./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 37139db5f2012b0b7a96ab437e26855d856636bc4064d013c0b416905ff6e54c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:57:40,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:57:40,859 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:57:40,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:57:40,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:57:40,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:57:40,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:57:40,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:57:40,896 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:57:40,897 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:57:40,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:57:40,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:57:40,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:57:40,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:57:40,900 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:57:40,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:57:40,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:57:40,901 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:57:40,902 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:57:40,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:57:40,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:57:40,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:57:40,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:57:40,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:57:40,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:57:40,907 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:57:40,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:57:40,908 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:57:40,908 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:57:40,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:57:40,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:57:40,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:57:40,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:57:40,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:57:40,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:57:40,913 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:57:40,913 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:57:40,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:57:40,914 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:57:40,914 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:57:40,914 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:57:40,915 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:57:40,915 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37139db5f2012b0b7a96ab437e26855d856636bc4064d013c0b416905ff6e54c [2024-11-16 09:57:41,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:57:41,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:57:41,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:57:41,180 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:57:41,180 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:57:41,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c [2024-11-16 09:57:42,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:57:42,854 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:57:42,855 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c [2024-11-16 09:57:42,869 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eddd913e/810f8b57ec6046e2b53a8634be35afd4/FLAG21a2f5e38 [2024-11-16 09:57:43,204 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eddd913e/810f8b57ec6046e2b53a8634be35afd4 [2024-11-16 09:57:43,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:57:43,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:57:43,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:57:43,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:57:43,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:57:43,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a0ae1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43, skipping insertion in model container [2024-11-16 09:57:43,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,256 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:57:43,415 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c[911,924] [2024-11-16 09:57:43,494 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c[8416,8429] [2024-11-16 09:57:43,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:57:43,564 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:57:43,579 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c[911,924] [2024-11-16 09:57:43,617 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c[8416,8429] [2024-11-16 09:57:43,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:57:43,680 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:57:43,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43 WrapperNode [2024-11-16 09:57:43,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:57:43,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:57:43,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:57:43,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:57:43,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,735 INFO L138 Inliner]: procedures = 63, calls = 73, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 615 [2024-11-16 09:57:43,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:57:43,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:57:43,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:57:43,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:57:43,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,752 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,785 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 09:57:43,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,795 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,809 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:57:43,811 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:57:43,812 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:57:43,812 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:57:43,813 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (1/1) ... [2024-11-16 09:57:43,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:57:43,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:57:43,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:57:43,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:57:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:57:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:57:43,904 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:57:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-16 09:57:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-16 09:57:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-16 09:57:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-16 09:57:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-16 09:57:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-16 09:57:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-16 09:57:43,906 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-16 09:57:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-16 09:57:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-16 09:57:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-16 09:57:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-16 09:57:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-16 09:57:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-16 09:57:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-16 09:57:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-16 09:57:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-16 09:57:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-16 09:57:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-16 09:57:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-16 09:57:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:57:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-16 09:57:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-16 09:57:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-16 09:57:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-16 09:57:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:57:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:57:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-16 09:57:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-16 09:57:44,050 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:57:44,054 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:57:44,618 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L225: do_read_c_~a~0#1 := ~a_t~0; [2024-11-16 09:57:44,618 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-16 09:57:44,619 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: assume !(1 == ~q_free~0); [2024-11-16 09:57:44,721 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-16 09:57:44,721 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:57:44,754 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:57:44,755 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:57:44,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:57:44 BoogieIcfgContainer [2024-11-16 09:57:44,755 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:57:44,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:57:44,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:57:44,764 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:57:44,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:57:43" (1/3) ... [2024-11-16 09:57:44,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d079c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:57:44, skipping insertion in model container [2024-11-16 09:57:44,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:57:43" (2/3) ... [2024-11-16 09:57:44,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d079c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:57:44, skipping insertion in model container [2024-11-16 09:57:44,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:57:44" (3/3) ... [2024-11-16 09:57:44,767 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.04.cil-1.c [2024-11-16 09:57:44,781 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:57:44,782 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:57:44,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:57:44,859 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c8961a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:57:44,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:57:44,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 349 states, 298 states have (on average 1.4865771812080537) internal successors, (443), 304 states have internal predecessors, (443), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 09:57:44,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:57:44,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:44,888 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:44,888 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:44,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:44,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1175248329, now seen corresponding path program 1 times [2024-11-16 09:57:44,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:44,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193591312] [2024-11-16 09:57:44,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:44,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:45,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:45,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:45,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:57:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:45,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:57:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:45,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:57:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:45,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:57:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:45,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:57:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:45,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:45,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:45,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193591312] [2024-11-16 09:57:45,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193591312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:45,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:45,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:57:45,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383900498] [2024-11-16 09:57:45,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:45,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:57:45,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:45,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:57:45,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:57:45,525 INFO L87 Difference]: Start difference. First operand has 349 states, 298 states have (on average 1.4865771812080537) internal successors, (443), 304 states have internal predecessors, (443), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:57:46,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:46,784 INFO L93 Difference]: Finished difference Result 834 states and 1230 transitions. [2024-11-16 09:57:46,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:57:46,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-16 09:57:46,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:46,808 INFO L225 Difference]: With dead ends: 834 [2024-11-16 09:57:46,808 INFO L226 Difference]: Without dead ends: 492 [2024-11-16 09:57:46,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:57:46,820 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 1047 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:46,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1276 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:57:46,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-16 09:57:46,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 452. [2024-11-16 09:57:46,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 381 states have (on average 1.4094488188976377) internal successors, (537), 387 states have internal predecessors, (537), 47 states have call successors, (47), 21 states have call predecessors, (47), 22 states have return successors, (50), 46 states have call predecessors, (50), 45 states have call successors, (50) [2024-11-16 09:57:46,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 634 transitions. [2024-11-16 09:57:46,934 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 634 transitions. Word has length 69 [2024-11-16 09:57:46,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:46,934 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 634 transitions. [2024-11-16 09:57:46,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:57:46,935 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 634 transitions. [2024-11-16 09:57:46,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:57:46,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:46,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:46,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:57:46,940 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:46,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:46,940 INFO L85 PathProgramCache]: Analyzing trace with hash -461809257, now seen corresponding path program 1 times [2024-11-16 09:57:46,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:46,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48556311] [2024-11-16 09:57:46,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:46,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:47,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:47,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:47,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:57:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:47,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:57:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:47,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:57:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:47,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:57:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:47,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:57:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:47,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:47,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:47,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48556311] [2024-11-16 09:57:47,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48556311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:47,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:47,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:57:47,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545225104] [2024-11-16 09:57:47,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:47,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:57:47,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:47,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:57:47,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:57:47,184 INFO L87 Difference]: Start difference. First operand 452 states and 634 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:57:48,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:48,387 INFO L93 Difference]: Finished difference Result 887 states and 1238 transitions. [2024-11-16 09:57:48,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 09:57:48,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-16 09:57:48,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:48,397 INFO L225 Difference]: With dead ends: 887 [2024-11-16 09:57:48,398 INFO L226 Difference]: Without dead ends: 653 [2024-11-16 09:57:48,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-16 09:57:48,401 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 1065 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:48,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 1636 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:57:48,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2024-11-16 09:57:48,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 576. [2024-11-16 09:57:48,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 483 states have (on average 1.3975155279503106) internal successors, (675), 491 states have internal predecessors, (675), 60 states have call successors, (60), 28 states have call predecessors, (60), 31 states have return successors, (71), 60 states have call predecessors, (71), 58 states have call successors, (71) [2024-11-16 09:57:48,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 806 transitions. [2024-11-16 09:57:48,470 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 806 transitions. Word has length 69 [2024-11-16 09:57:48,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:48,472 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 806 transitions. [2024-11-16 09:57:48,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:57:48,472 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 806 transitions. [2024-11-16 09:57:48,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:57:48,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:48,478 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:48,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:57:48,478 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:48,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:48,479 INFO L85 PathProgramCache]: Analyzing trace with hash 231583448, now seen corresponding path program 1 times [2024-11-16 09:57:48,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:48,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805016342] [2024-11-16 09:57:48,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:48,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:57:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:57:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:57:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:57:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:57:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:48,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:48,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:48,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805016342] [2024-11-16 09:57:48,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805016342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:48,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:48,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 09:57:48,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144418096] [2024-11-16 09:57:48,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:48,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 09:57:48,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:48,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 09:57:48,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:57:48,698 INFO L87 Difference]: Start difference. First operand 576 states and 806 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-16 09:57:50,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:50,650 INFO L93 Difference]: Finished difference Result 2291 states and 3173 transitions. [2024-11-16 09:57:50,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 09:57:50,650 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 69 [2024-11-16 09:57:50,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:50,660 INFO L225 Difference]: With dead ends: 2291 [2024-11-16 09:57:50,660 INFO L226 Difference]: Without dead ends: 1921 [2024-11-16 09:57:50,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 09:57:50,663 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 2663 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2681 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:50,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2681 Valid, 2323 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [519 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:57:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2024-11-16 09:57:50,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1748. [2024-11-16 09:57:50,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1450 states have (on average 1.336551724137931) internal successors, (1938), 1473 states have internal predecessors, (1938), 170 states have call successors, (170), 111 states have call predecessors, (170), 126 states have return successors, (204), 166 states have call predecessors, (204), 168 states have call successors, (204) [2024-11-16 09:57:50,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2312 transitions. [2024-11-16 09:57:50,825 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2312 transitions. Word has length 69 [2024-11-16 09:57:50,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:50,825 INFO L471 AbstractCegarLoop]: Abstraction has 1748 states and 2312 transitions. [2024-11-16 09:57:50,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-16 09:57:50,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2312 transitions. [2024-11-16 09:57:50,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:57:50,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:50,827 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:50,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:57:50,828 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:50,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:50,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1901740682, now seen corresponding path program 1 times [2024-11-16 09:57:50,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:50,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077770277] [2024-11-16 09:57:50,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:50,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:50,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:50,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:50,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:57:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:50,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:57:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:50,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:57:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:50,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 09:57:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:50,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:57:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:50,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:50,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077770277] [2024-11-16 09:57:50,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077770277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:50,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:50,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:57:50,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247442074] [2024-11-16 09:57:50,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:50,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:57:50,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:50,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:57:50,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:57:50,982 INFO L87 Difference]: Start difference. First operand 1748 states and 2312 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:57:51,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:51,918 INFO L93 Difference]: Finished difference Result 3416 states and 4523 transitions. [2024-11-16 09:57:51,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:57:51,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-16 09:57:51,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:51,927 INFO L225 Difference]: With dead ends: 3416 [2024-11-16 09:57:51,928 INFO L226 Difference]: Without dead ends: 1880 [2024-11-16 09:57:51,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:57:51,932 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 347 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:51,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 2009 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:57:51,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2024-11-16 09:57:52,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1788. [2024-11-16 09:57:52,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1788 states, 1482 states have (on average 1.3252361673414306) internal successors, (1964), 1505 states have internal predecessors, (1964), 170 states have call successors, (170), 111 states have call predecessors, (170), 134 states have return successors, (212), 174 states have call predecessors, (212), 168 states have call successors, (212) [2024-11-16 09:57:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2346 transitions. [2024-11-16 09:57:52,051 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2346 transitions. Word has length 70 [2024-11-16 09:57:52,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:52,051 INFO L471 AbstractCegarLoop]: Abstraction has 1788 states and 2346 transitions. [2024-11-16 09:57:52,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:57:52,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2346 transitions. [2024-11-16 09:57:52,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:57:52,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:52,054 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:52,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:57:52,054 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:52,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:52,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1777667435, now seen corresponding path program 1 times [2024-11-16 09:57:52,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:52,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118819238] [2024-11-16 09:57:52,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:52,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:57:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:57:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:57:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:57:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 09:57:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:57:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:52,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:52,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:52,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118819238] [2024-11-16 09:57:52,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118819238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:52,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:52,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 09:57:52,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018210968] [2024-11-16 09:57:52,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:52,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 09:57:52,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:52,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 09:57:52,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:57:52,194 INFO L87 Difference]: Start difference. First operand 1788 states and 2346 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 09:57:54,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:54,107 INFO L93 Difference]: Finished difference Result 5772 states and 7632 transitions. [2024-11-16 09:57:54,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 09:57:54,108 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 70 [2024-11-16 09:57:54,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:54,120 INFO L225 Difference]: With dead ends: 5772 [2024-11-16 09:57:54,120 INFO L226 Difference]: Without dead ends: 2159 [2024-11-16 09:57:54,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 09:57:54,133 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 2777 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2795 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 2135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:54,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2795 Valid, 2375 Invalid, 2135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:57:54,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2159 states. [2024-11-16 09:57:54,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2159 to 1974. [2024-11-16 09:57:54,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1596 states have (on average 1.293859649122807) internal successors, (2065), 1621 states have internal predecessors, (2065), 210 states have call successors, (210), 139 states have call predecessors, (210), 166 states have return successors, (258), 216 states have call predecessors, (258), 208 states have call successors, (258) [2024-11-16 09:57:54,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 2533 transitions. [2024-11-16 09:57:54,335 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 2533 transitions. Word has length 70 [2024-11-16 09:57:54,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:54,336 INFO L471 AbstractCegarLoop]: Abstraction has 1974 states and 2533 transitions. [2024-11-16 09:57:54,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 09:57:54,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 2533 transitions. [2024-11-16 09:57:54,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 09:57:54,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:54,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:54,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:57:54,341 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:54,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:54,341 INFO L85 PathProgramCache]: Analyzing trace with hash 2039246931, now seen corresponding path program 1 times [2024-11-16 09:57:54,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:54,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171459306] [2024-11-16 09:57:54,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:54,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:54,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:54,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 09:57:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:54,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 09:57:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:54,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 09:57:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:54,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 09:57:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:54,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:54,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:54,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171459306] [2024-11-16 09:57:54,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171459306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:54,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:54,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:57:54,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709562121] [2024-11-16 09:57:54,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:54,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:57:54,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:54,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:57:54,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:57:54,497 INFO L87 Difference]: Start difference. First operand 1974 states and 2533 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:55,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:55,825 INFO L93 Difference]: Finished difference Result 2466 states and 3272 transitions. [2024-11-16 09:57:55,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:57:55,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 95 [2024-11-16 09:57:55,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:55,836 INFO L225 Difference]: With dead ends: 2466 [2024-11-16 09:57:55,836 INFO L226 Difference]: Without dead ends: 2275 [2024-11-16 09:57:55,838 INFO L431 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 [2024-11-16 09:57:55,839 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 930 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:55,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 1028 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:57:55,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2024-11-16 09:57:56,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2167. [2024-11-16 09:57:56,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2167 states, 1769 states have (on average 1.3103448275862069) internal successors, (2318), 1795 states have internal predecessors, (2318), 223 states have call successors, (223), 145 states have call predecessors, (223), 173 states have return successors, (274), 229 states have call predecessors, (274), 221 states have call successors, (274) [2024-11-16 09:57:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2167 states to 2167 states and 2815 transitions. [2024-11-16 09:57:56,057 INFO L78 Accepts]: Start accepts. Automaton has 2167 states and 2815 transitions. Word has length 95 [2024-11-16 09:57:56,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:56,058 INFO L471 AbstractCegarLoop]: Abstraction has 2167 states and 2815 transitions. [2024-11-16 09:57:56,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:56,058 INFO L276 IsEmpty]: Start isEmpty. Operand 2167 states and 2815 transitions. [2024-11-16 09:57:56,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 09:57:56,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:56,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:56,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:57:56,061 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:56,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:56,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1801479599, now seen corresponding path program 1 times [2024-11-16 09:57:56,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:56,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713398847] [2024-11-16 09:57:56,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:56,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:56,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:56,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 09:57:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:56,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 09:57:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:56,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 09:57:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:56,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 09:57:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:56,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:56,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713398847] [2024-11-16 09:57:56,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713398847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:56,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:56,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:56,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925443275] [2024-11-16 09:57:56,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:56,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:56,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:56,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:56,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:56,231 INFO L87 Difference]: Start difference. First operand 2167 states and 2815 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:57,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:57,742 INFO L93 Difference]: Finished difference Result 2909 states and 3924 transitions. [2024-11-16 09:57:57,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:57:57,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 95 [2024-11-16 09:57:57,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:57,775 INFO L225 Difference]: With dead ends: 2909 [2024-11-16 09:57:57,776 INFO L226 Difference]: Without dead ends: 2525 [2024-11-16 09:57:57,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:57:57,778 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 968 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 1700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:57,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 1324 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:57:57,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2024-11-16 09:57:57,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2349. [2024-11-16 09:57:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 1931 states have (on average 1.3200414293112377) internal successors, (2549), 1958 states have internal predecessors, (2549), 236 states have call successors, (236), 151 states have call predecessors, (236), 180 states have return successors, (289), 243 states have call predecessors, (289), 234 states have call successors, (289) [2024-11-16 09:57:57,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3074 transitions. [2024-11-16 09:57:57,988 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3074 transitions. Word has length 95 [2024-11-16 09:57:57,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:57,989 INFO L471 AbstractCegarLoop]: Abstraction has 2349 states and 3074 transitions. [2024-11-16 09:57:57,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:57,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3074 transitions. [2024-11-16 09:57:57,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 09:57:57,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:57,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:57,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:57:57,992 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:57,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:57,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1681359726, now seen corresponding path program 1 times [2024-11-16 09:57:57,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:57,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254614372] [2024-11-16 09:57:57,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:57,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:58,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:58,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 09:57:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:58,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 09:57:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:58,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 09:57:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:58,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 09:57:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:58,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:58,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:58,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254614372] [2024-11-16 09:57:58,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254614372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:58,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:58,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:58,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639158153] [2024-11-16 09:57:58,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:58,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:58,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:58,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:58,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:58,173 INFO L87 Difference]: Start difference. First operand 2349 states and 3074 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:59,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:59,649 INFO L93 Difference]: Finished difference Result 3562 states and 4881 transitions. [2024-11-16 09:57:59,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:57:59,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 95 [2024-11-16 09:57:59,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:59,663 INFO L225 Difference]: With dead ends: 3562 [2024-11-16 09:57:59,663 INFO L226 Difference]: Without dead ends: 2996 [2024-11-16 09:57:59,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:57:59,667 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 937 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:59,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 1773 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:57:59,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2024-11-16 09:57:59,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 2714. [2024-11-16 09:57:59,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2714 states, 2256 states have (on average 1.3351063829787233) internal successors, (3012), 2285 states have internal predecessors, (3012), 262 states have call successors, (262), 163 states have call predecessors, (262), 194 states have return successors, (323), 271 states have call predecessors, (323), 260 states have call successors, (323) [2024-11-16 09:57:59,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 3597 transitions. [2024-11-16 09:57:59,983 INFO L78 Accepts]: Start accepts. Automaton has 2714 states and 3597 transitions. Word has length 95 [2024-11-16 09:57:59,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:59,984 INFO L471 AbstractCegarLoop]: Abstraction has 2714 states and 3597 transitions. [2024-11-16 09:57:59,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:59,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2714 states and 3597 transitions. [2024-11-16 09:57:59,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 09:57:59,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:59,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:59,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:57:59,987 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:59,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:59,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1261842895, now seen corresponding path program 1 times [2024-11-16 09:57:59,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:59,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66682097] [2024-11-16 09:57:59,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:59,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:00,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:00,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 09:58:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:00,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 09:58:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:00,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 09:58:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:00,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 09:58:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:58:00,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:00,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66682097] [2024-11-16 09:58:00,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66682097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:00,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:58:00,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:58:00,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334830738] [2024-11-16 09:58:00,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:00,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:58:00,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:00,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:58:00,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:58:00,183 INFO L87 Difference]: Start difference. First operand 2714 states and 3597 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:01,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:01,658 INFO L93 Difference]: Finished difference Result 4827 states and 6728 transitions. [2024-11-16 09:58:01,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:58:01,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 95 [2024-11-16 09:58:01,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:01,678 INFO L225 Difference]: With dead ends: 4827 [2024-11-16 09:58:01,678 INFO L226 Difference]: Without dead ends: 3896 [2024-11-16 09:58:01,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:58:01,682 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 929 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:01,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 1773 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:58:01,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2024-11-16 09:58:01,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3445. [2024-11-16 09:58:01,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 2907 states have (on average 1.3546611627106984) internal successors, (3938), 2940 states have internal predecessors, (3938), 314 states have call successors, (314), 187 states have call predecessors, (314), 222 states have return successors, (397), 327 states have call predecessors, (397), 312 states have call successors, (397) [2024-11-16 09:58:01,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 4649 transitions. [2024-11-16 09:58:01,989 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 4649 transitions. Word has length 95 [2024-11-16 09:58:01,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:01,990 INFO L471 AbstractCegarLoop]: Abstraction has 3445 states and 4649 transitions. [2024-11-16 09:58:01,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:01,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 4649 transitions. [2024-11-16 09:58:01,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 09:58:01,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:01,995 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:01,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:58:01,996 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:01,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:01,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1248310094, now seen corresponding path program 1 times [2024-11-16 09:58:01,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:01,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554752673] [2024-11-16 09:58:01,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:01,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:02,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:02,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 09:58:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:02,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 09:58:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:02,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 09:58:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:02,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 09:58:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:02,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:58:02,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:02,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554752673] [2024-11-16 09:58:02,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554752673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:02,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:58:02,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:58:02,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894509746] [2024-11-16 09:58:02,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:02,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:58:02,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:02,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:58:02,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:58:02,140 INFO L87 Difference]: Start difference. First operand 3445 states and 4649 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:03,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:03,838 INFO L93 Difference]: Finished difference Result 7356 states and 10438 transitions. [2024-11-16 09:58:03,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:58:03,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 95 [2024-11-16 09:58:03,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:03,862 INFO L225 Difference]: With dead ends: 7356 [2024-11-16 09:58:03,862 INFO L226 Difference]: Without dead ends: 5694 [2024-11-16 09:58:03,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:58:03,868 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 925 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:03,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 1773 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:58:03,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5694 states. [2024-11-16 09:58:04,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5694 to 4912. [2024-11-16 09:58:04,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4912 states, 4214 states have (on average 1.3754152823920265) internal successors, (5796), 4255 states have internal predecessors, (5796), 418 states have call successors, (418), 235 states have call predecessors, (418), 278 states have return successors, (563), 439 states have call predecessors, (563), 416 states have call successors, (563) [2024-11-16 09:58:04,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4912 states to 4912 states and 6777 transitions. [2024-11-16 09:58:04,262 INFO L78 Accepts]: Start accepts. Automaton has 4912 states and 6777 transitions. Word has length 95 [2024-11-16 09:58:04,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:04,263 INFO L471 AbstractCegarLoop]: Abstraction has 4912 states and 6777 transitions. [2024-11-16 09:58:04,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:04,269 INFO L276 IsEmpty]: Start isEmpty. Operand 4912 states and 6777 transitions. [2024-11-16 09:58:04,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 09:58:04,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:04,274 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:04,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:58:04,275 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:04,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:04,275 INFO L85 PathProgramCache]: Analyzing trace with hash -139494895, now seen corresponding path program 1 times [2024-11-16 09:58:04,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:04,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963476198] [2024-11-16 09:58:04,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:04,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 09:58:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 09:58:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 09:58:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 09:58:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:58:04,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:04,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963476198] [2024-11-16 09:58:04,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963476198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:04,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:58:04,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:58:04,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562233598] [2024-11-16 09:58:04,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:04,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:58:04,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:04,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:58:04,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:58:04,425 INFO L87 Difference]: Start difference. First operand 4912 states and 6777 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:06,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:06,244 INFO L93 Difference]: Finished difference Result 13453 states and 19454 transitions. [2024-11-16 09:58:06,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:58:06,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 95 [2024-11-16 09:58:06,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:06,285 INFO L225 Difference]: With dead ends: 13453 [2024-11-16 09:58:06,285 INFO L226 Difference]: Without dead ends: 10324 [2024-11-16 09:58:06,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:58:06,299 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 1095 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 1793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:06,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 1763 Invalid, 1793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:58:06,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10324 states. [2024-11-16 09:58:06,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10324 to 7811. [2024-11-16 09:58:06,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7811 states, 6809 states have (on average 1.3949184902335146) internal successors, (9498), 6866 states have internal predecessors, (9498), 610 states have call successors, (610), 331 states have call predecessors, (610), 390 states have return successors, (933), 647 states have call predecessors, (933), 608 states have call successors, (933) [2024-11-16 09:58:06,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7811 states to 7811 states and 11041 transitions. [2024-11-16 09:58:06,850 INFO L78 Accepts]: Start accepts. Automaton has 7811 states and 11041 transitions. Word has length 95 [2024-11-16 09:58:06,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:06,851 INFO L471 AbstractCegarLoop]: Abstraction has 7811 states and 11041 transitions. [2024-11-16 09:58:06,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:06,851 INFO L276 IsEmpty]: Start isEmpty. Operand 7811 states and 11041 transitions. [2024-11-16 09:58:06,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 09:58:06,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:06,860 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:06,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:58:06,861 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:06,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:06,861 INFO L85 PathProgramCache]: Analyzing trace with hash 727557330, now seen corresponding path program 1 times [2024-11-16 09:58:06,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:06,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569821091] [2024-11-16 09:58:06,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:06,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 09:58:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 09:58:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 09:58:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 09:58:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:06,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:58:06,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:06,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569821091] [2024-11-16 09:58:06,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569821091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:06,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:58:06,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:58:06,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510488914] [2024-11-16 09:58:06,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:06,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:58:06,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:06,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:58:06,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:58:06,993 INFO L87 Difference]: Start difference. First operand 7811 states and 11041 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:09,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:09,335 INFO L93 Difference]: Finished difference Result 24046 states and 35304 transitions. [2024-11-16 09:58:09,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:58:09,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 95 [2024-11-16 09:58:09,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:09,407 INFO L225 Difference]: With dead ends: 24046 [2024-11-16 09:58:09,407 INFO L226 Difference]: Without dead ends: 18018 [2024-11-16 09:58:09,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:58:09,431 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 1050 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:09,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 1754 Invalid, 1783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:58:09,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18018 states. [2024-11-16 09:58:10,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18018 to 13302. [2024-11-16 09:58:10,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13302 states, 11708 states have (on average 1.4116843184147592) internal successors, (16528), 11797 states have internal predecessors, (16528), 978 states have call successors, (978), 523 states have call predecessors, (978), 614 states have return successors, (1819), 1047 states have call predecessors, (1819), 976 states have call successors, (1819) [2024-11-16 09:58:10,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13302 states to 13302 states and 19325 transitions. [2024-11-16 09:58:10,306 INFO L78 Accepts]: Start accepts. Automaton has 13302 states and 19325 transitions. Word has length 95 [2024-11-16 09:58:10,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:10,307 INFO L471 AbstractCegarLoop]: Abstraction has 13302 states and 19325 transitions. [2024-11-16 09:58:10,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:10,307 INFO L276 IsEmpty]: Start isEmpty. Operand 13302 states and 19325 transitions. [2024-11-16 09:58:10,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 09:58:10,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:10,319 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:10,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:58:10,320 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:10,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:10,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1171168753, now seen corresponding path program 1 times [2024-11-16 09:58:10,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:10,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070720890] [2024-11-16 09:58:10,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:10,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 09:58:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 09:58:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 09:58:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 09:58:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:10,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:58:10,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:10,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070720890] [2024-11-16 09:58:10,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070720890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:10,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:58:10,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:58:10,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586707495] [2024-11-16 09:58:10,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:10,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:58:10,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:10,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:58:10,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:58:10,458 INFO L87 Difference]: Start difference. First operand 13302 states and 19325 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:13,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:13,880 INFO L93 Difference]: Finished difference Result 43871 states and 65618 transitions. [2024-11-16 09:58:13,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:58:13,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 95 [2024-11-16 09:58:13,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:13,995 INFO L225 Difference]: With dead ends: 43871 [2024-11-16 09:58:13,995 INFO L226 Difference]: Without dead ends: 32352 [2024-11-16 09:58:14,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:58:14,037 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 1009 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:14,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1763 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:58:14,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32352 states. [2024-11-16 09:58:15,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32352 to 24537. [2024-11-16 09:58:15,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24537 states, 21791 states have (on average 1.4225138818778396) internal successors, (30998), 21944 states have internal predecessors, (30998), 1682 states have call successors, (1682), 907 states have call predecessors, (1682), 1062 states have return successors, (4045), 1815 states have call predecessors, (4045), 1680 states have call successors, (4045) [2024-11-16 09:58:15,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24537 states to 24537 states and 36725 transitions. [2024-11-16 09:58:15,587 INFO L78 Accepts]: Start accepts. Automaton has 24537 states and 36725 transitions. Word has length 95 [2024-11-16 09:58:15,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:15,587 INFO L471 AbstractCegarLoop]: Abstraction has 24537 states and 36725 transitions. [2024-11-16 09:58:15,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:15,588 INFO L276 IsEmpty]: Start isEmpty. Operand 24537 states and 36725 transitions. [2024-11-16 09:58:15,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 09:58:15,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:15,613 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:15,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:58:15,613 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:15,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:15,614 INFO L85 PathProgramCache]: Analyzing trace with hash 215647474, now seen corresponding path program 1 times [2024-11-16 09:58:15,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:15,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144999556] [2024-11-16 09:58:15,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:15,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:15,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:15,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 09:58:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:15,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 09:58:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:15,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 09:58:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:15,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 09:58:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:15,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:58:15,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:15,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144999556] [2024-11-16 09:58:15,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144999556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:15,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:58:15,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:58:15,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814274533] [2024-11-16 09:58:15,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:15,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:58:15,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:15,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:58:15,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:58:15,748 INFO L87 Difference]: Start difference. First operand 24537 states and 36725 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:20,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:20,611 INFO L93 Difference]: Finished difference Result 83072 states and 127324 transitions. [2024-11-16 09:58:20,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:58:20,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 95 [2024-11-16 09:58:20,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:20,900 INFO L225 Difference]: With dead ends: 83072 [2024-11-16 09:58:20,901 INFO L226 Difference]: Without dead ends: 60318 [2024-11-16 09:58:20,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:58:20,986 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 966 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:20,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 1763 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1676 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:58:21,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60318 states. [2024-11-16 09:58:24,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60318 to 46940. [2024-11-16 09:58:24,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46940 states, 41954 states have (on average 1.4300424274205081) internal successors, (59996), 42235 states have internal predecessors, (59996), 3026 states have call successors, (3026), 1675 states have call predecessors, (3026), 1958 states have return successors, (9891), 3287 states have call predecessors, (9891), 3024 states have call successors, (9891) [2024-11-16 09:58:24,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46940 states to 46940 states and 72913 transitions. [2024-11-16 09:58:24,659 INFO L78 Accepts]: Start accepts. Automaton has 46940 states and 72913 transitions. Word has length 95 [2024-11-16 09:58:24,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:58:24,660 INFO L471 AbstractCegarLoop]: Abstraction has 46940 states and 72913 transitions. [2024-11-16 09:58:24,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:24,660 INFO L276 IsEmpty]: Start isEmpty. Operand 46940 states and 72913 transitions. [2024-11-16 09:58:24,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 09:58:24,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:58:24,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:58:24,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:58:24,710 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:58:24,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:58:24,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1893385775, now seen corresponding path program 1 times [2024-11-16 09:58:24,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:58:24,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065242322] [2024-11-16 09:58:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:58:24,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:58:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:24,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:58:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:24,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 09:58:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:24,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 09:58:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:24,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 09:58:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:24,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 09:58:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:58:24,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:58:24,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:58:24,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065242322] [2024-11-16 09:58:24,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065242322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:58:24,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:58:24,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:58:24,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955923173] [2024-11-16 09:58:24,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:58:24,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:58:24,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:58:24,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:58:24,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:58:24,841 INFO L87 Difference]: Start difference. First operand 46940 states and 72913 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:58:32,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:58:32,665 INFO L93 Difference]: Finished difference Result 158958 states and 252644 transitions. [2024-11-16 09:58:32,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:58:32,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 95 [2024-11-16 09:58:32,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:58:33,207 INFO L225 Difference]: With dead ends: 158958 [2024-11-16 09:58:33,208 INFO L226 Difference]: Without dead ends: 113801 [2024-11-16 09:58:33,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:58:33,303 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 983 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:58:33,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 1247 Invalid, 1545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:58:33,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113801 states.