./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.3.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b40fd28e7ab866ebfa545571c21572e184c6ab303d37931a984a360989d0153b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:01,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:01,729 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-31 22:15:01,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:01,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:01,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:01,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:01,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:01,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:15:01,768 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:15:01,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:01,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:01,772 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:01,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:01,773 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:01,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:01,774 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:15:01,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:01,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:01,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:15:01,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:01,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:15:01,784 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:01,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:15:01,785 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:01,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:01,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:01,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:15:01,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:01,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:01,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:01,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:01,791 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:15:01,791 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:15:01,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:15:01,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:01,792 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:01,792 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:01,792 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:01,793 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b40fd28e7ab866ebfa545571c21572e184c6ab303d37931a984a360989d0153b [2024-10-31 22:15:02,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:02,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:02,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:02,133 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:02,134 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:02,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.3.prop1-func-interl.c Unable to find full path for "g++" [2024-10-31 22:15:04,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:04,874 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:04,877 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.3.prop1-func-interl.c [2024-10-31 22:15:04,895 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/data/5de6dad38/79f6f50034c84996b804d4c84b488358/FLAGf7bfdc658 [2024-10-31 22:15:04,916 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/data/5de6dad38/79f6f50034c84996b804d4c84b488358 [2024-10-31 22:15:04,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:04,920 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:04,922 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:04,922 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:04,927 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:04,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:04" (1/1) ... [2024-10-31 22:15:04,929 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10da05d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:04, skipping insertion in model container [2024-10-31 22:15:04,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:04" (1/1) ... [2024-10-31 22:15:05,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:05,268 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.3.prop1-func-interl.c[1174,1187] [2024-10-31 22:15:05,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:05,901 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:15:05,915 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.3.prop1-func-interl.c[1174,1187] [2024-10-31 22:15:06,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:06,192 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:15:06,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06 WrapperNode [2024-10-31 22:15:06,193 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:06,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:06,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:15:06,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:15:06,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (1/1) ... [2024-10-31 22:15:06,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (1/1) ... [2024-10-31 22:15:07,579 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 7845 [2024-10-31 22:15:07,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:07,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:15:07,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:15:07,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:15:07,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (1/1) ... [2024-10-31 22:15:07,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (1/1) ... [2024-10-31 22:15:08,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (1/1) ... [2024-10-31 22:15:08,310 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:15:08,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (1/1) ... [2024-10-31 22:15:08,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (1/1) ... [2024-10-31 22:15:08,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (1/1) ... [2024-10-31 22:15:08,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (1/1) ... [2024-10-31 22:15:08,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (1/1) ... [2024-10-31 22:15:08,677 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (1/1) ... [2024-10-31 22:15:09,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:15:09,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:15:09,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:15:09,018 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:15:09,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (1/1) ... [2024-10-31 22:15:09,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:09,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:09,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:15:09,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917ca9da-0ac4-478c-9c96-adf132f3b9ea/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:15:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:15:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:15:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:15:09,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:15:10,013 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:15:10,015 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:15:22,698 INFO L? ?]: Removed 4439 outVars from TransFormulas that were not future-live. [2024-10-31 22:15:22,698 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:15:22,756 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:15:22,756 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:15:22,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:22 BoogieIcfgContainer [2024-10-31 22:15:22,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:15:22,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:15:22,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:15:22,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:15:22,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:15:04" (1/3) ... [2024-10-31 22:15:22,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d37212c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:22, skipping insertion in model container [2024-10-31 22:15:22,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:06" (2/3) ... [2024-10-31 22:15:22,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d37212c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:22, skipping insertion in model container [2024-10-31 22:15:22,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:22" (3/3) ... [2024-10-31 22:15:22,772 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.3.prop1-func-interl.c [2024-10-31 22:15:22,792 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:15:22,792 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:15:22,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:22,946 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@689626a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:22,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:15:22,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 2762 states, 2760 states have (on average 1.5003623188405797) internal successors, (4141), 2761 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:22,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-31 22:15:22,986 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:22,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:22,987 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:22,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:22,996 INFO L85 PathProgramCache]: Analyzing trace with hash -492632420, now seen corresponding path program 1 times [2024-10-31 22:15:23,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:23,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064808718] [2024-10-31 22:15:23,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:23,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:24,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:24,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064808718] [2024-10-31 22:15:24,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064808718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:24,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:24,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:24,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660391325] [2024-10-31 22:15:24,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:24,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:24,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:24,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:24,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:24,318 INFO L87 Difference]: Start difference. First operand has 2762 states, 2760 states have (on average 1.5003623188405797) internal successors, (4141), 2761 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:24,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:24,555 INFO L93 Difference]: Finished difference Result 5365 states and 8047 transitions. [2024-10-31 22:15:24,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:24,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-10-31 22:15:24,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:24,593 INFO L225 Difference]: With dead ends: 5365 [2024-10-31 22:15:24,593 INFO L226 Difference]: Without dead ends: 2761 [2024-10-31 22:15:24,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:24,608 INFO L432 NwaCegarLoop]: 4135 mSDtfsCounter, 0 mSDsluCounter, 8264 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12399 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:24,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12399 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:24,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2024-10-31 22:15:24,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 2761. [2024-10-31 22:15:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 2760 states have (on average 1.4996376811594203) internal successors, (4139), 2760 states have internal predecessors, (4139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:24,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 4139 transitions. [2024-10-31 22:15:24,753 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 4139 transitions. Word has length 141 [2024-10-31 22:15:24,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:24,754 INFO L471 AbstractCegarLoop]: Abstraction has 2761 states and 4139 transitions. [2024-10-31 22:15:24,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:24,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 4139 transitions. [2024-10-31 22:15:24,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-31 22:15:24,758 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:24,758 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:24,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:15:24,759 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:24,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:24,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1909960201, now seen corresponding path program 1 times [2024-10-31 22:15:24,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:24,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670146887] [2024-10-31 22:15:24,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:24,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:25,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:25,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:25,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670146887] [2024-10-31 22:15:25,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670146887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:25,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:25,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:25,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133532283] [2024-10-31 22:15:25,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:25,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:25,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:25,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:25,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:25,272 INFO L87 Difference]: Start difference. First operand 2761 states and 4139 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:25,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:25,504 INFO L93 Difference]: Finished difference Result 5366 states and 8045 transitions. [2024-10-31 22:15:25,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:25,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-10-31 22:15:25,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:25,520 INFO L225 Difference]: With dead ends: 5366 [2024-10-31 22:15:25,520 INFO L226 Difference]: Without dead ends: 2763 [2024-10-31 22:15:25,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:25,527 INFO L432 NwaCegarLoop]: 4135 mSDtfsCounter, 0 mSDsluCounter, 8260 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12395 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:25,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12395 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:25,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-10-31 22:15:25,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-10-31 22:15:25,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.499275887038378) internal successors, (4141), 2762 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4141 transitions. [2024-10-31 22:15:25,592 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4141 transitions. Word has length 142 [2024-10-31 22:15:25,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:25,594 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4141 transitions. [2024-10-31 22:15:25,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:25,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4141 transitions. [2024-10-31 22:15:25,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-31 22:15:25,602 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:25,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:25,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:15:25,603 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:25,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:25,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2018740971, now seen corresponding path program 1 times [2024-10-31 22:15:25,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:25,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333892291] [2024-10-31 22:15:25,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:25,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:26,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:26,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:26,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333892291] [2024-10-31 22:15:26,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333892291] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:26,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:26,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:26,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245642480] [2024-10-31 22:15:26,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:26,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:26,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:26,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:26,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:26,204 INFO L87 Difference]: Start difference. First operand 2763 states and 4141 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:26,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:26,370 INFO L93 Difference]: Finished difference Result 5374 states and 8055 transitions. [2024-10-31 22:15:26,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:26,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-10-31 22:15:26,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:26,380 INFO L225 Difference]: With dead ends: 5374 [2024-10-31 22:15:26,380 INFO L226 Difference]: Without dead ends: 2769 [2024-10-31 22:15:26,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:26,385 INFO L432 NwaCegarLoop]: 4135 mSDtfsCounter, 4 mSDsluCounter, 8254 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12389 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:26,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 12389 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:26,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2024-10-31 22:15:26,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769. [2024-10-31 22:15:26,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 1.4989161849710984) internal successors, (4149), 2768 states have internal predecessors, (4149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:26,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4149 transitions. [2024-10-31 22:15:26,446 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4149 transitions. Word has length 143 [2024-10-31 22:15:26,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:26,447 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 4149 transitions. [2024-10-31 22:15:26,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:26,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4149 transitions. [2024-10-31 22:15:26,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-31 22:15:26,450 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:26,450 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:26,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:15:26,450 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:26,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:26,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1397370153, now seen corresponding path program 1 times [2024-10-31 22:15:26,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:26,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897200818] [2024-10-31 22:15:26,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:26,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:26,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:26,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897200818] [2024-10-31 22:15:26,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897200818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:26,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:26,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:26,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342657166] [2024-10-31 22:15:26,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:26,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:26,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:26,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:26,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:26,983 INFO L87 Difference]: Start difference. First operand 2769 states and 4149 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:27,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:27,172 INFO L93 Difference]: Finished difference Result 5384 states and 8067 transitions. [2024-10-31 22:15:27,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:27,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2024-10-31 22:15:27,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:27,181 INFO L225 Difference]: With dead ends: 5384 [2024-10-31 22:15:27,181 INFO L226 Difference]: Without dead ends: 2773 [2024-10-31 22:15:27,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:27,186 INFO L432 NwaCegarLoop]: 4135 mSDtfsCounter, 0 mSDsluCounter, 12371 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16506 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:27,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16506 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:27,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2024-10-31 22:15:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2769. [2024-10-31 22:15:27,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 1.4989161849710984) internal successors, (4149), 2768 states have internal predecessors, (4149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:27,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4149 transitions. [2024-10-31 22:15:27,258 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4149 transitions. Word has length 144 [2024-10-31 22:15:27,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:27,259 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 4149 transitions. [2024-10-31 22:15:27,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:27,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4149 transitions. [2024-10-31 22:15:27,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-31 22:15:27,261 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:27,262 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:27,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:15:27,263 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:27,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:27,263 INFO L85 PathProgramCache]: Analyzing trace with hash 540085902, now seen corresponding path program 1 times [2024-10-31 22:15:27,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:27,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754060491] [2024-10-31 22:15:27,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:27,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:27,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:27,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:27,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754060491] [2024-10-31 22:15:27,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754060491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:27,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:27,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:27,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776090441] [2024-10-31 22:15:27,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:27,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:27,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:27,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:27,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:27,738 INFO L87 Difference]: Start difference. First operand 2769 states and 4149 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:31,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:31,990 INFO L93 Difference]: Finished difference Result 7975 states and 11951 transitions. [2024-10-31 22:15:31,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:31,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2024-10-31 22:15:31,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:32,010 INFO L225 Difference]: With dead ends: 7975 [2024-10-31 22:15:32,010 INFO L226 Difference]: Without dead ends: 5364 [2024-10-31 22:15:32,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:32,016 INFO L432 NwaCegarLoop]: 3271 mSDtfsCounter, 3987 mSDsluCounter, 9688 mSDsCounter, 0 mSdLazyCounter, 3354 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3987 SdHoareTripleChecker+Valid, 12959 SdHoareTripleChecker+Invalid, 3355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:32,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3987 Valid, 12959 Invalid, 3355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3354 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-31 22:15:32,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5364 states. [2024-10-31 22:15:32,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5364 to 2872. [2024-10-31 22:15:32,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2872 states, 2871 states have (on average 1.4984326018808778) internal successors, (4302), 2871 states have internal predecessors, (4302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:32,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2872 states to 2872 states and 4302 transitions. [2024-10-31 22:15:32,119 INFO L78 Accepts]: Start accepts. Automaton has 2872 states and 4302 transitions. Word has length 145 [2024-10-31 22:15:32,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:32,120 INFO L471 AbstractCegarLoop]: Abstraction has 2872 states and 4302 transitions. [2024-10-31 22:15:32,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:32,120 INFO L276 IsEmpty]: Start isEmpty. Operand 2872 states and 4302 transitions. [2024-10-31 22:15:32,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-31 22:15:32,123 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:32,124 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:32,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:15:32,125 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:32,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:32,127 INFO L85 PathProgramCache]: Analyzing trace with hash -203221165, now seen corresponding path program 1 times [2024-10-31 22:15:32,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:32,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691022269] [2024-10-31 22:15:32,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:32,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat