/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 01:36:53,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 01:36:53,693 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 01:36:53,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 01:36:53,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 01:36:53,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 01:36:53,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 01:36:53,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 01:36:53,726 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 01:36:53,729 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 01:36:53,729 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 01:36:53,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 01:36:53,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 01:36:53,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 01:36:53,731 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 01:36:53,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 01:36:53,732 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 01:36:53,732 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 01:36:53,732 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 01:36:53,732 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 01:36:53,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 01:36:53,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 01:36:53,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 01:36:53,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 01:36:53,733 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 01:36:53,734 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 01:36:53,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 01:36:53,734 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 01:36:53,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 01:36:53,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 01:36:53,735 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 01:36:53,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 01:36:53,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 01:36:53,736 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 01:36:53,736 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 01:36:53,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 01:36:53,736 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 01:36:53,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 01:36:53,736 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 01:36:53,736 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 01:36:53,737 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 01:36:53,737 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 01:36:53,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 01:36:53,737 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 01:36:53,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 01:36:53,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 01:36:53,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 01:36:53,909 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 01:36:53,909 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 01:36:53,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c [2023-12-19 01:36:54,899 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 01:36:55,094 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 01:36:55,094 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c [2023-12-19 01:36:55,106 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1fc6ebc4/6188f3eb51414c539e44368ab7181f26/FLAG66f085b6f [2023-12-19 01:36:55,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1fc6ebc4/6188f3eb51414c539e44368ab7181f26 [2023-12-19 01:36:55,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 01:36:55,124 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 01:36:55,125 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 01:36:55,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 01:36:55,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 01:36:55,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ebba15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55, skipping insertion in model container [2023-12-19 01:36:55,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,190 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 01:36:55,319 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c[914,927] [2023-12-19 01:36:55,363 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c[7115,7128] [2023-12-19 01:36:55,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 01:36:55,448 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 01:36:55,457 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c[914,927] [2023-12-19 01:36:55,468 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c[7115,7128] [2023-12-19 01:36:55,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 01:36:55,532 INFO L206 MainTranslator]: Completed translation [2023-12-19 01:36:55,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55 WrapperNode [2023-12-19 01:36:55,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 01:36:55,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 01:36:55,534 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 01:36:55,534 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 01:36:55,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,604 INFO L138 Inliner]: procedures = 73, calls = 87, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 948 [2023-12-19 01:36:55,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 01:36:55,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 01:36:55,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 01:36:55,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 01:36:55,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,627 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,644 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 01:36:55,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,662 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,671 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,677 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 01:36:55,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 01:36:55,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 01:36:55,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 01:36:55,683 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (1/1) ... [2023-12-19 01:36:55,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 01:36:55,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:36:55,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 01:36:55,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 01:36:55,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 01:36:55,737 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-19 01:36:55,738 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-19 01:36:55,738 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-19 01:36:55,738 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-19 01:36:55,738 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-19 01:36:55,738 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-19 01:36:55,738 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-19 01:36:55,738 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-19 01:36:55,738 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-19 01:36:55,738 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-19 01:36:55,738 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-19 01:36:55,739 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-19 01:36:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-19 01:36:55,739 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-19 01:36:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-19 01:36:55,739 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-19 01:36:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-19 01:36:55,739 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-19 01:36:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-19 01:36:55,739 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-19 01:36:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-19 01:36:55,739 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-19 01:36:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 01:36:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-19 01:36:55,740 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-19 01:36:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-19 01:36:55,740 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-19 01:36:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 01:36:55,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 01:36:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-19 01:36:55,740 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-19 01:36:55,851 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 01:36:55,853 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 01:36:56,530 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 01:36:56,593 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 01:36:56,593 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-19 01:36:56,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:36:56 BoogieIcfgContainer [2023-12-19 01:36:56,594 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 01:36:56,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 01:36:56,596 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 01:36:56,598 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 01:36:56,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 01:36:55" (1/3) ... [2023-12-19 01:36:56,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685e5137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:36:56, skipping insertion in model container [2023-12-19 01:36:56,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:36:55" (2/3) ... [2023-12-19 01:36:56,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685e5137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:36:56, skipping insertion in model container [2023-12-19 01:36:56,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:36:56" (3/3) ... [2023-12-19 01:36:56,600 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.10.cil-2.c [2023-12-19 01:36:56,612 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 01:36:56,613 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-19 01:36:56,658 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 01:36:56,662 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@646a5653, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 01:36:56,663 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-19 01:36:56,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 393 states, 338 states have (on average 1.7071005917159763) internal successors, (577), 344 states have internal predecessors, (577), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-19 01:36:56,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 01:36:56,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:36:56,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:36:56,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:36:56,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:36:56,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1051938744, now seen corresponding path program 1 times [2023-12-19 01:36:56,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:36:56,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076187929] [2023-12-19 01:36:56,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:36:56,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:36:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:57,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:36:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:57,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:36:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:57,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:36:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:57,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:36:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:57,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:36:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:57,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:36:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:57,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:36:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:57,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:36:57,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:36:57,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076187929] [2023-12-19 01:36:57,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076187929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:36:57,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:36:57,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 01:36:57,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163148008] [2023-12-19 01:36:57,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:36:57,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 01:36:57,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:36:57,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 01:36:57,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 01:36:57,187 INFO L87 Difference]: Start difference. First operand has 393 states, 338 states have (on average 1.7071005917159763) internal successors, (577), 344 states have internal predecessors, (577), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 01:36:58,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:36:58,323 INFO L93 Difference]: Finished difference Result 888 states and 1461 transitions. [2023-12-19 01:36:58,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:36:58,325 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 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 58 [2023-12-19 01:36:58,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:36:58,343 INFO L225 Difference]: With dead ends: 888 [2023-12-19 01:36:58,343 INFO L226 Difference]: Without dead ends: 513 [2023-12-19 01:36:58,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-12-19 01:36:58,355 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1025 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:36:58,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 1568 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 01:36:58,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-12-19 01:36:58,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 476. [2023-12-19 01:36:58,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 403 states have (on average 1.5707196029776676) internal successors, (633), 409 states have internal predecessors, (633), 49 states have call successors, (49), 21 states have call predecessors, (49), 22 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2023-12-19 01:36:58,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 734 transitions. [2023-12-19 01:36:58,451 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 734 transitions. Word has length 58 [2023-12-19 01:36:58,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:36:58,452 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 734 transitions. [2023-12-19 01:36:58,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 01:36:58,452 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 734 transitions. [2023-12-19 01:36:58,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 01:36:58,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:36:58,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:36:58,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 01:36:58,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:36:58,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:36:58,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2143100791, now seen corresponding path program 1 times [2023-12-19 01:36:58,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:36:58,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407248232] [2023-12-19 01:36:58,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:36:58,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:36:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:58,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:36:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:58,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:36:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:58,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:36:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:58,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:36:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:58,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:36:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:58,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:36:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:58,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:36:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:58,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:36:58,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:36:58,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407248232] [2023-12-19 01:36:58,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407248232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:36:58,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:36:58,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 01:36:58,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462245801] [2023-12-19 01:36:58,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:36:58,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 01:36:58,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:36:58,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 01:36:58,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 01:36:58,601 INFO L87 Difference]: Start difference. First operand 476 states and 734 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 01:36:59,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:36:59,554 INFO L93 Difference]: Finished difference Result 796 states and 1184 transitions. [2023-12-19 01:36:59,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 01:36:59,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 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 58 [2023-12-19 01:36:59,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:36:59,564 INFO L225 Difference]: With dead ends: 796 [2023-12-19 01:36:59,564 INFO L226 Difference]: Without dead ends: 634 [2023-12-19 01:36:59,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-12-19 01:36:59,566 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1511 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1540 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:36:59,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1540 Valid, 1511 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1562 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:36:59,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2023-12-19 01:36:59,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 564. [2023-12-19 01:36:59,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 471 states have (on average 1.5477707006369428) internal successors, (729), 479 states have internal predecessors, (729), 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) [2023-12-19 01:36:59,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 860 transitions. [2023-12-19 01:36:59,615 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 860 transitions. Word has length 58 [2023-12-19 01:36:59,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:36:59,615 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 860 transitions. [2023-12-19 01:36:59,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 01:36:59,616 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 860 transitions. [2023-12-19 01:36:59,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 01:36:59,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:36:59,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:36:59,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 01:36:59,618 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:36:59,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:36:59,619 INFO L85 PathProgramCache]: Analyzing trace with hash -214828089, now seen corresponding path program 1 times [2023-12-19 01:36:59,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:36:59,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133943867] [2023-12-19 01:36:59,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:36:59,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:36:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:59,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:36:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:59,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:36:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:59,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:36:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:59,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:36:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:59,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:36:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:59,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:36:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:59,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:36:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:36:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:36:59,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:36:59,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133943867] [2023-12-19 01:36:59,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133943867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:36:59,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:36:59,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 01:36:59,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576583338] [2023-12-19 01:36:59,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:36:59,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 01:36:59,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:36:59,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 01:36:59,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:36:59,761 INFO L87 Difference]: Start difference. First operand 564 states and 860 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 01:37:00,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:00,693 INFO L93 Difference]: Finished difference Result 840 states and 1249 transitions. [2023-12-19 01:37:00,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 01:37:00,694 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-19 01:37:00,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:00,698 INFO L225 Difference]: With dead ends: 840 [2023-12-19 01:37:00,698 INFO L226 Difference]: Without dead ends: 596 [2023-12-19 01:37:00,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:37:00,701 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 541 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:00,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 2143 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 01:37:00,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2023-12-19 01:37:00,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 568. [2023-12-19 01:37:00,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 474 states have (on average 1.540084388185654) internal successors, (730), 482 states have internal predecessors, (730), 60 states have call successors, (60), 28 states have call predecessors, (60), 32 states have return successors, (72), 61 states have call predecessors, (72), 58 states have call successors, (72) [2023-12-19 01:37:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 862 transitions. [2023-12-19 01:37:00,741 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 862 transitions. Word has length 58 [2023-12-19 01:37:00,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:00,742 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 862 transitions. [2023-12-19 01:37:00,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 01:37:00,742 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 862 transitions. [2023-12-19 01:37:00,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 01:37:00,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:00,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:00,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 01:37:00,746 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:00,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:00,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1836155909, now seen corresponding path program 1 times [2023-12-19 01:37:00,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:00,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391743248] [2023-12-19 01:37:00,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:00,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:00,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:00,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:00,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:00,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:00,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:00,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:00,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:00,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:00,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391743248] [2023-12-19 01:37:00,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391743248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:00,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:00,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 01:37:00,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389010346] [2023-12-19 01:37:00,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:00,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 01:37:00,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:00,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 01:37:00,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:37:00,932 INFO L87 Difference]: Start difference. First operand 568 states and 862 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 01:37:01,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:01,825 INFO L93 Difference]: Finished difference Result 858 states and 1267 transitions. [2023-12-19 01:37:01,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 01:37:01,825 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-19 01:37:01,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:01,828 INFO L225 Difference]: With dead ends: 858 [2023-12-19 01:37:01,828 INFO L226 Difference]: Without dead ends: 610 [2023-12-19 01:37:01,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-19 01:37:01,829 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 807 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 1836 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:01,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1901 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1836 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:37:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-12-19 01:37:01,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 580. [2023-12-19 01:37:01,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 483 states have (on average 1.5300207039337475) internal successors, (739), 491 states have internal predecessors, (739), 60 states have call successors, (60), 28 states have call predecessors, (60), 35 states have return successors, (75), 64 states have call predecessors, (75), 58 states have call successors, (75) [2023-12-19 01:37:01,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 874 transitions. [2023-12-19 01:37:01,851 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 874 transitions. Word has length 58 [2023-12-19 01:37:01,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:01,852 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 874 transitions. [2023-12-19 01:37:01,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 01:37:01,852 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 874 transitions. [2023-12-19 01:37:01,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 01:37:01,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:01,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:01,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 01:37:01,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:01,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:01,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1898195523, now seen corresponding path program 1 times [2023-12-19 01:37:01,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:01,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549468376] [2023-12-19 01:37:01,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:01,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:01,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:01,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:01,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:01,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:01,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:01,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:01,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:01,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:01,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:01,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549468376] [2023-12-19 01:37:01,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549468376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:01,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:01,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 01:37:01,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984865685] [2023-12-19 01:37:01,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:01,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 01:37:01,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:01,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 01:37:01,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 01:37:01,978 INFO L87 Difference]: Start difference. First operand 580 states and 874 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 01:37:02,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:02,865 INFO L93 Difference]: Finished difference Result 936 states and 1349 transitions. [2023-12-19 01:37:02,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 01:37:02,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 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 58 [2023-12-19 01:37:02,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:02,868 INFO L225 Difference]: With dead ends: 936 [2023-12-19 01:37:02,869 INFO L226 Difference]: Without dead ends: 678 [2023-12-19 01:37:02,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2023-12-19 01:37:02,870 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 1481 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:02,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1344 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:37:02,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-12-19 01:37:02,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 590. [2023-12-19 01:37:02,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 491 states have (on average 1.5213849287169043) internal successors, (747), 499 states have internal predecessors, (747), 61 states have call successors, (61), 29 states have call predecessors, (61), 36 states have return successors, (74), 65 states have call predecessors, (74), 59 states have call successors, (74) [2023-12-19 01:37:02,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 882 transitions. [2023-12-19 01:37:02,896 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 882 transitions. Word has length 58 [2023-12-19 01:37:02,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:02,896 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 882 transitions. [2023-12-19 01:37:02,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 01:37:02,897 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 882 transitions. [2023-12-19 01:37:02,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 01:37:02,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:02,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:02,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 01:37:02,898 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:02,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:02,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1974069947, now seen corresponding path program 1 times [2023-12-19 01:37:02,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:02,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861998598] [2023-12-19 01:37:02,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:02,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:02,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:02,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:02,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:02,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:02,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:02,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:02,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:02,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:02,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861998598] [2023-12-19 01:37:02,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861998598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:02,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:02,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:02,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474449916] [2023-12-19 01:37:02,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:02,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:02,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:02,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:02,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:02,996 INFO L87 Difference]: Start difference. First operand 590 states and 882 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 01:37:03,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:03,580 INFO L93 Difference]: Finished difference Result 1172 states and 1669 transitions. [2023-12-19 01:37:03,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 01:37:03,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 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 58 [2023-12-19 01:37:03,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:03,584 INFO L225 Difference]: With dead ends: 1172 [2023-12-19 01:37:03,585 INFO L226 Difference]: Without dead ends: 905 [2023-12-19 01:37:03,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-12-19 01:37:03,586 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1173 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:03,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 1296 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 01:37:03,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2023-12-19 01:37:03,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 851. [2023-12-19 01:37:03,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 686 states have (on average 1.4650145772594751) internal successors, (1005), 701 states have internal predecessors, (1005), 96 states have call successors, (96), 51 states have call predecessors, (96), 67 states have return successors, (131), 105 states have call predecessors, (131), 94 states have call successors, (131) [2023-12-19 01:37:03,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1232 transitions. [2023-12-19 01:37:03,617 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1232 transitions. Word has length 58 [2023-12-19 01:37:03,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:03,617 INFO L495 AbstractCegarLoop]: Abstraction has 851 states and 1232 transitions. [2023-12-19 01:37:03,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 01:37:03,617 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1232 transitions. [2023-12-19 01:37:03,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-19 01:37:03,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:03,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:03,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 01:37:03,619 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:03,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:03,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1929630287, now seen corresponding path program 1 times [2023-12-19 01:37:03,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:03,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430772016] [2023-12-19 01:37:03,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:03,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:03,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:03,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:03,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:03,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:03,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:03,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:03,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:03,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:03,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430772016] [2023-12-19 01:37:03,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430772016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:03,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:03,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 01:37:03,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761342641] [2023-12-19 01:37:03,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:03,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 01:37:03,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:03,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 01:37:03,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:37:03,701 INFO L87 Difference]: Start difference. First operand 851 states and 1232 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 01:37:04,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:04,230 INFO L93 Difference]: Finished difference Result 1935 states and 2678 transitions. [2023-12-19 01:37:04,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 01:37:04,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2023-12-19 01:37:04,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:04,236 INFO L225 Difference]: With dead ends: 1935 [2023-12-19 01:37:04,236 INFO L226 Difference]: Without dead ends: 1416 [2023-12-19 01:37:04,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-19 01:37:04,240 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1474 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:04,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 848 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 01:37:04,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2023-12-19 01:37:04,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1262. [2023-12-19 01:37:04,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 997 states have (on average 1.4092276830491475) internal successors, (1405), 1019 states have internal predecessors, (1405), 145 states have call successors, (145), 93 states have call predecessors, (145), 118 states have return successors, (201), 156 states have call predecessors, (201), 143 states have call successors, (201) [2023-12-19 01:37:04,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1751 transitions. [2023-12-19 01:37:04,290 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1751 transitions. Word has length 59 [2023-12-19 01:37:04,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:04,290 INFO L495 AbstractCegarLoop]: Abstraction has 1262 states and 1751 transitions. [2023-12-19 01:37:04,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 01:37:04,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1751 transitions. [2023-12-19 01:37:04,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-19 01:37:04,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:04,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:04,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 01:37:04,292 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:04,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:04,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1176185545, now seen corresponding path program 1 times [2023-12-19 01:37:04,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:04,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689874065] [2023-12-19 01:37:04,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:04,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:04,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:04,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:04,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:04,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:04,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:04,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:04,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:04,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:04,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:04,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689874065] [2023-12-19 01:37:04,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689874065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:04,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:04,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 01:37:04,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110491976] [2023-12-19 01:37:04,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:04,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 01:37:04,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:04,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 01:37:04,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:37:04,361 INFO L87 Difference]: Start difference. First operand 1262 states and 1751 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 01:37:05,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:05,066 INFO L93 Difference]: Finished difference Result 3222 states and 4314 transitions. [2023-12-19 01:37:05,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 01:37:05,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2023-12-19 01:37:05,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:05,078 INFO L225 Difference]: With dead ends: 3222 [2023-12-19 01:37:05,079 INFO L226 Difference]: Without dead ends: 2262 [2023-12-19 01:37:05,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:37:05,083 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 1018 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:05,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1040 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 01:37:05,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2023-12-19 01:37:05,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2078. [2023-12-19 01:37:05,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 1615 states have (on average 1.3603715170278639) internal successors, (2197), 1643 states have internal predecessors, (2197), 239 states have call successors, (239), 179 states have call predecessors, (239), 222 states have return successors, (339), 262 states have call predecessors, (339), 237 states have call successors, (339) [2023-12-19 01:37:05,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 2775 transitions. [2023-12-19 01:37:05,172 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 2775 transitions. Word has length 60 [2023-12-19 01:37:05,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:05,172 INFO L495 AbstractCegarLoop]: Abstraction has 2078 states and 2775 transitions. [2023-12-19 01:37:05,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 01:37:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 2775 transitions. [2023-12-19 01:37:05,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-19 01:37:05,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:05,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:05,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 01:37:05,174 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:05,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:05,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1632430454, now seen corresponding path program 1 times [2023-12-19 01:37:05,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:05,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199184683] [2023-12-19 01:37:05,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:05,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:05,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:05,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:05,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:05,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:05,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:05,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:05,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199184683] [2023-12-19 01:37:05,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199184683] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:05,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:05,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 01:37:05,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646231904] [2023-12-19 01:37:05,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:05,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 01:37:05,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:05,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 01:37:05,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:37:05,238 INFO L87 Difference]: Start difference. First operand 2078 states and 2775 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 01:37:05,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:05,891 INFO L93 Difference]: Finished difference Result 4742 states and 6179 transitions. [2023-12-19 01:37:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 01:37:05,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2023-12-19 01:37:05,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:05,903 INFO L225 Difference]: With dead ends: 4742 [2023-12-19 01:37:05,904 INFO L226 Difference]: Without dead ends: 2986 [2023-12-19 01:37:05,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:37:05,908 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1458 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:05,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 857 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 01:37:05,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2023-12-19 01:37:06,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2744. [2023-12-19 01:37:06,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2744 states, 2117 states have (on average 1.339159187529523) internal successors, (2835), 2153 states have internal predecessors, (2835), 319 states have call successors, (319), 249 states have call predecessors, (319), 306 states have return successors, (448), 348 states have call predecessors, (448), 317 states have call successors, (448) [2023-12-19 01:37:06,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2744 states to 2744 states and 3602 transitions. [2023-12-19 01:37:06,038 INFO L78 Accepts]: Start accepts. Automaton has 2744 states and 3602 transitions. Word has length 66 [2023-12-19 01:37:06,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:06,039 INFO L495 AbstractCegarLoop]: Abstraction has 2744 states and 3602 transitions. [2023-12-19 01:37:06,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 01:37:06,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2744 states and 3602 transitions. [2023-12-19 01:37:06,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-19 01:37:06,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:06,043 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:06,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 01:37:06,044 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:06,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:06,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1451057087, now seen corresponding path program 1 times [2023-12-19 01:37:06,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:06,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028355248] [2023-12-19 01:37:06,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:06,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:06,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:06,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:06,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:06,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:06,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:06,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028355248] [2023-12-19 01:37:06,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028355248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:06,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:06,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:06,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870816200] [2023-12-19 01:37:06,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:06,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:06,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:06,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:06,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:06,125 INFO L87 Difference]: Start difference. First operand 2744 states and 3602 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-19 01:37:06,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:06,907 INFO L93 Difference]: Finished difference Result 3464 states and 4479 transitions. [2023-12-19 01:37:06,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 01:37:06,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2023-12-19 01:37:06,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:06,927 INFO L225 Difference]: With dead ends: 3464 [2023-12-19 01:37:06,927 INFO L226 Difference]: Without dead ends: 3461 [2023-12-19 01:37:06,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-12-19 01:37:06,930 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 2049 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:06,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 833 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 01:37:06,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3461 states. [2023-12-19 01:37:07,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3461 to 3194. [2023-12-19 01:37:07,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3194 states, 2458 states have (on average 1.3275020341741253) internal successors, (3263), 2499 states have internal predecessors, (3263), 369 states have call successors, (369), 293 states have call predecessors, (369), 365 states have return successors, (527), 408 states have call predecessors, (527), 368 states have call successors, (527) [2023-12-19 01:37:07,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3194 states to 3194 states and 4159 transitions. [2023-12-19 01:37:07,094 INFO L78 Accepts]: Start accepts. Automaton has 3194 states and 4159 transitions. Word has length 67 [2023-12-19 01:37:07,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:07,095 INFO L495 AbstractCegarLoop]: Abstraction has 3194 states and 4159 transitions. [2023-12-19 01:37:07,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-19 01:37:07,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3194 states and 4159 transitions. [2023-12-19 01:37:07,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-19 01:37:07,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:07,097 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:07,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 01:37:07,097 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:07,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:07,098 INFO L85 PathProgramCache]: Analyzing trace with hash -2034394336, now seen corresponding path program 1 times [2023-12-19 01:37:07,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:07,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359182544] [2023-12-19 01:37:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:07,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:07,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:07,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:07,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:07,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:07,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359182544] [2023-12-19 01:37:07,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359182544] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:37:07,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118100002] [2023-12-19 01:37:07,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:07,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:37:07,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:37:07,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:37:07,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 01:37:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:07,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-19 01:37:07,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:37:07,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:07,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 01:37:07,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:07,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118100002] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 01:37:07,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 01:37:07,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2023-12-19 01:37:07,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672539819] [2023-12-19 01:37:07,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 01:37:07,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 01:37:07,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:07,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 01:37:07,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-19 01:37:07,666 INFO L87 Difference]: Start difference. First operand 3194 states and 4159 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-19 01:37:09,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:09,281 INFO L93 Difference]: Finished difference Result 7261 states and 9271 transitions. [2023-12-19 01:37:09,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-19 01:37:09,281 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 68 [2023-12-19 01:37:09,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:09,309 INFO L225 Difference]: With dead ends: 7261 [2023-12-19 01:37:09,310 INFO L226 Difference]: Without dead ends: 7258 [2023-12-19 01:37:09,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2023-12-19 01:37:09,314 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 1915 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 2494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:09,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1985 Valid, 1917 Invalid, 2494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 01:37:09,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7258 states. [2023-12-19 01:37:09,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7258 to 4820. [2023-12-19 01:37:09,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4820 states, 3698 states have (on average 1.3182801514332072) internal successors, (4875), 3761 states have internal predecessors, (4875), 553 states have call successors, (553), 451 states have call predecessors, (553), 567 states have return successors, (805), 614 states have call predecessors, (805), 552 states have call successors, (805) [2023-12-19 01:37:09,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4820 states to 4820 states and 6233 transitions. [2023-12-19 01:37:09,620 INFO L78 Accepts]: Start accepts. Automaton has 4820 states and 6233 transitions. Word has length 68 [2023-12-19 01:37:09,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:09,620 INFO L495 AbstractCegarLoop]: Abstraction has 4820 states and 6233 transitions. [2023-12-19 01:37:09,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-19 01:37:09,621 INFO L276 IsEmpty]: Start isEmpty. Operand 4820 states and 6233 transitions. [2023-12-19 01:37:09,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-19 01:37:09,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:09,622 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:09,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 01:37:09,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 01:37:09,829 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:09,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:09,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1844962687, now seen corresponding path program 2 times [2023-12-19 01:37:09,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:09,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714914893] [2023-12-19 01:37:09,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:09,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:09,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:09,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:09,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:09,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:09,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:09,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:09,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:09,884 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:09,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:09,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714914893] [2023-12-19 01:37:09,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714914893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:09,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:09,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 01:37:09,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740926242] [2023-12-19 01:37:09,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:09,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 01:37:09,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:09,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 01:37:09,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:37:09,886 INFO L87 Difference]: Start difference. First operand 4820 states and 6233 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-19 01:37:10,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:10,672 INFO L93 Difference]: Finished difference Result 7276 states and 9380 transitions. [2023-12-19 01:37:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 01:37:10,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2023-12-19 01:37:10,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:10,683 INFO L225 Difference]: With dead ends: 7276 [2023-12-19 01:37:10,684 INFO L226 Difference]: Without dead ends: 3573 [2023-12-19 01:37:10,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-19 01:37:10,689 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1090 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:10,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 1174 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 01:37:10,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3573 states. [2023-12-19 01:37:10,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3573 to 3344. [2023-12-19 01:37:10,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3344 states, 2578 states have (on average 1.3060512024825446) internal successors, (3367), 2619 states have internal predecessors, (3367), 385 states have call successors, (385), 307 states have call predecessors, (385), 379 states have return successors, (531), 424 states have call predecessors, (531), 384 states have call successors, (531) [2023-12-19 01:37:10,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3344 states to 3344 states and 4283 transitions. [2023-12-19 01:37:10,869 INFO L78 Accepts]: Start accepts. Automaton has 3344 states and 4283 transitions. Word has length 71 [2023-12-19 01:37:10,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:10,870 INFO L495 AbstractCegarLoop]: Abstraction has 3344 states and 4283 transitions. [2023-12-19 01:37:10,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-19 01:37:10,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3344 states and 4283 transitions. [2023-12-19 01:37:10,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-19 01:37:10,873 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:10,873 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:10,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 01:37:10,873 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:10,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:10,874 INFO L85 PathProgramCache]: Analyzing trace with hash 568509296, now seen corresponding path program 1 times [2023-12-19 01:37:10,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:10,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073590498] [2023-12-19 01:37:10,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:10,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:10,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:10,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:10,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:10,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:10,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:10,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:10,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:10,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 01:37:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:10,974 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-19 01:37:10,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:10,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073590498] [2023-12-19 01:37:10,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073590498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:10,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:10,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 01:37:10,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715985913] [2023-12-19 01:37:10,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:10,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 01:37:10,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:10,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 01:37:10,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 01:37:10,976 INFO L87 Difference]: Start difference. First operand 3344 states and 4283 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 01:37:12,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:12,197 INFO L93 Difference]: Finished difference Result 9642 states and 12126 transitions. [2023-12-19 01:37:12,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 01:37:12,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2023-12-19 01:37:12,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:12,232 INFO L225 Difference]: With dead ends: 9642 [2023-12-19 01:37:12,232 INFO L226 Difference]: Without dead ends: 5405 [2023-12-19 01:37:12,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-12-19 01:37:12,243 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 1240 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:12,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 1662 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 01:37:12,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5405 states. [2023-12-19 01:37:12,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5405 to 5085. [2023-12-19 01:37:12,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5085 states, 3862 states have (on average 1.2729155877783531) internal successors, (4916), 3946 states have internal predecessors, (4916), 589 states have call successors, (589), 481 states have call predecessors, (589), 632 states have return successors, (913), 664 states have call predecessors, (913), 588 states have call successors, (913) [2023-12-19 01:37:12,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5085 states to 5085 states and 6418 transitions. [2023-12-19 01:37:12,581 INFO L78 Accepts]: Start accepts. Automaton has 5085 states and 6418 transitions. Word has length 76 [2023-12-19 01:37:12,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:12,581 INFO L495 AbstractCegarLoop]: Abstraction has 5085 states and 6418 transitions. [2023-12-19 01:37:12,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 01:37:12,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5085 states and 6418 transitions. [2023-12-19 01:37:12,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 01:37:12,584 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:12,585 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:12,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 01:37:12,585 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:12,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:12,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1786321226, now seen corresponding path program 1 times [2023-12-19 01:37:12,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:12,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618795523] [2023-12-19 01:37:12,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:12,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:12,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:12,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:12,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:12,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:12,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:12,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:12,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:12,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 01:37:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:12,704 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-19 01:37:12,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:12,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618795523] [2023-12-19 01:37:12,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618795523] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:12,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:12,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 01:37:12,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22533048] [2023-12-19 01:37:12,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:12,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 01:37:12,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:12,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 01:37:12,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:37:12,706 INFO L87 Difference]: Start difference. First operand 5085 states and 6418 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 01:37:13,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:13,959 INFO L93 Difference]: Finished difference Result 8756 states and 10926 transitions. [2023-12-19 01:37:13,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-19 01:37:13,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2023-12-19 01:37:13,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:13,973 INFO L225 Difference]: With dead ends: 8756 [2023-12-19 01:37:13,973 INFO L226 Difference]: Without dead ends: 4576 [2023-12-19 01:37:13,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2023-12-19 01:37:13,982 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 1728 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 1644 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1772 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 1644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:13,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1772 Valid, 1669 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 1644 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-19 01:37:13,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4576 states. [2023-12-19 01:37:14,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4576 to 4242. [2023-12-19 01:37:14,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4242 states, 3232 states have (on average 1.2673267326732673) internal successors, (4096), 3298 states have internal predecessors, (4096), 490 states have call successors, (490), 396 states have call predecessors, (490), 518 states have return successors, (691), 554 states have call predecessors, (691), 489 states have call successors, (691) [2023-12-19 01:37:14,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4242 states to 4242 states and 5277 transitions. [2023-12-19 01:37:14,247 INFO L78 Accepts]: Start accepts. Automaton has 4242 states and 5277 transitions. Word has length 86 [2023-12-19 01:37:14,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:14,248 INFO L495 AbstractCegarLoop]: Abstraction has 4242 states and 5277 transitions. [2023-12-19 01:37:14,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 01:37:14,248 INFO L276 IsEmpty]: Start isEmpty. Operand 4242 states and 5277 transitions. [2023-12-19 01:37:14,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-19 01:37:14,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:14,253 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:14,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 01:37:14,253 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:14,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:14,253 INFO L85 PathProgramCache]: Analyzing trace with hash -814915802, now seen corresponding path program 1 times [2023-12-19 01:37:14,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:14,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727547525] [2023-12-19 01:37:14,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:14,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 01:37:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 01:37:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 01:37:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 01:37:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-19 01:37:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-19 01:37:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-19 01:37:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,393 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-19 01:37:14,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:14,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727547525] [2023-12-19 01:37:14,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727547525] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:37:14,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870949929] [2023-12-19 01:37:14,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:14,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:37:14,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:37:14,395 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:37:14,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 01:37:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:14,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 01:37:14,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:37:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-19 01:37:14,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:37:14,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870949929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:14,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:37:14,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2023-12-19 01:37:14,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779355100] [2023-12-19 01:37:14,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:14,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 01:37:14,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:14,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 01:37:14,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-19 01:37:14,563 INFO L87 Difference]: Start difference. First operand 4242 states and 5277 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 01:37:14,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:14,764 INFO L93 Difference]: Finished difference Result 6214 states and 7706 transitions. [2023-12-19 01:37:14,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 01:37:14,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2023-12-19 01:37:14,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:14,771 INFO L225 Difference]: With dead ends: 6214 [2023-12-19 01:37:14,771 INFO L226 Difference]: Without dead ends: 2298 [2023-12-19 01:37:14,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-12-19 01:37:14,777 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 32 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:14,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2774 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 01:37:14,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2023-12-19 01:37:14,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 2173. [2023-12-19 01:37:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 1740 states have (on average 1.285632183908046) internal successors, (2237), 1755 states have internal predecessors, (2237), 214 states have call successors, (214), 162 states have call predecessors, (214), 217 states have return successors, (298), 256 states have call predecessors, (298), 213 states have call successors, (298) [2023-12-19 01:37:14,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 2749 transitions. [2023-12-19 01:37:14,876 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 2749 transitions. Word has length 131 [2023-12-19 01:37:14,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:14,877 INFO L495 AbstractCegarLoop]: Abstraction has 2173 states and 2749 transitions. [2023-12-19 01:37:14,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 01:37:14,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 2749 transitions. [2023-12-19 01:37:14,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-19 01:37:14,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:14,880 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:14,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 01:37:15,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-19 01:37:15,087 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:15,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:15,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1140442716, now seen corresponding path program 1 times [2023-12-19 01:37:15,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:15,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270544722] [2023-12-19 01:37:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:15,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 01:37:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 01:37:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 01:37:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:37:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 01:37:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 01:37:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-19 01:37:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,149 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-12-19 01:37:15,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:15,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270544722] [2023-12-19 01:37:15,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270544722] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:15,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:15,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 01:37:15,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362625125] [2023-12-19 01:37:15,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:15,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 01:37:15,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:15,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 01:37:15,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:37:15,151 INFO L87 Difference]: Start difference. First operand 2173 states and 2749 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 01:37:15,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:15,720 INFO L93 Difference]: Finished difference Result 2238 states and 2817 transitions. [2023-12-19 01:37:15,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 01:37:15,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 133 [2023-12-19 01:37:15,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:15,732 INFO L225 Difference]: With dead ends: 2238 [2023-12-19 01:37:15,732 INFO L226 Difference]: Without dead ends: 1836 [2023-12-19 01:37:15,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-19 01:37:15,736 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 896 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:15,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 995 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 01:37:15,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2023-12-19 01:37:15,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1774. [2023-12-19 01:37:15,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1774 states, 1437 states have (on average 1.3041057759220598) internal successors, (1874), 1449 states have internal predecessors, (1874), 168 states have call successors, (168), 122 states have call predecessors, (168), 167 states have return successors, (234), 203 states have call predecessors, (234), 167 states have call successors, (234) [2023-12-19 01:37:15,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2276 transitions. [2023-12-19 01:37:15,815 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2276 transitions. Word has length 133 [2023-12-19 01:37:15,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:15,816 INFO L495 AbstractCegarLoop]: Abstraction has 1774 states and 2276 transitions. [2023-12-19 01:37:15,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 01:37:15,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2276 transitions. [2023-12-19 01:37:15,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 01:37:15,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:15,819 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:15,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 01:37:15,819 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:15,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:15,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1455665359, now seen corresponding path program 1 times [2023-12-19 01:37:15,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:15,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214837502] [2023-12-19 01:37:15,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:15,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 01:37:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 01:37:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 01:37:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 01:37:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 01:37:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-19 01:37:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-19 01:37:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:15,925 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-19 01:37:15,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:15,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214837502] [2023-12-19 01:37:15,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214837502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:15,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:15,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:15,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727711892] [2023-12-19 01:37:15,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:15,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:15,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:15,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:15,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:15,927 INFO L87 Difference]: Start difference. First operand 1774 states and 2276 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 01:37:16,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:16,614 INFO L93 Difference]: Finished difference Result 3121 states and 3945 transitions. [2023-12-19 01:37:16,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 01:37:16,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 145 [2023-12-19 01:37:16,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:16,619 INFO L225 Difference]: With dead ends: 3121 [2023-12-19 01:37:16,620 INFO L226 Difference]: Without dead ends: 1881 [2023-12-19 01:37:16,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:37:16,622 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 568 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:16,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1636 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 01:37:16,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2023-12-19 01:37:16,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 1699. [2023-12-19 01:37:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1384 states have (on average 1.3041907514450868) internal successors, (1805), 1397 states have internal predecessors, (1805), 159 states have call successors, (159), 117 states have call predecessors, (159), 154 states have return successors, (218), 185 states have call predecessors, (218), 158 states have call successors, (218) [2023-12-19 01:37:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2182 transitions. [2023-12-19 01:37:16,715 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2182 transitions. Word has length 145 [2023-12-19 01:37:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:16,715 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2182 transitions. [2023-12-19 01:37:16,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 01:37:16,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2182 transitions. [2023-12-19 01:37:16,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-19 01:37:16,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:16,717 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:16,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 01:37:16,717 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:16,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:16,718 INFO L85 PathProgramCache]: Analyzing trace with hash 210967997, now seen corresponding path program 1 times [2023-12-19 01:37:16,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:16,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762483151] [2023-12-19 01:37:16,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:16,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:37:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:37:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:37:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:37:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 01:37:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 01:37:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 01:37:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 01:37:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:37:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:37:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 01:37:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 01:37:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-19 01:37:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:16,889 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-19 01:37:16,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:16,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762483151] [2023-12-19 01:37:16,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762483151] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:37:16,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434628431] [2023-12-19 01:37:16,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:16,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:37:16,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:37:16,891 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:37:16,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 01:37:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:17,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 01:37:17,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:37:17,124 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 01:37:17,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 01:37:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-12-19 01:37:17,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434628431] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 01:37:17,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 01:37:17,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2023-12-19 01:37:17,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622395326] [2023-12-19 01:37:17,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 01:37:17,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 01:37:17,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:17,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 01:37:17,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-12-19 01:37:17,284 INFO L87 Difference]: Start difference. First operand 1699 states and 2182 transitions. Second operand has 14 states, 14 states have (on average 16.0) internal successors, (224), 12 states have internal predecessors, (224), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-19 01:37:18,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:18,526 INFO L93 Difference]: Finished difference Result 3506 states and 4470 transitions. [2023-12-19 01:37:18,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-19 01:37:18,527 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.0) internal successors, (224), 12 states have internal predecessors, (224), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) Word has length 147 [2023-12-19 01:37:18,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:18,532 INFO L225 Difference]: With dead ends: 3506 [2023-12-19 01:37:18,533 INFO L226 Difference]: Without dead ends: 2204 [2023-12-19 01:37:18,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 327 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2023-12-19 01:37:18,535 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 1905 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1935 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:18,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1935 Valid, 1732 Invalid, 2134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-19 01:37:18,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2023-12-19 01:37:18,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2060. [2023-12-19 01:37:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2060 states, 1633 states have (on average 1.273116962645438) internal successors, (2079), 1654 states have internal predecessors, (2079), 213 states have call successors, (213), 167 states have call predecessors, (213), 212 states have return successors, (332), 239 states have call predecessors, (332), 212 states have call successors, (332) [2023-12-19 01:37:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2624 transitions. [2023-12-19 01:37:18,659 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2624 transitions. Word has length 147 [2023-12-19 01:37:18,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:18,659 INFO L495 AbstractCegarLoop]: Abstraction has 2060 states and 2624 transitions. [2023-12-19 01:37:18,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.0) internal successors, (224), 12 states have internal predecessors, (224), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-19 01:37:18,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2624 transitions. [2023-12-19 01:37:18,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:18,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:18,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:18,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 01:37:18,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-19 01:37:18,869 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:18,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:18,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1894679752, now seen corresponding path program 1 times [2023-12-19 01:37:18,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:18,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124302855] [2023-12-19 01:37:18,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:18,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:18,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:18,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:18,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:19,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:19,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:19,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:19,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:19,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124302855] [2023-12-19 01:37:19,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124302855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:19,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:19,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 01:37:19,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253065737] [2023-12-19 01:37:19,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:19,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 01:37:19,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:19,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 01:37:19,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:37:19,013 INFO L87 Difference]: Start difference. First operand 2060 states and 2624 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:20,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:20,510 INFO L93 Difference]: Finished difference Result 2462 states and 3293 transitions. [2023-12-19 01:37:20,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 01:37:20,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-19 01:37:20,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:20,515 INFO L225 Difference]: With dead ends: 2462 [2023-12-19 01:37:20,516 INFO L226 Difference]: Without dead ends: 2170 [2023-12-19 01:37:20,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:37:20,517 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 925 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:20,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 744 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 01:37:20,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2023-12-19 01:37:20,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2060. [2023-12-19 01:37:20,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2060 states, 1633 states have (on average 1.2725045927740355) internal successors, (2078), 1654 states have internal predecessors, (2078), 213 states have call successors, (213), 167 states have call predecessors, (213), 212 states have return successors, (332), 239 states have call predecessors, (332), 212 states have call successors, (332) [2023-12-19 01:37:20,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2623 transitions. [2023-12-19 01:37:20,691 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2623 transitions. Word has length 141 [2023-12-19 01:37:20,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:20,691 INFO L495 AbstractCegarLoop]: Abstraction has 2060 states and 2623 transitions. [2023-12-19 01:37:20,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:20,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2623 transitions. [2023-12-19 01:37:20,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:20,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:20,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:20,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 01:37:20,695 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:20,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:20,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1349807178, now seen corresponding path program 1 times [2023-12-19 01:37:20,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:20,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717583421] [2023-12-19 01:37:20,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:20,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:20,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:20,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:20,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:20,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:20,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:20,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:20,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717583421] [2023-12-19 01:37:20,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717583421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:20,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:20,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 01:37:20,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696388954] [2023-12-19 01:37:20,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:20,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 01:37:20,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:20,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 01:37:20,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:37:20,844 INFO L87 Difference]: Start difference. First operand 2060 states and 2623 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:23,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:23,045 INFO L93 Difference]: Finished difference Result 2863 states and 3961 transitions. [2023-12-19 01:37:23,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 01:37:23,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-19 01:37:23,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:23,051 INFO L225 Difference]: With dead ends: 2863 [2023-12-19 01:37:23,051 INFO L226 Difference]: Without dead ends: 2579 [2023-12-19 01:37:23,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:37:23,052 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1458 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 2129 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 2129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:23,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1094 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 2129 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-19 01:37:23,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2579 states. [2023-12-19 01:37:23,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2579 to 2360. [2023-12-19 01:37:23,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2360 states, 1907 states have (on average 1.3256423702149973) internal successors, (2528), 1929 states have internal predecessors, (2528), 232 states have call successors, (232), 173 states have call predecessors, (232), 219 states have return successors, (354), 258 states have call predecessors, (354), 231 states have call successors, (354) [2023-12-19 01:37:23,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 3114 transitions. [2023-12-19 01:37:23,226 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 3114 transitions. Word has length 141 [2023-12-19 01:37:23,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:23,227 INFO L495 AbstractCegarLoop]: Abstraction has 2360 states and 3114 transitions. [2023-12-19 01:37:23,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 3114 transitions. [2023-12-19 01:37:23,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:23,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:23,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:23,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 01:37:23,231 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:23,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:23,232 INFO L85 PathProgramCache]: Analyzing trace with hash -950615946, now seen corresponding path program 1 times [2023-12-19 01:37:23,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:23,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146225482] [2023-12-19 01:37:23,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:23,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:23,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:23,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:23,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:23,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:23,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:23,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146225482] [2023-12-19 01:37:23,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146225482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:23,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:23,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:23,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766110288] [2023-12-19 01:37:23,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:23,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:23,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:23,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:23,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:23,410 INFO L87 Difference]: Start difference. First operand 2360 states and 3114 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:26,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:26,426 INFO L93 Difference]: Finished difference Result 3588 states and 5159 transitions. [2023-12-19 01:37:26,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:37:26,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:37:26,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:26,434 INFO L225 Difference]: With dead ends: 3588 [2023-12-19 01:37:26,434 INFO L226 Difference]: Without dead ends: 3004 [2023-12-19 01:37:26,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:37:26,437 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 1485 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 3434 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 3525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:26,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1952 Invalid, 3525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3434 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-19 01:37:26,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2023-12-19 01:37:26,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 2637. [2023-12-19 01:37:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2637 states, 2158 states have (on average 1.3586654309545876) internal successors, (2932), 2181 states have internal predecessors, (2932), 251 states have call successors, (251), 179 states have call predecessors, (251), 226 states have return successors, (375), 278 states have call predecessors, (375), 250 states have call successors, (375) [2023-12-19 01:37:26,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 3558 transitions. [2023-12-19 01:37:26,624 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 3558 transitions. Word has length 141 [2023-12-19 01:37:26,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:26,624 INFO L495 AbstractCegarLoop]: Abstraction has 2637 states and 3558 transitions. [2023-12-19 01:37:26,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:26,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 3558 transitions. [2023-12-19 01:37:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:26,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:26,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:26,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 01:37:26,627 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:26,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:26,628 INFO L85 PathProgramCache]: Analyzing trace with hash -462568840, now seen corresponding path program 1 times [2023-12-19 01:37:26,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:26,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816643118] [2023-12-19 01:37:26,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:26,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:26,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:26,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:26,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:26,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:26,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:26,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:26,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:26,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816643118] [2023-12-19 01:37:26,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816643118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:26,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:26,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:26,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142237321] [2023-12-19 01:37:26,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:26,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:26,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:26,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:26,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:26,791 INFO L87 Difference]: Start difference. First operand 2637 states and 3558 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:29,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:29,774 INFO L93 Difference]: Finished difference Result 4650 states and 6903 transitions. [2023-12-19 01:37:29,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:37:29,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:37:29,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:29,787 INFO L225 Difference]: With dead ends: 4650 [2023-12-19 01:37:29,794 INFO L226 Difference]: Without dead ends: 3789 [2023-12-19 01:37:29,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:37:29,804 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 1483 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 3430 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 3523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:29,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1950 Invalid, 3523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3430 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-19 01:37:29,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2023-12-19 01:37:30,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3192. [2023-12-19 01:37:30,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 2661 states have (on average 1.4058624577226606) internal successors, (3741), 2686 states have internal predecessors, (3741), 289 states have call successors, (289), 191 states have call predecessors, (289), 240 states have return successors, (421), 318 states have call predecessors, (421), 288 states have call successors, (421) [2023-12-19 01:37:30,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 4451 transitions. [2023-12-19 01:37:30,024 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 4451 transitions. Word has length 141 [2023-12-19 01:37:30,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:30,024 INFO L495 AbstractCegarLoop]: Abstraction has 3192 states and 4451 transitions. [2023-12-19 01:37:30,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:30,024 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 4451 transitions. [2023-12-19 01:37:30,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:30,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:30,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:30,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 01:37:30,029 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:30,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:30,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1555204042, now seen corresponding path program 1 times [2023-12-19 01:37:30,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:30,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377131869] [2023-12-19 01:37:30,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:30,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:30,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:30,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:30,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:30,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:30,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:30,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:30,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:30,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377131869] [2023-12-19 01:37:30,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377131869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:30,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:30,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:30,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200663747] [2023-12-19 01:37:30,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:30,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:30,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:30,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:30,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:30,211 INFO L87 Difference]: Start difference. First operand 3192 states and 4451 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:31,934 INFO L93 Difference]: Finished difference Result 5195 states and 7789 transitions. [2023-12-19 01:37:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 01:37:31,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:37:31,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:31,943 INFO L225 Difference]: With dead ends: 5195 [2023-12-19 01:37:31,943 INFO L226 Difference]: Without dead ends: 3779 [2023-12-19 01:37:31,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:37:31,947 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1195 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:31,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 1111 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-19 01:37:31,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2023-12-19 01:37:32,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 3192. [2023-12-19 01:37:32,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 2661 states have (on average 1.4039834648628335) internal successors, (3736), 2686 states have internal predecessors, (3736), 289 states have call successors, (289), 191 states have call predecessors, (289), 240 states have return successors, (421), 318 states have call predecessors, (421), 288 states have call successors, (421) [2023-12-19 01:37:32,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 4446 transitions. [2023-12-19 01:37:32,160 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 4446 transitions. Word has length 141 [2023-12-19 01:37:32,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:32,160 INFO L495 AbstractCegarLoop]: Abstraction has 3192 states and 4446 transitions. [2023-12-19 01:37:32,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:32,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 4446 transitions. [2023-12-19 01:37:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:32,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:32,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:32,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-19 01:37:32,164 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:32,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:32,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1457590968, now seen corresponding path program 1 times [2023-12-19 01:37:32,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:32,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851007727] [2023-12-19 01:37:32,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:32,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:32,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:32,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:32,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:32,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:32,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:32,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:32,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851007727] [2023-12-19 01:37:32,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851007727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:32,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:32,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:32,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652506539] [2023-12-19 01:37:32,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:32,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:32,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:32,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:32,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:32,323 INFO L87 Difference]: Start difference. First operand 3192 states and 4446 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:34,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:34,030 INFO L93 Difference]: Finished difference Result 5189 states and 7763 transitions. [2023-12-19 01:37:34,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 01:37:34,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:37:34,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:34,046 INFO L225 Difference]: With dead ends: 5189 [2023-12-19 01:37:34,046 INFO L226 Difference]: Without dead ends: 3773 [2023-12-19 01:37:34,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:37:34,055 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1119 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 1890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:34,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 1112 Invalid, 1890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 01:37:34,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2023-12-19 01:37:34,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3192. [2023-12-19 01:37:34,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 2661 states have (on average 1.4021044720030065) internal successors, (3731), 2686 states have internal predecessors, (3731), 289 states have call successors, (289), 191 states have call predecessors, (289), 240 states have return successors, (421), 318 states have call predecessors, (421), 288 states have call successors, (421) [2023-12-19 01:37:34,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 4441 transitions. [2023-12-19 01:37:34,297 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 4441 transitions. Word has length 141 [2023-12-19 01:37:34,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:34,297 INFO L495 AbstractCegarLoop]: Abstraction has 3192 states and 4441 transitions. [2023-12-19 01:37:34,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:34,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 4441 transitions. [2023-12-19 01:37:34,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:34,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:34,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:34,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-19 01:37:34,301 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:34,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:34,301 INFO L85 PathProgramCache]: Analyzing trace with hash -384884746, now seen corresponding path program 1 times [2023-12-19 01:37:34,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:34,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688686249] [2023-12-19 01:37:34,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:34,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:34,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:34,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:34,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:34,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:34,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:34,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688686249] [2023-12-19 01:37:34,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688686249] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:34,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:34,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:34,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559518928] [2023-12-19 01:37:34,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:34,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:34,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:34,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:34,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:34,442 INFO L87 Difference]: Start difference. First operand 3192 states and 4441 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:36,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:36,041 INFO L93 Difference]: Finished difference Result 5182 states and 7735 transitions. [2023-12-19 01:37:36,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 01:37:36,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:37:36,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:36,049 INFO L225 Difference]: With dead ends: 5182 [2023-12-19 01:37:36,050 INFO L226 Difference]: Without dead ends: 3766 [2023-12-19 01:37:36,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:37:36,053 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1122 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:36,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 1112 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 01:37:36,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2023-12-19 01:37:36,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 3192. [2023-12-19 01:37:36,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 2661 states have (on average 1.4002254791431792) internal successors, (3726), 2686 states have internal predecessors, (3726), 289 states have call successors, (289), 191 states have call predecessors, (289), 240 states have return successors, (421), 318 states have call predecessors, (421), 288 states have call successors, (421) [2023-12-19 01:37:36,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 4436 transitions. [2023-12-19 01:37:36,361 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 4436 transitions. Word has length 141 [2023-12-19 01:37:36,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:36,362 INFO L495 AbstractCegarLoop]: Abstraction has 3192 states and 4436 transitions. [2023-12-19 01:37:36,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:36,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 4436 transitions. [2023-12-19 01:37:36,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:36,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:36,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:36,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-19 01:37:36,366 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:36,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:36,366 INFO L85 PathProgramCache]: Analyzing trace with hash -2106887432, now seen corresponding path program 1 times [2023-12-19 01:37:36,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:36,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485536180] [2023-12-19 01:37:36,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:36,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:36,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:36,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:36,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:36,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:36,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:36,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:36,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485536180] [2023-12-19 01:37:36,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485536180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:36,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:36,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:36,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334859123] [2023-12-19 01:37:36,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:36,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:36,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:36,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:36,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:36,527 INFO L87 Difference]: Start difference. First operand 3192 states and 4436 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:38,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:38,160 INFO L93 Difference]: Finished difference Result 5170 states and 7697 transitions. [2023-12-19 01:37:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 01:37:38,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:37:38,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:38,177 INFO L225 Difference]: With dead ends: 5170 [2023-12-19 01:37:38,178 INFO L226 Difference]: Without dead ends: 3754 [2023-12-19 01:37:38,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:37:38,182 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1119 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:38,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 1112 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 01:37:38,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2023-12-19 01:37:38,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3192. [2023-12-19 01:37:38,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 2661 states have (on average 1.3983464862833521) internal successors, (3721), 2686 states have internal predecessors, (3721), 289 states have call successors, (289), 191 states have call predecessors, (289), 240 states have return successors, (421), 318 states have call predecessors, (421), 288 states have call successors, (421) [2023-12-19 01:37:38,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 4431 transitions. [2023-12-19 01:37:38,423 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 4431 transitions. Word has length 141 [2023-12-19 01:37:38,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:38,424 INFO L495 AbstractCegarLoop]: Abstraction has 3192 states and 4431 transitions. [2023-12-19 01:37:38,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:38,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 4431 transitions. [2023-12-19 01:37:38,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:38,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:38,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:38,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-19 01:37:38,459 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:38,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash -177955206, now seen corresponding path program 1 times [2023-12-19 01:37:38,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:38,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667086144] [2023-12-19 01:37:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:38,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:38,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:38,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:38,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:38,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:38,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:38,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:38,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667086144] [2023-12-19 01:37:38,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667086144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:38,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:38,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 01:37:38,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743498910] [2023-12-19 01:37:38,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:38,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 01:37:38,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:38,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 01:37:38,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:37:38,676 INFO L87 Difference]: Start difference. First operand 3192 states and 4431 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 7 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:42,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:42,735 INFO L93 Difference]: Finished difference Result 7138 states and 10924 transitions. [2023-12-19 01:37:42,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-19 01:37:42,736 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 7 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-19 01:37:42,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:42,751 INFO L225 Difference]: With dead ends: 7138 [2023-12-19 01:37:42,752 INFO L226 Difference]: Without dead ends: 5722 [2023-12-19 01:37:42,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2023-12-19 01:37:42,759 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 1831 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 4609 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 4706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 4609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:42,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 2786 Invalid, 4706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 4609 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-19 01:37:42,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5722 states. [2023-12-19 01:37:43,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5722 to 4343. [2023-12-19 01:37:43,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4343 states, 3708 states have (on average 1.4487594390507013) internal successors, (5372), 3737 states have internal predecessors, (5372), 365 states have call successors, (365), 215 states have call predecessors, (365), 268 states have return successors, (519), 398 states have call predecessors, (519), 364 states have call successors, (519) [2023-12-19 01:37:43,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 6256 transitions. [2023-12-19 01:37:43,096 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 6256 transitions. Word has length 141 [2023-12-19 01:37:43,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:43,096 INFO L495 AbstractCegarLoop]: Abstraction has 4343 states and 6256 transitions. [2023-12-19 01:37:43,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 7 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:43,096 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 6256 transitions. [2023-12-19 01:37:43,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:43,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:43,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:43,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-19 01:37:43,100 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:43,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1146180038, now seen corresponding path program 1 times [2023-12-19 01:37:43,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:43,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010739436] [2023-12-19 01:37:43,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:43,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:43,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:43,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:43,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:43,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:43,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:43,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:43,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010739436] [2023-12-19 01:37:43,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010739436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:43,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:43,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:43,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941942772] [2023-12-19 01:37:43,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:43,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:43,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:43,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:43,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:43,267 INFO L87 Difference]: Start difference. First operand 4343 states and 6256 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:46,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:46,433 INFO L93 Difference]: Finished difference Result 10807 states and 16739 transitions. [2023-12-19 01:37:46,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:37:46,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:37:46,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:46,452 INFO L225 Difference]: With dead ends: 10807 [2023-12-19 01:37:46,453 INFO L226 Difference]: Without dead ends: 8240 [2023-12-19 01:37:46,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:37:46,459 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 1453 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 3287 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 3380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:46,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1950 Invalid, 3380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3287 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-19 01:37:46,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8240 states. [2023-12-19 01:37:46,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8240 to 6622. [2023-12-19 01:37:46,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6622 states, 5779 states have (on average 1.4957605121993425) internal successors, (8644), 5816 states have internal predecessors, (8644), 517 states have call successors, (517), 263 states have call predecessors, (517), 324 states have return successors, (733), 558 states have call predecessors, (733), 516 states have call successors, (733) [2023-12-19 01:37:46,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6622 states to 6622 states and 9894 transitions. [2023-12-19 01:37:46,867 INFO L78 Accepts]: Start accepts. Automaton has 6622 states and 9894 transitions. Word has length 141 [2023-12-19 01:37:46,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:46,868 INFO L495 AbstractCegarLoop]: Abstraction has 6622 states and 9894 transitions. [2023-12-19 01:37:46,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:46,868 INFO L276 IsEmpty]: Start isEmpty. Operand 6622 states and 9894 transitions. [2023-12-19 01:37:46,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:46,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:46,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:46,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-19 01:37:46,873 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:46,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:46,873 INFO L85 PathProgramCache]: Analyzing trace with hash 580964924, now seen corresponding path program 1 times [2023-12-19 01:37:46,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:46,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898731444] [2023-12-19 01:37:46,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:46,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:46,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:46,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:47,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:47,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:47,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:47,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:47,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898731444] [2023-12-19 01:37:47,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898731444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:47,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:47,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:47,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611612141] [2023-12-19 01:37:47,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:47,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:47,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:47,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:47,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:47,012 INFO L87 Difference]: Start difference. First operand 6622 states and 9894 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:50,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:50,318 INFO L93 Difference]: Finished difference Result 19016 states and 30019 transitions. [2023-12-19 01:37:50,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:37:50,318 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:37:50,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:50,349 INFO L225 Difference]: With dead ends: 19016 [2023-12-19 01:37:50,349 INFO L226 Difference]: Without dead ends: 14170 [2023-12-19 01:37:50,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:37:50,361 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 1452 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 3274 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 3367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:50,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 1950 Invalid, 3367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3274 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-19 01:37:50,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14170 states. [2023-12-19 01:37:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14170 to 11195. [2023-12-19 01:37:50,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11195 states, 9936 states have (on average 1.5307971014492754) internal successors, (15210), 9989 states have internal predecessors, (15210), 821 states have call successors, (821), 359 states have call predecessors, (821), 436 states have return successors, (1215), 878 states have call predecessors, (1215), 820 states have call successors, (1215) [2023-12-19 01:37:51,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11195 states to 11195 states and 17246 transitions. [2023-12-19 01:37:51,017 INFO L78 Accepts]: Start accepts. Automaton has 11195 states and 17246 transitions. Word has length 141 [2023-12-19 01:37:51,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:51,017 INFO L495 AbstractCegarLoop]: Abstraction has 11195 states and 17246 transitions. [2023-12-19 01:37:51,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:51,017 INFO L276 IsEmpty]: Start isEmpty. Operand 11195 states and 17246 transitions. [2023-12-19 01:37:51,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:51,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:51,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:51,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-19 01:37:51,026 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:51,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:51,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1052321274, now seen corresponding path program 1 times [2023-12-19 01:37:51,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:51,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910097963] [2023-12-19 01:37:51,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:51,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:51,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:51,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:51,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:51,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:51,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:51,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:51,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:51,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910097963] [2023-12-19 01:37:51,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910097963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:51,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:51,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:51,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804576533] [2023-12-19 01:37:51,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:51,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:51,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:51,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:51,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:51,209 INFO L87 Difference]: Start difference. First operand 11195 states and 17246 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:55,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:37:55,154 INFO L93 Difference]: Finished difference Result 39659 states and 63527 transitions. [2023-12-19 01:37:55,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 01:37:55,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:37:55,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:37:55,224 INFO L225 Difference]: With dead ends: 39659 [2023-12-19 01:37:55,224 INFO L226 Difference]: Without dead ends: 30240 [2023-12-19 01:37:55,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 01:37:55,242 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 1625 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 3376 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 3501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 3376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:37:55,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 1354 Invalid, 3501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 3376 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 01:37:55,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30240 states. [2023-12-19 01:37:56,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30240 to 20308. [2023-12-19 01:37:56,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20308 states, 18249 states have (on average 1.5538385664967944) internal successors, (28356), 18334 states have internal predecessors, (28356), 1397 states have call successors, (1397), 551 states have call predecessors, (1397), 660 states have return successors, (2309), 1486 states have call predecessors, (2309), 1396 states have call successors, (2309) [2023-12-19 01:37:56,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20308 states to 20308 states and 32062 transitions. [2023-12-19 01:37:56,471 INFO L78 Accepts]: Start accepts. Automaton has 20308 states and 32062 transitions. Word has length 141 [2023-12-19 01:37:56,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:37:56,471 INFO L495 AbstractCegarLoop]: Abstraction has 20308 states and 32062 transitions. [2023-12-19 01:37:56,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:37:56,472 INFO L276 IsEmpty]: Start isEmpty. Operand 20308 states and 32062 transitions. [2023-12-19 01:37:56,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:37:56,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:37:56,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:37:56,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-19 01:37:56,483 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:37:56,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:37:56,483 INFO L85 PathProgramCache]: Analyzing trace with hash -595041668, now seen corresponding path program 1 times [2023-12-19 01:37:56,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:37:56,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500504165] [2023-12-19 01:37:56,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:37:56,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:37:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:56,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:37:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:56,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:37:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:56,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:37:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:56,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:37:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:37:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:37:56,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:37:56,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:37:56,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500504165] [2023-12-19 01:37:56,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500504165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:37:56,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:37:56,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:37:56,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801480921] [2023-12-19 01:37:56,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:37:56,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:37:56,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:37:56,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:37:56,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:37:56,719 INFO L87 Difference]: Start difference. First operand 20308 states and 32062 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:38:01,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:38:01,344 INFO L93 Difference]: Finished difference Result 75826 states and 122949 transitions. [2023-12-19 01:38:01,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 01:38:01,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:38:01,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:38:01,495 INFO L225 Difference]: With dead ends: 75826 [2023-12-19 01:38:01,496 INFO L226 Difference]: Without dead ends: 57294 [2023-12-19 01:38:01,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 01:38:01,534 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 1778 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 3237 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 3333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 3237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:38:01,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1816 Valid, 1939 Invalid, 3333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 3237 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 01:38:01,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57294 states. [2023-12-19 01:38:03,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57294 to 38213. [2023-12-19 01:38:03,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38213 states, 34586 states have (on average 1.5670502515468687) internal successors, (54198), 34735 states have internal predecessors, (54198), 2517 states have call successors, (2517), 935 states have call predecessors, (2517), 1108 states have return successors, (4951), 2670 states have call predecessors, (4951), 2516 states have call successors, (4951) [2023-12-19 01:38:03,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38213 states to 38213 states and 61666 transitions. [2023-12-19 01:38:03,564 INFO L78 Accepts]: Start accepts. Automaton has 38213 states and 61666 transitions. Word has length 141 [2023-12-19 01:38:03,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:38:03,564 INFO L495 AbstractCegarLoop]: Abstraction has 38213 states and 61666 transitions. [2023-12-19 01:38:03,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:38:03,564 INFO L276 IsEmpty]: Start isEmpty. Operand 38213 states and 61666 transitions. [2023-12-19 01:38:03,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:38:03,584 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:38:03,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:38:03,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-19 01:38:03,584 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:38:03,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:38:03,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1568574906, now seen corresponding path program 1 times [2023-12-19 01:38:03,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:38:03,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122381847] [2023-12-19 01:38:03,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:38:03,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:38:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:38:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:03,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:38:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:03,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:38:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:03,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:38:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:03,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:38:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:03,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:38:03,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:38:03,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122381847] [2023-12-19 01:38:03,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122381847] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:38:03,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:38:03,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:38:03,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491579328] [2023-12-19 01:38:03,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:38:03,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:38:03,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:38:03,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:38:03,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:38:03,738 INFO L87 Difference]: Start difference. First operand 38213 states and 61666 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:38:10,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:38:10,039 INFO L93 Difference]: Finished difference Result 145281 states and 239259 transitions. [2023-12-19 01:38:10,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 01:38:10,040 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:38:10,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:38:10,475 INFO L225 Difference]: With dead ends: 145281 [2023-12-19 01:38:10,475 INFO L226 Difference]: Without dead ends: 108844 [2023-12-19 01:38:10,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 01:38:10,587 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 1529 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 3733 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-19 01:38:10,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 1943 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3733 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-19 01:38:10,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108844 states. [2023-12-19 01:38:14,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108844 to 74342. [2023-12-19 01:38:14,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74342 states, 67643 states have (on average 1.574737962538622) internal successors, (106520), 67920 states have internal predecessors, (106520), 4693 states have call successors, (4693), 1703 states have call predecessors, (4693), 2004 states have return successors, (11629), 4974 states have call predecessors, (11629), 4692 states have call successors, (11629) [2023-12-19 01:38:15,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74342 states to 74342 states and 122842 transitions. [2023-12-19 01:38:15,368 INFO L78 Accepts]: Start accepts. Automaton has 74342 states and 122842 transitions. Word has length 141 [2023-12-19 01:38:15,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:38:15,369 INFO L495 AbstractCegarLoop]: Abstraction has 74342 states and 122842 transitions. [2023-12-19 01:38:15,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:38:15,369 INFO L276 IsEmpty]: Start isEmpty. Operand 74342 states and 122842 transitions. [2023-12-19 01:38:15,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:38:15,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:38:15,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:38:15,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-19 01:38:15,401 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:38:15,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:38:15,402 INFO L85 PathProgramCache]: Analyzing trace with hash 529990332, now seen corresponding path program 1 times [2023-12-19 01:38:15,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:38:15,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704162117] [2023-12-19 01:38:15,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:38:15,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:38:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:15,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:38:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:15,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:38:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:15,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:38:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:15,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:38:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:15,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:38:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:15,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:38:15,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:38:15,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704162117] [2023-12-19 01:38:15,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704162117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:38:15,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:38:15,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:38:15,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544778759] [2023-12-19 01:38:15,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:38:15,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:38:15,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:38:15,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:38:15,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:38:15,548 INFO L87 Difference]: Start difference. First operand 74342 states and 122842 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:38:25,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:38:25,000 INFO L93 Difference]: Finished difference Result 281822 states and 473485 transitions. [2023-12-19 01:38:25,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 01:38:25,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:38:25,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:38:25,908 INFO L225 Difference]: With dead ends: 281822 [2023-12-19 01:38:25,908 INFO L226 Difference]: Without dead ends: 209256 [2023-12-19 01:38:26,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 01:38:26,179 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 1674 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 3193 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 3289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 3193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-19 01:38:26,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 1943 Invalid, 3289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 3193 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-19 01:38:26,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209256 states. [2023-12-19 01:38:33,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209256 to 146856. [2023-12-19 01:38:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146856 states, 134141 states have (on average 1.5799196368000834) internal successors, (211932), 134674 states have internal predecessors, (211932), 8917 states have call successors, (8917), 3239 states have call predecessors, (8917), 3796 states have return successors, (29231), 9454 states have call predecessors, (29231), 8916 states have call successors, (29231) [2023-12-19 01:38:35,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146856 states to 146856 states and 250080 transitions. [2023-12-19 01:38:35,154 INFO L78 Accepts]: Start accepts. Automaton has 146856 states and 250080 transitions. Word has length 141 [2023-12-19 01:38:35,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:38:35,155 INFO L495 AbstractCegarLoop]: Abstraction has 146856 states and 250080 transitions. [2023-12-19 01:38:35,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:38:35,155 INFO L276 IsEmpty]: Start isEmpty. Operand 146856 states and 250080 transitions. [2023-12-19 01:38:35,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:38:35,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:38:35,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:38:35,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-19 01:38:35,217 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:38:35,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:38:35,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1611870146, now seen corresponding path program 1 times [2023-12-19 01:38:35,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:38:35,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053119174] [2023-12-19 01:38:35,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:38:35,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:38:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:35,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:38:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:35,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:38:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:35,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:38:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:35,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:38:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:35,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:38:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:38:35,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:38:35,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053119174] [2023-12-19 01:38:35,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053119174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:38:35,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:38:35,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:38:35,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115361748] [2023-12-19 01:38:35,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:38:35,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:38:35,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:38:35,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:38:35,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:38:35,384 INFO L87 Difference]: Start difference. First operand 146856 states and 250080 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:38:44,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:38:44,318 INFO L93 Difference]: Finished difference Result 334334 states and 587068 transitions. [2023-12-19 01:38:44,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 01:38:44,318 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:38:44,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:38:45,238 INFO L225 Difference]: With dead ends: 334334 [2023-12-19 01:38:45,238 INFO L226 Difference]: Without dead ends: 189254 [2023-12-19 01:38:45,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:38:45,617 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1303 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 01:38:45,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 927 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 01:38:45,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189254 states. [2023-12-19 01:38:54,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189254 to 146856. [2023-12-19 01:38:54,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146856 states, 134141 states have (on average 1.5760953027038713) internal successors, (211419), 134674 states have internal predecessors, (211419), 8917 states have call successors, (8917), 3239 states have call predecessors, (8917), 3796 states have return successors, (29231), 9454 states have call predecessors, (29231), 8916 states have call successors, (29231) [2023-12-19 01:38:55,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146856 states to 146856 states and 249567 transitions. [2023-12-19 01:38:55,297 INFO L78 Accepts]: Start accepts. Automaton has 146856 states and 249567 transitions. Word has length 141 [2023-12-19 01:38:55,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:38:55,297 INFO L495 AbstractCegarLoop]: Abstraction has 146856 states and 249567 transitions. [2023-12-19 01:38:55,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:38:55,297 INFO L276 IsEmpty]: Start isEmpty. Operand 146856 states and 249567 transitions. [2023-12-19 01:38:55,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 01:38:55,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:38:55,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:38:55,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-19 01:38:55,369 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:38:55,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:38:55,369 INFO L85 PathProgramCache]: Analyzing trace with hash 2059815548, now seen corresponding path program 1 times [2023-12-19 01:38:55,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:38:55,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416522247] [2023-12-19 01:38:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:38:55,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:38:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:38:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:55,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 01:38:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:55,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:38:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:55,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 01:38:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:55,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 01:38:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:38:55,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:38:55,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:38:55,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416522247] [2023-12-19 01:38:55,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416522247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:38:55,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:38:55,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:38:55,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021025804] [2023-12-19 01:38:55,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:38:55,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:38:55,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:38:55,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:38:55,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:38:55,547 INFO L87 Difference]: Start difference. First operand 146856 states and 249567 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:39:12,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:39:12,280 INFO L93 Difference]: Finished difference Result 546972 states and 944077 transitions. [2023-12-19 01:39:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 01:39:12,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-19 01:39:12,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:39:14,382 INFO L225 Difference]: With dead ends: 546972 [2023-12-19 01:39:14,382 INFO L226 Difference]: Without dead ends: 401892 [2023-12-19 01:39:14,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 01:39:14,994 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 1596 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 3155 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 3251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 3155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:39:14,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 1943 Invalid, 3251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 3155 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-19 01:39:15,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401892 states.