/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 01:43:18,440 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 01:43:18,496 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 01:43:18,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 01:43:18,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 01:43:18,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 01:43:18,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 01:43:18,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 01:43:18,529 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 01:43:18,532 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 01:43:18,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 01:43:18,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 01:43:18,532 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 01:43:18,533 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 01:43:18,533 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 01:43:18,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 01:43:18,534 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 01:43:18,534 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 01:43:18,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 01:43:18,535 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 01:43:18,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 01:43:18,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 01:43:18,536 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 01:43:18,536 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 01:43:18,536 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 01:43:18,536 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 01:43:18,536 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 01:43:18,536 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 01:43:18,537 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 01:43:18,537 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 01:43:18,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 01:43:18,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 01:43:18,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 01:43:18,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 01:43:18,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 01:43:18,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 01:43:18,538 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 01:43:18,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 01:43:18,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 01:43:18,539 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 01:43:18,539 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 01:43:18,539 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 01:43:18,539 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 01:43:18,539 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 01:43:18,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 01:43:18,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 01:43:18,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 01:43:18,745 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 01:43:18,747 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 01:43:18,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c [2023-12-19 01:43:19,772 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 01:43:19,958 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 01:43:19,972 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c [2023-12-19 01:43:19,987 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2697e634d/b0f54e9f63ce4692a8a8a62769c64f16/FLAG0d8f4fd57 [2023-12-19 01:43:19,998 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2697e634d/b0f54e9f63ce4692a8a8a62769c64f16 [2023-12-19 01:43:20,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 01:43:20,001 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 01:43:20,002 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 01:43:20,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 01:43:20,005 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 01:43:20,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:43:19" (1/1) ... [2023-12-19 01:43:20,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d931087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20, skipping insertion in model container [2023-12-19 01:43:20,007 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:43:19" (1/1) ... [2023-12-19 01:43:20,070 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 01:43:20,181 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c[911,924] [2023-12-19 01:43:20,234 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c[8416,8429] [2023-12-19 01:43:20,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 01:43:20,323 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 01:43:20,340 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c[911,924] [2023-12-19 01:43:20,354 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c[8416,8429] [2023-12-19 01:43:20,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 01:43:20,421 INFO L206 MainTranslator]: Completed translation [2023-12-19 01:43:20,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20 WrapperNode [2023-12-19 01:43:20,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 01:43:20,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 01:43:20,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 01:43:20,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 01:43:20,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (1/1) ... [2023-12-19 01:43:20,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (1/1) ... [2023-12-19 01:43:20,487 INFO L138 Inliner]: procedures = 81, calls = 100, calls flagged for inlining = 50, calls inlined = 50, statements flattened = 1166 [2023-12-19 01:43:20,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 01:43:20,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 01:43:20,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 01:43:20,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 01:43:20,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (1/1) ... [2023-12-19 01:43:20,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (1/1) ... [2023-12-19 01:43:20,504 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (1/1) ... [2023-12-19 01:43:20,523 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]. [2023-12-19 01:43:20,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (1/1) ... [2023-12-19 01:43:20,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (1/1) ... [2023-12-19 01:43:20,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (1/1) ... [2023-12-19 01:43:20,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (1/1) ... [2023-12-19 01:43:20,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (1/1) ... [2023-12-19 01:43:20,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (1/1) ... [2023-12-19 01:43:20,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 01:43:20,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 01:43:20,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 01:43:20,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 01:43:20,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (1/1) ... [2023-12-19 01:43:20,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 01:43:20,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:43:20,675 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) [2023-12-19 01:43:20,710 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 [2023-12-19 01:43:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 01:43:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-19 01:43:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-19 01:43:20,719 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-19 01:43:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-19 01:43:20,719 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-19 01:43:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-19 01:43:20,719 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-19 01:43:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-19 01:43:20,720 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-19 01:43:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-19 01:43:20,720 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-19 01:43:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-19 01:43:20,720 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-19 01:43:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-19 01:43:20,720 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-19 01:43:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-19 01:43:20,720 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-19 01:43:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-19 01:43:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-19 01:43:20,721 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-19 01:43:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-19 01:43:20,721 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-19 01:43:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 01:43:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-19 01:43:20,722 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-19 01:43:20,722 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-19 01:43:20,722 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-19 01:43:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 01:43:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 01:43:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-19 01:43:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-19 01:43:20,850 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 01:43:20,852 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 01:43:21,563 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2023-12-19 01:43:21,563 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2023-12-19 01:43:21,631 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 01:43:21,695 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 01:43:21,696 INFO L309 CfgBuilder]: Removed 20 assume(true) statements. [2023-12-19 01:43:21,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:43:21 BoogieIcfgContainer [2023-12-19 01:43:21,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 01:43:21,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 01:43:21,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 01:43:21,701 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 01:43:21,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 01:43:19" (1/3) ... [2023-12-19 01:43:21,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4935dd88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:43:21, skipping insertion in model container [2023-12-19 01:43:21,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:43:20" (2/3) ... [2023-12-19 01:43:21,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4935dd88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:43:21, skipping insertion in model container [2023-12-19 01:43:21,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:43:21" (3/3) ... [2023-12-19 01:43:21,703 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.13.cil-2.c [2023-12-19 01:43:21,716 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 01:43:21,716 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-19 01:43:21,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 01:43:21,762 INFO L357 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, mHoare=true, 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;@16a37c1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 01:43:21,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-19 01:43:21,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 475 states, 415 states have (on average 1.7180722891566265) internal successors, (713), 421 states have internal predecessors, (713), 43 states have call successors, (43), 14 states have call predecessors, (43), 14 states have return successors, (43), 42 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-19 01:43:21,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-19 01:43:21,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:21,778 INFO L195 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] [2023-12-19 01:43:21,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:21,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:21,783 INFO L85 PathProgramCache]: Analyzing trace with hash 732893208, now seen corresponding path program 1 times [2023-12-19 01:43:21,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:21,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198540882] [2023-12-19 01:43:21,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:21,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:22,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:22,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:43:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:22,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:43:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:43:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:22,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:43:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:22,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:43:22,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:22,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198540882] [2023-12-19 01:43:22,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198540882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:22,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:22,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 01:43:22,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833995528] [2023-12-19 01:43:22,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:22,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 01:43:22,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:22,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 01:43:22,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 01:43:22,323 INFO L87 Difference]: Start difference. First operand has 475 states, 415 states have (on average 1.7180722891566265) internal successors, (713), 421 states have internal predecessors, (713), 43 states have call successors, (43), 14 states have call predecessors, (43), 14 states have return successors, (43), 42 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 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) [2023-12-19 01:43:23,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:23,541 INFO L93 Difference]: Finished difference Result 1062 states and 1773 transitions. [2023-12-19 01:43:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:43:23,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 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 57 [2023-12-19 01:43:23,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:23,553 INFO L225 Difference]: With dead ends: 1062 [2023-12-19 01:43:23,553 INFO L226 Difference]: Without dead ends: 608 [2023-12-19 01:43:23,558 INFO L412 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 [2023-12-19 01:43:23,560 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 1266 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:23,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 1620 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 01:43:23,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2023-12-19 01:43:23,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 571. [2023-12-19 01:43:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 491 states have (on average 1.5926680244399185) internal successors, (782), 497 states have internal predecessors, (782), 56 states have call successors, (56), 21 states have call predecessors, (56), 22 states have return successors, (59), 55 states have call predecessors, (59), 54 states have call successors, (59) [2023-12-19 01:43:23,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 897 transitions. [2023-12-19 01:43:23,622 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 897 transitions. Word has length 57 [2023-12-19 01:43:23,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:23,622 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 897 transitions. [2023-12-19 01:43:23,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 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) [2023-12-19 01:43:23,622 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 897 transitions. [2023-12-19 01:43:23,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-19 01:43:23,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:23,625 INFO L195 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] [2023-12-19 01:43:23,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 01:43:23,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:23,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:23,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1211099560, now seen corresponding path program 1 times [2023-12-19 01:43:23,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:23,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26453714] [2023-12-19 01:43:23,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:23,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:23,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:23,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:43:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:23,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:43:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:43:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:23,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:43:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:43:23,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:23,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26453714] [2023-12-19 01:43:23,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26453714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:23,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:23,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 01:43:23,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977780516] [2023-12-19 01:43:23,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:23,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 01:43:23,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:23,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 01:43:23,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-19 01:43:23,834 INFO L87 Difference]: Start difference. First operand 571 states and 897 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 7 states have internal predecessors, (42), 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) [2023-12-19 01:43:25,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:25,546 INFO L93 Difference]: Finished difference Result 1506 states and 2259 transitions. [2023-12-19 01:43:25,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-19 01:43:25,551 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 7 states have internal predecessors, (42), 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 57 [2023-12-19 01:43:25,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:25,562 INFO L225 Difference]: With dead ends: 1506 [2023-12-19 01:43:25,562 INFO L226 Difference]: Without dead ends: 1306 [2023-12-19 01:43:25,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2023-12-19 01:43:25,565 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 3832 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3852 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:25,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3852 Valid, 2489 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-19 01:43:25,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2023-12-19 01:43:25,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1187. [2023-12-19 01:43:25,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 977 states have (on average 1.4984646878198566) internal successors, (1464), 991 states have internal predecessors, (1464), 127 states have call successors, (127), 74 states have call predecessors, (127), 81 states have return successors, (139), 123 states have call predecessors, (139), 125 states have call successors, (139) [2023-12-19 01:43:25,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1730 transitions. [2023-12-19 01:43:25,646 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1730 transitions. Word has length 57 [2023-12-19 01:43:25,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:25,646 INFO L495 AbstractCegarLoop]: Abstraction has 1187 states and 1730 transitions. [2023-12-19 01:43:25,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 7 states have internal predecessors, (42), 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) [2023-12-19 01:43:25,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1730 transitions. [2023-12-19 01:43:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 01:43:25,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:25,650 INFO L195 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] [2023-12-19 01:43:25,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 01:43:25,650 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:25,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:25,651 INFO L85 PathProgramCache]: Analyzing trace with hash -2002493543, now seen corresponding path program 1 times [2023-12-19 01:43:25,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:25,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812863644] [2023-12-19 01:43:25,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:25,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:25,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:25,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:43:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:25,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:25,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:25,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 01:43:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:25,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:43:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:43:25,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:25,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812863644] [2023-12-19 01:43:25,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812863644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:25,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:25,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 01:43:25,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743262491] [2023-12-19 01:43:25,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:25,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 01:43:25,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:25,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 01:43:25,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:43:25,758 INFO L87 Difference]: Start difference. First operand 1187 states and 1730 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 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) [2023-12-19 01:43:26,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:26,939 INFO L93 Difference]: Finished difference Result 2125 states and 3036 transitions. [2023-12-19 01:43:26,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 01:43:26,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 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 58 [2023-12-19 01:43:26,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:26,945 INFO L225 Difference]: With dead ends: 2125 [2023-12-19 01:43:26,945 INFO L226 Difference]: Without dead ends: 1315 [2023-12-19 01:43:26,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:43:26,948 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 672 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:26,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 2633 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 01:43:26,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2023-12-19 01:43:26,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1211. [2023-12-19 01:43:26,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1211 states, 995 states have (on average 1.48643216080402) internal successors, (1479), 1009 states have internal predecessors, (1479), 127 states have call successors, (127), 74 states have call predecessors, (127), 87 states have return successors, (145), 129 states have call predecessors, (145), 125 states have call successors, (145) [2023-12-19 01:43:26,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1751 transitions. [2023-12-19 01:43:26,997 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1751 transitions. Word has length 58 [2023-12-19 01:43:26,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:26,997 INFO L495 AbstractCegarLoop]: Abstraction has 1211 states and 1751 transitions. [2023-12-19 01:43:26,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 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) [2023-12-19 01:43:26,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1751 transitions. [2023-12-19 01:43:26,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 01:43:26,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:26,998 INFO L195 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] [2023-12-19 01:43:26,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 01:43:26,999 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:26,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:26,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2074880101, now seen corresponding path program 1 times [2023-12-19 01:43:26,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:26,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040399694] [2023-12-19 01:43:26,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:27,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:27,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:27,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:27,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:43:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:27,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:27,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:27,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 01:43:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:27,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:43:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:27,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:43:27,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:27,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040399694] [2023-12-19 01:43:27,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040399694] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:27,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:27,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 01:43:27,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566542831] [2023-12-19 01:43:27,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:27,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 01:43:27,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:27,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 01:43:27,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-19 01:43:27,130 INFO L87 Difference]: Start difference. First operand 1211 states and 1751 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 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) [2023-12-19 01:43:28,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:28,746 INFO L93 Difference]: Finished difference Result 3343 states and 4732 transitions. [2023-12-19 01:43:28,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-19 01:43:28,746 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 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 58 [2023-12-19 01:43:28,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:28,753 INFO L225 Difference]: With dead ends: 3343 [2023-12-19 01:43:28,754 INFO L226 Difference]: Without dead ends: 1441 [2023-12-19 01:43:28,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2023-12-19 01:43:28,767 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 3892 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 2185 mSolverCounterSat, 627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3912 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 2812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 2185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:28,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3912 Valid, 2526 Invalid, 2812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 2185 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 01:43:28,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2023-12-19 01:43:28,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1304. [2023-12-19 01:43:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1053 states have (on average 1.4444444444444444) internal successors, (1521), 1067 states have internal predecessors, (1521), 147 states have call successors, (147), 88 states have call predecessors, (147), 102 states have return successors, (166), 150 states have call predecessors, (166), 145 states have call successors, (166) [2023-12-19 01:43:28,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1834 transitions. [2023-12-19 01:43:28,859 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1834 transitions. Word has length 58 [2023-12-19 01:43:28,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:28,860 INFO L495 AbstractCegarLoop]: Abstraction has 1304 states and 1834 transitions. [2023-12-19 01:43:28,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 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) [2023-12-19 01:43:28,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1834 transitions. [2023-12-19 01:43:28,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-19 01:43:28,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:28,862 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 01:43:28,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 01:43:28,862 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:28,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:28,862 INFO L85 PathProgramCache]: Analyzing trace with hash -223194466, now seen corresponding path program 1 times [2023-12-19 01:43:28,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:28,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563013500] [2023-12-19 01:43:28,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:28,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:28,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:28,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:28,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:43:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:28,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:28,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:28,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 01:43:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:29,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 01:43:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 01:43:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 01:43:29,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:29,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563013500] [2023-12-19 01:43:29,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563013500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:29,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:29,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 01:43:29,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087702934] [2023-12-19 01:43:29,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:29,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 01:43:29,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:29,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 01:43:29,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:43:29,007 INFO L87 Difference]: Start difference. First operand 1304 states and 1834 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 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) [2023-12-19 01:43:30,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:30,179 INFO L93 Difference]: Finished difference Result 2390 states and 3294 transitions. [2023-12-19 01:43:30,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 01:43:30,179 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 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 80 [2023-12-19 01:43:30,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:30,188 INFO L225 Difference]: With dead ends: 2390 [2023-12-19 01:43:30,189 INFO L226 Difference]: Without dead ends: 1463 [2023-12-19 01:43:30,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-19 01:43:30,195 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 668 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:30,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 2598 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 01:43:30,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2023-12-19 01:43:30,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1336. [2023-12-19 01:43:30,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1077 states have (on average 1.4317548746518105) internal successors, (1542), 1091 states have internal predecessors, (1542), 147 states have call successors, (147), 88 states have call predecessors, (147), 110 states have return successors, (174), 158 states have call predecessors, (174), 145 states have call successors, (174) [2023-12-19 01:43:30,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1863 transitions. [2023-12-19 01:43:30,260 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1863 transitions. Word has length 80 [2023-12-19 01:43:30,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:30,260 INFO L495 AbstractCegarLoop]: Abstraction has 1336 states and 1863 transitions. [2023-12-19 01:43:30,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 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) [2023-12-19 01:43:30,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1863 transitions. [2023-12-19 01:43:30,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-19 01:43:30,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:30,262 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 01:43:30,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 01:43:30,262 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:30,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:30,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1705078236, now seen corresponding path program 1 times [2023-12-19 01:43:30,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:30,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395051104] [2023-12-19 01:43:30,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:30,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:30,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:30,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:43:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:30,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:30,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 01:43:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:30,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 01:43:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:30,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 01:43:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:30,422 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 01:43:30,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:30,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395051104] [2023-12-19 01:43:30,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395051104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:30,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:30,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 01:43:30,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131288200] [2023-12-19 01:43:30,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:30,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 01:43:30,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:30,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 01:43:30,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 01:43:30,424 INFO L87 Difference]: Start difference. First operand 1336 states and 1863 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 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) [2023-12-19 01:43:31,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:31,621 INFO L93 Difference]: Finished difference Result 3210 states and 4304 transitions. [2023-12-19 01:43:31,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 01:43:31,621 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 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 80 [2023-12-19 01:43:31,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:31,629 INFO L225 Difference]: With dead ends: 3210 [2023-12-19 01:43:31,629 INFO L226 Difference]: Without dead ends: 2252 [2023-12-19 01:43:31,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2023-12-19 01:43:31,631 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 1470 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:31,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1985 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1870 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 01:43:31,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2023-12-19 01:43:31,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1958. [2023-12-19 01:43:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1958 states, 1551 states have (on average 1.3868471953578336) internal successors, (2151), 1578 states have internal predecessors, (2151), 223 states have call successors, (223), 141 states have call predecessors, (223), 182 states have return successors, (287), 241 states have call predecessors, (287), 221 states have call successors, (287) [2023-12-19 01:43:31,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1958 states to 1958 states and 2661 transitions. [2023-12-19 01:43:31,707 INFO L78 Accepts]: Start accepts. Automaton has 1958 states and 2661 transitions. Word has length 80 [2023-12-19 01:43:31,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:31,707 INFO L495 AbstractCegarLoop]: Abstraction has 1958 states and 2661 transitions. [2023-12-19 01:43:31,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 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) [2023-12-19 01:43:31,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1958 states and 2661 transitions. [2023-12-19 01:43:31,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-19 01:43:31,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:31,709 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 01:43:31,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 01:43:31,709 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:31,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:31,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2128724958, now seen corresponding path program 1 times [2023-12-19 01:43:31,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:31,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817177730] [2023-12-19 01:43:31,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:31,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:31,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:31,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:31,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:43:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:31,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:31,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:31,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 01:43:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:31,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 01:43:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:31,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 01:43:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:31,784 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-19 01:43:31,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:31,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817177730] [2023-12-19 01:43:31,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817177730] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:31,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:31,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:43:31,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508949648] [2023-12-19 01:43:31,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:31,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:43:31,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:31,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:43:31,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:43:31,785 INFO L87 Difference]: Start difference. First operand 1958 states and 2661 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 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) [2023-12-19 01:43:32,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:32,580 INFO L93 Difference]: Finished difference Result 5331 states and 7157 transitions. [2023-12-19 01:43:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 01:43:32,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 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 80 [2023-12-19 01:43:32,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:32,595 INFO L225 Difference]: With dead ends: 5331 [2023-12-19 01:43:32,595 INFO L226 Difference]: Without dead ends: 3753 [2023-12-19 01:43:32,599 INFO L412 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 [2023-12-19 01:43:32,600 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1759 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:32,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1794 Valid, 1305 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 01:43:32,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2023-12-19 01:43:32,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3537. [2023-12-19 01:43:32,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 2749 states have (on average 1.336485994907239) internal successors, (3674), 2812 states have internal predecessors, (3674), 416 states have call successors, (416), 275 states have call predecessors, (416), 370 states have return successors, (627), 454 states have call predecessors, (627), 414 states have call successors, (627) [2023-12-19 01:43:32,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 4717 transitions. [2023-12-19 01:43:32,743 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 4717 transitions. Word has length 80 [2023-12-19 01:43:32,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:32,743 INFO L495 AbstractCegarLoop]: Abstraction has 3537 states and 4717 transitions. [2023-12-19 01:43:32,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 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) [2023-12-19 01:43:32,743 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 4717 transitions. [2023-12-19 01:43:32,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-19 01:43:32,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:32,746 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 01:43:32,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 01:43:32,746 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:32,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:32,746 INFO L85 PathProgramCache]: Analyzing trace with hash -2089341540, now seen corresponding path program 1 times [2023-12-19 01:43:32,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:32,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192871906] [2023-12-19 01:43:32,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:32,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:32,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:32,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:32,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:43:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:32,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:32,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:32,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 01:43:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:32,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 01:43:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:32,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 01:43:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:32,808 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 01:43:32,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:32,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192871906] [2023-12-19 01:43:32,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192871906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:32,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:32,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 01:43:32,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760153032] [2023-12-19 01:43:32,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:32,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 01:43:32,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:32,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 01:43:32,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:43:32,811 INFO L87 Difference]: Start difference. First operand 3537 states and 4717 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-12-19 01:43:33,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:33,408 INFO L93 Difference]: Finished difference Result 5231 states and 6876 transitions. [2023-12-19 01:43:33,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 01:43:33,408 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 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 80 [2023-12-19 01:43:33,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:33,416 INFO L225 Difference]: With dead ends: 5231 [2023-12-19 01:43:33,416 INFO L226 Difference]: Without dead ends: 2074 [2023-12-19 01:43:33,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:43:33,421 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 1097 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:33,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1221 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 01:43:33,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2023-12-19 01:43:33,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 1958. [2023-12-19 01:43:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1958 states, 1551 states have (on average 1.359123146357189) internal successors, (2108), 1578 states have internal predecessors, (2108), 223 states have call successors, (223), 141 states have call predecessors, (223), 182 states have return successors, (287), 241 states have call predecessors, (287), 221 states have call successors, (287) [2023-12-19 01:43:33,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1958 states to 1958 states and 2618 transitions. [2023-12-19 01:43:33,502 INFO L78 Accepts]: Start accepts. Automaton has 1958 states and 2618 transitions. Word has length 80 [2023-12-19 01:43:33,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:33,502 INFO L495 AbstractCegarLoop]: Abstraction has 1958 states and 2618 transitions. [2023-12-19 01:43:33,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-12-19 01:43:33,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1958 states and 2618 transitions. [2023-12-19 01:43:33,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-19 01:43:33,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:33,503 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:43:33,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 01:43:33,503 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:33,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:33,504 INFO L85 PathProgramCache]: Analyzing trace with hash -332273522, now seen corresponding path program 1 times [2023-12-19 01:43:33,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:33,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135324184] [2023-12-19 01:43:33,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:33,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:33,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:33,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:33,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:43:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:33,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:33,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:33,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 01:43:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:33,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 01:43:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:33,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 01:43:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:33,599 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 01:43:33,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:33,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135324184] [2023-12-19 01:43:33,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135324184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:33,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:33,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 01:43:33,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910814796] [2023-12-19 01:43:33,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:33,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 01:43:33,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:33,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 01:43:33,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:43:33,601 INFO L87 Difference]: Start difference. First operand 1958 states and 2618 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 6 states have internal predecessors, (63), 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) [2023-12-19 01:43:34,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:34,985 INFO L93 Difference]: Finished difference Result 4559 states and 5995 transitions. [2023-12-19 01:43:34,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-19 01:43:34,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 6 states have internal predecessors, (63), 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 81 [2023-12-19 01:43:34,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:34,996 INFO L225 Difference]: With dead ends: 4559 [2023-12-19 01:43:34,996 INFO L226 Difference]: Without dead ends: 2694 [2023-12-19 01:43:35,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2023-12-19 01:43:35,002 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 2058 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2102 SdHoareTripleChecker+Valid, 2021 SdHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:35,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2102 Valid, 2021 Invalid, 2291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 01:43:35,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2023-12-19 01:43:35,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 2530. [2023-12-19 01:43:35,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 1967 states have (on average 1.3162175902389426) internal successors, (2589), 2002 states have internal predecessors, (2589), 301 states have call successors, (301), 189 states have call predecessors, (301), 260 states have return successors, (420), 341 states have call predecessors, (420), 299 states have call successors, (420) [2023-12-19 01:43:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 3310 transitions. [2023-12-19 01:43:35,117 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 3310 transitions. Word has length 81 [2023-12-19 01:43:35,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:35,117 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 3310 transitions. [2023-12-19 01:43:35,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 6 states have internal predecessors, (63), 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) [2023-12-19 01:43:35,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 3310 transitions. [2023-12-19 01:43:35,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 01:43:35,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:35,121 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:43:35,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 01:43:35,122 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:35,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:35,122 INFO L85 PathProgramCache]: Analyzing trace with hash -937555366, now seen corresponding path program 1 times [2023-12-19 01:43:35,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:35,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479575696] [2023-12-19 01:43:35,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:35,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:43:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 01:43:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 01:43:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 01:43:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 01:43:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 01:43:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 01:43:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:43:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 01:43:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 01:43:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 01:43:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-19 01:43:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,293 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-19 01:43:35,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:35,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479575696] [2023-12-19 01:43:35,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479575696] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:43:35,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928788320] [2023-12-19 01:43:35,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:35,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:43:35,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:43:35,296 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) [2023-12-19 01:43:35,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 01:43:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:35,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 01:43:35,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:43:35,556 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-19 01:43:35,557 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:43:35,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928788320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:35,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:43:35,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-12-19 01:43:35,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536834266] [2023-12-19 01:43:35,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:35,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:43:35,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:35,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:43:35,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:43:35,558 INFO L87 Difference]: Start difference. First operand 2530 states and 3310 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2023-12-19 01:43:35,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:35,751 INFO L93 Difference]: Finished difference Result 6497 states and 8267 transitions. [2023-12-19 01:43:35,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:43:35,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 145 [2023-12-19 01:43:35,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:35,766 INFO L225 Difference]: With dead ends: 6497 [2023-12-19 01:43:35,766 INFO L226 Difference]: Without dead ends: 4489 [2023-12-19 01:43:35,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:43:35,772 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 57 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:35,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1349 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 01:43:35,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4489 states. [2023-12-19 01:43:35,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4489 to 4446. [2023-12-19 01:43:35,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4446 states, 3416 states have (on average 1.276639344262295) internal successors, (4361), 3480 states have internal predecessors, (4361), 535 states have call successors, (535), 371 states have call predecessors, (535), 493 states have return successors, (727), 597 states have call predecessors, (727), 533 states have call successors, (727) [2023-12-19 01:43:36,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4446 states to 4446 states and 5623 transitions. [2023-12-19 01:43:36,001 INFO L78 Accepts]: Start accepts. Automaton has 4446 states and 5623 transitions. Word has length 145 [2023-12-19 01:43:36,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:36,003 INFO L495 AbstractCegarLoop]: Abstraction has 4446 states and 5623 transitions. [2023-12-19 01:43:36,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2023-12-19 01:43:36,004 INFO L276 IsEmpty]: Start isEmpty. Operand 4446 states and 5623 transitions. [2023-12-19 01:43:36,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-19 01:43:36,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:36,006 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 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] [2023-12-19 01:43:36,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 01:43:36,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 01:43:36,214 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:36,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:36,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1135408909, now seen corresponding path program 1 times [2023-12-19 01:43:36,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:36,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509006371] [2023-12-19 01:43:36,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:36,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:43:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 01:43:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 01:43:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 01:43:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 01:43:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 01:43:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 01:43:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 01:43:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:43:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-19 01:43:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 01:43:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:43:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 01:43:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-19 01:43:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,362 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-19 01:43:36,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:36,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509006371] [2023-12-19 01:43:36,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509006371] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:43:36,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446544626] [2023-12-19 01:43:36,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:36,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:43:36,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:43:36,364 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) [2023-12-19 01:43:36,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 01:43:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:36,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 01:43:36,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:43:36,647 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-19 01:43:36,647 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:43:36,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446544626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:36,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:43:36,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-12-19 01:43:36,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736513371] [2023-12-19 01:43:36,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:36,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:43:36,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:36,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:43:36,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:43:36,649 INFO L87 Difference]: Start difference. First operand 4446 states and 5623 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 01:43:37,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:37,025 INFO L93 Difference]: Finished difference Result 12578 states and 15625 transitions. [2023-12-19 01:43:37,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:43:37,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 175 [2023-12-19 01:43:37,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:37,051 INFO L225 Difference]: With dead ends: 12578 [2023-12-19 01:43:37,051 INFO L226 Difference]: Without dead ends: 8512 [2023-12-19 01:43:37,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:43:37,059 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 48 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:37,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 1348 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 01:43:37,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8512 states. [2023-12-19 01:43:37,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8512 to 8504. [2023-12-19 01:43:37,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 6487 states have (on average 1.2503468475412363) internal successors, (8111), 6611 states have internal predecessors, (8111), 1035 states have call successors, (1035), 735 states have call predecessors, (1035), 980 states have return successors, (1420), 1160 states have call predecessors, (1420), 1033 states have call successors, (1420) [2023-12-19 01:43:37,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 10566 transitions. [2023-12-19 01:43:37,467 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 10566 transitions. Word has length 175 [2023-12-19 01:43:37,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:37,468 INFO L495 AbstractCegarLoop]: Abstraction has 8504 states and 10566 transitions. [2023-12-19 01:43:37,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 01:43:37,468 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 10566 transitions. [2023-12-19 01:43:37,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-19 01:43:37,473 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:37,473 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 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] [2023-12-19 01:43:37,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 01:43:37,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 01:43:37,680 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:37,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:37,680 INFO L85 PathProgramCache]: Analyzing trace with hash 741042123, now seen corresponding path program 1 times [2023-12-19 01:43:37,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:37,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700499656] [2023-12-19 01:43:37,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:37,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:43:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:43:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 01:43:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 01:43:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 01:43:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 01:43:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 01:43:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 01:43:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 01:43:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:43:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-19 01:43:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 01:43:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:43:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:43:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 01:43:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-19 01:43:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,825 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-19 01:43:37,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:37,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700499656] [2023-12-19 01:43:37,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700499656] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:43:37,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096425053] [2023-12-19 01:43:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:37,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:43:37,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:43:37,826 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) [2023-12-19 01:43:37,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 01:43:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:37,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 01:43:37,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:43:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-12-19 01:43:38,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:43:38,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096425053] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:38,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:43:38,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-12-19 01:43:38,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027886278] [2023-12-19 01:43:38,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:38,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:43:38,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:38,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:43:38,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:43:38,105 INFO L87 Difference]: Start difference. First operand 8504 states and 10566 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 01:43:38,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:38,466 INFO L93 Difference]: Finished difference Result 14514 states and 18286 transitions. [2023-12-19 01:43:38,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:43:38,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 175 [2023-12-19 01:43:38,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:38,476 INFO L225 Difference]: With dead ends: 14514 [2023-12-19 01:43:38,476 INFO L226 Difference]: Without dead ends: 370 [2023-12-19 01:43:38,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:43:38,496 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 627 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:38,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 669 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 01:43:38,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-12-19 01:43:38,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2023-12-19 01:43:38,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 336 states have (on average 1.6369047619047619) internal successors, (550), 337 states have internal predecessors, (550), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-19 01:43:38,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 604 transitions. [2023-12-19 01:43:38,506 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 604 transitions. Word has length 175 [2023-12-19 01:43:38,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:38,506 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 604 transitions. [2023-12-19 01:43:38,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 01:43:38,507 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 604 transitions. [2023-12-19 01:43:38,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:43:38,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:38,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:43:38,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-19 01:43:38,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:43:38,717 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:38,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:38,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2062891178, now seen corresponding path program 1 times [2023-12-19 01:43:38,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:38,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707663262] [2023-12-19 01:43:38,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:38,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:38,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:38,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:43:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:38,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:43:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:38,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:43:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:38,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:43:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:38,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:43:38,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:38,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707663262] [2023-12-19 01:43:38,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707663262] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:38,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:38,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 01:43:38,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186229733] [2023-12-19 01:43:38,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:38,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 01:43:38,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:38,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 01:43:38,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:43:38,864 INFO L87 Difference]: Start difference. First operand 370 states and 604 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:43:40,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:40,313 INFO L93 Difference]: Finished difference Result 870 states and 1442 transitions. [2023-12-19 01:43:40,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 01:43:40,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-19 01:43:40,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:40,315 INFO L225 Difference]: With dead ends: 870 [2023-12-19 01:43:40,315 INFO L226 Difference]: Without dead ends: 510 [2023-12-19 01:43:40,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 01:43:40,316 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1043 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:40,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 663 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 01:43:40,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-19 01:43:40,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 370. [2023-12-19 01:43:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 336 states have (on average 1.6339285714285714) internal successors, (549), 337 states have internal predecessors, (549), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-19 01:43:40,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 603 transitions. [2023-12-19 01:43:40,327 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 603 transitions. Word has length 171 [2023-12-19 01:43:40,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:40,328 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 603 transitions. [2023-12-19 01:43:40,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:43:40,328 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 603 transitions. [2023-12-19 01:43:40,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:43:40,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:40,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:43:40,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 01:43:40,329 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:40,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:40,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1446078228, now seen corresponding path program 1 times [2023-12-19 01:43:40,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:40,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824668346] [2023-12-19 01:43:40,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:40,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:40,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:40,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:43:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:40,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:43:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:40,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:43:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:40,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:43:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:40,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:43:40,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:40,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824668346] [2023-12-19 01:43:40,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824668346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:40,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:40,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 01:43:40,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381789057] [2023-12-19 01:43:40,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:40,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 01:43:40,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:40,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 01:43:40,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:43:40,479 INFO L87 Difference]: Start difference. First operand 370 states and 603 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:43:41,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:41,977 INFO L93 Difference]: Finished difference Result 862 states and 1425 transitions. [2023-12-19 01:43:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 01:43:41,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-19 01:43:41,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:41,979 INFO L225 Difference]: With dead ends: 862 [2023-12-19 01:43:41,979 INFO L226 Difference]: Without dead ends: 510 [2023-12-19 01:43:41,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 01:43:41,981 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1034 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:41,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 661 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 01:43:41,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-19 01:43:41,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 370. [2023-12-19 01:43:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 336 states have (on average 1.630952380952381) internal successors, (548), 337 states have internal predecessors, (548), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-19 01:43:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 602 transitions. [2023-12-19 01:43:41,993 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 602 transitions. Word has length 171 [2023-12-19 01:43:41,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:41,993 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 602 transitions. [2023-12-19 01:43:41,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:43:41,994 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 602 transitions. [2023-12-19 01:43:41,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:43:41,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:41,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:43:41,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 01:43:41,995 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:41,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:41,995 INFO L85 PathProgramCache]: Analyzing trace with hash 954555182, now seen corresponding path program 1 times [2023-12-19 01:43:41,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:41,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173203486] [2023-12-19 01:43:41,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:41,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:42,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:43:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:42,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:43:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:43:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:42,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:43:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:42,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:43:42,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:42,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173203486] [2023-12-19 01:43:42,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173203486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:42,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:42,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 01:43:42,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030236375] [2023-12-19 01:43:42,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:42,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 01:43:42,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:42,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 01:43:42,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:43:42,185 INFO L87 Difference]: Start difference. First operand 370 states and 602 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 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) [2023-12-19 01:43:44,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:44,685 INFO L93 Difference]: Finished difference Result 1371 states and 2282 transitions. [2023-12-19 01:43:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 01:43:44,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 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 171 [2023-12-19 01:43:44,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:44,694 INFO L225 Difference]: With dead ends: 1371 [2023-12-19 01:43:44,695 INFO L226 Difference]: Without dead ends: 1021 [2023-12-19 01:43:44,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:43:44,698 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 1591 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 2513 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 2625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:44,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1611 Valid, 1284 Invalid, 2625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2513 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-19 01:43:44,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2023-12-19 01:43:44,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 742. [2023-12-19 01:43:44,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.642120765832106) internal successors, (1115), 681 states have internal predecessors, (1115), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2023-12-19 01:43:44,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1216 transitions. [2023-12-19 01:43:44,723 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1216 transitions. Word has length 171 [2023-12-19 01:43:44,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:44,724 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1216 transitions. [2023-12-19 01:43:44,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 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) [2023-12-19 01:43:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1216 transitions. [2023-12-19 01:43:44,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:43:44,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:44,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:43:44,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 01:43:44,725 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:44,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:44,726 INFO L85 PathProgramCache]: Analyzing trace with hash -2061063374, now seen corresponding path program 1 times [2023-12-19 01:43:44,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:44,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319662333] [2023-12-19 01:43:44,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:44,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:43:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:44,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:43:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:44,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:43:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:44,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:43:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:44,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:43:44,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:44,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319662333] [2023-12-19 01:43:44,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319662333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:44,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:44,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:43:44,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037079297] [2023-12-19 01:43:44,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:44,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:43:44,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:44,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:43:44,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:43:44,950 INFO L87 Difference]: Start difference. First operand 742 states and 1216 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:43:48,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:48,372 INFO L93 Difference]: Finished difference Result 2276 states and 3792 transitions. [2023-12-19 01:43:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:43:48,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2023-12-19 01:43:48,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:48,376 INFO L225 Difference]: With dead ends: 2276 [2023-12-19 01:43:48,376 INFO L226 Difference]: Without dead ends: 1554 [2023-12-19 01:43:48,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:43:48,377 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1737 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 3474 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 3571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 3474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:48,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 1480 Invalid, 3571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3474 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-19 01:43:48,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2023-12-19 01:43:48,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1085. [2023-12-19 01:43:48,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 993 states have (on average 1.635448136958711) internal successors, (1624), 996 states have internal predecessors, (1624), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-19 01:43:48,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1771 transitions. [2023-12-19 01:43:48,410 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1771 transitions. Word has length 171 [2023-12-19 01:43:48,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:48,410 INFO L495 AbstractCegarLoop]: Abstraction has 1085 states and 1771 transitions. [2023-12-19 01:43:48,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:43:48,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1771 transitions. [2023-12-19 01:43:48,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:43:48,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:48,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:43:48,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 01:43:48,411 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:48,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:48,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1969256432, now seen corresponding path program 1 times [2023-12-19 01:43:48,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:48,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882627607] [2023-12-19 01:43:48,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:48,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:48,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:43:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:48,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:43:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:48,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:43:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:48,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:43:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:48,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:43:48,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:48,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882627607] [2023-12-19 01:43:48,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882627607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:48,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:48,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:43:48,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744722721] [2023-12-19 01:43:48,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:48,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:43:48,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:48,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:43:48,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:43:48,601 INFO L87 Difference]: Start difference. First operand 1085 states and 1771 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:43:52,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:52,241 INFO L93 Difference]: Finished difference Result 3602 states and 5989 transitions. [2023-12-19 01:43:52,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:43:52,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2023-12-19 01:43:52,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:52,249 INFO L225 Difference]: With dead ends: 3602 [2023-12-19 01:43:52,249 INFO L226 Difference]: Without dead ends: 2537 [2023-12-19 01:43:52,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:43:52,252 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 1636 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 3977 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 4042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:52,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 2125 Invalid, 4042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3977 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-19 01:43:52,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2023-12-19 01:43:52,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 1772. [2023-12-19 01:43:52,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1622 states have (on average 1.6294697903822442) internal successors, (2643), 1627 states have internal predecessors, (2643), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-19 01:43:52,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2886 transitions. [2023-12-19 01:43:52,310 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2886 transitions. Word has length 171 [2023-12-19 01:43:52,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:52,310 INFO L495 AbstractCegarLoop]: Abstraction has 1772 states and 2886 transitions. [2023-12-19 01:43:52,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:43:52,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2886 transitions. [2023-12-19 01:43:52,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:43:52,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:52,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:43:52,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 01:43:52,312 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:52,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:52,312 INFO L85 PathProgramCache]: Analyzing trace with hash -394585230, now seen corresponding path program 1 times [2023-12-19 01:43:52,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:52,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091663517] [2023-12-19 01:43:52,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:52,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:52,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:52,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:43:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:52,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:43:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:52,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:43:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:52,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:43:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:52,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:43:52,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:52,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091663517] [2023-12-19 01:43:52,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091663517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:52,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:52,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:43:52,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666879754] [2023-12-19 01:43:52,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:52,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:43:52,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:52,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:43:52,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:43:52,518 INFO L87 Difference]: Start difference. First operand 1772 states and 2886 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:43:56,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:43:56,089 INFO L93 Difference]: Finished difference Result 6141 states and 10172 transitions. [2023-12-19 01:43:56,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:43:56,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2023-12-19 01:43:56,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:43:56,102 INFO L225 Difference]: With dead ends: 6141 [2023-12-19 01:43:56,102 INFO L226 Difference]: Without dead ends: 4389 [2023-12-19 01:43:56,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:43:56,129 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 1628 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 3974 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 4039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:43:56,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 2125 Invalid, 4039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3974 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-19 01:43:56,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4389 states. [2023-12-19 01:43:56,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4389 to 3147. [2023-12-19 01:43:56,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3147 states, 2881 states have (on average 1.6247830614370011) internal successors, (4681), 2890 states have internal predecessors, (4681), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2023-12-19 01:43:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3147 states to 3147 states and 5122 transitions. [2023-12-19 01:43:56,253 INFO L78 Accepts]: Start accepts. Automaton has 3147 states and 5122 transitions. Word has length 171 [2023-12-19 01:43:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:43:56,254 INFO L495 AbstractCegarLoop]: Abstraction has 3147 states and 5122 transitions. [2023-12-19 01:43:56,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:43:56,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3147 states and 5122 transitions. [2023-12-19 01:43:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:43:56,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:43:56,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:43:56,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 01:43:56,256 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:43:56,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:43:56,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1717764176, now seen corresponding path program 1 times [2023-12-19 01:43:56,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:43:56,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918499875] [2023-12-19 01:43:56,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:43:56,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:43:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:56,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:43:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:56,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:43:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:56,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:43:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:56,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:43:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:56,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:43:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:43:56,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:43:56,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:43:56,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918499875] [2023-12-19 01:43:56,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918499875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:43:56,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:43:56,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:43:56,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643210931] [2023-12-19 01:43:56,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:43:56,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:43:56,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:43:56,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:43:56,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:43:56,473 INFO L87 Difference]: Start difference. First operand 3147 states and 5122 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:44:00,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:44:00,061 INFO L93 Difference]: Finished difference Result 11218 states and 18554 transitions. [2023-12-19 01:44:00,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:44:00,062 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2023-12-19 01:44:00,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:44:00,086 INFO L225 Difference]: With dead ends: 11218 [2023-12-19 01:44:00,086 INFO L226 Difference]: Without dead ends: 8091 [2023-12-19 01:44:00,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:44:00,092 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 1630 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 3960 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1650 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 4025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:44:00,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1650 Valid, 2125 Invalid, 4025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3960 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-19 01:44:00,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8091 states. [2023-12-19 01:44:00,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8091 to 5902. [2023-12-19 01:44:00,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5902 states, 5404 states have (on average 1.6215766099185789) internal successors, (8763), 5421 states have internal predecessors, (8763), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-19 01:44:00,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 9618 transitions. [2023-12-19 01:44:00,313 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 9618 transitions. Word has length 171 [2023-12-19 01:44:00,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:44:00,313 INFO L495 AbstractCegarLoop]: Abstraction has 5902 states and 9618 transitions. [2023-12-19 01:44:00,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:44:00,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 9618 transitions. [2023-12-19 01:44:00,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:44:00,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:44:00,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:44:00,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 01:44:00,317 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:44:00,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:44:00,318 INFO L85 PathProgramCache]: Analyzing trace with hash 179215282, now seen corresponding path program 1 times [2023-12-19 01:44:00,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:44:00,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512257995] [2023-12-19 01:44:00,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:44:00,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:44:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:00,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:44:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:00,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:44:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:00,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:44:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:44:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:00,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:44:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:00,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:44:00,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:44:00,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512257995] [2023-12-19 01:44:00,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512257995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:44:00,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:44:00,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:44:00,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922710765] [2023-12-19 01:44:00,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:44:00,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:44:00,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:44:00,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:44:00,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:44:00,557 INFO L87 Difference]: Start difference. First operand 5902 states and 9618 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:44:04,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:44:04,267 INFO L93 Difference]: Finished difference Result 21356 states and 35348 transitions. [2023-12-19 01:44:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:44:04,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2023-12-19 01:44:04,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:44:04,322 INFO L225 Difference]: With dead ends: 21356 [2023-12-19 01:44:04,323 INFO L226 Difference]: Without dead ends: 15474 [2023-12-19 01:44:04,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:44:04,384 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 1626 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 3932 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 3997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:44:04,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1646 Valid, 2125 Invalid, 3997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3932 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-19 01:44:04,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15474 states. [2023-12-19 01:44:04,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15474 to 11442. [2023-12-19 01:44:04,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11442 states, 10480 states have (on average 1.6201335877862595) internal successors, (16979), 10513 states have internal predecessors, (16979), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2023-12-19 01:44:04,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11442 states to 11442 states and 18716 transitions. [2023-12-19 01:44:04,838 INFO L78 Accepts]: Start accepts. Automaton has 11442 states and 18716 transitions. Word has length 171 [2023-12-19 01:44:04,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:44:04,838 INFO L495 AbstractCegarLoop]: Abstraction has 11442 states and 18716 transitions. [2023-12-19 01:44:04,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:44:04,839 INFO L276 IsEmpty]: Start isEmpty. Operand 11442 states and 18716 transitions. [2023-12-19 01:44:04,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:44:04,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:44:04,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:44:04,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 01:44:04,850 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:44:04,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:44:04,850 INFO L85 PathProgramCache]: Analyzing trace with hash 605769780, now seen corresponding path program 1 times [2023-12-19 01:44:04,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:44:04,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760960579] [2023-12-19 01:44:04,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:44:04,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:44:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:04,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:44:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:05,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:44:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:05,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:44:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:05,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:44:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:05,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:44:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:05,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:44:05,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:44:05,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760960579] [2023-12-19 01:44:05,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760960579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:44:05,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:44:05,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:44:05,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260922989] [2023-12-19 01:44:05,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:44:05,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:44:05,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:44:05,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:44:05,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:44:05,125 INFO L87 Difference]: Start difference. First operand 11442 states and 18716 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:44:09,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:44:09,262 INFO L93 Difference]: Finished difference Result 41666 states and 69192 transitions. [2023-12-19 01:44:09,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:44:09,262 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2023-12-19 01:44:09,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:44:09,364 INFO L225 Difference]: With dead ends: 41666 [2023-12-19 01:44:09,365 INFO L226 Difference]: Without dead ends: 30244 [2023-12-19 01:44:09,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:44:09,398 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 1625 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 3919 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 3984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:44:09,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 2125 Invalid, 3984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3919 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-19 01:44:09,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30244 states. [2023-12-19 01:44:10,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30244 to 22551. [2023-12-19 01:44:10,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22551 states, 20661 states have (on average 1.6191375054450414) internal successors, (33453), 20726 states have internal predecessors, (33453), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2023-12-19 01:44:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22551 states to 22551 states and 37116 transitions. [2023-12-19 01:44:10,509 INFO L78 Accepts]: Start accepts. Automaton has 22551 states and 37116 transitions. Word has length 171 [2023-12-19 01:44:10,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:44:10,510 INFO L495 AbstractCegarLoop]: Abstraction has 22551 states and 37116 transitions. [2023-12-19 01:44:10,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:44:10,510 INFO L276 IsEmpty]: Start isEmpty. Operand 22551 states and 37116 transitions. [2023-12-19 01:44:10,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:44:10,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:44:10,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:44:10,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 01:44:10,520 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:44:10,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:44:10,521 INFO L85 PathProgramCache]: Analyzing trace with hash 65340274, now seen corresponding path program 1 times [2023-12-19 01:44:10,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:44:10,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365086279] [2023-12-19 01:44:10,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:44:10,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:44:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:10,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:44:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:10,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:44:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:10,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:44:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:10,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:44:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:44:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:44:10,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:44:10,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365086279] [2023-12-19 01:44:10,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365086279] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:44:10,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:44:10,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:44:10,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565054557] [2023-12-19 01:44:10,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:44:10,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:44:10,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:44:10,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:44:10,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:44:10,691 INFO L87 Difference]: Start difference. First operand 22551 states and 37116 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:44:15,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:44:15,742 INFO L93 Difference]: Finished difference Result 82285 states and 137478 transitions. [2023-12-19 01:44:15,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:44:15,745 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2023-12-19 01:44:15,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:44:15,937 INFO L225 Difference]: With dead ends: 82285 [2023-12-19 01:44:15,937 INFO L226 Difference]: Without dead ends: 59754 [2023-12-19 01:44:15,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:44:15,984 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 1624 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 3906 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1644 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 3971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:44:15,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1644 Valid, 2125 Invalid, 3971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3906 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-19 01:44:16,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59754 states. [2023-12-19 01:44:17,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59754 to 44832. [2023-12-19 01:44:17,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44832 states, 41086 states have (on average 1.6184345032371124) internal successors, (66495), 41215 states have internal predecessors, (66495), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2023-12-19 01:44:17,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44832 states to 44832 states and 74496 transitions. [2023-12-19 01:44:17,922 INFO L78 Accepts]: Start accepts. Automaton has 44832 states and 74496 transitions. Word has length 171 [2023-12-19 01:44:17,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:44:17,922 INFO L495 AbstractCegarLoop]: Abstraction has 44832 states and 74496 transitions. [2023-12-19 01:44:17,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:44:17,922 INFO L276 IsEmpty]: Start isEmpty. Operand 44832 states and 74496 transitions. [2023-12-19 01:44:17,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:44:17,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:44:17,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:44:17,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 01:44:17,945 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:44:17,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:44:17,946 INFO L85 PathProgramCache]: Analyzing trace with hash -90640268, now seen corresponding path program 1 times [2023-12-19 01:44:17,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:44:17,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479767026] [2023-12-19 01:44:17,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:44:17,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:44:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:18,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:44:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:18,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:44:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:18,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:44:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:18,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:44:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:18,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:44:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:18,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:44:18,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:44:18,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479767026] [2023-12-19 01:44:18,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479767026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:44:18,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:44:18,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:44:18,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570173652] [2023-12-19 01:44:18,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:44:18,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:44:18,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:44:18,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:44:18,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:44:18,127 INFO L87 Difference]: Start difference. First operand 44832 states and 74496 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:44:24,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:44:24,780 INFO L93 Difference]: Finished difference Result 163524 states and 275900 transitions. [2023-12-19 01:44:24,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:44:24,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2023-12-19 01:44:24,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:44:25,194 INFO L225 Difference]: With dead ends: 163524 [2023-12-19 01:44:25,194 INFO L226 Difference]: Without dead ends: 118712 [2023-12-19 01:44:25,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:44:25,290 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 1738 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 3244 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:44:25,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1758 Valid, 1382 Invalid, 3347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3244 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 01:44:25,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118712 states. [2023-12-19 01:44:29,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118712 to 89521. [2023-12-19 01:44:29,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89521 states, 82063 states have (on average 1.6178911324226508) internal successors, (132769), 82320 states have internal predecessors, (132769), 5659 states have call successors, (5659), 1542 states have call predecessors, (5659), 1798 states have return successors, (12476), 5914 states have call predecessors, (12476), 5659 states have call successors, (12476) [2023-12-19 01:44:29,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89521 states to 89521 states and 150904 transitions. [2023-12-19 01:44:29,797 INFO L78 Accepts]: Start accepts. Automaton has 89521 states and 150904 transitions. Word has length 171 [2023-12-19 01:44:29,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:44:29,798 INFO L495 AbstractCegarLoop]: Abstraction has 89521 states and 150904 transitions. [2023-12-19 01:44:29,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:44:29,798 INFO L276 IsEmpty]: Start isEmpty. Operand 89521 states and 150904 transitions. [2023-12-19 01:44:29,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:44:29,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:44:29,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:44:29,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-19 01:44:29,842 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:44:29,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:44:29,842 INFO L85 PathProgramCache]: Analyzing trace with hash 319970098, now seen corresponding path program 1 times [2023-12-19 01:44:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:44:29,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731378894] [2023-12-19 01:44:29,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:44:29,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:44:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:30,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:44:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:30,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:44:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:30,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:44:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:30,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:44:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:44:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:30,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:44:30,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:44:30,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731378894] [2023-12-19 01:44:30,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731378894] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:44:30,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:44:30,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:44:30,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736746484] [2023-12-19 01:44:30,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:44:30,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:44:30,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:44:30,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:44:30,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:44:30,160 INFO L87 Difference]: Start difference. First operand 89521 states and 150904 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:44:40,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:44:40,377 INFO L93 Difference]: Finished difference Result 326003 states and 558386 transitions. [2023-12-19 01:44:40,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:44:40,377 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2023-12-19 01:44:40,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:44:41,595 INFO L225 Difference]: With dead ends: 326003 [2023-12-19 01:44:41,596 INFO L226 Difference]: Without dead ends: 236502 [2023-12-19 01:44:41,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:44:41,915 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 1622 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 3880 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 3945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:44:41,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1642 Valid, 2125 Invalid, 3945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3880 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-19 01:44:42,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236502 states. [2023-12-19 01:44:50,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236502 to 179154. [2023-12-19 01:44:50,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179154 states, 164272 states have (on average 1.6174332813869678) internal successors, (265699), 164785 states have internal predecessors, (265699), 11291 states have call successors, (11291), 3078 states have call predecessors, (11291), 3590 states have return successors, (31486), 11802 states have call predecessors, (31486), 11291 states have call successors, (31486) [2023-12-19 01:44:51,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179154 states to 179154 states and 308476 transitions. [2023-12-19 01:44:51,564 INFO L78 Accepts]: Start accepts. Automaton has 179154 states and 308476 transitions. Word has length 171 [2023-12-19 01:44:51,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:44:51,565 INFO L495 AbstractCegarLoop]: Abstraction has 179154 states and 308476 transitions. [2023-12-19 01:44:51,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:44:51,565 INFO L276 IsEmpty]: Start isEmpty. Operand 179154 states and 308476 transitions. [2023-12-19 01:44:51,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:44:51,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:44:51,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:44:51,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-19 01:44:51,650 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:44:51,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:44:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1467899724, now seen corresponding path program 1 times [2023-12-19 01:44:51,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:44:51,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022963216] [2023-12-19 01:44:51,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:44:51,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:44:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:51,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:44:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:51,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:44:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:51,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:44:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:51,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:44:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:51,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:44:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:44:51,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:44:51,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:44:51,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022963216] [2023-12-19 01:44:51,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022963216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:44:51,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:44:51,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:44:51,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938404619] [2023-12-19 01:44:51,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:44:51,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:44:51,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:44:51,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:44:51,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:44:51,859 INFO L87 Difference]: Start difference. First operand 179154 states and 308476 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:45:08,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:08,967 INFO L93 Difference]: Finished difference Result 650962 states and 1140472 transitions. [2023-12-19 01:45:08,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:45:08,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2023-12-19 01:45:08,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:11,694 INFO L225 Difference]: With dead ends: 650962 [2023-12-19 01:45:11,694 INFO L226 Difference]: Without dead ends: 471828 [2023-12-19 01:45:12,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:45:12,404 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 1621 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 3867 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 3932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:12,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 2125 Invalid, 3932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3867 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-19 01:45:12,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471828 states. [2023-12-19 01:45:30,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471828 to 358931. [2023-12-19 01:45:31,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358931 states, 329201 states have (on average 1.6170212119647267) internal successors, (532325), 330226 states have internal predecessors, (532325), 22555 states have call successors, (22555), 6150 states have call predecessors, (22555), 7174 states have return successors, (82628), 23578 states have call predecessors, (82628), 22555 states have call successors, (82628) [2023-12-19 01:45:33,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358931 states to 358931 states and 637508 transitions. [2023-12-19 01:45:33,616 INFO L78 Accepts]: Start accepts. Automaton has 358931 states and 637508 transitions. Word has length 171 [2023-12-19 01:45:33,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:33,617 INFO L495 AbstractCegarLoop]: Abstraction has 358931 states and 637508 transitions. [2023-12-19 01:45:33,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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) [2023-12-19 01:45:33,617 INFO L276 IsEmpty]: Start isEmpty. Operand 358931 states and 637508 transitions. [2023-12-19 01:45:33,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-19 01:45:33,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:33,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:45:33,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-19 01:45:33,781 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:33,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:33,782 INFO L85 PathProgramCache]: Analyzing trace with hash 691184370, now seen corresponding path program 1 times [2023-12-19 01:45:33,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:33,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282078943] [2023-12-19 01:45:33,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:33,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:33,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:45:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:33,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:45:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:34,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:45:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:34,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 01:45:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:34,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 01:45:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:34,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:34,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282078943] [2023-12-19 01:45:34,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282078943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:34,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:34,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:45:34,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133209972] [2023-12-19 01:45:34,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:34,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:45:34,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:34,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:45:34,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:45:34,242 INFO L87 Difference]: Start difference. First operand 358931 states and 637508 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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)