbstractCegarLoop]: Abstraction has 44235 states and 61849 transitions. [2024-11-16 09:58:24,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:58:24,628 INFO L276 IsEmpty]: Start isEmpty. Operand 44235 states and 61849 transitions. [2024-11-16 09:58:24,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 09:58:24,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:24,706 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:24,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 09:58:24,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:58:24,907 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:24,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:24,908 INFO L85 PathProgramCache]: Analyzing trace with hash -334385453, now seen corresponding path program 1 times [2024-11-16 09:58:24,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:24,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241092981] [2024-11-16 09:58:24,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:24,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:58:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:58:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:58:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:58:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 09:58:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 09:58:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 09:58:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 09:58:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:58:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 09:58:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:58:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:58:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 09:58:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:58:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:58:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 09:58:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,096 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-16 09:58:25,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:25,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241092981] [2024-11-16 09:58:25,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241092981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:58:25,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846799231] [2024-11-16 09:58:25,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:25,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:58:25,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:58:25,100 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:58:25,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 09:58:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:25,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:58:25,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:58:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-16 09:58:25,341 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:58:25,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846799231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:25,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:58:25,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-16 09:58:25,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399318605] [2024-11-16 09:58:25,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:25,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:58:25,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:25,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:58:25,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:58:25,343 INFO L87 Difference]: Start difference. First operand 44235 states and 61849 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 09:58:28,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:28,587 INFO L93 Difference]: Finished difference Result 48418 states and 66935 transitions. [2024-11-16 09:58:28,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:58:28,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 179 [2024-11-16 09:58:28,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:28,730 INFO L225 Difference]: With dead ends: 48418 [2024-11-16 09:58:28,730 INFO L226 Difference]: Without dead ends: 46279 [2024-11-16 09:58:28,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:58:28,751 INFO L432 NwaCegarLoop]: 362 mSDtfsCounter, 64 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:28,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 699 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:58:28,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46279 states. [2024-11-16 09:58:32,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46279 to 46236. [2024-11-16 09:58:32,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46236 states, 39297 states have (on average 1.3546835636308114) internal successors, (53235), 39801 states have internal predecessors, (53235), 3869 states have call successors, (3869), 2577 states have call predecessors, (3869), 3068 states have return successors, (7105), 3922 states have call predecessors, (7105), 3867 states have call successors, (7105) [2024-11-16 09:58:32,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46236 states to 46236 states and 64209 transitions. [2024-11-16 09:58:32,486 INFO L78 Accepts]: Start accepts. Automaton has 46236 states and 64209 transitions. Word has length 179 [2024-11-16 09:58:32,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:32,486 INFO L471 AbstractCegarLoop]: Abstraction has 46236 states and 64209 transitions. [2024-11-16 09:58:32,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 09:58:32,487 INFO L276 IsEmpty]: Start isEmpty. Operand 46236 states and 64209 transitions. [2024-11-16 09:58:32,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 09:58:32,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:32,564 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:32,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 09:58:32,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:58:32,765 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:32,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:32,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1567460089, now seen corresponding path program 1 times [2024-11-16 09:58:32,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:32,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524782332] [2024-11-16 09:58:32,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:32,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:32,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:32,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:58:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:32,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:58:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:32,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:58:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:32,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 09:58:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:32,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 09:58:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:32,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 09:58:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:32,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:58:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:32,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 09:58:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:32,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:58:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:32,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 09:58:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:32,920 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-16 09:58:32,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:32,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524782332] [2024-11-16 09:58:32,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524782332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:58:32,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274121163] [2024-11-16 09:58:32,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:32,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:58:32,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:58:32,923 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:58:32,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 09:58:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:33,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:58:33,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:58:33,093 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-16 09:58:33,094 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:58:33,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274121163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:33,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:58:33,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:58:33,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491644708] [2024-11-16 09:58:33,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:33,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:58:33,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:33,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:58:33,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:58:33,096 INFO L87 Difference]: Start difference. First operand 46236 states and 64209 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10)