./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_fc6c2bd4-420d-43d2-b9bd-79f09a339998/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/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_fc6c2bd4-420d-43d2-b9bd-79f09a339998/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/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 32bit --witnessprinter.graph.data.programhash f77e8c9f93ca54d94eb905f2ce3291ad784a62b1b2b1f919a3731c7174a0c943 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:57:09,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:57:09,395 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 21:57:09,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:57:09,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:57:09,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:57:09,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:57:09,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:57:09,446 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:57:09,447 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:57:09,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:57:09,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:57:09,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:57:09,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:57:09,454 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:57:09,455 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:57:09,455 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:57:09,456 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:57:09,456 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:57:09,456 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:57:09,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:57:09,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:57:09,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:57:09,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:57:09,459 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:57:09,459 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:57:09,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:57:09,460 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:57:09,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:57:09,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:57:09,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:57:09,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:57:09,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:57:09,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:57:09,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:57:09,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:57:09,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:57:09,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:57:09,475 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:57:09,477 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:57:09,477 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:57:09,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:57:09,478 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_fc6c2bd4-420d-43d2-b9bd-79f09a339998/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f77e8c9f93ca54d94eb905f2ce3291ad784a62b1b2b1f919a3731c7174a0c943 [2024-10-31 21:57:09,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:57:09,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:57:09,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:57:09,882 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:57:09,883 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:57:09,884 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i Unable to find full path for "g++" [2024-10-31 21:57:11,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:57:12,137 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:57:12,138 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i [2024-10-31 21:57:12,151 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/bin/uautomizer-verify-4GaUIPS5ZU/data/9a4fb331d/ccb725ee637e4e8fa5be3ce066331cd4/FLAGfd609b79b [2024-10-31 21:57:12,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/bin/uautomizer-verify-4GaUIPS5ZU/data/9a4fb331d/ccb725ee637e4e8fa5be3ce066331cd4 [2024-10-31 21:57:12,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:57:12,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:57:12,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:57:12,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:57:12,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:57:12,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea9c4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12, skipping insertion in model container [2024-10-31 21:57:12,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,252 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:57:12,538 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_fc6c2bd4-420d-43d2-b9bd-79f09a339998/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i[916,929] [2024-10-31 21:57:12,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:57:12,722 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:57:12,734 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_fc6c2bd4-420d-43d2-b9bd-79f09a339998/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i[916,929] [2024-10-31 21:57:12,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:57:12,823 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:57:12,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12 WrapperNode [2024-10-31 21:57:12,824 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:57:12,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:57:12,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:57:12,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:57:12,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,954 INFO L138 Inliner]: procedures = 29, calls = 244, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 811 [2024-10-31 21:57:12,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:57:12,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:57:12,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:57:12,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:57:12,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,981 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:13,025 INFO L175 MemorySlicer]: Split 199 memory accesses to 18 slices as follows [2, 3, 11, 8, 12, 13, 6, 14, 5, 22, 22, 14, 16, 8, 8, 3, 23, 9]. 12 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 19 writes are split as follows [0, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-10-31 21:57:13,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:13,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:13,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:13,074 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:13,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:13,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:13,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:57:13,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:57:13,114 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:57:13,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:57:13,118 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:13,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:57:13,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:13,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:13,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6c2bd4-420d-43d2-b9bd-79f09a339998/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:57:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:57:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 21:57:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 21:57:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 21:57:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 21:57:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-31 21:57:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-31 21:57:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-31 21:57:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-31 21:57:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-31 21:57:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-31 21:57:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-31 21:57:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-31 21:57:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-31 21:57:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-31 21:57:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-31 21:57:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-31 21:57:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-10-31 21:57:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-10-31 21:57:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-31 21:57:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-31 21:57:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-31 21:57:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-31 21:57:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-31 21:57:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-31 21:57:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-31 21:57:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-31 21:57:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-10-31 21:57:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-10-31 21:57:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-10-31 21:57:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-10-31 21:57:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-10-31 21:57:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-10-31 21:57:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-10-31 21:57:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-10-31 21:57:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-10-31 21:57:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#17 [2024-10-31 21:57:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-31 21:57:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-31 21:57:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-31 21:57:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-31 21:57:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-31 21:57:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-31 21:57:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-31 21:57:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-31 21:57:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-10-31 21:57:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-10-31 21:57:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-10-31 21:57:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-10-31 21:57:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-10-31 21:57:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-10-31 21:57:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-10-31 21:57:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-10-31 21:57:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-10-31 21:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#17 [2024-10-31 21:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 21:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 21:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 21:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 21:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-31 21:57:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-31 21:57:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-31 21:57:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-31 21:57:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-31 21:57:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-31 21:57:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-31 21:57:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-31 21:57:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-31 21:57:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-31 21:57:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-31 21:57:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-31 21:57:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-10-31 21:57:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-10-31 21:57:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-31 21:57:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-31 21:57:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-31 21:57:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-31 21:57:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-31 21:57:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-31 21:57:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-31 21:57:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-31 21:57:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-10-31 21:57:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-10-31 21:57:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-10-31 21:57:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-10-31 21:57:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-10-31 21:57:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2024-10-31 21:57:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#14 [2024-10-31 21:57:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#15 [2024-10-31 21:57:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#16 [2024-10-31 21:57:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#17 [2024-10-31 21:57:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 21:57:13,207 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 21:57:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:57:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:57:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 21:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 21:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 21:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 21:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-31 21:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-31 21:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-31 21:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-31 21:57:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-31 21:57:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-31 21:57:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-31 21:57:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-31 21:57:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-31 21:57:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-31 21:57:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-31 21:57:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-31 21:57:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:57:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:57:13,550 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:57:13,553 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:57:14,462 INFO L? ?]: Removed 236 outVars from TransFormulas that were not future-live. [2024-10-31 21:57:14,463 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:57:14,488 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:57:14,488 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 21:57:14,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:14 BoogieIcfgContainer [2024-10-31 21:57:14,489 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:57:14,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:57:14,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:57:14,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:57:14,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:57:12" (1/3) ... [2024-10-31 21:57:14,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc2a6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:57:14, skipping insertion in model container [2024-10-31 21:57:14,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (2/3) ... [2024-10-31 21:57:14,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc2a6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:57:14, skipping insertion in model container [2024-10-31 21:57:14,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:14" (3/3) ... [2024-10-31 21:57:14,504 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-80.i [2024-10-31 21:57:14,529 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:57:14,530 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:57:14,627 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:57:14,633 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;@6122c45f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:57:14,635 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 21:57:14,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 21:57:14,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-31 21:57:14,660 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:14,661 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:14,662 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:57:14,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:14,671 INFO L85 PathProgramCache]: Analyzing trace with hash 329443271, now seen corresponding path program 1 times [2024-10-31 21:57:14,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:14,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919314655] [2024-10-31 21:57:14,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:14,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 21:57:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:57:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 21:57:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 21:57:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 21:57:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 21:57:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 21:57:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 21:57:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-31 21:57:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:57:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 21:57:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 21:57:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 21:57:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-31 21:57:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 21:57:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-31 21:57:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 21:57:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,426 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-31 21:57:15,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:15,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919314655] [2024-10-31 21:57:15,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919314655] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:15,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:15,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:57:15,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834495753] [2024-10-31 21:57:15,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:15,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:57:15,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:15,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:57:15,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:57:15,465 INFO L87 Difference]: Start difference. First operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-31 21:57:15,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:15,518 INFO L93 Difference]: Finished difference Result 301 states and 469 transitions. [2024-10-31 21:57:15,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 21:57:15,524 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-10-31 21:57:15,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:57:15,536 INFO L225 Difference]: With dead ends: 301 [2024-10-31 21:57:15,536 INFO L226 Difference]: Without dead ends: 150 [2024-10-31 21:57:15,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:57:15,551 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:57:15,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:57:15,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-31 21:57:15,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-10-31 21:57:15,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 131 states have (on average 1.4351145038167938) internal successors, (188), 131 states have internal predecessors, (188), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 21:57:15,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 222 transitions. [2024-10-31 21:57:15,635 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 222 transitions. Word has length 153 [2024-10-31 21:57:15,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:57:15,635 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 222 transitions. [2024-10-31 21:57:15,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-31 21:57:15,636 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 222 transitions. [2024-10-31 21:57:15,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-31 21:57:15,645 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:15,647 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:15,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:57:15,648 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:57:15,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:15,648 INFO L85 PathProgramCache]: Analyzing trace with hash 545041713, now seen corresponding path program 1 times [2024-10-31 21:57:15,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:15,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838635518] [2024-10-31 21:57:15,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:15,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 21:57:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:57:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 21:57:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 21:57:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 21:57:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 21:57:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 21:57:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 21:57:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-31 21:57:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:57:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 21:57:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 21:57:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 21:57:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-31 21:57:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 21:57:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-31 21:57:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 21:57:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,302 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-31 21:57:16,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:16,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838635518] [2024-10-31 21:57:16,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838635518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:16,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:16,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:57:16,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944703001] [2024-10-31 21:57:16,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:16,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:57:16,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:16,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:57:16,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:57:16,310 INFO L87 Difference]: Start difference. First operand 150 states and 222 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-31 21:57:16,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:16,380 INFO L93 Difference]: Finished difference Result 299 states and 444 transitions. [2024-10-31 21:57:16,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:57:16,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-10-31 21:57:16,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:57:16,383 INFO L225 Difference]: With dead ends: 299 [2024-10-31 21:57:16,383 INFO L226 Difference]: Without dead ends: 152 [2024-10-31 21:57:16,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 21:57:16,385 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:57:16,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:57:16,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-31 21:57:16,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-10-31 21:57:16,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.4285714285714286) internal successors, (190), 133 states have internal predecessors, (190), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 21:57:16,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 224 transitions. [2024-10-31 21:57:16,399 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 224 transitions. Word has length 153 [2024-10-31 21:57:16,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:57:16,402 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 224 transitions. [2024-10-31 21:57:16,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-31 21:57:16,402 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 224 transitions. [2024-10-31 21:57:16,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-31 21:57:16,404 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:16,405 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:16,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:57:16,405 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:57:16,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:16,406 INFO L85 PathProgramCache]: Analyzing trace with hash -114489809, now seen corresponding path program 1 times [2024-10-31 21:57:16,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:16,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875287221] [2024-10-31 21:57:16,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:16,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 21:57:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:57:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 21:57:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 21:57:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 21:57:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 21:57:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 21:57:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 21:57:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-31 21:57:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:57:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 21:57:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 21:57:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 21:57:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-31 21:57:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 21:57:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-31 21:57:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 21:57:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-31 21:57:16,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:16,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875287221] [2024-10-31 21:57:16,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875287221] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:16,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:16,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:57:16,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88917912] [2024-10-31 21:57:16,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:16,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:57:16,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:16,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:57:16,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:57:16,908 INFO L87 Difference]: Start difference. First operand 152 states and 224 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-31 21:57:16,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:16,964 INFO L93 Difference]: Finished difference Result 303 states and 448 transitions. [2024-10-31 21:57:16,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:57:16,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 153 [2024-10-31 21:57:16,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:57:16,967 INFO L225 Difference]: With dead ends: 303 [2024-10-31 21:57:16,967 INFO L226 Difference]: Without dead ends: 154 [2024-10-31 21:57:16,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 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 21:57:16,970 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:57:16,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:57:16,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-10-31 21:57:16,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-10-31 21:57:16,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.4222222222222223) internal successors, (192), 135 states have internal predecessors, (192), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 21:57:16,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 226 transitions. [2024-10-31 21:57:16,982 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 226 transitions. Word has length 153 [2024-10-31 21:57:16,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:57:16,983 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 226 transitions. [2024-10-31 21:57:16,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-31 21:57:16,984 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 226 transitions. [2024-10-31 21:57:16,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-31 21:57:16,986 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:16,987 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:16,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:57:16,987 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:57:16,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:16,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1837437930, now seen corresponding path program 1 times [2024-10-31 21:57:16,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:16,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042325298] [2024-10-31 21:57:16,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:16,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 21:57:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:57:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 21:57:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 21:57:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 21:57:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 21:57:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 21:57:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 21:57:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-31 21:57:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:57:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 21:57:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 21:57:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 21:57:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-31 21:57:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 21:57:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-31 21:57:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 21:57:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,322 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-31 21:57:17,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:17,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042325298] [2024-10-31 21:57:17,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042325298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:17,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:17,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:57:17,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160244175] [2024-10-31 21:57:17,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:17,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:57:17,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:17,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:57:17,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:57:17,328 INFO L87 Difference]: Start difference. First operand 154 states and 226 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-31 21:57:17,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:17,374 INFO L93 Difference]: Finished difference Result 308 states and 453 transitions. [2024-10-31 21:57:17,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:57:17,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-10-31 21:57:17,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:57:17,378 INFO L225 Difference]: With dead ends: 308 [2024-10-31 21:57:17,378 INFO L226 Difference]: Without dead ends: 157 [2024-10-31 21:57:17,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 21:57:17,380 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:57:17,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 646 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:57:17,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-10-31 21:57:17,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2024-10-31 21:57:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 137 states have (on average 1.416058394160584) internal successors, (194), 137 states have internal predecessors, (194), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 21:57:17,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 228 transitions. [2024-10-31 21:57:17,403 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 228 transitions. Word has length 155 [2024-10-31 21:57:17,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:57:17,404 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 228 transitions. [2024-10-31 21:57:17,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-31 21:57:17,405 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 228 transitions. [2024-10-31 21:57:17,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-31 21:57:17,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:17,408 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:17,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:57:17,409 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:57:17,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:17,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1777470996, now seen corresponding path program 1 times [2024-10-31 21:57:17,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:17,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979383357] [2024-10-31 21:57:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:17,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 21:57:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:57:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 21:57:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 21:57:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 21:57:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 21:57:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 21:57:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 21:57:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-31 21:57:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:57:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 21:57:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 21:57:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 21:57:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-31 21:57:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 21:57:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-31 21:57:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 21:57:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,731 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-31 21:57:17,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:17,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979383357] [2024-10-31 21:57:17,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979383357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:17,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:17,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:57:17,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635278281] [2024-10-31 21:57:17,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:17,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:57:17,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:17,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:57:17,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:57:17,734 INFO L87 Difference]: Start difference. First operand 156 states and 228 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-31 21:57:17,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:17,775 INFO L93 Difference]: Finished difference Result 312 states and 457 transitions. [2024-10-31 21:57:17,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:57:17,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-10-31 21:57:17,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:57:17,778 INFO L225 Difference]: With dead ends: 312 [2024-10-31 21:57:17,779 INFO L226 Difference]: Without dead ends: 159 [2024-10-31 21:57:17,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 21:57:17,781 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:57:17,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 647 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:57:17,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-31 21:57:17,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2024-10-31 21:57:17,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.410071942446043) internal successors, (196), 139 states have internal predecessors, (196), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 21:57:17,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 230 transitions. [2024-10-31 21:57:17,803 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 230 transitions. Word has length 155 [2024-10-31 21:57:17,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:57:17,803 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 230 transitions. [2024-10-31 21:57:17,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-31 21:57:17,804 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 230 transitions. [2024-10-31 21:57:17,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-31 21:57:17,809 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:17,810 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:17,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:57:17,810 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:57:17,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:17,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2463634, now seen corresponding path program 1 times [2024-10-31 21:57:17,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:17,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366223293] [2024-10-31 21:57:17,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:17,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 21:57:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:57:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 21:57:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 21:57:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 21:57:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 21:57:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 21:57:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 21:57:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-31 21:57:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:57:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 21:57:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 21:57:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 21:57:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-31 21:57:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 21:57:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-31 21:57:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 21:57:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:18,124 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-31 21:57:18,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:18,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366223293] [2024-10-31 21:57:18,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366223293] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:18,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:18,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:57:18,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019372846] [2024-10-31 21:57:18,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:18,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:57:18,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:18,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:57:18,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:57:18,127 INFO L87 Difference]: Start difference. First operand 158 states and 230 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-31 21:57:18,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:18,165 INFO L93 Difference]: Finished difference Result 316 states and 461 transitions. [2024-10-31 21:57:18,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:57:18,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-10-31 21:57:18,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:57:18,169 INFO L225 Difference]: With dead ends: 316 [2024-10-31 21:57:18,169 INFO L226 Difference]: Without dead ends: 161 [2024-10-31 21:57:18,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 21:57:18,171 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:57:18,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:57:18,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-10-31 21:57:18,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 160. [2024-10-31 21:57:18,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 141 states have (on average 1.4042553191489362) internal successors, (198), 141 states have internal predecessors, (198), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 21:57:18,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 232 transitions. [2024-10-31 21:57:18,192 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 232 transitions. Word has length 155 [2024-10-31 21:57:18,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:57:18,193 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 232 transitions. [2024-10-31 21:57:18,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-31 21:57:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 232 transitions. [2024-10-31 21:57:18,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-31 21:57:18,199 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:18,199 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:18,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:57:18,200 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:57:18,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:18,200 INFO L85 PathProgramCache]: Analyzing trace with hash -616592, now seen corresponding path program 1 times [2024-10-31 21:57:18,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:18,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146748923] [2024-10-31 21:57:18,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:18,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 21:57:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:57:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 21:57:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 21:57:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 21:57:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 21:57:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 21:57:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 21:57:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-31 21:57:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:57:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 21:57:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 21:57:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 21:57:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-31 21:57:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 21:57:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-31 21:57:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 21:57:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:19,196 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-31 21:57:19,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:19,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146748923] [2024-10-31 21:57:19,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146748923] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:19,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:19,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:57:19,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044998619] [2024-10-31 21:57:19,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:19,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:57:19,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:19,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:57:19,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:57:19,200 INFO L87 Difference]: Start difference. First operand 160 states and 232 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-31 21:57:19,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:19,260 INFO L93 Difference]: Finished difference Result 321 states and 468 transitions. [2024-10-31 21:57:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:57:19,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-10-31 21:57:19,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:57:19,262 INFO L225 Difference]: With dead ends: 321 [2024-10-31 21:57:19,262 INFO L226 Difference]: Without dead ends: 164 [2024-10-31 21:57:19,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:57:19,264 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 2 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:57:19,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 650 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:57:19,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-10-31 21:57:19,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 163. [2024-10-31 21:57:19,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 144 states have (on average 1.4027777777777777) internal successors, (202), 144 states have internal predecessors, (202), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 21:57:19,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 236 transitions. [2024-10-31 21:57:19,272 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 236 transitions. Word has length 155 [2024-10-31 21:57:19,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:57:19,273 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 236 transitions. [2024-10-31 21:57:19,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-31 21:57:19,273 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 236 transitions. [2024-10-31 21:57:19,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-31 21:57:19,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:19,276 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:19,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:57:19,277 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:57:19,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:19,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1806054926, now seen corresponding path program 1 times [2024-10-31 21:57:19,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:19,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630263197] [2024-10-31 21:57:19,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:19,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 21:57:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:57:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 21:57:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 21:57:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 21:57:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 21:57:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 21:57:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 21:57:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-31 21:57:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:57:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 21:57:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 21:57:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 21:57:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-31 21:57:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 21:57:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-31 21:57:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 21:57:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:21,765 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-31 21:57:21,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:21,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630263197] [2024-10-31 21:57:21,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630263197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:21,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:21,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 21:57:21,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880688659] [2024-10-31 21:57:21,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:21,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:57:21,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:21,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:57:21,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:57:21,767 INFO L87 Difference]: Start difference. First operand 163 states and 236 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-31 21:57:22,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:22,017 INFO L93 Difference]: Finished difference Result 383 states and 553 transitions. [2024-10-31 21:57:22,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:57:22,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-10-31 21:57:22,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:57:22,020 INFO L225 Difference]: With dead ends: 383 [2024-10-31 21:57:22,021 INFO L226 Difference]: Without dead ends: 223 [2024-10-31 21:57:22,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:57:22,024 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 73 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:57:22,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1034 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:57:22,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-10-31 21:57:22,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 170. [2024-10-31 21:57:22,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 151 states have (on average 1.403973509933775) internal successors, (212), 151 states have internal predecessors, (212), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 21:57:22,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 246 transitions. [2024-10-31 21:57:22,036 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 246 transitions. Word has length 155 [2024-10-31 21:57:22,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:57:22,037 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 246 transitions. [2024-10-31 21:57:22,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-31 21:57:22,037 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 246 transitions. [2024-10-31 21:57:22,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-31 21:57:22,039 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:22,039 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:22,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:57:22,040 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:57:22,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:22,040 INFO L85 PathProgramCache]: Analyzing trace with hash 494767664, now seen corresponding path program 1 times [2024-10-31 21:57:22,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:22,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869368657] [2024-10-31 21:57:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:22,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat