/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:10:53,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:10:53,905 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 01:10:53,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:10:53,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:10:53,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:10:53,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:10:53,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:10:53,924 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:10:53,924 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:10:53,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:10:53,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:10:53,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:10:53,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:10:53,925 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:10:53,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:10:53,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:10:53,926 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:10:53,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:10:53,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:10:53,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:10:53,927 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:10:53,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:10:53,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:10:53,928 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:10:53,928 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:10:53,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:10:53,928 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:10:53,929 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:10:53,929 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:10:53,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:10:53,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:10:53,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:10:53,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:10:53,930 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:10:53,930 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:10:53,930 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:10:53,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:10:53,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:10:53,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:10:53,930 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:10:53,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:10:53,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:10:53,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:10:54,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:10:54,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:10:54,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:10:54,103 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:10:54,105 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:10:54,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c [2023-12-16 01:10:55,392 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:10:55,613 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:10:55,613 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c [2023-12-16 01:10:55,631 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1482a2a11/d13a376b593a45668eea48abb4fe5a01/FLAGe2710c8a3 [2023-12-16 01:10:55,643 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1482a2a11/d13a376b593a45668eea48abb4fe5a01 [2023-12-16 01:10:55,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:10:55,646 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:10:55,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:10:55,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:10:55,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:10:55,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:10:55" (1/1) ... [2023-12-16 01:10:55,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dfc322d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:55, skipping insertion in model container [2023-12-16 01:10:55,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:10:55" (1/1) ... [2023-12-16 01:10:55,708 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:10:55,817 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.07.cil-2.c[911,924] [2023-12-16 01:10:55,870 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.07.cil-2.c[8416,8429] [2023-12-16 01:10:55,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:10:55,922 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:10:55,931 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.07.cil-2.c[911,924] [2023-12-16 01:10:55,952 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.07.cil-2.c[8416,8429] [2023-12-16 01:10:55,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:10:56,001 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:10:56,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56 WrapperNode [2023-12-16 01:10:56,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:10:56,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:10:56,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:10:56,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:10:56,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (1/1) ... [2023-12-16 01:10:56,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (1/1) ... [2023-12-16 01:10:56,056 INFO L138 Inliner]: procedures = 69, calls = 83, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 812 [2023-12-16 01:10:56,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:10:56,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:10:56,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:10:56,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:10:56,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (1/1) ... [2023-12-16 01:10:56,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (1/1) ... [2023-12-16 01:10:56,069 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (1/1) ... [2023-12-16 01:10:56,094 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]. [2023-12-16 01:10:56,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (1/1) ... [2023-12-16 01:10:56,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (1/1) ... [2023-12-16 01:10:56,104 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (1/1) ... [2023-12-16 01:10:56,111 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (1/1) ... [2023-12-16 01:10:56,113 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (1/1) ... [2023-12-16 01:10:56,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (1/1) ... [2023-12-16 01:10:56,118 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:10:56,119 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:10:56,119 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:10:56,119 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:10:56,120 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (1/1) ... [2023-12-16 01:10:56,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:10:56,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:10:56,186 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) [2023-12-16 01:10:56,227 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 [2023-12-16 01:10:56,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:10:56,244 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 01:10:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 01:10:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 01:10:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 01:10:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 01:10:56,246 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 01:10:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 01:10:56,246 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 01:10:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 01:10:56,246 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 01:10:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 01:10:56,247 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 01:10:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 01:10:56,247 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 01:10:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 01:10:56,247 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 01:10:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 01:10:56,247 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 01:10:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 01:10:56,248 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 01:10:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 01:10:56,248 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 01:10:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:10:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 01:10:56,249 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 01:10:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 01:10:56,250 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 01:10:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:10:56,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:10:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 01:10:56,250 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 01:10:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2023-12-16 01:10:56,250 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2023-12-16 01:10:56,367 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:10:56,369 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:10:57,050 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2023-12-16 01:10:57,050 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; [2023-12-16 01:10:57,135 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:10:57,196 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:10:57,196 INFO L309 CfgBuilder]: Removed 14 assume(true) statements. [2023-12-16 01:10:57,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:10:57 BoogieIcfgContainer [2023-12-16 01:10:57,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:10:57,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:10:57,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:10:57,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:10:57,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:10:55" (1/3) ... [2023-12-16 01:10:57,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ae98f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:10:57, skipping insertion in model container [2023-12-16 01:10:57,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:10:56" (2/3) ... [2023-12-16 01:10:57,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ae98f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:10:57, skipping insertion in model container [2023-12-16 01:10:57,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:10:57" (3/3) ... [2023-12-16 01:10:57,204 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.07.cil-2.c [2023-12-16 01:10:57,216 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:10:57,217 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 01:10:57,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:10:57,277 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;@3658183f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:10:57,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 01:10:57,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 345 states, 288 states have (on average 1.6979166666666667) internal successors, (489), 296 states have internal predecessors, (489), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-16 01:10:57,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 01:10:57,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:57,295 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] [2023-12-16 01:10:57,295 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:57,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:57,307 INFO L85 PathProgramCache]: Analyzing trace with hash -757185145, now seen corresponding path program 1 times [2023-12-16 01:10:57,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:57,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905254107] [2023-12-16 01:10:57,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:57,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:57,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:57,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:10:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:57,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:10:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:57,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:57,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:57,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:10:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:57,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:10:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:57,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:57,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:57,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905254107] [2023-12-16 01:10:57,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905254107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:57,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:57,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:10:57,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756190576] [2023-12-16 01:10:57,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:57,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:10:57,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:57,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:10:57,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:10:57,580 INFO L87 Difference]: Start difference. First operand has 345 states, 288 states have (on average 1.6979166666666667) internal successors, (489), 296 states have internal predecessors, (489), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2023-12-16 01:10:58,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:58,281 INFO L93 Difference]: Finished difference Result 687 states and 1127 transitions. [2023-12-16 01:10:58,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 01:10:58,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 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 57 [2023-12-16 01:10:58,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:58,292 INFO L225 Difference]: With dead ends: 687 [2023-12-16 01:10:58,293 INFO L226 Difference]: Without dead ends: 356 [2023-12-16 01:10:58,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:10:58,299 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 554 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:58,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1098 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:10:58,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-12-16 01:10:58,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 339. [2023-12-16 01:10:58,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 285 states have (on average 1.5894736842105264) internal successors, (453), 290 states have internal predecessors, (453), 39 states have call successors, (39), 15 states have call predecessors, (39), 13 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 01:10:58,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 527 transitions. [2023-12-16 01:10:58,344 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 527 transitions. Word has length 57 [2023-12-16 01:10:58,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:58,344 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 527 transitions. [2023-12-16 01:10:58,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2023-12-16 01:10:58,344 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 527 transitions. [2023-12-16 01:10:58,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 01:10:58,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:58,346 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] [2023-12-16 01:10:58,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:10:58,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:58,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:58,347 INFO L85 PathProgramCache]: Analyzing trace with hash -741666427, now seen corresponding path program 1 times [2023-12-16 01:10:58,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:58,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284217985] [2023-12-16 01:10:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:58,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:58,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:58,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:10:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:58,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:10:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:58,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:58,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:58,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:10:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:58,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:10:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:58,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:58,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:58,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284217985] [2023-12-16 01:10:58,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284217985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:58,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:58,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:10:58,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838104971] [2023-12-16 01:10:58,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:58,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:10:58,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:58,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:10:58,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:10:58,505 INFO L87 Difference]: Start difference. First operand 339 states and 527 transitions. 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) [2023-12-16 01:10:59,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:59,518 INFO L93 Difference]: Finished difference Result 571 states and 873 transitions. [2023-12-16 01:10:59,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:10:59,519 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 [2023-12-16 01:10:59,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:59,524 INFO L225 Difference]: With dead ends: 571 [2023-12-16 01:10:59,524 INFO L226 Difference]: Without dead ends: 477 [2023-12-16 01:10:59,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:10:59,527 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 1172 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:59,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 1157 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:10:59,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2023-12-16 01:10:59,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 440. [2023-12-16 01:10:59,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 364 states have (on average 1.5604395604395604) internal successors, (568), 371 states have internal predecessors, (568), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (53), 49 states have call predecessors, (53), 48 states have call successors, (53) [2023-12-16 01:10:59,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 673 transitions. [2023-12-16 01:10:59,589 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 673 transitions. Word has length 57 [2023-12-16 01:10:59,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:59,589 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 673 transitions. [2023-12-16 01:10:59,589 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) [2023-12-16 01:10:59,589 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 673 transitions. [2023-12-16 01:10:59,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 01:10:59,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:59,593 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] [2023-12-16 01:10:59,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:10:59,594 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:59,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:59,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1609308101, now seen corresponding path program 1 times [2023-12-16 01:10:59,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:59,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520277969] [2023-12-16 01:10:59,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:59,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:59,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:59,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:10:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:59,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:10:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:59,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:59,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:59,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:10:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:59,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:10:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:59,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:59,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520277969] [2023-12-16 01:10:59,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520277969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:59,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:59,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:10:59,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580019696] [2023-12-16 01:10:59,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:59,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:10:59,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:59,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:10:59,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:10:59,847 INFO L87 Difference]: Start difference. First operand 440 states and 673 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 6 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) [2023-12-16 01:11:01,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:01,237 INFO L93 Difference]: Finished difference Result 801 states and 1202 transitions. [2023-12-16 01:11:01,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 01:11:01,237 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 6 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 [2023-12-16 01:11:01,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:01,251 INFO L225 Difference]: With dead ends: 801 [2023-12-16 01:11:01,251 INFO L226 Difference]: Without dead ends: 613 [2023-12-16 01:11:01,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-12-16 01:11:01,253 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1297 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:01,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 1266 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 01:11:01,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-12-16 01:11:01,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 541. [2023-12-16 01:11:01,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 443 states have (on average 1.5395033860045146) internal successors, (682), 452 states have internal predecessors, (682), 65 states have call successors, (65), 29 states have call predecessors, (65), 31 states have return successors, (74), 63 states have call predecessors, (74), 61 states have call successors, (74) [2023-12-16 01:11:01,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 821 transitions. [2023-12-16 01:11:01,304 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 821 transitions. Word has length 57 [2023-12-16 01:11:01,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:01,304 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 821 transitions. [2023-12-16 01:11:01,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 6 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) [2023-12-16 01:11:01,304 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 821 transitions. [2023-12-16 01:11:01,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 01:11:01,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:01,306 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] [2023-12-16 01:11:01,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:11:01,306 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:01,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:01,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1792172857, now seen corresponding path program 1 times [2023-12-16 01:11:01,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:01,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284526021] [2023-12-16 01:11:01,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:01,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:01,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:01,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:11:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:01,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:01,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:11:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:01,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:11:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:01,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:11:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:01,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:11:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:01,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:01,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284526021] [2023-12-16 01:11:01,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284526021] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:01,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:01,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:11:01,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041052385] [2023-12-16 01:11:01,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:01,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:11:01,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:01,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:11:01,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:11:01,456 INFO L87 Difference]: Start difference. First operand 541 states and 821 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-16 01:11:02,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:02,367 INFO L93 Difference]: Finished difference Result 1147 states and 1697 transitions. [2023-12-16 01:11:02,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 01:11:02,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 57 [2023-12-16 01:11:02,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:02,379 INFO L225 Difference]: With dead ends: 1147 [2023-12-16 01:11:02,379 INFO L226 Difference]: Without dead ends: 864 [2023-12-16 01:11:02,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-12-16 01:11:02,388 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1386 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:02,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 1053 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:11:02,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2023-12-16 01:11:02,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 793. [2023-12-16 01:11:02,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 640 states have (on average 1.5) internal successors, (960), 653 states have internal predecessors, (960), 95 states have call successors, (95), 50 states have call predecessors, (95), 56 states have return successors, (112), 93 states have call predecessors, (112), 91 states have call successors, (112) [2023-12-16 01:11:02,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1167 transitions. [2023-12-16 01:11:02,446 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1167 transitions. Word has length 57 [2023-12-16 01:11:02,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:02,447 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 1167 transitions. [2023-12-16 01:11:02,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-16 01:11:02,447 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1167 transitions. [2023-12-16 01:11:02,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:11:02,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:02,450 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] [2023-12-16 01:11:02,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:11:02,450 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:02,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:02,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1940219858, now seen corresponding path program 1 times [2023-12-16 01:11:02,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:02,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633356021] [2023-12-16 01:11:02,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:02,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:02,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:02,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:11:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:02,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:02,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:11:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:02,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:11:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:02,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 01:11:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:02,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 01:11:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:02,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:02,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633356021] [2023-12-16 01:11:02,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633356021] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:02,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:02,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:11:02,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833688971] [2023-12-16 01:11:02,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:02,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:11:02,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:02,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:11:02,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:11:02,662 INFO L87 Difference]: Start difference. First operand 793 states and 1167 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) [2023-12-16 01:11:03,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:03,665 INFO L93 Difference]: Finished difference Result 1440 states and 2103 transitions. [2023-12-16 01:11:03,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 01:11:03,666 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 [2023-12-16 01:11:03,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:03,670 INFO L225 Difference]: With dead ends: 1440 [2023-12-16 01:11:03,671 INFO L226 Difference]: Without dead ends: 905 [2023-12-16 01:11:03,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:11:03,672 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 446 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:03,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1901 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:11:03,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2023-12-16 01:11:03,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 817. [2023-12-16 01:11:03,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 658 states have (on average 1.486322188449848) internal successors, (978), 671 states have internal predecessors, (978), 95 states have call successors, (95), 50 states have call predecessors, (95), 62 states have return successors, (118), 99 states have call predecessors, (118), 91 states have call successors, (118) [2023-12-16 01:11:03,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1191 transitions. [2023-12-16 01:11:03,714 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1191 transitions. Word has length 58 [2023-12-16 01:11:03,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:03,715 INFO L495 AbstractCegarLoop]: Abstraction has 817 states and 1191 transitions. [2023-12-16 01:11:03,715 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) [2023-12-16 01:11:03,715 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1191 transitions. [2023-12-16 01:11:03,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:11:03,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:03,716 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] [2023-12-16 01:11:03,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:11:03,716 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:03,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:03,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2080768468, now seen corresponding path program 1 times [2023-12-16 01:11:03,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:03,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940784874] [2023-12-16 01:11:03,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:03,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:03,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:03,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:11:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:03,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:03,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:11:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:03,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:11:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:03,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 01:11:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:03,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 01:11:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:03,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:03,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:03,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940784874] [2023-12-16 01:11:03,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940784874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:03,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:03,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:11:03,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118435037] [2023-12-16 01:11:03,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:03,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:11:03,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:03,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:11:03,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:11:03,875 INFO L87 Difference]: Start difference. First operand 817 states and 1191 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) [2023-12-16 01:11:04,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:04,902 INFO L93 Difference]: Finished difference Result 1455 states and 2094 transitions. [2023-12-16 01:11:04,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 01:11:04,903 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 [2023-12-16 01:11:04,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:04,906 INFO L225 Difference]: With dead ends: 1455 [2023-12-16 01:11:04,906 INFO L226 Difference]: Without dead ends: 896 [2023-12-16 01:11:04,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:11:04,909 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 661 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:04,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1688 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:11:04,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-12-16 01:11:04,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 829. [2023-12-16 01:11:04,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 667 states have (on average 1.4752623688155921) internal successors, (984), 680 states have internal predecessors, (984), 95 states have call successors, (95), 50 states have call predecessors, (95), 65 states have return successors, (121), 102 states have call predecessors, (121), 91 states have call successors, (121) [2023-12-16 01:11:04,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1200 transitions. [2023-12-16 01:11:04,944 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1200 transitions. Word has length 58 [2023-12-16 01:11:04,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:04,944 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1200 transitions. [2023-12-16 01:11:04,944 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) [2023-12-16 01:11:04,944 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1200 transitions. [2023-12-16 01:11:04,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:11:04,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:04,946 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] [2023-12-16 01:11:04,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:11:04,949 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:04,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:04,949 INFO L85 PathProgramCache]: Analyzing trace with hash 2141812270, now seen corresponding path program 1 times [2023-12-16 01:11:04,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:04,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071829300] [2023-12-16 01:11:04,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:04,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:05,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:05,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:11:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:05,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:05,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:11:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:05,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:11:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 01:11:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:05,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 01:11:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:05,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:05,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071829300] [2023-12-16 01:11:05,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071829300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:05,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:05,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:11:05,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650726545] [2023-12-16 01:11:05,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:05,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:11:05,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:05,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:11:05,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:11:05,116 INFO L87 Difference]: Start difference. First operand 829 states and 1200 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-16 01:11:06,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:06,762 INFO L93 Difference]: Finished difference Result 2934 states and 4262 transitions. [2023-12-16 01:11:06,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-16 01:11:06,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 58 [2023-12-16 01:11:06,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:06,767 INFO L225 Difference]: With dead ends: 2934 [2023-12-16 01:11:06,767 INFO L226 Difference]: Without dead ends: 1182 [2023-12-16 01:11:06,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2023-12-16 01:11:06,771 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 1854 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 2596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:06,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 1974 Invalid, 2596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 2228 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 01:11:06,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2023-12-16 01:11:06,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1044. [2023-12-16 01:11:06,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 823 states have (on average 1.4240583232077764) internal successors, (1172), 840 states have internal predecessors, (1172), 125 states have call successors, (125), 71 states have call predecessors, (125), 94 states have return successors, (173), 136 states have call predecessors, (173), 121 states have call successors, (173) [2023-12-16 01:11:06,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1470 transitions. [2023-12-16 01:11:06,811 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1470 transitions. Word has length 58 [2023-12-16 01:11:06,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:06,811 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 1470 transitions. [2023-12-16 01:11:06,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-16 01:11:06,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1470 transitions. [2023-12-16 01:11:06,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 01:11:06,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:06,812 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] [2023-12-16 01:11:06,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 01:11:06,813 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:06,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:06,813 INFO L85 PathProgramCache]: Analyzing trace with hash -292571228, now seen corresponding path program 1 times [2023-12-16 01:11:06,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:06,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566435017] [2023-12-16 01:11:06,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:06,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:06,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:06,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:11:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:06,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:06,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:11:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:06,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:11:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:06,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 01:11:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:06,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 01:11:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:06,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:06,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566435017] [2023-12-16 01:11:06,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566435017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:06,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:06,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:11:06,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347435911] [2023-12-16 01:11:06,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:06,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:11:06,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:06,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:11:06,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:11:06,904 INFO L87 Difference]: Start difference. First operand 1044 states and 1470 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-16 01:11:07,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:07,887 INFO L93 Difference]: Finished difference Result 2136 states and 3019 transitions. [2023-12-16 01:11:07,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 01:11:07,888 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 59 [2023-12-16 01:11:07,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:07,890 INFO L225 Difference]: With dead ends: 2136 [2023-12-16 01:11:07,890 INFO L226 Difference]: Without dead ends: 239 [2023-12-16 01:11:07,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-12-16 01:11:07,895 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1094 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:07,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 1364 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:11:07,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-12-16 01:11:07,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2023-12-16 01:11:07,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 209 states have (on average 1.6172248803827751) internal successors, (338), 211 states have internal predecessors, (338), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 01:11:07,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 382 transitions. [2023-12-16 01:11:07,905 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 382 transitions. Word has length 59 [2023-12-16 01:11:07,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:07,905 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 382 transitions. [2023-12-16 01:11:07,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-16 01:11:07,905 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 382 transitions. [2023-12-16 01:11:07,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 01:11:07,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:07,909 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] [2023-12-16 01:11:07,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 01:11:07,909 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:07,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:07,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1618565886, now seen corresponding path program 1 times [2023-12-16 01:11:07,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:07,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703530896] [2023-12-16 01:11:07,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:07,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:07,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:07,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:08,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:11:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:08,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:11:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:08,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:11:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:08,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:08,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:08,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703530896] [2023-12-16 01:11:08,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703530896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:08,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:08,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:11:08,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084938063] [2023-12-16 01:11:08,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:08,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:11:08,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:08,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:11:08,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:11:08,048 INFO L87 Difference]: Start difference. First operand 239 states and 382 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:09,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:09,245 INFO L93 Difference]: Finished difference Result 589 states and 968 transitions. [2023-12-16 01:11:09,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:11:09,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2023-12-16 01:11:09,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:09,248 INFO L225 Difference]: With dead ends: 589 [2023-12-16 01:11:09,248 INFO L226 Difference]: Without dead ends: 355 [2023-12-16 01:11:09,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-16 01:11:09,249 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 781 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:09,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 802 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:11:09,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-12-16 01:11:09,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 241. [2023-12-16 01:11:09,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 211 states have (on average 1.6066350710900474) internal successors, (339), 213 states have internal predecessors, (339), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 01:11:09,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 383 transitions. [2023-12-16 01:11:09,261 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 383 transitions. Word has length 112 [2023-12-16 01:11:09,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:09,261 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 383 transitions. [2023-12-16 01:11:09,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:09,261 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 383 transitions. [2023-12-16 01:11:09,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 01:11:09,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:09,262 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] [2023-12-16 01:11:09,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:11:09,262 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:09,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:09,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1412680890, now seen corresponding path program 1 times [2023-12-16 01:11:09,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:09,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049670110] [2023-12-16 01:11:09,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:09,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:09,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:09,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:09,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:11:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:09,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:11:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:09,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:11:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:09,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:09,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:09,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049670110] [2023-12-16 01:11:09,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049670110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:09,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:09,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:11:09,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577399947] [2023-12-16 01:11:09,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:09,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:11:09,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:09,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:11:09,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:11:09,376 INFO L87 Difference]: Start difference. First operand 241 states and 383 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:10,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:10,678 INFO L93 Difference]: Finished difference Result 868 states and 1411 transitions. [2023-12-16 01:11:10,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:11:10,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2023-12-16 01:11:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:10,681 INFO L225 Difference]: With dead ends: 868 [2023-12-16 01:11:10,681 INFO L226 Difference]: Without dead ends: 641 [2023-12-16 01:11:10,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:11:10,682 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 948 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:10,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 750 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 01:11:10,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-12-16 01:11:10,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 476. [2023-12-16 01:11:10,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 423 states have (on average 1.6170212765957446) internal successors, (684), 426 states have internal predecessors, (684), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2023-12-16 01:11:10,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 763 transitions. [2023-12-16 01:11:10,699 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 763 transitions. Word has length 112 [2023-12-16 01:11:10,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:10,699 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 763 transitions. [2023-12-16 01:11:10,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:10,700 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 763 transitions. [2023-12-16 01:11:10,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 01:11:10,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:10,700 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] [2023-12-16 01:11:10,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 01:11:10,701 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:10,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:10,701 INFO L85 PathProgramCache]: Analyzing trace with hash -418428094, now seen corresponding path program 1 times [2023-12-16 01:11:10,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:10,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084891510] [2023-12-16 01:11:10,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:10,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:10,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:10,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:10,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:11:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:10,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:11:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:11:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:10,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:10,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084891510] [2023-12-16 01:11:10,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084891510] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:10,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:10,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:11:10,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899667910] [2023-12-16 01:11:10,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:10,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:11:10,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:10,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:11:10,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:11:10,951 INFO L87 Difference]: Start difference. First operand 476 states and 763 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:13,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:13,034 INFO L93 Difference]: Finished difference Result 1429 states and 2323 transitions. [2023-12-16 01:11:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:11:13,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2023-12-16 01:11:13,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:13,060 INFO L225 Difference]: With dead ends: 1429 [2023-12-16 01:11:13,060 INFO L226 Difference]: Without dead ends: 967 [2023-12-16 01:11:13,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:11:13,062 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 961 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 2388 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:13,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 1426 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2388 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 01:11:13,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2023-12-16 01:11:13,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 694. [2023-12-16 01:11:13,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 618 states have (on average 1.610032362459547) internal successors, (995), 622 states have internal predecessors, (995), 55 states have call successors, (55), 19 states have call predecessors, (55), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2023-12-16 01:11:13,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1108 transitions. [2023-12-16 01:11:13,153 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1108 transitions. Word has length 112 [2023-12-16 01:11:13,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:13,153 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 1108 transitions. [2023-12-16 01:11:13,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:13,154 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1108 transitions. [2023-12-16 01:11:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 01:11:13,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:13,154 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] [2023-12-16 01:11:13,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 01:11:13,155 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:13,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:13,155 INFO L85 PathProgramCache]: Analyzing trace with hash 932957124, now seen corresponding path program 1 times [2023-12-16 01:11:13,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:13,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928286464] [2023-12-16 01:11:13,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:13,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:13,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:13,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:11:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:13,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:11:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:13,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:11:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:13,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:13,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928286464] [2023-12-16 01:11:13,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928286464] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:13,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:13,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:11:13,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258726795] [2023-12-16 01:11:13,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:13,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:11:13,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:13,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:11:13,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:11:13,371 INFO L87 Difference]: Start difference. First operand 694 states and 1108 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:15,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:15,271 INFO L93 Difference]: Finished difference Result 2252 states and 3654 transitions. [2023-12-16 01:11:15,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:11:15,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2023-12-16 01:11:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:15,301 INFO L225 Difference]: With dead ends: 2252 [2023-12-16 01:11:15,301 INFO L226 Difference]: Without dead ends: 1572 [2023-12-16 01:11:15,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:11:15,320 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 959 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 2441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:15,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 1424 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:11:15,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2023-12-16 01:11:15,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1131. [2023-12-16 01:11:15,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 1009 states have (on average 1.6035678889990088) internal successors, (1618), 1015 states have internal predecessors, (1618), 87 states have call successors, (87), 31 states have call predecessors, (87), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-16 01:11:15,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1803 transitions. [2023-12-16 01:11:15,387 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1803 transitions. Word has length 112 [2023-12-16 01:11:15,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:15,387 INFO L495 AbstractCegarLoop]: Abstraction has 1131 states and 1803 transitions. [2023-12-16 01:11:15,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:15,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1803 transitions. [2023-12-16 01:11:15,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 01:11:15,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:15,388 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] [2023-12-16 01:11:15,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 01:11:15,389 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:15,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:15,389 INFO L85 PathProgramCache]: Analyzing trace with hash -686017790, now seen corresponding path program 1 times [2023-12-16 01:11:15,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:15,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352258089] [2023-12-16 01:11:15,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:15,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:15,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:15,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:15,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:11:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:15,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:11:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:15,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:11:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:15,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:15,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:15,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352258089] [2023-12-16 01:11:15,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352258089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:15,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:15,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:11:15,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084610756] [2023-12-16 01:11:15,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:15,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:11:15,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:15,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:11:15,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:11:15,515 INFO L87 Difference]: Start difference. First operand 1131 states and 1803 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:17,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:17,546 INFO L93 Difference]: Finished difference Result 3833 states and 6201 transitions. [2023-12-16 01:11:17,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:11:17,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2023-12-16 01:11:17,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:17,556 INFO L225 Difference]: With dead ends: 3833 [2023-12-16 01:11:17,556 INFO L226 Difference]: Without dead ends: 2716 [2023-12-16 01:11:17,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:11:17,559 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 961 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 2427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:17,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 1424 Invalid, 2427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2370 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:11:17,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2023-12-16 01:11:17,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 2006. [2023-12-16 01:11:17,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2006 states, 1792 states have (on average 1.5982142857142858) internal successors, (2864), 1802 states have internal predecessors, (2864), 151 states have call successors, (151), 55 states have call predecessors, (151), 62 states have return successors, (184), 156 states have call predecessors, (184), 149 states have call successors, (184) [2023-12-16 01:11:17,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 3199 transitions. [2023-12-16 01:11:17,769 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 3199 transitions. Word has length 112 [2023-12-16 01:11:17,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:17,770 INFO L495 AbstractCegarLoop]: Abstraction has 2006 states and 3199 transitions. [2023-12-16 01:11:17,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:17,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 3199 transitions. [2023-12-16 01:11:17,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 01:11:17,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:17,796 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] [2023-12-16 01:11:17,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 01:11:17,796 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:17,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:17,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1569526780, now seen corresponding path program 1 times [2023-12-16 01:11:17,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:17,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077342242] [2023-12-16 01:11:17,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:17,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:17,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:17,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:17,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:11:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:17,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:11:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:17,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:11:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:17,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:17,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077342242] [2023-12-16 01:11:17,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077342242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:17,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:17,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:11:17,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845414421] [2023-12-16 01:11:17,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:17,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:11:17,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:17,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:11:17,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:11:17,978 INFO L87 Difference]: Start difference. First operand 2006 states and 3199 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:20,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:20,048 INFO L93 Difference]: Finished difference Result 6987 states and 11299 transitions. [2023-12-16 01:11:20,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:11:20,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2023-12-16 01:11:20,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:20,095 INFO L225 Difference]: With dead ends: 6987 [2023-12-16 01:11:20,095 INFO L226 Difference]: Without dead ends: 4995 [2023-12-16 01:11:20,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:11:20,112 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 957 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 2342 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 2399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:20,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1424 Invalid, 2399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2342 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:11:20,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4995 states. [2023-12-16 01:11:20,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4995 to 3770. [2023-12-16 01:11:20,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3770 states, 3372 states have (on average 1.5954922894424675) internal successors, (5380), 3390 states have internal predecessors, (5380), 279 states have call successors, (279), 103 states have call predecessors, (279), 118 states have return successors, (374), 292 states have call predecessors, (374), 277 states have call successors, (374) [2023-12-16 01:11:20,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 6033 transitions. [2023-12-16 01:11:20,304 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 6033 transitions. Word has length 112 [2023-12-16 01:11:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:20,305 INFO L495 AbstractCegarLoop]: Abstraction has 3770 states and 6033 transitions. [2023-12-16 01:11:20,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:20,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 6033 transitions. [2023-12-16 01:11:20,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 01:11:20,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:20,310 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] [2023-12-16 01:11:20,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 01:11:20,310 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:20,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:20,310 INFO L85 PathProgramCache]: Analyzing trace with hash 784858502, now seen corresponding path program 1 times [2023-12-16 01:11:20,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:20,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81855130] [2023-12-16 01:11:20,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:20,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:20,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:20,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:20,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:11:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:20,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:11:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:20,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:11:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:20,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:20,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:20,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81855130] [2023-12-16 01:11:20,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81855130] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:20,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:20,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:11:20,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765741785] [2023-12-16 01:11:20,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:20,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:11:20,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:20,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:11:20,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:11:20,561 INFO L87 Difference]: Start difference. First operand 3770 states and 6033 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:23,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:23,013 INFO L93 Difference]: Finished difference Result 13313 states and 21587 transitions. [2023-12-16 01:11:23,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:11:23,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2023-12-16 01:11:23,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:23,063 INFO L225 Difference]: With dead ends: 13313 [2023-12-16 01:11:23,064 INFO L226 Difference]: Without dead ends: 9557 [2023-12-16 01:11:23,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:11:23,077 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 956 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 2329 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:23,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 1424 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2329 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:11:23,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9557 states. [2023-12-16 01:11:23,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9557 to 7311. [2023-12-16 01:11:23,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 6545 states have (on average 1.5935828877005347) internal successors, (10430), 6579 states have internal predecessors, (10430), 535 states have call successors, (535), 199 states have call predecessors, (535), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2023-12-16 01:11:23,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 11773 transitions. [2023-12-16 01:11:23,462 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 11773 transitions. Word has length 112 [2023-12-16 01:11:23,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:23,463 INFO L495 AbstractCegarLoop]: Abstraction has 7311 states and 11773 transitions. [2023-12-16 01:11:23,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 11773 transitions. [2023-12-16 01:11:23,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 01:11:23,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:23,469 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] [2023-12-16 01:11:23,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 01:11:23,470 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:23,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1633045564, now seen corresponding path program 1 times [2023-12-16 01:11:23,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:23,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846274878] [2023-12-16 01:11:23,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:23,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:23,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:23,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:23,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:11:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:23,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:11:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:11:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:23,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:23,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:23,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846274878] [2023-12-16 01:11:23,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846274878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:23,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:23,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:11:23,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46570172] [2023-12-16 01:11:23,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:23,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:11:23,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:23,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:11:23,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:11:23,678 INFO L87 Difference]: Start difference. First operand 7311 states and 11773 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:25,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:25,811 INFO L93 Difference]: Finished difference Result 25964 states and 42353 transitions. [2023-12-16 01:11:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:11:25,812 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2023-12-16 01:11:25,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:25,893 INFO L225 Difference]: With dead ends: 25964 [2023-12-16 01:11:25,894 INFO L226 Difference]: Without dead ends: 18667 [2023-12-16 01:11:25,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:11:25,918 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 1023 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:25,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 928 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 01:11:25,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18667 states. [2023-12-16 01:11:26,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18667 to 14424. [2023-12-16 01:11:26,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14424 states, 12922 states have (on average 1.5923231697879585) internal successors, (20576), 12988 states have internal predecessors, (20576), 1047 states have call successors, (1047), 391 states have call predecessors, (1047), 454 states have return successors, (1838), 1108 states have call predecessors, (1838), 1045 states have call successors, (1838) [2023-12-16 01:11:27,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14424 states to 14424 states and 23461 transitions. [2023-12-16 01:11:27,031 INFO L78 Accepts]: Start accepts. Automaton has 14424 states and 23461 transitions. Word has length 112 [2023-12-16 01:11:27,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:27,031 INFO L495 AbstractCegarLoop]: Abstraction has 14424 states and 23461 transitions. [2023-12-16 01:11:27,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 14424 states and 23461 transitions. [2023-12-16 01:11:27,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 01:11:27,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:27,041 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] [2023-12-16 01:11:27,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 01:11:27,041 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:27,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:27,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1891188166, now seen corresponding path program 1 times [2023-12-16 01:11:27,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:27,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736761618] [2023-12-16 01:11:27,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:27,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:27,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:27,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:27,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:11:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:27,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:11:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:27,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:11:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:27,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:27,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:27,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736761618] [2023-12-16 01:11:27,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736761618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:27,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:27,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:11:27,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219548618] [2023-12-16 01:11:27,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:27,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:11:27,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:27,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:11:27,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:11:27,206 INFO L87 Difference]: Start difference. First operand 14424 states and 23461 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:30,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:30,302 INFO L93 Difference]: Finished difference Result 57411 states and 94153 transitions. [2023-12-16 01:11:30,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:11:30,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2023-12-16 01:11:30,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:30,678 INFO L225 Difference]: With dead ends: 57411 [2023-12-16 01:11:30,692 INFO L226 Difference]: Without dead ends: 43001 [2023-12-16 01:11:30,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:11:30,905 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 1019 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 2786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:30,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 1417 Invalid, 2786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2727 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 01:11:30,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43001 states. [2023-12-16 01:11:32,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43001 to 28585. [2023-12-16 01:11:32,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28585 states, 25675 states have (on average 1.5929113924050633) internal successors, (40898), 25805 states have internal predecessors, (40898), 2007 states have call successors, (2007), 775 states have call predecessors, (2007), 902 states have return successors, (4320), 2132 states have call predecessors, (4320), 2005 states have call successors, (4320) [2023-12-16 01:11:32,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28585 states to 28585 states and 47225 transitions. [2023-12-16 01:11:32,513 INFO L78 Accepts]: Start accepts. Automaton has 28585 states and 47225 transitions. Word has length 112 [2023-12-16 01:11:32,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:32,514 INFO L495 AbstractCegarLoop]: Abstraction has 28585 states and 47225 transitions. [2023-12-16 01:11:32,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:32,514 INFO L276 IsEmpty]: Start isEmpty. Operand 28585 states and 47225 transitions. [2023-12-16 01:11:32,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 01:11:32,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:32,567 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] [2023-12-16 01:11:32,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 01:11:32,567 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:32,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:32,568 INFO L85 PathProgramCache]: Analyzing trace with hash 896494468, now seen corresponding path program 1 times [2023-12-16 01:11:32,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:32,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550094176] [2023-12-16 01:11:32,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:32,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:32,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:32,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:32,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:11:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:32,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:11:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:32,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:11:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:32,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:32,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550094176] [2023-12-16 01:11:32,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550094176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:32,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:32,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:11:32,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979393736] [2023-12-16 01:11:32,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:32,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:11:32,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:32,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:11:32,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:11:32,733 INFO L87 Difference]: Start difference. First operand 28585 states and 47225 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:36,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:36,931 INFO L93 Difference]: Finished difference Result 112370 states and 187055 transitions. [2023-12-16 01:11:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:11:36,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2023-12-16 01:11:36,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:37,281 INFO L225 Difference]: With dead ends: 112370 [2023-12-16 01:11:37,282 INFO L226 Difference]: Without dead ends: 83799 [2023-12-16 01:11:37,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:11:37,400 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1176 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 1413 SdHoareTripleChecker+Invalid, 2339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:37,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 1413 Invalid, 2339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 01:11:37,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83799 states. [2023-12-16 01:11:40,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83799 to 55626. [2023-12-16 01:11:40,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55626 states, 49964 states have (on average 1.588423665038828) internal successors, (79364), 50222 states have internal predecessors, (79364), 3863 states have call successors, (3863), 1543 states have call predecessors, (3863), 1798 states have return successors, (10678), 4116 states have call predecessors, (10678), 3861 states have call successors, (10678) [2023-12-16 01:11:40,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55626 states to 55626 states and 93905 transitions. [2023-12-16 01:11:40,874 INFO L78 Accepts]: Start accepts. Automaton has 55626 states and 93905 transitions. Word has length 112 [2023-12-16 01:11:40,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:40,875 INFO L495 AbstractCegarLoop]: Abstraction has 55626 states and 93905 transitions. [2023-12-16 01:11:40,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:40,875 INFO L276 IsEmpty]: Start isEmpty. Operand 55626 states and 93905 transitions. [2023-12-16 01:11:40,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 01:11:40,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:40,913 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] [2023-12-16 01:11:40,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 01:11:40,913 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:40,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:40,913 INFO L85 PathProgramCache]: Analyzing trace with hash 310218246, now seen corresponding path program 1 times [2023-12-16 01:11:40,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:40,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345447745] [2023-12-16 01:11:40,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:40,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:40,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:40,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:41,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:11:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:41,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:11:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:11:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:41,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:41,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345447745] [2023-12-16 01:11:41,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345447745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:41,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:41,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:11:41,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096984802] [2023-12-16 01:11:41,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:41,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:11:41,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:41,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:11:41,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:11:41,060 INFO L87 Difference]: Start difference. First operand 55626 states and 93905 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:47,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:11:47,196 INFO L93 Difference]: Finished difference Result 214609 states and 365893 transitions. [2023-12-16 01:11:47,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:11:47,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2023-12-16 01:11:47,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:11:48,168 INFO L225 Difference]: With dead ends: 214609 [2023-12-16 01:11:48,168 INFO L226 Difference]: Without dead ends: 158997 [2023-12-16 01:11:48,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:11:48,399 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 999 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 2671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:48,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 1417 Invalid, 2671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2612 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 01:11:48,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158997 states. [2023-12-16 01:11:53,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158997 to 110987. [2023-12-16 01:11:54,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110987 states, 99949 states have (on average 1.5893505687900829) internal successors, (158854), 100463 states have internal predecessors, (158854), 7447 states have call successors, (7447), 3079 states have call predecessors, (7447), 3590 states have return successors, (27640), 7956 states have call predecessors, (27640), 7445 states have call successors, (27640) [2023-12-16 01:11:54,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110987 states to 110987 states and 193941 transitions. [2023-12-16 01:11:54,904 INFO L78 Accepts]: Start accepts. Automaton has 110987 states and 193941 transitions. Word has length 112 [2023-12-16 01:11:54,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:11:54,905 INFO L495 AbstractCegarLoop]: Abstraction has 110987 states and 193941 transitions. [2023-12-16 01:11:54,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:11:54,905 INFO L276 IsEmpty]: Start isEmpty. Operand 110987 states and 193941 transitions. [2023-12-16 01:11:55,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 01:11:55,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:11:55,038 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] [2023-12-16 01:11:55,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 01:11:55,039 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:11:55,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:11:55,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1648356540, now seen corresponding path program 1 times [2023-12-16 01:11:55,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:11:55,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144268321] [2023-12-16 01:11:55,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:11:55,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:11:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:55,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:11:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:55,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:11:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:55,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:11:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:55,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:11:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:55,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:11:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:11:55,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:11:55,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:11:55,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144268321] [2023-12-16 01:11:55,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144268321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:11:55,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:11:55,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:11:55,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287025222] [2023-12-16 01:11:55,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:11:55,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:11:55,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:11:55,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:11:55,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:11:55,172 INFO L87 Difference]: Start difference. First operand 110987 states and 193941 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-16 01:11:59,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 01:11:59,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-12-16 01:11:59,462 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 707 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:11:59,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 601 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:11:59,469 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 01:11:59,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 01:11:59,470 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (110987states) and FLOYD_HOARE automaton (currently 12 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (96569 states constructed, input type IntersectNwa). [2023-12-16 01:11:59,472 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 01:11:59,474 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 01:11:59,487 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:11:59,489 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:11:59,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:11:59 BoogieIcfgContainer [2023-12-16 01:11:59,490 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:11:59,490 INFO L158 Benchmark]: Toolchain (without parser) took 63844.32ms. Allocated memory was 161.5MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 119.0MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-16 01:11:59,491 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 161.5MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:11:59,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.09ms. Allocated memory is still 161.5MB. Free memory was 119.0MB in the beginning and 94.9MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 01:11:59,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.72ms. Allocated memory is still 161.5MB. Free memory was 94.9MB in the beginning and 91.1MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 01:11:59,491 INFO L158 Benchmark]: Boogie Preprocessor took 61.45ms. Allocated memory is still 161.5MB. Free memory was 91.1MB in the beginning and 86.1MB in the end (delta: 5.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 01:11:59,491 INFO L158 Benchmark]: RCFGBuilder took 1078.33ms. Allocated memory was 161.5MB in the beginning and 198.2MB in the end (delta: 36.7MB). Free memory was 86.1MB in the beginning and 131.7MB in the end (delta: -45.6MB). Peak memory consumption was 34.3MB. Max. memory is 8.0GB. [2023-12-16 01:11:59,491 INFO L158 Benchmark]: TraceAbstraction took 62290.30ms. Allocated memory was 198.2MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 130.7MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 01:11:59,492 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 161.5MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 355.09ms. Allocated memory is still 161.5MB. Free memory was 119.0MB in the beginning and 94.9MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.72ms. Allocated memory is still 161.5MB. Free memory was 94.9MB in the beginning and 91.1MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 61.45ms. Allocated memory is still 161.5MB. Free memory was 91.1MB in the beginning and 86.1MB in the end (delta: 5.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1078.33ms. Allocated memory was 161.5MB in the beginning and 198.2MB in the end (delta: 36.7MB). Free memory was 86.1MB in the beginning and 131.7MB in the end (delta: -45.6MB). Peak memory consumption was 34.3MB. Max. memory is 8.0GB. * TraceAbstraction took 62290.30ms. Allocated memory was 198.2MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 130.7MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 599]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 599). Cancelled while NwaCegarLoop was constructing difference of abstraction (110987states) and FLOYD_HOARE automaton (currently 12 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (96569 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 27). Cancelled while NwaCegarLoop was constructing difference of abstraction (110987states) and FLOYD_HOARE automaton (currently 12 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (96569 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 345 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 62.2s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 44.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20252 SdHoareTripleChecker+Valid, 23.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19911 mSDsluCounter, 25951 SdHoareTripleChecker+Invalid, 19.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20089 mSDsCounter, 2125 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36116 IncrementalHoareTripleChecker+Invalid, 38241 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2125 mSolverCounterUnsat, 5862 mSDtfsCounter, 36116 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 616 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 294 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 940 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110987occurred in iteration=19, InterpolantAutomatonStates: 266, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.9s AutomataMinimizationTime, 19 MinimizatonAttempts, 100506 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1805 NumberOfCodeBlocks, 1805 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1785 ConstructedInterpolants, 0 QuantifiedInterpolants, 4840 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown